./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/egcd-ll.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_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/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_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/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_0dcef203-980b-49d0-83eb-beb89e4db1ce/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 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:02:43,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:02:43,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 23:02:43,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:02:43,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:02:43,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:02:43,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:02:43,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:02:43,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:02:43,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:02:43,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:02:43,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:02:43,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:02:43,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:02:43,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:02:43,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:02:43,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:02:43,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:02:43,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:02:43,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:02:43,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:02:43,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:02:43,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:02:43,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:02:43,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:02:43,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:02:43,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:02:43,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:02:43,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:02:43,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:02:43,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:02:43,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:02:43,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:02:43,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:02:43,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:02:43,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:02:43,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:02:43,307 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_0dcef203-980b-49d0-83eb-beb89e4db1ce/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 -> 5cf588c7d7521936f2238a5a4b8ed55e91050a69daa6016b5b2b4a486ef1b9f8 [2024-11-23 23:02:43,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:02:43,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:02:43,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:02:43,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:02:43,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:02:43,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench/egcd-ll.c [2024-11-23 23:02:46,888 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/data/b190f738a/bfed7c27e19047e4b9ba4388e87143be/FLAG5c05d1250 [2024-11-23 23:02:47,253 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:02:47,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/sv-benchmarks/c/nla-digbench/egcd-ll.c [2024-11-23 23:02:47,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/data/b190f738a/bfed7c27e19047e4b9ba4388e87143be/FLAG5c05d1250 [2024-11-23 23:02:47,279 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/data/b190f738a/bfed7c27e19047e4b9ba4388e87143be [2024-11-23 23:02:47,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:02:47,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:02:47,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:02:47,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:02:47,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:02:47,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d563e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47, skipping insertion in model container [2024-11-23 23:02:47,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:02:47,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:02:47,528 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:02:47,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:02:47,580 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:02:47,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47 WrapperNode [2024-11-23 23:02:47,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:02:47,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:02:47,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:02:47,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:02:47,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,638 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2024-11-23 23:02:47,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:02:47,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:02:47,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:02:47,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:02:47,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,688 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]. [2024-11-23 23:02:47,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,692 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,693 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:02:47,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:02:47,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:02:47,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:02:47,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (1/1) ... [2024-11-23 23:02:47,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:02:47,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:47,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:02:47,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:02:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:02:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:02:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:02:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:02:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:02:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:02:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 23:02:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 23:02:47,844 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:02:47,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:02:48,473 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-23 23:02:48,473 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:02:48,491 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:02:48,492 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:02:48,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:02:48 BoogieIcfgContainer [2024-11-23 23:02:48,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:02:48,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:02:48,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:02:48,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:02:48,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:02:47" (1/3) ... [2024-11-23 23:02:48,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3704b0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:02:48, skipping insertion in model container [2024-11-23 23:02:48,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:02:47" (2/3) ... [2024-11-23 23:02:48,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3704b0e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:02:48, skipping insertion in model container [2024-11-23 23:02:48,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:02:48" (3/3) ... [2024-11-23 23:02:48,505 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd-ll.c [2024-11-23 23:02:48,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:02:48,525 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll.c that has 3 procedures, 140 locations, 1 initial locations, 1 loop locations, and 56 error locations. [2024-11-23 23:02:48,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:02:48,614 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;@e324768, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:02:48,614 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-23 23:02:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 128 states have internal predecessors, (134), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 23:02:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-23 23:02:48,629 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:48,629 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:48,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:48,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 959145840, now seen corresponding path program 1 times [2024-11-23 23:02:48,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:48,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358175519] [2024-11-23 23:02:48,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:48,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:48,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:02:48,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:48,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358175519] [2024-11-23 23:02:48,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358175519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:02:48,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942140189] [2024-11-23 23:02:48,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:48,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:48,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:48,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:48,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:02:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:48,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:02:48,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 23:02:48,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:48,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942140189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:48,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:02:48,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:02:48,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514793474] [2024-11-23 23:02:48,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:48,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:02:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:48,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:02:48,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:02:48,958 INFO L87 Difference]: Start difference. First operand has 140 states, 72 states have (on average 1.8611111111111112) internal successors, (134), 128 states have internal predecessors, (134), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:02:49,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:49,007 INFO L93 Difference]: Finished difference Result 276 states and 308 transitions. [2024-11-23 23:02:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:02:49,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-23 23:02:49,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:49,024 INFO L225 Difference]: With dead ends: 276 [2024-11-23 23:02:49,024 INFO L226 Difference]: Without dead ends: 133 [2024-11-23 23:02:49,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:02:49,032 INFO L435 NwaCegarLoop]: 147 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, 147 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 [2024-11-23 23:02:49,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:02:49,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-23 23:02:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-23 23:02:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 67 states have (on average 1.8507462686567164) internal successors, (124), 122 states have internal predecessors, (124), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-23 23:02:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 140 transitions. [2024-11-23 23:02:49,137 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 140 transitions. Word has length 14 [2024-11-23 23:02:49,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:49,138 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 140 transitions. [2024-11-23 23:02:49,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 23:02:49,139 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 140 transitions. [2024-11-23 23:02:49,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-23 23:02:49,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:49,140 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:49,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:02:49,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:49,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:49,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash 567965872, now seen corresponding path program 1 times [2024-11-23 23:02:49,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:49,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238898008] [2024-11-23 23:02:49,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:49,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:49,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911680711] [2024-11-23 23:02:49,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:49,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:49,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:49,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:49,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:02:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:49,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:02:49,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:49,492 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:49,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:49,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238898008] [2024-11-23 23:02:49,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:49,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911680711] [2024-11-23 23:02:49,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911680711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:49,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:49,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:02:49,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879310546] [2024-11-23 23:02:49,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:49,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:02:49,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:49,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:02:49,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:49,495 INFO L87 Difference]: Start difference. First operand 133 states and 140 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:02:49,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:49,905 INFO L93 Difference]: Finished difference Result 217 states and 263 transitions. [2024-11-23 23:02:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:02:49,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-23 23:02:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:49,908 INFO L225 Difference]: With dead ends: 217 [2024-11-23 23:02:49,911 INFO L226 Difference]: Without dead ends: 213 [2024-11-23 23:02:49,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:49,912 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 73 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:49,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 136 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:02:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-23 23:02:49,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 171. [2024-11-23 23:02:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 100 states have (on average 1.86) internal successors, (186), 155 states have internal predecessors, (186), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-23 23:02:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 212 transitions. [2024-11-23 23:02:49,935 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 212 transitions. Word has length 14 [2024-11-23 23:02:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:49,936 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 212 transitions. [2024-11-23 23:02:49,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:02:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 212 transitions. [2024-11-23 23:02:49,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-23 23:02:49,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:49,937 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:49,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:50,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:50,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:50,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 354357906, now seen corresponding path program 1 times [2024-11-23 23:02:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711276223] [2024-11-23 23:02:50,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:50,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631332697] [2024-11-23 23:02:50,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:50,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:50,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:50,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:50,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 23:02:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:50,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:02:50,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:50,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:50,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:50,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711276223] [2024-11-23 23:02:50,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:50,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631332697] [2024-11-23 23:02:50,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631332697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:50,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:50,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:02:50,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307552621] [2024-11-23 23:02:50,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:50,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:02:50,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:50,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:02:50,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:50,242 INFO L87 Difference]: Start difference. First operand 171 states and 212 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:02:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:50,540 INFO L93 Difference]: Finished difference Result 271 states and 335 transitions. [2024-11-23 23:02:50,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:02:50,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-23 23:02:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:50,542 INFO L225 Difference]: With dead ends: 271 [2024-11-23 23:02:50,542 INFO L226 Difference]: Without dead ends: 263 [2024-11-23 23:02:50,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:50,543 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 84 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:50,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 196 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:02:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-23 23:02:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 223. [2024-11-23 23:02:50,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 146 states have (on average 1.8082191780821917) internal successors, (264), 201 states have internal predecessors, (264), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-23 23:02:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 302 transitions. [2024-11-23 23:02:50,581 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 302 transitions. Word has length 16 [2024-11-23 23:02:50,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:50,581 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 302 transitions. [2024-11-23 23:02:50,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:02:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 302 transitions. [2024-11-23 23:02:50,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-23 23:02:50,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:50,582 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:50,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:50,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:50,782 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:50,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1235532916, now seen corresponding path program 1 times [2024-11-23 23:02:50,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:50,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898835087] [2024-11-23 23:02:50,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:50,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:50,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367688827] [2024-11-23 23:02:50,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:50,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:50,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:50,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:50,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 23:02:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:50,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:02:50,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:50,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:50,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:50,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898835087] [2024-11-23 23:02:50,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367688827] [2024-11-23 23:02:50,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367688827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:50,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:50,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:02:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201630523] [2024-11-23 23:02:50,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:50,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:02:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:50,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:02:50,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:50,957 INFO L87 Difference]: Start difference. First operand 223 states and 302 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:02:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:51,387 INFO L93 Difference]: Finished difference Result 257 states and 321 transitions. [2024-11-23 23:02:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:02:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-23 23:02:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:51,389 INFO L225 Difference]: With dead ends: 257 [2024-11-23 23:02:51,389 INFO L226 Difference]: Without dead ends: 243 [2024-11-23 23:02:51,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:51,391 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 61 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:51,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 122 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:02:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-23 23:02:51,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 189. [2024-11-23 23:02:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 117 states have (on average 1.7264957264957266) internal successors, (202), 172 states have internal predecessors, (202), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-23 23:02:51,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 230 transitions. [2024-11-23 23:02:51,416 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 230 transitions. Word has length 18 [2024-11-23 23:02:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:51,416 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 230 transitions. [2024-11-23 23:02:51,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-23 23:02:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 230 transitions. [2024-11-23 23:02:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-23 23:02:51,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:51,418 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:51,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:51,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:51,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:51,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:51,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1964724479, now seen corresponding path program 1 times [2024-11-23 23:02:51,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:51,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383979125] [2024-11-23 23:02:51,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:51,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:51,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208812498] [2024-11-23 23:02:51,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:51,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:51,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:51,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:51,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 23:02:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:51,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 23:02:51,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:51,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:51,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383979125] [2024-11-23 23:02:51,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208812498] [2024-11-23 23:02:51,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208812498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:51,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:51,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:02:51,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114146803] [2024-11-23 23:02:51,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:51,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:02:51,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:51,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:02:51,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:51,787 INFO L87 Difference]: Start difference. First operand 189 states and 230 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:51,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:52,000 INFO L93 Difference]: Finished difference Result 349 states and 447 transitions. [2024-11-23 23:02:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:02:52,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-11-23 23:02:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:52,003 INFO L225 Difference]: With dead ends: 349 [2024-11-23 23:02:52,003 INFO L226 Difference]: Without dead ends: 341 [2024-11-23 23:02:52,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:52,005 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:52,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 190 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:02:52,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-23 23:02:52,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 266. [2024-11-23 23:02:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 185 states have (on average 1.7081081081081082) internal successors, (316), 240 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) [2024-11-23 23:02:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 362 transitions. [2024-11-23 23:02:52,028 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 362 transitions. Word has length 25 [2024-11-23 23:02:52,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:52,029 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 362 transitions. [2024-11-23 23:02:52,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 362 transitions. [2024-11-23 23:02:52,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-23 23:02:52,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:52,030 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:52,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 23:02:52,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:52,230 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:52,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:52,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1685387843, now seen corresponding path program 1 times [2024-11-23 23:02:52,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:52,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421824212] [2024-11-23 23:02:52,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:52,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:52,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179265501] [2024-11-23 23:02:52,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:52,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:52,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:52,275 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:52,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 23:02:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:52,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:52,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:52,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:52,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:52,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421824212] [2024-11-23 23:02:52,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:52,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179265501] [2024-11-23 23:02:52,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179265501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:52,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:52,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:52,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180715454] [2024-11-23 23:02:52,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:52,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:52,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:52,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:52,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:52,459 INFO L87 Difference]: Start difference. First operand 266 states and 362 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:52,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:52,809 INFO L93 Difference]: Finished difference Result 319 states and 427 transitions. [2024-11-23 23:02:52,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:52,809 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-23 23:02:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:52,812 INFO L225 Difference]: With dead ends: 319 [2024-11-23 23:02:52,812 INFO L226 Difference]: Without dead ends: 317 [2024-11-23 23:02:52,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:52,813 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 230 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:52,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 135 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:02:52,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-23 23:02:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 266. [2024-11-23 23:02:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 185 states have (on average 1.6864864864864866) internal successors, (312), 240 states have internal predecessors, (312), 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) [2024-11-23 23:02:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 358 transitions. [2024-11-23 23:02:52,835 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 358 transitions. Word has length 27 [2024-11-23 23:02:52,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:52,835 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 358 transitions. [2024-11-23 23:02:52,835 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:52,836 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 358 transitions. [2024-11-23 23:02:52,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-23 23:02:52,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:52,836 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:52,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 23:02:53,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:53,037 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:53,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:53,038 INFO L85 PathProgramCache]: Analyzing trace with hash 707415645, now seen corresponding path program 1 times [2024-11-23 23:02:53,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:53,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427608099] [2024-11-23 23:02:53,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:53,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:53,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017245268] [2024-11-23 23:02:53,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:53,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:53,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:53,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:53,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 23:02:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:53,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:53,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:53,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427608099] [2024-11-23 23:02:53,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017245268] [2024-11-23 23:02:53,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017245268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:53,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:53,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:53,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614941761] [2024-11-23 23:02:53,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:53,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:53,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:53,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:53,230 INFO L87 Difference]: Start difference. First operand 266 states and 358 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:53,554 INFO L93 Difference]: Finished difference Result 319 states and 423 transitions. [2024-11-23 23:02:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:53,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-11-23 23:02:53,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:53,557 INFO L225 Difference]: With dead ends: 319 [2024-11-23 23:02:53,557 INFO L226 Difference]: Without dead ends: 317 [2024-11-23 23:02:53,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:53,559 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:53,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 150 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:02:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-23 23:02:53,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 266. [2024-11-23 23:02:53,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 185 states have (on average 1.664864864864865) internal successors, (308), 240 states have internal predecessors, (308), 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) [2024-11-23 23:02:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 354 transitions. [2024-11-23 23:02:53,580 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 354 transitions. Word has length 28 [2024-11-23 23:02:53,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:53,580 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 354 transitions. [2024-11-23 23:02:53,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 354 transitions. [2024-11-23 23:02:53,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 23:02:53,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:53,581 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:53,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:53,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:53,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:53,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:53,782 INFO L85 PathProgramCache]: Analyzing trace with hash 455048581, now seen corresponding path program 1 times [2024-11-23 23:02:53,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:53,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134977464] [2024-11-23 23:02:53,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:53,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:53,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744049878] [2024-11-23 23:02:53,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:53,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:53,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:53,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:53,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 23:02:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:53,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:53,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:53,908 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:53,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:53,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134977464] [2024-11-23 23:02:53,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:53,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744049878] [2024-11-23 23:02:53,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744049878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:53,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:53,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:53,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199470249] [2024-11-23 23:02:53,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:53,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:53,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:53,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:53,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:53,910 INFO L87 Difference]: Start difference. First operand 266 states and 354 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:54,355 INFO L93 Difference]: Finished difference Result 339 states and 427 transitions. [2024-11-23 23:02:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-23 23:02:54,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:54,358 INFO L225 Difference]: With dead ends: 339 [2024-11-23 23:02:54,358 INFO L226 Difference]: Without dead ends: 337 [2024-11-23 23:02:54,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:54,359 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 140 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:54,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 159 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:02:54,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-23 23:02:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 267. [2024-11-23 23:02:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 186 states have (on average 1.6451612903225807) internal successors, (306), 241 states have internal predecessors, (306), 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) [2024-11-23 23:02:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 352 transitions. [2024-11-23 23:02:54,388 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 352 transitions. Word has length 29 [2024-11-23 23:02:54,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:54,389 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 352 transitions. [2024-11-23 23:02:54,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 352 transitions. [2024-11-23 23:02:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-23 23:02:54,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:54,390 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:54,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:54,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:54,595 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:54,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:54,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1221604191, now seen corresponding path program 1 times [2024-11-23 23:02:54,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:54,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918849520] [2024-11-23 23:02:54,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:54,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:54,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689854686] [2024-11-23 23:02:54,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:54,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:54,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:54,619 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:54,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 23:02:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:54,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:54,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-23 23:02:54,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918849520] [2024-11-23 23:02:54,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689854686] [2024-11-23 23:02:54,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689854686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:54,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:54,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:54,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370555577] [2024-11-23 23:02:54,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:54,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:54,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:54,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:54,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:54,812 INFO L87 Difference]: Start difference. First operand 267 states and 352 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:55,361 INFO L93 Difference]: Finished difference Result 339 states and 423 transitions. [2024-11-23 23:02:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:55,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-23 23:02:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:55,367 INFO L225 Difference]: With dead ends: 339 [2024-11-23 23:02:55,367 INFO L226 Difference]: Without dead ends: 337 [2024-11-23 23:02:55,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:55,369 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 139 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:55,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 162 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:02:55,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-23 23:02:55,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 268. [2024-11-23 23:02:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 187 states have (on average 1.625668449197861) internal successors, (304), 242 states have internal predecessors, (304), 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) [2024-11-23 23:02:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 350 transitions. [2024-11-23 23:02:55,394 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 350 transitions. Word has length 30 [2024-11-23 23:02:55,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:55,395 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 350 transitions. [2024-11-23 23:02:55,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 23:02:55,395 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 350 transitions. [2024-11-23 23:02:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-23 23:02:55,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:55,398 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:55,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 23:02:55,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-23 23:02:55,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:55,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:55,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1969163192, now seen corresponding path program 1 times [2024-11-23 23:02:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:55,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284405797] [2024-11-23 23:02:55,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:55,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:55,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863028978] [2024-11-23 23:02:55,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:55,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:55,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:55,626 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:55,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 23:02:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:55,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:55,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:02:55,815 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:55,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:55,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284405797] [2024-11-23 23:02:55,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:55,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863028978] [2024-11-23 23:02:55,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863028978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:55,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921270636] [2024-11-23 23:02:55,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:55,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:55,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:55,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:55,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:55,819 INFO L87 Difference]: Start difference. First operand 268 states and 350 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:56,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:56,088 INFO L93 Difference]: Finished difference Result 290 states and 369 transitions. [2024-11-23 23:02:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:56,089 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-23 23:02:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:56,091 INFO L225 Difference]: With dead ends: 290 [2024-11-23 23:02:56,091 INFO L226 Difference]: Without dead ends: 288 [2024-11-23 23:02:56,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:56,092 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 208 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:56,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 145 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:02:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-23 23:02:56,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 269. [2024-11-23 23:02:56,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 243 states have internal predecessors, (303), 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) [2024-11-23 23:02:56,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 349 transitions. [2024-11-23 23:02:56,115 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 349 transitions. Word has length 38 [2024-11-23 23:02:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:56,116 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 349 transitions. [2024-11-23 23:02:56,116 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 349 transitions. [2024-11-23 23:02:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-23 23:02:56,117 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:56,117 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:56,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:56,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 23:02:56,321 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:56,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -914516731, now seen corresponding path program 1 times [2024-11-23 23:02:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:56,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494523130] [2024-11-23 23:02:56,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:56,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566205419] [2024-11-23 23:02:56,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:56,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:56,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:56,346 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:56,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-23 23:02:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:56,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:56,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:02:56,530 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:56,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:56,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494523130] [2024-11-23 23:02:56,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:56,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566205419] [2024-11-23 23:02:56,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566205419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:56,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:56,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:56,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607153499] [2024-11-23 23:02:56,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:56,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:56,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:56,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:56,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:56,534 INFO L87 Difference]: Start difference. First operand 269 states and 349 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:56,847 INFO L93 Difference]: Finished difference Result 290 states and 366 transitions. [2024-11-23 23:02:56,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:56,848 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-23 23:02:56,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:56,849 INFO L225 Difference]: With dead ends: 290 [2024-11-23 23:02:56,850 INFO L226 Difference]: Without dead ends: 288 [2024-11-23 23:02:56,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:56,851 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 153 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:56,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 160 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:02:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-23 23:02:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 270. [2024-11-23 23:02:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 189 states have (on average 1.597883597883598) internal successors, (302), 244 states have internal predecessors, (302), 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) [2024-11-23 23:02:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 348 transitions. [2024-11-23 23:02:56,879 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 348 transitions. Word has length 39 [2024-11-23 23:02:56,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:56,880 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 348 transitions. [2024-11-23 23:02:56,880 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:56,880 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 348 transitions. [2024-11-23 23:02:56,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-23 23:02:56,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:56,882 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:56,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:57,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:57,083 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:57,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1714752490, now seen corresponding path program 1 times [2024-11-23 23:02:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:57,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692556234] [2024-11-23 23:02:57,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:57,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877580048] [2024-11-23 23:02:57,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:57,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:57,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:57,111 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:57,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-23 23:02:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:57,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:57,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:57,221 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:02:57,221 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:57,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:57,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692556234] [2024-11-23 23:02:57,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:57,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877580048] [2024-11-23 23:02:57,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877580048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:57,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:57,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:57,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568000816] [2024-11-23 23:02:57,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:57,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:57,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:57,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:57,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:57,224 INFO L87 Difference]: Start difference. First operand 270 states and 348 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:57,671 INFO L93 Difference]: Finished difference Result 298 states and 355 transitions. [2024-11-23 23:02:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:57,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-23 23:02:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:57,673 INFO L225 Difference]: With dead ends: 298 [2024-11-23 23:02:57,673 INFO L226 Difference]: Without dead ends: 296 [2024-11-23 23:02:57,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:57,674 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 76 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:57,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 234 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:02:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-23 23:02:57,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 271. [2024-11-23 23:02:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 190 states have (on average 1.5842105263157895) internal successors, (301), 245 states have internal predecessors, (301), 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) [2024-11-23 23:02:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 347 transitions. [2024-11-23 23:02:57,694 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 347 transitions. Word has length 40 [2024-11-23 23:02:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:57,694 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 347 transitions. [2024-11-23 23:02:57,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 347 transitions. [2024-11-23 23:02:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-23 23:02:57,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:57,695 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:57,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:57,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:57,896 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:57,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1617719719, now seen corresponding path program 1 times [2024-11-23 23:02:57,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:57,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64556554] [2024-11-23 23:02:57,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:57,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:02:57,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919046023] [2024-11-23 23:02:57,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:57,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:02:57,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:02:57,922 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:02:57,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-23 23:02:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:57,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:02:57,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:02:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:02:58,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:02:58,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:58,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64556554] [2024-11-23 23:02:58,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:02:58,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919046023] [2024-11-23 23:02:58,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919046023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:58,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:58,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:58,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821556451] [2024-11-23 23:02:58,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:58,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:58,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:58,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:58,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:58,067 INFO L87 Difference]: Start difference. First operand 271 states and 347 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:58,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:58,986 INFO L93 Difference]: Finished difference Result 298 states and 352 transitions. [2024-11-23 23:02:58,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:02:58,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-23 23:02:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:58,988 INFO L225 Difference]: With dead ends: 298 [2024-11-23 23:02:58,988 INFO L226 Difference]: Without dead ends: 296 [2024-11-23 23:02:58,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:58,989 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 76 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:58,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 237 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:02:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-23 23:02:59,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 272. [2024-11-23 23:02:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 191 states have (on average 1.5706806282722514) internal successors, (300), 246 states have internal predecessors, (300), 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) [2024-11-23 23:02:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 346 transitions. [2024-11-23 23:02:59,007 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 346 transitions. Word has length 41 [2024-11-23 23:02:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:59,007 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 346 transitions. [2024-11-23 23:02:59,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:02:59,007 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 346 transitions. [2024-11-23 23:02:59,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-23 23:02:59,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:59,008 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:59,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:02:59,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-23 23:02:59,212 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:59,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:59,213 INFO L85 PathProgramCache]: Analyzing trace with hash 881146114, now seen corresponding path program 1 times [2024-11-23 23:02:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:59,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165762028] [2024-11-23 23:02:59,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:02:59,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:59,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165762028] [2024-11-23 23:02:59,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165762028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:59,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:59,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:02:59,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259381987] [2024-11-23 23:02:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:59,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:02:59,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:59,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:02:59,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:59,345 INFO L87 Difference]: Start difference. First operand 272 states and 346 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 23:02:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:59,397 INFO L93 Difference]: Finished difference Result 272 states and 346 transitions. [2024-11-23 23:02:59,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:02:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 48 [2024-11-23 23:02:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:59,399 INFO L225 Difference]: With dead ends: 272 [2024-11-23 23:02:59,399 INFO L226 Difference]: Without dead ends: 270 [2024-11-23 23:02:59,399 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 [2024-11-23 23:02:59,400 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:59,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 197 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:02:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-23 23:02:59,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-23 23:02:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.5392670157068062) internal successors, (294), 244 states have internal predecessors, (294), 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) [2024-11-23 23:02:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 340 transitions. [2024-11-23 23:02:59,416 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 340 transitions. Word has length 48 [2024-11-23 23:02:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:59,417 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 340 transitions. [2024-11-23 23:02:59,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 23:02:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 340 transitions. [2024-11-23 23:02:59,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-23 23:02:59,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:59,418 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:02:59,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:02:59,418 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:59,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:59,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1545725882, now seen corresponding path program 1 times [2024-11-23 23:02:59,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:59,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478160622] [2024-11-23 23:02:59,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:59,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:02:59,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:59,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478160622] [2024-11-23 23:02:59,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478160622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:59,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:59,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:02:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375155371] [2024-11-23 23:02:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:59,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:02:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:59,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:02:59,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:02:59,494 INFO L87 Difference]: Start difference. First operand 270 states and 340 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 23:02:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:59,562 INFO L93 Difference]: Finished difference Result 270 states and 340 transitions. [2024-11-23 23:02:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:02:59,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2024-11-23 23:02:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:59,565 INFO L225 Difference]: With dead ends: 270 [2024-11-23 23:02:59,565 INFO L226 Difference]: Without dead ends: 268 [2024-11-23 23:02:59,565 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 [2024-11-23 23:02:59,566 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 45 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:59,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 196 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:02:59,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-23 23:02:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-23 23:02:59,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 191 states have (on average 1.4973821989528795) internal successors, (286), 242 states have internal predecessors, (286), 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) [2024-11-23 23:02:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 332 transitions. [2024-11-23 23:02:59,582 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 332 transitions. Word has length 49 [2024-11-23 23:02:59,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:59,583 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 332 transitions. [2024-11-23 23:02:59,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-23 23:02:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 332 transitions. [2024-11-23 23:02:59,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:02:59,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:59,584 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-11-23 23:02:59,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:02:59,584 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:02:59,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:59,585 INFO L85 PathProgramCache]: Analyzing trace with hash 672903920, now seen corresponding path program 1 times [2024-11-23 23:02:59,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:59,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109985879] [2024-11-23 23:02:59,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:59,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:02:59,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:59,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109985879] [2024-11-23 23:02:59,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109985879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:59,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:59,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:02:59,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50514909] [2024-11-23 23:02:59,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:59,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:02:59,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:59,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:02:59,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:02:59,709 INFO L87 Difference]: Start difference. First operand 268 states and 332 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:00,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:00,073 INFO L93 Difference]: Finished difference Result 269 states and 332 transitions. [2024-11-23 23:03:00,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:03:00,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-11-23 23:03:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:00,075 INFO L225 Difference]: With dead ends: 269 [2024-11-23 23:03:00,075 INFO L226 Difference]: Without dead ends: 268 [2024-11-23 23:03:00,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:03:00,076 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 156 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:00,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 132 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:03:00,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-23 23:03:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-23 23:03:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 191 states have (on average 1.4921465968586387) internal successors, (285), 242 states have internal predecessors, (285), 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) [2024-11-23 23:03:00,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 331 transitions. [2024-11-23 23:03:00,095 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 331 transitions. Word has length 50 [2024-11-23 23:03:00,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:00,095 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 331 transitions. [2024-11-23 23:03:00,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:00,095 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 331 transitions. [2024-11-23 23:03:00,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-23 23:03:00,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:00,096 INFO L218 NwaCegarLoop]: trace histogram [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, 1] [2024-11-23 23:03:00,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 23:03:00,097 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:00,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 672890018, now seen corresponding path program 1 times [2024-11-23 23:03:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:00,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256166904] [2024-11-23 23:03:00,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:03:00,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256166904] [2024-11-23 23:03:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256166904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:00,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:03:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497848807] [2024-11-23 23:03:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:00,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:00,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:00,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:00,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:03:00,202 INFO L87 Difference]: Start difference. First operand 268 states and 331 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:00,539 INFO L93 Difference]: Finished difference Result 271 states and 334 transitions. [2024-11-23 23:03:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:03:00,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-11-23 23:03:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:00,541 INFO L225 Difference]: With dead ends: 271 [2024-11-23 23:03:00,542 INFO L226 Difference]: Without dead ends: 270 [2024-11-23 23:03:00,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:03:00,542 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 156 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:00,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 132 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:03:00,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-23 23:03:00,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-23 23:03:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 244 states have internal predecessors, (287), 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) [2024-11-23 23:03:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 333 transitions. [2024-11-23 23:03:00,561 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 333 transitions. Word has length 50 [2024-11-23 23:03:00,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:00,561 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 333 transitions. [2024-11-23 23:03:00,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 333 transitions. [2024-11-23 23:03:00,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-23 23:03:00,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:00,562 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-11-23 23:03:00,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:03:00,562 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:00,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1868419584, now seen corresponding path program 1 times [2024-11-23 23:03:00,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:00,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813799820] [2024-11-23 23:03:00,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:00,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:03:00,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:00,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813799820] [2024-11-23 23:03:00,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813799820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:00,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:00,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:03:00,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284363381] [2024-11-23 23:03:00,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:00,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:03:00,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:00,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:03:00,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:03:00,661 INFO L87 Difference]: Start difference. First operand 270 states and 333 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:00,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:00,946 INFO L93 Difference]: Finished difference Result 327 states and 401 transitions. [2024-11-23 23:03:00,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:03:00,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2024-11-23 23:03:00,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:00,950 INFO L225 Difference]: With dead ends: 327 [2024-11-23 23:03:00,950 INFO L226 Difference]: Without dead ends: 323 [2024-11-23 23:03:00,950 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 [2024-11-23 23:03:00,951 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 43 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:00,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 136 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:03:00,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-23 23:03:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 280. [2024-11-23 23:03:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 203 states have (on average 1.4679802955665024) internal successors, (298), 254 states have internal predecessors, (298), 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) [2024-11-23 23:03:00,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 344 transitions. [2024-11-23 23:03:00,996 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 344 transitions. Word has length 53 [2024-11-23 23:03:00,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:00,997 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 344 transitions. [2024-11-23 23:03:00,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 344 transitions. [2024-11-23 23:03:00,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-23 23:03:00,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:00,999 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:00,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:03:00,999 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:01,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:01,001 INFO L85 PathProgramCache]: Analyzing trace with hash 254894137, now seen corresponding path program 1 times [2024-11-23 23:03:01,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:01,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881772838] [2024-11-23 23:03:01,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:01,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198194488] [2024-11-23 23:03:01,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:01,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:01,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:01,022 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:01,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-23 23:03:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:01,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:03:01,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:03:01,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:01,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:01,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881772838] [2024-11-23 23:03:01,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:01,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198194488] [2024-11-23 23:03:01,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198194488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:01,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:01,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-23 23:03:01,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956606964] [2024-11-23 23:03:01,576 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:01,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:01,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:01,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:01,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:03:01,577 INFO L87 Difference]: Start difference. First operand 280 states and 344 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:01,868 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2024-11-23 23:03:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:03:01,868 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-23 23:03:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:01,870 INFO L225 Difference]: With dead ends: 321 [2024-11-23 23:03:01,870 INFO L226 Difference]: Without dead ends: 319 [2024-11-23 23:03:01,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:03:01,871 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 72 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:01,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 130 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:03:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-23 23:03:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 281. [2024-11-23 23:03:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 204 states have (on average 1.4607843137254901) internal successors, (298), 255 states have internal predecessors, (298), 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) [2024-11-23 23:03:01,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 344 transitions. [2024-11-23 23:03:01,893 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 344 transitions. Word has length 55 [2024-11-23 23:03:01,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:01,893 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 344 transitions. [2024-11-23 23:03:01,893 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:01,893 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 344 transitions. [2024-11-23 23:03:01,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-23 23:03:01,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:01,894 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:01,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:02,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:02,098 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:02,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:02,099 INFO L85 PathProgramCache]: Analyzing trace with hash -688216298, now seen corresponding path program 1 times [2024-11-23 23:03:02,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:02,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378358566] [2024-11-23 23:03:02,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:02,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:02,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683875635] [2024-11-23 23:03:02,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:02,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:02,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:02,117 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:02,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-23 23:03:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:02,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:03:02,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-23 23:03:02,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:02,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:02,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378358566] [2024-11-23 23:03:02,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:02,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683875635] [2024-11-23 23:03:02,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683875635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:02,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:02,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-23 23:03:02,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490959709] [2024-11-23 23:03:02,588 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:02,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:02,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:02,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:02,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:03:02,589 INFO L87 Difference]: Start difference. First operand 281 states and 344 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:02,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:03,000 INFO L93 Difference]: Finished difference Result 321 states and 393 transitions. [2024-11-23 23:03:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:03:03,000 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-11-23 23:03:03,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:03,002 INFO L225 Difference]: With dead ends: 321 [2024-11-23 23:03:03,002 INFO L226 Difference]: Without dead ends: 319 [2024-11-23 23:03:03,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:03:03,003 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 36 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:03,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 173 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:03:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-23 23:03:03,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2024-11-23 23:03:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 205 states have (on average 1.4536585365853658) internal successors, (298), 256 states have internal predecessors, (298), 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) [2024-11-23 23:03:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 344 transitions. [2024-11-23 23:03:03,023 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 344 transitions. Word has length 56 [2024-11-23 23:03:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:03,023 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 344 transitions. [2024-11-23 23:03:03,023 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, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 344 transitions. [2024-11-23 23:03:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-23 23:03:03,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:03,024 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:03,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:03,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-23 23:03:03,225 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:03,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1522186109, now seen corresponding path program 1 times [2024-11-23 23:03:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:03,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741827669] [2024-11-23 23:03:03,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:03,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063219392] [2024-11-23 23:03:03,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:03,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:03,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:03,244 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:03,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-23 23:03:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:03,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:03:03,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-23 23:03:03,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:03:03,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741827669] [2024-11-23 23:03:03,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063219392] [2024-11-23 23:03:03,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063219392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:03,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:03,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:03:03,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594006281] [2024-11-23 23:03:03,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:03,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:03,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:03,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:03,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:03:03,378 INFO L87 Difference]: Start difference. First operand 282 states and 344 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:03,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:03,679 INFO L93 Difference]: Finished difference Result 334 states and 391 transitions. [2024-11-23 23:03:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:03:03,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-23 23:03:03,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:03,681 INFO L225 Difference]: With dead ends: 334 [2024-11-23 23:03:03,681 INFO L226 Difference]: Without dead ends: 333 [2024-11-23 23:03:03,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:03:03,682 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 109 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:03,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 156 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:03:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-23 23:03:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 282. [2024-11-23 23:03:03,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 205 states have (on average 1.448780487804878) internal successors, (297), 256 states have internal predecessors, (297), 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) [2024-11-23 23:03:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 343 transitions. [2024-11-23 23:03:03,702 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 343 transitions. Word has length 59 [2024-11-23 23:03:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:03,703 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 343 transitions. [2024-11-23 23:03:03,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 343 transitions. [2024-11-23 23:03:03,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-23 23:03:03,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:03,704 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:03,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-23 23:03:03,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-23 23:03:03,904 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:03,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:03,905 INFO L85 PathProgramCache]: Analyzing trace with hash -343942249, now seen corresponding path program 1 times [2024-11-23 23:03:03,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:03,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783608686] [2024-11-23 23:03:03,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:03,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 23:03:04,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:04,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783608686] [2024-11-23 23:03:04,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783608686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:04,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278116665] [2024-11-23 23:03:04,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:04,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:04,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:04,089 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:04,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-23 23:03:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:04,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:03:04,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 23:03:04,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:03:04,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278116665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:04,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:04,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-23 23:03:04,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176327353] [2024-11-23 23:03:04,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:04,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:04,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:04,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:04,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:03:04,425 INFO L87 Difference]: Start difference. First operand 282 states and 343 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:04,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:04,981 INFO L93 Difference]: Finished difference Result 318 states and 390 transitions. [2024-11-23 23:03:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:03:04,982 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), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 61 [2024-11-23 23:03:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:04,983 INFO L225 Difference]: With dead ends: 318 [2024-11-23 23:03:04,984 INFO L226 Difference]: Without dead ends: 317 [2024-11-23 23:03:04,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:04,986 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 62 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:04,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 122 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:03:04,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-23 23:03:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 283. [2024-11-23 23:03:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 206 states have (on average 1.441747572815534) internal successors, (297), 257 states have internal predecessors, (297), 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) [2024-11-23 23:03:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 343 transitions. [2024-11-23 23:03:05,007 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 343 transitions. Word has length 61 [2024-11-23 23:03:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:05,008 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 343 transitions. [2024-11-23 23:03:05,008 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), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 343 transitions. [2024-11-23 23:03:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-23 23:03:05,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:05,009 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:05,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:05,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-23 23:03:05,210 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:05,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash -56870822, now seen corresponding path program 1 times [2024-11-23 23:03:05,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:05,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413988548] [2024-11-23 23:03:05,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:05,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:05,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682702091] [2024-11-23 23:03:05,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:05,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:05,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:05,228 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:05,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-23 23:03:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:05,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:03:05,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-23 23:03:05,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:03:05,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:05,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413988548] [2024-11-23 23:03:05,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:05,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682702091] [2024-11-23 23:03:05,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682702091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:05,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:05,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:03:05,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618487139] [2024-11-23 23:03:05,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:05,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:05,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:05,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:03:05,460 INFO L87 Difference]: Start difference. First operand 283 states and 343 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:05,855 INFO L93 Difference]: Finished difference Result 336 states and 388 transitions. [2024-11-23 23:03:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:03:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-23 23:03:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:05,858 INFO L225 Difference]: With dead ends: 336 [2024-11-23 23:03:05,858 INFO L226 Difference]: Without dead ends: 333 [2024-11-23 23:03:05,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:03:05,859 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 109 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:05,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 160 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:03:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-23 23:03:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 286. [2024-11-23 23:03:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.4354066985645932) internal successors, (300), 260 states have internal predecessors, (300), 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) [2024-11-23 23:03:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 346 transitions. [2024-11-23 23:03:05,879 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 346 transitions. Word has length 60 [2024-11-23 23:03:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:05,879 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 346 transitions. [2024-11-23 23:03:05,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:03:05,880 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 346 transitions. [2024-11-23 23:03:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-23 23:03:05,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:05,880 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:05,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:06,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-23 23:03:06,081 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:06,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:06,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2072274986, now seen corresponding path program 1 times [2024-11-23 23:03:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:06,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973109803] [2024-11-23 23:03:06,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:06,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:06,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973109803] [2024-11-23 23:03:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973109803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793604066] [2024-11-23 23:03:06,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:06,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:06,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:06,319 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:06,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-23 23:03:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:06,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:03:06,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:06,627 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 23:03:06,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:03:06,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793604066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:06,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:06,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-23 23:03:06,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155150664] [2024-11-23 23:03:06,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:06,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:03:06,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:06,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:03:06,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:06,629 INFO L87 Difference]: Start difference. First operand 286 states and 346 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:07,157 INFO L93 Difference]: Finished difference Result 318 states and 385 transitions. [2024-11-23 23:03:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:03:07,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2024-11-23 23:03:07,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:07,158 INFO L225 Difference]: With dead ends: 318 [2024-11-23 23:03:07,158 INFO L226 Difference]: Without dead ends: 317 [2024-11-23 23:03:07,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:03:07,159 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 59 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:07,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 130 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:03:07,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-23 23:03:07,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 287. [2024-11-23 23:03:07,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 210 states have (on average 1.4285714285714286) internal successors, (300), 261 states have internal predecessors, (300), 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) [2024-11-23 23:03:07,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 346 transitions. [2024-11-23 23:03:07,179 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 346 transitions. Word has length 62 [2024-11-23 23:03:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:07,179 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 346 transitions. [2024-11-23 23:03:07,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:07,180 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 346 transitions. [2024-11-23 23:03:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 23:03:07,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:07,181 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-23 23:03:07,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:07,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:07,385 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:07,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1748875786, now seen corresponding path program 1 times [2024-11-23 23:03:07,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:07,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214658320] [2024-11-23 23:03:07,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:07,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:07,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324942024] [2024-11-23 23:03:07,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:07,417 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:07,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-23 23:03:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:07,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:03:07,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:07,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:10,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214658320] [2024-11-23 23:03:10,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324942024] [2024-11-23 23:03:10,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324942024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:10,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:10,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-23 23:03:10,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389451849] [2024-11-23 23:03:10,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:10,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:10,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:10,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:10,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-23 23:03:10,112 INFO L87 Difference]: Start difference. First operand 287 states and 346 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:10,861 INFO L93 Difference]: Finished difference Result 469 states and 592 transitions. [2024-11-23 23:03:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:03:10,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 66 [2024-11-23 23:03:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:10,864 INFO L225 Difference]: With dead ends: 469 [2024-11-23 23:03:10,864 INFO L226 Difference]: Without dead ends: 465 [2024-11-23 23:03:10,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-23 23:03:10,865 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 261 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:10,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 304 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:03:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-23 23:03:10,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 361. [2024-11-23 23:03:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 275 states have (on average 1.469090909090909) internal successors, (404), 326 states have internal predecessors, (404), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:03:10,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 468 transitions. [2024-11-23 23:03:10,890 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 468 transitions. Word has length 66 [2024-11-23 23:03:10,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:10,891 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 468 transitions. [2024-11-23 23:03:10,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:10,891 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 468 transitions. [2024-11-23 23:03:10,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 23:03:10,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:10,892 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-23 23:03:10,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-23 23:03:11,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-23 23:03:11,092 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:11,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:11,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1619425422, now seen corresponding path program 1 times [2024-11-23 23:03:11,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:11,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909726322] [2024-11-23 23:03:11,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:11,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:11,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770928216] [2024-11-23 23:03:11,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:11,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:11,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:11,116 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:11,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-23 23:03:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:11,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:03:11,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:11,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:14,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909726322] [2024-11-23 23:03:14,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770928216] [2024-11-23 23:03:14,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770928216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:14,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:14,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-23 23:03:14,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74886736] [2024-11-23 23:03:14,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:14,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:14,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:14,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:14,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2024-11-23 23:03:14,162 INFO L87 Difference]: Start difference. First operand 361 states and 468 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:14,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:14,697 INFO L93 Difference]: Finished difference Result 391 states and 493 transitions. [2024-11-23 23:03:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:03:14,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2024-11-23 23:03:14,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:14,699 INFO L225 Difference]: With dead ends: 391 [2024-11-23 23:03:14,699 INFO L226 Difference]: Without dead ends: 385 [2024-11-23 23:03:14,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2024-11-23 23:03:14,700 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 178 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:14,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 368 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:03:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-23 23:03:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 355. [2024-11-23 23:03:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 275 states have (on average 1.4145454545454546) internal successors, (389), 320 states have internal predecessors, (389), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-23 23:03:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 453 transitions. [2024-11-23 23:03:14,726 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 453 transitions. Word has length 67 [2024-11-23 23:03:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:14,726 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 453 transitions. [2024-11-23 23:03:14,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 453 transitions. [2024-11-23 23:03:14,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 23:03:14,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:14,727 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-23 23:03:14,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:14,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:14,928 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:14,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1337419532, now seen corresponding path program 1 times [2024-11-23 23:03:14,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:14,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713116004] [2024-11-23 23:03:14,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:14,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:14,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617079680] [2024-11-23 23:03:14,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:14,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:14,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:14,946 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:14,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-23 23:03:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:14,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:03:14,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:15,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:15,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:15,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713116004] [2024-11-23 23:03:15,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:15,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617079680] [2024-11-23 23:03:15,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617079680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:15,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:15,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-23 23:03:15,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307475444] [2024-11-23 23:03:15,650 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:15,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:03:15,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:15,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:03:15,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:03:15,651 INFO L87 Difference]: Start difference. First operand 355 states and 453 transitions. Second operand has 9 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:16,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:16,768 INFO L93 Difference]: Finished difference Result 496 states and 656 transitions. [2024-11-23 23:03:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:03:16,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-11-23 23:03:16,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:16,771 INFO L225 Difference]: With dead ends: 496 [2024-11-23 23:03:16,771 INFO L226 Difference]: Without dead ends: 489 [2024-11-23 23:03:16,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:03:16,773 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 403 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:16,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 250 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:03:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-23 23:03:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 446. [2024-11-23 23:03:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 356 states have (on average 1.4634831460674158) internal successors, (521), 401 states have internal predecessors, (521), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-23 23:03:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 605 transitions. [2024-11-23 23:03:16,805 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 605 transitions. Word has length 68 [2024-11-23 23:03:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:16,806 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 605 transitions. [2024-11-23 23:03:16,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 605 transitions. [2024-11-23 23:03:16,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-23 23:03:16,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:16,807 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-23 23:03:16,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:17,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-23 23:03:17,007 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:17,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1489667404, now seen corresponding path program 1 times [2024-11-23 23:03:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:17,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222658095] [2024-11-23 23:03:17,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:17,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:17,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814132940] [2024-11-23 23:03:17,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:17,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:17,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:17,032 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:17,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-23 23:03:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:17,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:03:17,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:17,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:17,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222658095] [2024-11-23 23:03:17,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814132940] [2024-11-23 23:03:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814132940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:17,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:17,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-23 23:03:17,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436780483] [2024-11-23 23:03:17,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:17,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:03:17,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:17,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:03:17,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:03:17,858 INFO L87 Difference]: Start difference. First operand 446 states and 605 transitions. Second operand has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:18,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:18,986 INFO L93 Difference]: Finished difference Result 547 states and 739 transitions. [2024-11-23 23:03:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:03:18,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2024-11-23 23:03:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:18,988 INFO L225 Difference]: With dead ends: 547 [2024-11-23 23:03:18,988 INFO L226 Difference]: Without dead ends: 545 [2024-11-23 23:03:18,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:03:18,989 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 300 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:18,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 304 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:03:18,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-23 23:03:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 480. [2024-11-23 23:03:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 386 states have (on average 1.4585492227979275) internal successors, (563), 431 states have internal predecessors, (563), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-23 23:03:19,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 655 transitions. [2024-11-23 23:03:19,026 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 655 transitions. Word has length 69 [2024-11-23 23:03:19,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:19,027 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 655 transitions. [2024-11-23 23:03:19,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 23:03:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 655 transitions. [2024-11-23 23:03:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-23 23:03:19,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:19,028 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-23 23:03:19,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-23 23:03:19,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-23 23:03:19,229 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:19,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:19,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1064950798, now seen corresponding path program 1 times [2024-11-23 23:03:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:19,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924779534] [2024-11-23 23:03:19,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:19,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:19,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455647831] [2024-11-23 23:03:19,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:19,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:19,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:19,247 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:19,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-23 23:03:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:19,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-23 23:03:19,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:19,837 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 23:03:19,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-23 23:03:20,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:20,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924779534] [2024-11-23 23:03:20,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:20,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455647831] [2024-11-23 23:03:20,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455647831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:20,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:03:20,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-23 23:03:20,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113771618] [2024-11-23 23:03:20,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:20,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:03:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:20,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:03:20,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:20,242 INFO L87 Difference]: Start difference. First operand 480 states and 655 transitions. Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-23 23:03:22,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:22,104 INFO L93 Difference]: Finished difference Result 609 states and 845 transitions. [2024-11-23 23:03:22,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:03:22,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 70 [2024-11-23 23:03:22,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:22,107 INFO L225 Difference]: With dead ends: 609 [2024-11-23 23:03:22,107 INFO L226 Difference]: Without dead ends: 576 [2024-11-23 23:03:22,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:03:22,108 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 374 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:22,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 191 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-23 23:03:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-23 23:03:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 528. [2024-11-23 23:03:22,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 432 states have (on average 1.462962962962963) internal successors, (632), 476 states have internal predecessors, (632), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-23 23:03:22,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 730 transitions. [2024-11-23 23:03:22,154 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 730 transitions. Word has length 70 [2024-11-23 23:03:22,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:22,155 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 730 transitions. [2024-11-23 23:03:22,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-23 23:03:22,155 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 730 transitions. [2024-11-23 23:03:22,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-23 23:03:22,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:22,156 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-23 23:03:22,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:22,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-23 23:03:22,356 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:22,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1346263562, now seen corresponding path program 1 times [2024-11-23 23:03:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:22,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700681684] [2024-11-23 23:03:22,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:22,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:22,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551947200] [2024-11-23 23:03:22,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:22,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:22,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:22,373 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:22,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-23 23:03:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:22,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:03:22,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:23,036 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:23,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:23,484 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-23 23:03:23,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:23,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700681684] [2024-11-23 23:03:23,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:23,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551947200] [2024-11-23 23:03:23,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551947200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:23,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:03:23,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-23 23:03:23,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419396974] [2024-11-23 23:03:23,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:23,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:03:23,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:23,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:03:23,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:03:23,487 INFO L87 Difference]: Start difference. First operand 528 states and 730 transitions. Second operand has 15 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-23 23:03:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:25,896 INFO L93 Difference]: Finished difference Result 681 states and 948 transitions. [2024-11-23 23:03:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:03:25,896 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 71 [2024-11-23 23:03:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:25,898 INFO L225 Difference]: With dead ends: 681 [2024-11-23 23:03:25,899 INFO L226 Difference]: Without dead ends: 677 [2024-11-23 23:03:25,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2024-11-23 23:03:25,899 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 1191 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:25,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 360 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 23:03:25,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-23 23:03:25,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 586. [2024-11-23 23:03:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 486 states have (on average 1.448559670781893) internal successors, (704), 529 states have internal predecessors, (704), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-23 23:03:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 812 transitions. [2024-11-23 23:03:25,949 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 812 transitions. Word has length 71 [2024-11-23 23:03:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:25,949 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 812 transitions. [2024-11-23 23:03:25,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 7.666666666666667) internal successors, (92), 13 states have internal predecessors, (92), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-23 23:03:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 812 transitions. [2024-11-23 23:03:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 23:03:25,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:25,951 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-23 23:03:25,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:26,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:26,155 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:26,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1991780207, now seen corresponding path program 1 times [2024-11-23 23:03:26,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:26,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454600012] [2024-11-23 23:03:26,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:26,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635358216] [2024-11-23 23:03:26,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:26,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:26,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:26,173 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:26,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-23 23:03:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:26,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:03:26,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:26,591 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 23:03:26,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:26,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454600012] [2024-11-23 23:03:26,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:26,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635358216] [2024-11-23 23:03:26,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635358216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:26,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:26,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-23 23:03:26,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856299789] [2024-11-23 23:03:26,870 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:26,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:26,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:26,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:26,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:26,871 INFO L87 Difference]: Start difference. First operand 586 states and 812 transitions. Second operand has 8 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-23 23:03:27,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:27,433 INFO L93 Difference]: Finished difference Result 863 states and 1236 transitions. [2024-11-23 23:03:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:03:27,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 77 [2024-11-23 23:03:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:27,440 INFO L225 Difference]: With dead ends: 863 [2024-11-23 23:03:27,440 INFO L226 Difference]: Without dead ends: 861 [2024-11-23 23:03:27,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:27,441 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 414 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:27,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 256 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:03:27,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-23 23:03:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 808. [2024-11-23 23:03:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 681 states have (on average 1.4772393538913362) internal successors, (1006), 724 states have internal predecessors, (1006), 81 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:03:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1168 transitions. [2024-11-23 23:03:27,518 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1168 transitions. Word has length 77 [2024-11-23 23:03:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:27,518 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1168 transitions. [2024-11-23 23:03:27,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-23 23:03:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1168 transitions. [2024-11-23 23:03:27,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-23 23:03:27,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:27,519 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-23 23:03:27,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:27,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:27,723 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:27,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1615644346, now seen corresponding path program 1 times [2024-11-23 23:03:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:27,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21836776] [2024-11-23 23:03:27,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:27,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:27,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464947755] [2024-11-23 23:03:27,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:27,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:27,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:27,763 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:27,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-23 23:03:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:27,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:03:27,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 23:03:28,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:28,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:28,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21836776] [2024-11-23 23:03:28,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:28,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464947755] [2024-11-23 23:03:28,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464947755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:28,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:28,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-23 23:03:28,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142286338] [2024-11-23 23:03:28,498 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:28,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:28,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:28,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:28,499 INFO L87 Difference]: Start difference. First operand 808 states and 1168 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-23 23:03:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:29,026 INFO L93 Difference]: Finished difference Result 814 states and 1171 transitions. [2024-11-23 23:03:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:03:29,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 78 [2024-11-23 23:03:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:29,029 INFO L225 Difference]: With dead ends: 814 [2024-11-23 23:03:29,029 INFO L226 Difference]: Without dead ends: 808 [2024-11-23 23:03:29,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:03:29,030 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 247 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:29,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 269 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:03:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-23 23:03:29,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 678. [2024-11-23 23:03:29,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 570 states have (on average 1.3982456140350876) internal successors, (797), 607 states have internal predecessors, (797), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-23 23:03:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 933 transitions. [2024-11-23 23:03:29,095 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 933 transitions. Word has length 78 [2024-11-23 23:03:29,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:29,096 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 933 transitions. [2024-11-23 23:03:29,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-23 23:03:29,096 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 933 transitions. [2024-11-23 23:03:29,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-23 23:03:29,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:29,099 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-23 23:03:29,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:29,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:29,300 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:29,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:29,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2037700045, now seen corresponding path program 1 times [2024-11-23 23:03:29,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:29,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782058117] [2024-11-23 23:03:29,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:29,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654753546] [2024-11-23 23:03:29,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:29,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:29,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:29,318 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:29,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-23 23:03:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:29,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:03:29,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 23:03:29,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:30,364 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-23 23:03:30,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:30,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782058117] [2024-11-23 23:03:30,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:30,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654753546] [2024-11-23 23:03:30,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654753546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:30,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:03:30,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-23 23:03:30,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525730656] [2024-11-23 23:03:30,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:30,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:03:30,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:30,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:03:30,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:03:30,366 INFO L87 Difference]: Start difference. First operand 678 states and 933 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:03:33,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:33,124 INFO L93 Difference]: Finished difference Result 824 states and 1154 transitions. [2024-11-23 23:03:33,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:03:33,124 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 81 [2024-11-23 23:03:33,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:33,126 INFO L225 Difference]: With dead ends: 824 [2024-11-23 23:03:33,127 INFO L226 Difference]: Without dead ends: 822 [2024-11-23 23:03:33,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:03:33,127 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 378 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:33,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 257 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:03:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-23 23:03:33,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 781. [2024-11-23 23:03:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 665 states have (on average 1.4030075187969926) internal successors, (933), 701 states have internal predecessors, (933), 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) [2024-11-23 23:03:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1087 transitions. [2024-11-23 23:03:33,211 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1087 transitions. Word has length 81 [2024-11-23 23:03:33,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:33,211 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1087 transitions. [2024-11-23 23:03:33,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:03:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1087 transitions. [2024-11-23 23:03:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-23 23:03:33,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:33,212 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-23 23:03:33,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-23 23:03:33,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:33,413 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1255808126, now seen corresponding path program 1 times [2024-11-23 23:03:33,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:33,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266646141] [2024-11-23 23:03:33,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:33,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:33,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826938268] [2024-11-23 23:03:33,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:33,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:33,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:33,434 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:33,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-23 23:03:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:33,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 23:03:33,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 23:03:34,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-23 23:03:34,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:34,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266646141] [2024-11-23 23:03:34,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:34,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826938268] [2024-11-23 23:03:34,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826938268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:34,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:03:34,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-23 23:03:34,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016518488] [2024-11-23 23:03:34,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:34,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:03:34,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:34,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:03:34,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:03:34,576 INFO L87 Difference]: Start difference. First operand 781 states and 1087 transitions. Second operand has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-23 23:03:36,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:36,656 INFO L93 Difference]: Finished difference Result 895 states and 1243 transitions. [2024-11-23 23:03:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:03:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) Word has length 82 [2024-11-23 23:03:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:36,660 INFO L225 Difference]: With dead ends: 895 [2024-11-23 23:03:36,660 INFO L226 Difference]: Without dead ends: 891 [2024-11-23 23:03:36,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:03:36,662 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 712 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:36,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 287 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 23:03:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-23 23:03:36,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 800. [2024-11-23 23:03:36,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 683 states have (on average 1.404099560761347) internal successors, (959), 718 states have internal predecessors, (959), 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) [2024-11-23 23:03:36,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1117 transitions. [2024-11-23 23:03:36,754 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1117 transitions. Word has length 82 [2024-11-23 23:03:36,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:36,754 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1117 transitions. [2024-11-23 23:03:36,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-23 23:03:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1117 transitions. [2024-11-23 23:03:36,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 23:03:36,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:36,756 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:36,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-23 23:03:36,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-23 23:03:36,960 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:36,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:36,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1759819271, now seen corresponding path program 1 times [2024-11-23 23:03:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:36,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905578554] [2024-11-23 23:03:36,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:36,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905578554] [2024-11-23 23:03:37,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905578554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:37,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515588438] [2024-11-23 23:03:37,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:37,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:37,128 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:37,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-23 23:03:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:37,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:03:37,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:37,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:37,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515588438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:37,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:03:37,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-23 23:03:37,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337845247] [2024-11-23 23:03:37,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:37,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:03:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:37,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:03:37,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:03:37,668 INFO L87 Difference]: Start difference. First operand 800 states and 1117 transitions. Second operand has 11 states, 10 states have (on average 15.7) internal successors, (157), 11 states have internal predecessors, (157), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 23:03:38,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:38,538 INFO L93 Difference]: Finished difference Result 958 states and 1285 transitions. [2024-11-23 23:03:38,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:03:38,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.7) internal successors, (157), 11 states have internal predecessors, (157), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 91 [2024-11-23 23:03:38,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:38,543 INFO L225 Difference]: With dead ends: 958 [2024-11-23 23:03:38,543 INFO L226 Difference]: Without dead ends: 957 [2024-11-23 23:03:38,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:03:38,544 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 755 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:38,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 385 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:03:38,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-11-23 23:03:38,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 842. [2024-11-23 23:03:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 720 states have (on average 1.3944444444444444) internal successors, (1004), 755 states have internal predecessors, (1004), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-23 23:03:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1172 transitions. [2024-11-23 23:03:38,664 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1172 transitions. Word has length 91 [2024-11-23 23:03:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:38,664 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1172 transitions. [2024-11-23 23:03:38,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.7) internal successors, (157), 11 states have internal predecessors, (157), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 23:03:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1172 transitions. [2024-11-23 23:03:38,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 23:03:38,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:38,669 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:38,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-23 23:03:38,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-23 23:03:38,869 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:38,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:38,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1759833173, now seen corresponding path program 1 times [2024-11-23 23:03:38,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:38,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547280302] [2024-11-23 23:03:38,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:38,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:38,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:38,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547280302] [2024-11-23 23:03:38,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547280302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:38,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443827167] [2024-11-23 23:03:38,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:38,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:38,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:38,971 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:38,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-23 23:03:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:39,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:03:39,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:39,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:39,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443827167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:39,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:03:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-11-23 23:03:39,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560043036] [2024-11-23 23:03:39,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:39,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:03:39,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:39,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:03:39,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:03:39,487 INFO L87 Difference]: Start difference. First operand 842 states and 1172 transitions. Second operand has 16 states, 15 states have (on average 10.466666666666667) internal successors, (157), 16 states have internal predecessors, (157), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 23:03:40,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:40,854 INFO L93 Difference]: Finished difference Result 1088 states and 1465 transitions. [2024-11-23 23:03:40,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-23 23:03:40,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.466666666666667) internal successors, (157), 16 states have internal predecessors, (157), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 91 [2024-11-23 23:03:40,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:40,858 INFO L225 Difference]: With dead ends: 1088 [2024-11-23 23:03:40,858 INFO L226 Difference]: Without dead ends: 1087 [2024-11-23 23:03:40,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=677, Invalid=1773, Unknown=0, NotChecked=0, Total=2450 [2024-11-23 23:03:40,859 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 1168 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:40,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 605 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:03:40,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-23 23:03:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 937. [2024-11-23 23:03:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 804 states have (on average 1.4116915422885572) internal successors, (1135), 839 states have internal predecessors, (1135), 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) [2024-11-23 23:03:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1325 transitions. [2024-11-23 23:03:40,942 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1325 transitions. Word has length 91 [2024-11-23 23:03:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:40,943 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1325 transitions. [2024-11-23 23:03:40,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.466666666666667) internal successors, (157), 16 states have internal predecessors, (157), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 23:03:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1325 transitions. [2024-11-23 23:03:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-23 23:03:40,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:40,944 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:40,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-23 23:03:41,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-23 23:03:41,145 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:41,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:41,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1280177557, now seen corresponding path program 1 times [2024-11-23 23:03:41,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:41,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945247365] [2024-11-23 23:03:41,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:41,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:41,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:41,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945247365] [2024-11-23 23:03:41,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945247365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:41,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860972912] [2024-11-23 23:03:41,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:41,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:41,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:41,241 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:41,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-23 23:03:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:41,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:03:41,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:41,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:41,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860972912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:41,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:03:41,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-23 23:03:41,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456846038] [2024-11-23 23:03:41,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:41,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:41,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:41,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:41,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:03:41,707 INFO L87 Difference]: Start difference. First operand 937 states and 1325 transitions. Second operand has 8 states, 7 states have (on average 22.571428571428573) internal successors, (158), 8 states have internal predecessors, (158), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-23 23:03:42,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:42,304 INFO L93 Difference]: Finished difference Result 1396 states and 1981 transitions. [2024-11-23 23:03:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:03:42,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 22.571428571428573) internal successors, (158), 8 states have internal predecessors, (158), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 92 [2024-11-23 23:03:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:42,309 INFO L225 Difference]: With dead ends: 1396 [2024-11-23 23:03:42,309 INFO L226 Difference]: Without dead ends: 1394 [2024-11-23 23:03:42,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:03:42,310 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 243 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:42,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 291 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:03:42,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-23 23:03:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1120. [2024-11-23 23:03:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 969 states have (on average 1.4293085655314757) internal successors, (1385), 1004 states have internal predecessors, (1385), 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) [2024-11-23 23:03:42,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1611 transitions. [2024-11-23 23:03:42,408 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1611 transitions. Word has length 92 [2024-11-23 23:03:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:42,409 INFO L471 AbstractCegarLoop]: Abstraction has 1120 states and 1611 transitions. [2024-11-23 23:03:42,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 22.571428571428573) internal successors, (158), 8 states have internal predecessors, (158), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-23 23:03:42,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1611 transitions. [2024-11-23 23:03:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-23 23:03:42,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:42,410 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:42,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-23 23:03:42,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-23 23:03:42,611 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:42,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:42,611 INFO L85 PathProgramCache]: Analyzing trace with hash 120041545, now seen corresponding path program 1 times [2024-11-23 23:03:42,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:42,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187700718] [2024-11-23 23:03:42,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:42,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:42,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:42,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187700718] [2024-11-23 23:03:42,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187700718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:42,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930471870] [2024-11-23 23:03:42,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:42,710 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:42,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-23 23:03:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:42,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:03:42,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:42,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:43,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930471870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:43,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:03:43,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-23 23:03:43,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302879883] [2024-11-23 23:03:43,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:43,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:43,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:43,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:43,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:03:43,135 INFO L87 Difference]: Start difference. First operand 1120 states and 1611 transitions. Second operand has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-23 23:03:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:43,935 INFO L93 Difference]: Finished difference Result 1691 states and 2434 transitions. [2024-11-23 23:03:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:03:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 94 [2024-11-23 23:03:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:43,940 INFO L225 Difference]: With dead ends: 1691 [2024-11-23 23:03:43,940 INFO L226 Difference]: Without dead ends: 1689 [2024-11-23 23:03:43,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:03:43,941 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 240 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:43,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 367 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:03:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-23 23:03:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1340. [2024-11-23 23:03:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1167 states have (on average 1.4284490145672666) internal successors, (1667), 1202 states have internal predecessors, (1667), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:03:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1937 transitions. [2024-11-23 23:03:44,090 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1937 transitions. Word has length 94 [2024-11-23 23:03:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:44,091 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1937 transitions. [2024-11-23 23:03:44,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-23 23:03:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1937 transitions. [2024-11-23 23:03:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-23 23:03:44,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:44,093 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:44,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:44,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-23 23:03:44,293 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:44,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash 924606430, now seen corresponding path program 1 times [2024-11-23 23:03:44,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:44,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529255203] [2024-11-23 23:03:44,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:44,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:44,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275540918] [2024-11-23 23:03:44,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:44,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:44,316 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:44,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-23 23:03:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:44,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 23:03:44,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-23 23:03:44,963 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:45,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529255203] [2024-11-23 23:03:45,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275540918] [2024-11-23 23:03:45,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275540918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:45,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:45,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-23 23:03:45,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671788246] [2024-11-23 23:03:45,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:45,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:03:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:45,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:03:45,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:03:45,097 INFO L87 Difference]: Start difference. First operand 1340 states and 1937 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-23 23:03:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:46,500 INFO L93 Difference]: Finished difference Result 1417 states and 2035 transitions. [2024-11-23 23:03:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:03:46,501 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 96 [2024-11-23 23:03:46,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:46,504 INFO L225 Difference]: With dead ends: 1417 [2024-11-23 23:03:46,504 INFO L226 Difference]: Without dead ends: 1415 [2024-11-23 23:03:46,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=476, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:03:46,505 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 334 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:46,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 448 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:03:46,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2024-11-23 23:03:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1364. [2024-11-23 23:03:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1188 states have (on average 1.4267676767676767) internal successors, (1695), 1223 states have internal predecessors, (1695), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-23 23:03:46,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 1971 transitions. [2024-11-23 23:03:46,617 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 1971 transitions. Word has length 96 [2024-11-23 23:03:46,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:46,618 INFO L471 AbstractCegarLoop]: Abstraction has 1364 states and 1971 transitions. [2024-11-23 23:03:46,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-23 23:03:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 1971 transitions. [2024-11-23 23:03:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-23 23:03:46,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:46,619 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-23 23:03:46,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-23 23:03:46,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-23 23:03:46,819 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:46,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:46,820 INFO L85 PathProgramCache]: Analyzing trace with hash -2020330110, now seen corresponding path program 2 times [2024-11-23 23:03:46,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:46,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540061212] [2024-11-23 23:03:46,820 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:03:46,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:46,840 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:03:46,841 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:03:46,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952126487] [2024-11-23 23:03:46,842 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:03:46,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:46,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:46,844 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:46,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-23 23:03:46,905 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:03:46,905 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:03:46,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:03:46,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:47,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:47,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540061212] [2024-11-23 23:03:47,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:47,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952126487] [2024-11-23 23:03:47,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952126487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:47,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:47,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-23 23:03:47,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400237454] [2024-11-23 23:03:47,405 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:47,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:03:47,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:47,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:03:47,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:03:47,406 INFO L87 Difference]: Start difference. First operand 1364 states and 1971 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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) [2024-11-23 23:03:48,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:48,155 INFO L93 Difference]: Finished difference Result 1516 states and 2188 transitions. [2024-11-23 23:03:48,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:03:48,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 96 [2024-11-23 23:03:48,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:48,160 INFO L225 Difference]: With dead ends: 1516 [2024-11-23 23:03:48,160 INFO L226 Difference]: Without dead ends: 1512 [2024-11-23 23:03:48,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:03:48,161 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 182 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:48,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 249 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:03:48,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-11-23 23:03:48,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1336. [2024-11-23 23:03:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1167 states have (on average 1.3736075407026564) internal successors, (1603), 1198 states have internal predecessors, (1603), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:03:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1873 transitions. [2024-11-23 23:03:48,253 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1873 transitions. Word has length 96 [2024-11-23 23:03:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:48,254 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1873 transitions. [2024-11-23 23:03:48,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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) [2024-11-23 23:03:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1873 transitions. [2024-11-23 23:03:48,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 23:03:48,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:48,255 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:48,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-23 23:03:48,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-23 23:03:48,455 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:48,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1401971695, now seen corresponding path program 1 times [2024-11-23 23:03:48,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:48,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669800474] [2024-11-23 23:03:48,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:48,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:48,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693174928] [2024-11-23 23:03:48,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:48,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:48,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:48,474 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:48,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-23 23:03:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:48,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 23:03:48,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-23 23:03:49,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:49,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:49,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669800474] [2024-11-23 23:03:49,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:49,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693174928] [2024-11-23 23:03:49,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693174928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:49,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:49,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-23 23:03:49,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399500384] [2024-11-23 23:03:49,426 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:49,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:03:49,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:49,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:03:49,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:03:49,428 INFO L87 Difference]: Start difference. First operand 1336 states and 1873 transitions. Second operand has 13 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-23 23:03:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:50,400 INFO L93 Difference]: Finished difference Result 1395 states and 1945 transitions. [2024-11-23 23:03:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:03:50,401 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 97 [2024-11-23 23:03:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:50,405 INFO L225 Difference]: With dead ends: 1395 [2024-11-23 23:03:50,406 INFO L226 Difference]: Without dead ends: 1393 [2024-11-23 23:03:50,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2024-11-23 23:03:50,407 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 319 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:50,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 307 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:03:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-23 23:03:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1346. [2024-11-23 23:03:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1176 states have (on average 1.3724489795918366) internal successors, (1614), 1207 states have internal predecessors, (1614), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-23 23:03:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1886 transitions. [2024-11-23 23:03:50,516 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1886 transitions. Word has length 97 [2024-11-23 23:03:50,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:50,517 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1886 transitions. [2024-11-23 23:03:50,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-23 23:03:50,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1886 transitions. [2024-11-23 23:03:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-23 23:03:50,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:50,518 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:50,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-23 23:03:50,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-23 23:03:50,718 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:50,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:50,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1794276077, now seen corresponding path program 2 times [2024-11-23 23:03:50,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:50,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953948784] [2024-11-23 23:03:50,719 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:03:50,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:50,733 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:03:50,733 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:03:50,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571275375] [2024-11-23 23:03:50,734 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:03:50,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:50,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:50,738 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:50,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-23 23:03:50,804 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:03:50,804 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:03:50,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:03:50,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:51,244 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:51,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953948784] [2024-11-23 23:03:51,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571275375] [2024-11-23 23:03:51,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571275375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:51,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:03:51,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-23 23:03:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996128191] [2024-11-23 23:03:51,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:51,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:03:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:51,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:03:51,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:03:51,811 INFO L87 Difference]: Start difference. First operand 1346 states and 1886 transitions. Second operand has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 10 states have internal predecessors, (118), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:03:54,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:54,937 INFO L93 Difference]: Finished difference Result 1466 states and 2033 transitions. [2024-11-23 23:03:54,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:03:54,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 10 states have internal predecessors, (118), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 97 [2024-11-23 23:03:54,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:54,943 INFO L225 Difference]: With dead ends: 1466 [2024-11-23 23:03:54,944 INFO L226 Difference]: Without dead ends: 1463 [2024-11-23 23:03:54,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:03:54,945 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 548 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:54,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 414 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-23 23:03:54,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2024-11-23 23:03:55,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1343. [2024-11-23 23:03:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1175 states have (on average 1.3651063829787233) internal successors, (1604), 1205 states have internal predecessors, (1604), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:03:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1874 transitions. [2024-11-23 23:03:55,072 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1874 transitions. Word has length 97 [2024-11-23 23:03:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:55,073 INFO L471 AbstractCegarLoop]: Abstraction has 1343 states and 1874 transitions. [2024-11-23 23:03:55,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 10 states have internal predecessors, (118), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:03:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1874 transitions. [2024-11-23 23:03:55,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:03:55,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:55,074 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:55,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-23 23:03:55,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-23 23:03:55,275 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:55,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:55,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1324933619, now seen corresponding path program 1 times [2024-11-23 23:03:55,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:55,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89773507] [2024-11-23 23:03:55,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:55,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:03:55,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269793512] [2024-11-23 23:03:55,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:55,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:55,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:55,295 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:55,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-23 23:03:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:55,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:03:55,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:55,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:56,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:56,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89773507] [2024-11-23 23:03:56,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:56,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269793512] [2024-11-23 23:03:56,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269793512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:03:56,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:03:56,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-23 23:03:56,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763242163] [2024-11-23 23:03:56,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:56,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:03:56,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:56,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:03:56,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:03:56,058 INFO L87 Difference]: Start difference. First operand 1343 states and 1874 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-23 23:03:56,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:56,664 INFO L93 Difference]: Finished difference Result 1388 states and 1928 transitions. [2024-11-23 23:03:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:03:56,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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 99 [2024-11-23 23:03:56,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:56,669 INFO L225 Difference]: With dead ends: 1388 [2024-11-23 23:03:56,669 INFO L226 Difference]: Without dead ends: 1386 [2024-11-23 23:03:56,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:03:56,670 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 89 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:56,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 254 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:03:56,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2024-11-23 23:03:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1351. [2024-11-23 23:03:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1182 states have (on average 1.3637901861252115) internal successors, (1612), 1212 states have internal predecessors, (1612), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-23 23:03:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1884 transitions. [2024-11-23 23:03:56,837 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1884 transitions. Word has length 99 [2024-11-23 23:03:56,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:56,837 INFO L471 AbstractCegarLoop]: Abstraction has 1351 states and 1884 transitions. [2024-11-23 23:03:56,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 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) [2024-11-23 23:03:56,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1884 transitions. [2024-11-23 23:03:56,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-23 23:03:56,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:56,838 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:56,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-23 23:03:57,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-23 23:03:57,039 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:03:57,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:57,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2017425871, now seen corresponding path program 2 times [2024-11-23 23:03:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:57,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637811594] [2024-11-23 23:03:57,039 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:03:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:57,052 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:03:57,053 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:03:57,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690256055] [2024-11-23 23:03:57,053 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:03:57,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:03:57,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:03:57,056 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:03:57,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-23 23:03:57,113 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:03:57,113 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:03:57,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:03:57,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:03:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:57,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:03:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:03:58,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637811594] [2024-11-23 23:03:58,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:03:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690256055] [2024-11-23 23:03:58,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690256055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:03:58,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:03:58,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-11-23 23:03:58,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907719424] [2024-11-23 23:03:58,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:03:58,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:03:58,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:58,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:03:58,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:03:58,013 INFO L87 Difference]: Start difference. First operand 1351 states and 1884 transitions. Second operand has 9 states, 8 states have (on average 15.25) internal successors, (122), 9 states have internal predecessors, (122), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:04:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:00,937 INFO L93 Difference]: Finished difference Result 1434 states and 1985 transitions. [2024-11-23 23:04:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:04:00,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.25) internal successors, (122), 9 states have internal predecessors, (122), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 99 [2024-11-23 23:04:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:00,943 INFO L225 Difference]: With dead ends: 1434 [2024-11-23 23:04:00,943 INFO L226 Difference]: Without dead ends: 1432 [2024-11-23 23:04:00,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:04:00,944 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 332 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:00,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 352 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 23:04:00,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-23 23:04:01,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1344. [2024-11-23 23:04:01,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1177 states have (on average 1.3593882752761257) internal successors, (1600), 1206 states have internal predecessors, (1600), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:04:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1870 transitions. [2024-11-23 23:04:01,085 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1870 transitions. Word has length 99 [2024-11-23 23:04:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:01,086 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 1870 transitions. [2024-11-23 23:04:01,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.25) internal successors, (122), 9 states have internal predecessors, (122), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:04:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1870 transitions. [2024-11-23 23:04:01,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-23 23:04:01,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:01,087 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:01,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:01,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-23 23:04:01,287 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:01,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1876730718, now seen corresponding path program 1 times [2024-11-23 23:04:01,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:01,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723922025] [2024-11-23 23:04:01,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:01,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:04:01,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037689141] [2024-11-23 23:04:01,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:01,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:01,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:01,313 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:01,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-23 23:04:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:01,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 23:04:01,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:04:01,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-23 23:04:02,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723922025] [2024-11-23 23:04:02,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:02,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037689141] [2024-11-23 23:04:02,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037689141] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:02,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:02,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-23 23:04:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322803894] [2024-11-23 23:04:02,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:02,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:04:02,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:02,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:04:02,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:04:02,182 INFO L87 Difference]: Start difference. First operand 1344 states and 1870 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:04:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:02,825 INFO L93 Difference]: Finished difference Result 1344 states and 1870 transitions. [2024-11-23 23:04:02,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:04:02,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 100 [2024-11-23 23:04:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:02,829 INFO L225 Difference]: With dead ends: 1344 [2024-11-23 23:04:02,829 INFO L226 Difference]: Without dead ends: 1343 [2024-11-23 23:04:02,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:04:02,831 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 82 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:02,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 112 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:04:02,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2024-11-23 23:04:03,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1343. [2024-11-23 23:04:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1177 states have (on average 1.334749362786746) internal successors, (1571), 1205 states have internal predecessors, (1571), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:04:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1841 transitions. [2024-11-23 23:04:03,013 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1841 transitions. Word has length 100 [2024-11-23 23:04:03,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:03,014 INFO L471 AbstractCegarLoop]: Abstraction has 1343 states and 1841 transitions. [2024-11-23 23:04:03,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:04:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1841 transitions. [2024-11-23 23:04:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:04:03,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:03,015 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 23:04:03,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:03,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-23 23:04:03,219 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:03,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:03,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1950889941, now seen corresponding path program 1 times [2024-11-23 23:04:03,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:03,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891990323] [2024-11-23 23:04:03,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:03,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:04:03,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628849244] [2024-11-23 23:04:03,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:03,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:03,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:03,238 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:03,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-23 23:04:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:03,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 23:04:03,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 23:04:03,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-23 23:04:04,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:04,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891990323] [2024-11-23 23:04:04,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:04,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628849244] [2024-11-23 23:04:04,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628849244] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:04,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:04,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-23 23:04:04,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498609750] [2024-11-23 23:04:04,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:04,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:04:04,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:04,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:04:04,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:04:04,187 INFO L87 Difference]: Start difference. First operand 1343 states and 1841 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:04:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:05,687 INFO L93 Difference]: Finished difference Result 1343 states and 1841 transitions. [2024-11-23 23:04:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:04:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-23 23:04:05,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:05,692 INFO L225 Difference]: With dead ends: 1343 [2024-11-23 23:04:05,692 INFO L226 Difference]: Without dead ends: 1340 [2024-11-23 23:04:05,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:04:05,693 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 82 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:05,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 112 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:04:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-23 23:04:05,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2024-11-23 23:04:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1177 states have (on average 1.3050127442650807) internal successors, (1536), 1202 states have internal predecessors, (1536), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:04:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1806 transitions. [2024-11-23 23:04:05,854 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1806 transitions. Word has length 101 [2024-11-23 23:04:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:05,854 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1806 transitions. [2024-11-23 23:04:05,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:04:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1806 transitions. [2024-11-23 23:04:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-23 23:04:05,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:05,856 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 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] [2024-11-23 23:04:05,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-23 23:04:06,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:06,060 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:06,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1219111392, now seen corresponding path program 1 times [2024-11-23 23:04:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:06,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778492470] [2024-11-23 23:04:06,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 23:04:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:06,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778492470] [2024-11-23 23:04:06,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778492470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:06,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111615770] [2024-11-23 23:04:06,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:06,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:06,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:06,223 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:06,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-23 23:04:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:06,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:04:06,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 23:04:06,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:06,497 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-23 23:04:06,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111615770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:06,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:04:06,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-23 23:04:06,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357952364] [2024-11-23 23:04:06,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:06,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:04:06,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:06,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:04:06,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:04:06,499 INFO L87 Difference]: Start difference. First operand 1340 states and 1806 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-23 23:04:07,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:07,240 INFO L93 Difference]: Finished difference Result 1342 states and 1808 transitions. [2024-11-23 23:04:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:04:07,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 102 [2024-11-23 23:04:07,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:07,244 INFO L225 Difference]: With dead ends: 1342 [2024-11-23 23:04:07,244 INFO L226 Difference]: Without dead ends: 1341 [2024-11-23 23:04:07,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:04:07,245 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 85 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:07,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 114 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:04:07,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-23 23:04:07,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1339. [2024-11-23 23:04:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1177 states have (on average 1.3016142735768903) internal successors, (1532), 1201 states have internal predecessors, (1532), 135 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2024-11-23 23:04:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1802 transitions. [2024-11-23 23:04:07,383 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1802 transitions. Word has length 102 [2024-11-23 23:04:07,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:07,384 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1802 transitions. [2024-11-23 23:04:07,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-23 23:04:07,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1802 transitions. [2024-11-23 23:04:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-23 23:04:07,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:07,385 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 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] [2024-11-23 23:04:07,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:07,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:07,586 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:07,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash 862252653, now seen corresponding path program 1 times [2024-11-23 23:04:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:07,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261213143] [2024-11-23 23:04:07,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:07,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:07,687 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-23 23:04:07,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:07,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261213143] [2024-11-23 23:04:07,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261213143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:07,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:07,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:04:07,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378074014] [2024-11-23 23:04:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:07,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:04:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:07,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:04:07,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:04:07,689 INFO L87 Difference]: Start difference. First operand 1339 states and 1802 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:04:08,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:08,649 INFO L93 Difference]: Finished difference Result 1364 states and 1823 transitions. [2024-11-23 23:04:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:04:08,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 103 [2024-11-23 23:04:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:08,653 INFO L225 Difference]: With dead ends: 1364 [2024-11-23 23:04:08,653 INFO L226 Difference]: Without dead ends: 1363 [2024-11-23 23:04:08,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:04:08,654 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 149 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:08,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 173 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:04:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-23 23:04:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1327. [2024-11-23 23:04:08,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1167 states have (on average 1.300771208226221) internal successors, (1518), 1190 states have internal predecessors, (1518), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-11-23 23:04:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1786 transitions. [2024-11-23 23:04:08,768 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1786 transitions. Word has length 103 [2024-11-23 23:04:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:08,768 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 1786 transitions. [2024-11-23 23:04:08,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:04:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1786 transitions. [2024-11-23 23:04:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-23 23:04:08,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:08,769 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-23 23:04:08,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-23 23:04:08,769 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:08,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1054600481, now seen corresponding path program 2 times [2024-11-23 23:04:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:08,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525512513] [2024-11-23 23:04:08,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:04:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:08,789 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:04:08,790 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789486593] [2024-11-23 23:04:08,791 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:04:08,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:08,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:08,793 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:08,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-23 23:04:08,858 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:04:08,858 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:08,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:04:08,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-23 23:04:09,222 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:09,439 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-23 23:04:09,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:09,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525512513] [2024-11-23 23:04:09,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:09,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789486593] [2024-11-23 23:04:09,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789486593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:09,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:04:09,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-23 23:04:09,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953718890] [2024-11-23 23:04:09,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:09,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:04:09,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:09,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:04:09,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:04:09,441 INFO L87 Difference]: Start difference. First operand 1327 states and 1786 transitions. Second operand has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-23 23:04:11,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:11,165 INFO L93 Difference]: Finished difference Result 2076 states and 2720 transitions. [2024-11-23 23:04:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:04:11,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 107 [2024-11-23 23:04:11,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:11,169 INFO L225 Difference]: With dead ends: 2076 [2024-11-23 23:04:11,169 INFO L226 Difference]: Without dead ends: 2072 [2024-11-23 23:04:11,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:04:11,170 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1402 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:11,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 547 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:04:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2024-11-23 23:04:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1424. [2024-11-23 23:04:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1257 states have (on average 1.2840095465393795) internal successors, (1614), 1279 states have internal predecessors, (1614), 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) [2024-11-23 23:04:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1898 transitions. [2024-11-23 23:04:11,313 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1898 transitions. Word has length 107 [2024-11-23 23:04:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:11,313 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 1898 transitions. [2024-11-23 23:04:11,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 8 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-23 23:04:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1898 transitions. [2024-11-23 23:04:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-23 23:04:11,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:11,314 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:11,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-23 23:04:11,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-23 23:04:11,516 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:11,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1678177013, now seen corresponding path program 1 times [2024-11-23 23:04:11,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:11,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580679160] [2024-11-23 23:04:11,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:11,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:04:11,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21981925] [2024-11-23 23:04:11,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:11,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:11,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:11,535 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:11,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-23 23:04:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:11,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 23:04:11,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-23 23:04:12,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:12,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:12,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580679160] [2024-11-23 23:04:12,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:12,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21981925] [2024-11-23 23:04:12,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21981925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:12,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:12,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-23 23:04:12,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143673596] [2024-11-23 23:04:12,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:12,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:04:12,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:12,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:04:12,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:04:12,556 INFO L87 Difference]: Start difference. First operand 1424 states and 1898 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:04:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:13,556 INFO L93 Difference]: Finished difference Result 1552 states and 2055 transitions. [2024-11-23 23:04:13,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:04:13,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 110 [2024-11-23 23:04:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:13,561 INFO L225 Difference]: With dead ends: 1552 [2024-11-23 23:04:13,561 INFO L226 Difference]: Without dead ends: 1550 [2024-11-23 23:04:13,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:04:13,562 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 168 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:13,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 375 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:04:13,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2024-11-23 23:04:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1429. [2024-11-23 23:04:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1261 states have (on average 1.28152260111023) internal successors, (1616), 1283 states have internal predecessors, (1616), 143 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-11-23 23:04:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1902 transitions. [2024-11-23 23:04:13,699 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1902 transitions. Word has length 110 [2024-11-23 23:04:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:13,699 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1902 transitions. [2024-11-23 23:04:13,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:04:13,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1902 transitions. [2024-11-23 23:04:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-23 23:04:13,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:13,701 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:13,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:13,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-23 23:04:13,901 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:13,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:13,902 INFO L85 PathProgramCache]: Analyzing trace with hash -483879785, now seen corresponding path program 1 times [2024-11-23 23:04:13,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:13,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627128208] [2024-11-23 23:04:13,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:04:13,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777375734] [2024-11-23 23:04:13,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:13,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:13,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:13,918 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:13,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-23 23:04:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:13,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-23 23:04:13,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:14,782 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 15 proven. 50 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-23 23:04:14,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:15,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:15,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627128208] [2024-11-23 23:04:15,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777375734] [2024-11-23 23:04:15,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777375734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:15,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:15,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:04:15,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935192879] [2024-11-23 23:04:15,007 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:15,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:04:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:15,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:04:15,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:04:15,008 INFO L87 Difference]: Start difference. First operand 1429 states and 1902 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:04:16,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:16,404 INFO L93 Difference]: Finished difference Result 1551 states and 2052 transitions. [2024-11-23 23:04:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:04:16,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 111 [2024-11-23 23:04:16,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:16,409 INFO L225 Difference]: With dead ends: 1551 [2024-11-23 23:04:16,410 INFO L226 Difference]: Without dead ends: 1519 [2024-11-23 23:04:16,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:04:16,411 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 113 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:16,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 330 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:04:16,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-11-23 23:04:16,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1429. [2024-11-23 23:04:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1261 states have (on average 1.2799365582870736) internal successors, (1614), 1283 states have internal predecessors, (1614), 143 states have call successors, (143), 2 states have call predecessors, (143), 2 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2024-11-23 23:04:16,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1900 transitions. [2024-11-23 23:04:16,596 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1900 transitions. Word has length 111 [2024-11-23 23:04:16,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:16,596 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1900 transitions. [2024-11-23 23:04:16,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 11 states have internal predecessors, (75), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:04:16,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1900 transitions. [2024-11-23 23:04:16,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-23 23:04:16,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:16,598 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-23 23:04:16,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-23 23:04:16,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-23 23:04:16,802 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:16,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1661694662, now seen corresponding path program 2 times [2024-11-23 23:04:16,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:16,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141492031] [2024-11-23 23:04:16,803 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:04:16,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:16,820 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:04:16,820 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:16,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198179107] [2024-11-23 23:04:16,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:04:16,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:16,823 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:16,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-23 23:04:16,894 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:04:16,894 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:16,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 23:04:16,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 6 proven. 77 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-23 23:04:17,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:17,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:17,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141492031] [2024-11-23 23:04:17,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:17,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198179107] [2024-11-23 23:04:17,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198179107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:17,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:17,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:04:17,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761416032] [2024-11-23 23:04:17,760 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:17,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:04:17,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:17,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:04:17,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:04:17,761 INFO L87 Difference]: Start difference. First operand 1429 states and 1900 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-23 23:04:18,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:18,597 INFO L93 Difference]: Finished difference Result 1724 states and 2276 transitions. [2024-11-23 23:04:18,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 23:04:18,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 118 [2024-11-23 23:04:18,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:18,601 INFO L225 Difference]: With dead ends: 1724 [2024-11-23 23:04:18,601 INFO L226 Difference]: Without dead ends: 1691 [2024-11-23 23:04:18,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:04:18,602 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 324 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:18,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 247 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:04:18,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2024-11-23 23:04:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1579. [2024-11-23 23:04:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1397 states have (on average 1.2827487473156765) internal successors, (1792), 1419 states have internal predecessors, (1792), 157 states have call successors, (157), 2 states have call predecessors, (157), 2 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-23 23:04:18,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2106 transitions. [2024-11-23 23:04:18,861 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2106 transitions. Word has length 118 [2024-11-23 23:04:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:18,862 INFO L471 AbstractCegarLoop]: Abstraction has 1579 states and 2106 transitions. [2024-11-23 23:04:18,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 5 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-23 23:04:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2106 transitions. [2024-11-23 23:04:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:04:18,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:18,864 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-23 23:04:18,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-23 23:04:19,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-23 23:04:19,068 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:19,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:19,068 INFO L85 PathProgramCache]: Analyzing trace with hash 859146355, now seen corresponding path program 1 times [2024-11-23 23:04:19,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:19,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423392313] [2024-11-23 23:04:19,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:19,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:04:19,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209808819] [2024-11-23 23:04:19,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:19,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:19,088 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:19,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-23 23:04:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:19,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:04:19,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 23:04:19,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:20,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:20,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423392313] [2024-11-23 23:04:20,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:20,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209808819] [2024-11-23 23:04:20,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209808819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:20,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:20,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-23 23:04:20,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957093817] [2024-11-23 23:04:20,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:20,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:04:20,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:20,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:04:20,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:04:20,110 INFO L87 Difference]: Start difference. First operand 1579 states and 2106 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 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) [2024-11-23 23:04:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:20,898 INFO L93 Difference]: Finished difference Result 1662 states and 2209 transitions. [2024-11-23 23:04:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:04:20,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 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 121 [2024-11-23 23:04:20,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:20,903 INFO L225 Difference]: With dead ends: 1662 [2024-11-23 23:04:20,903 INFO L226 Difference]: Without dead ends: 1660 [2024-11-23 23:04:20,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:04:20,904 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 135 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:20,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 426 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:04:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-23 23:04:21,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1608. [2024-11-23 23:04:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1423 states have (on average 1.2832044975404076) internal successors, (1826), 1445 states have internal predecessors, (1826), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-23 23:04:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2146 transitions. [2024-11-23 23:04:21,160 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2146 transitions. Word has length 121 [2024-11-23 23:04:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:21,161 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2146 transitions. [2024-11-23 23:04:21,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 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) [2024-11-23 23:04:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2146 transitions. [2024-11-23 23:04:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-23 23:04:21,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:21,162 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-11-23 23:04:21,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-23 23:04:21,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:21,363 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:21,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:21,364 INFO L85 PathProgramCache]: Analyzing trace with hash 863733308, now seen corresponding path program 1 times [2024-11-23 23:04:21,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:21,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952974813] [2024-11-23 23:04:21,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:21,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:04:21,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709734219] [2024-11-23 23:04:21,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:21,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:21,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:21,398 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:21,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-23 23:04:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:21,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 23:04:21,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:22,078 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-23 23:04:22,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:22,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:22,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952974813] [2024-11-23 23:04:22,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:22,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709734219] [2024-11-23 23:04:22,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709734219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:22,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:22,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-23 23:04:22,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082835095] [2024-11-23 23:04:22,151 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:22,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 23:04:22,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:22,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 23:04:22,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:04:22,152 INFO L87 Difference]: Start difference. First operand 1608 states and 2146 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 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) [2024-11-23 23:04:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:23,461 INFO L93 Difference]: Finished difference Result 1969 states and 2625 transitions. [2024-11-23 23:04:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:04:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 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 122 [2024-11-23 23:04:23,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:23,467 INFO L225 Difference]: With dead ends: 1969 [2024-11-23 23:04:23,467 INFO L226 Difference]: Without dead ends: 1965 [2024-11-23 23:04:23,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:04:23,469 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 298 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:23,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 395 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:04:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-23 23:04:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1765. [2024-11-23 23:04:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1562 states have (on average 1.2810499359795136) internal successors, (2001), 1584 states have internal predecessors, (2001), 178 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-23 23:04:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2357 transitions. [2024-11-23 23:04:23,703 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2357 transitions. Word has length 122 [2024-11-23 23:04:23,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:23,703 INFO L471 AbstractCegarLoop]: Abstraction has 1765 states and 2357 transitions. [2024-11-23 23:04:23,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 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) [2024-11-23 23:04:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2357 transitions. [2024-11-23 23:04:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-23 23:04:23,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:23,705 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 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] [2024-11-23 23:04:23,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-23 23:04:23,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:23,905 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:23,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:23,906 INFO L85 PathProgramCache]: Analyzing trace with hash -447702832, now seen corresponding path program 1 times [2024-11-23 23:04:23,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:23,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099376947] [2024-11-23 23:04:23,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:24,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:24,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099376947] [2024-11-23 23:04:24,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099376947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:24,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904642795] [2024-11-23 23:04:24,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:24,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:24,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:24,045 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:24,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-23 23:04:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:24,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:04:24,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:24,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:24,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904642795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:24,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:04:24,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-23 23:04:24,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846328322] [2024-11-23 23:04:24,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:24,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:04:24,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:24,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:04:24,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:04:24,651 INFO L87 Difference]: Start difference. First operand 1765 states and 2357 transitions. Second operand has 15 states, 14 states have (on average 15.285714285714286) internal successors, (214), 15 states have internal predecessors, (214), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-23 23:04:25,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:25,943 INFO L93 Difference]: Finished difference Result 2248 states and 2992 transitions. [2024-11-23 23:04:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-23 23:04:25,947 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 15.285714285714286) internal successors, (214), 15 states have internal predecessors, (214), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 132 [2024-11-23 23:04:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:25,954 INFO L225 Difference]: With dead ends: 2248 [2024-11-23 23:04:25,954 INFO L226 Difference]: Without dead ends: 2247 [2024-11-23 23:04:25,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 23:04:25,956 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 750 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:25,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 823 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:04:25,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2024-11-23 23:04:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2006. [2024-11-23 23:04:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 1778 states have (on average 1.2890888638920135) internal successors, (2292), 1800 states have internal predecessors, (2292), 203 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-23 23:04:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2698 transitions. [2024-11-23 23:04:26,397 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2698 transitions. Word has length 132 [2024-11-23 23:04:26,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:26,397 INFO L471 AbstractCegarLoop]: Abstraction has 2006 states and 2698 transitions. [2024-11-23 23:04:26,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 15.285714285714286) internal successors, (214), 15 states have internal predecessors, (214), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-23 23:04:26,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2698 transitions. [2024-11-23 23:04:26,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-23 23:04:26,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:26,400 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 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] [2024-11-23 23:04:26,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:26,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:26,601 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:26,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:26,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1354538564, now seen corresponding path program 1 times [2024-11-23 23:04:26,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:26,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726770750] [2024-11-23 23:04:26,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:26,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:26,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:26,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726770750] [2024-11-23 23:04:26,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726770750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:26,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380946126] [2024-11-23 23:04:26,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:26,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:26,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:26,774 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:26,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-23 23:04:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:26,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:04:26,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:27,323 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:27,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380946126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:27,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:04:27,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-23 23:04:27,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522014561] [2024-11-23 23:04:27,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:27,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:04:27,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:27,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:04:27,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:04:27,640 INFO L87 Difference]: Start difference. First operand 2006 states and 2698 transitions. Second operand has 11 states, 10 states have (on average 23.9) internal successors, (239), 11 states have internal predecessors, (239), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-23 23:04:29,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:29,088 INFO L93 Difference]: Finished difference Result 2845 states and 3772 transitions. [2024-11-23 23:04:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:04:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 23.9) internal successors, (239), 11 states have internal predecessors, (239), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 134 [2024-11-23 23:04:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:29,095 INFO L225 Difference]: With dead ends: 2845 [2024-11-23 23:04:29,095 INFO L226 Difference]: Without dead ends: 2843 [2024-11-23 23:04:29,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:04:29,097 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 296 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:29,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 542 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:04:29,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-23 23:04:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2378. [2024-11-23 23:04:29,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2116 states have (on average 1.2878071833648392) internal successors, (2725), 2138 states have internal predecessors, (2725), 237 states have call successors, (237), 2 states have call predecessors, (237), 2 states have return successors, (237), 237 states have call predecessors, (237), 237 states have call successors, (237) [2024-11-23 23:04:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3199 transitions. [2024-11-23 23:04:29,600 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3199 transitions. Word has length 134 [2024-11-23 23:04:29,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:29,600 INFO L471 AbstractCegarLoop]: Abstraction has 2378 states and 3199 transitions. [2024-11-23 23:04:29,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 23.9) internal successors, (239), 11 states have internal predecessors, (239), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-23 23:04:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3199 transitions. [2024-11-23 23:04:29,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-23 23:04:29,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:29,602 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 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] [2024-11-23 23:04:29,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:29,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:29,803 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:29,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash 652960852, now seen corresponding path program 1 times [2024-11-23 23:04:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:29,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802570088] [2024-11-23 23:04:29,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:29,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:29,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802570088] [2024-11-23 23:04:29,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802570088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:29,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863195843] [2024-11-23 23:04:29,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:29,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:29,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:29,973 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:29,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-23 23:04:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:30,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:04:30,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:30,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:30,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863195843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:04:30,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:04:30,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-23 23:04:30,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492561484] [2024-11-23 23:04:30,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:30,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:04:30,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:30,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:04:30,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:04:30,775 INFO L87 Difference]: Start difference. First operand 2378 states and 3199 transitions. Second operand has 11 states, 10 states have (on average 24.5) internal successors, (245), 11 states have internal predecessors, (245), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-23 23:04:32,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:32,296 INFO L93 Difference]: Finished difference Result 3334 states and 4418 transitions. [2024-11-23 23:04:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:04:32,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.5) internal successors, (245), 11 states have internal predecessors, (245), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 136 [2024-11-23 23:04:32,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:32,302 INFO L225 Difference]: With dead ends: 3334 [2024-11-23 23:04:32,302 INFO L226 Difference]: Without dead ends: 3332 [2024-11-23 23:04:32,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:04:32,304 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 526 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:32,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 457 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:04:32,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2024-11-23 23:04:32,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2746. [2024-11-23 23:04:32,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 2452 states have (on average 1.2899673735725938) internal successors, (3163), 2474 states have internal predecessors, (3163), 269 states have call successors, (269), 2 states have call predecessors, (269), 2 states have return successors, (269), 269 states have call predecessors, (269), 269 states have call successors, (269) [2024-11-23 23:04:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3701 transitions. [2024-11-23 23:04:32,836 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3701 transitions. Word has length 136 [2024-11-23 23:04:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:32,836 INFO L471 AbstractCegarLoop]: Abstraction has 2746 states and 3701 transitions. [2024-11-23 23:04:32,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.5) internal successors, (245), 11 states have internal predecessors, (245), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-11-23 23:04:32,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3701 transitions. [2024-11-23 23:04:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 23:04:32,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:32,838 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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] [2024-11-23 23:04:32,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-23 23:04:33,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:33,039 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:33,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1079524726, now seen corresponding path program 3 times [2024-11-23 23:04:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969996233] [2024-11-23 23:04:33,040 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:04:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:33,095 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:04:33,095 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:33,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720957707] [2024-11-23 23:04:33,096 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:04:33,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:33,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:33,103 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:33,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-23 23:04:33,197 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 23:04:33,197 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:33,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:04:33,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-23 23:04:33,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:35,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:35,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969996233] [2024-11-23 23:04:35,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:35,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720957707] [2024-11-23 23:04:35,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720957707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:35,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:35,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-23 23:04:35,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610490857] [2024-11-23 23:04:35,708 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:35,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:04:35,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:35,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:04:35,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2024-11-23 23:04:35,709 INFO L87 Difference]: Start difference. First operand 2746 states and 3701 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-23 23:04:36,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:36,391 INFO L93 Difference]: Finished difference Result 2844 states and 3814 transitions. [2024-11-23 23:04:36,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:04:36,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 138 [2024-11-23 23:04:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:36,395 INFO L225 Difference]: With dead ends: 2844 [2024-11-23 23:04:36,395 INFO L226 Difference]: Without dead ends: 2843 [2024-11-23 23:04:36,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=24, Invalid=31, Unknown=1, NotChecked=0, Total=56 [2024-11-23 23:04:36,396 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 159 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:36,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 199 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:04:36,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-23 23:04:36,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2775. [2024-11-23 23:04:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2478 states have (on average 1.2861178369652946) internal successors, (3187), 2500 states have internal predecessors, (3187), 272 states have call successors, (272), 2 states have call predecessors, (272), 2 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-23 23:04:36,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3731 transitions. [2024-11-23 23:04:36,912 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3731 transitions. Word has length 138 [2024-11-23 23:04:36,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:36,912 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 3731 transitions. [2024-11-23 23:04:36,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-23 23:04:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3731 transitions. [2024-11-23 23:04:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-23 23:04:36,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:36,914 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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] [2024-11-23 23:04:36,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-23 23:04:37,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-23 23:04:37,133 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:37,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:37,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1528874522, now seen corresponding path program 4 times [2024-11-23 23:04:37,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:37,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623633531] [2024-11-23 23:04:37,134 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:04:37,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:37,166 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:04:37,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:37,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752948158] [2024-11-23 23:04:37,170 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:04:37,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:37,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:37,173 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-23 23:04:37,258 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:04:37,259 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:37,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-23 23:04:37,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:37,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:38,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623633531] [2024-11-23 23:04:38,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752948158] [2024-11-23 23:04:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752948158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:38,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:38,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-23 23:04:38,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447301870] [2024-11-23 23:04:38,553 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:38,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:04:38,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:38,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:04:38,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:04:38,554 INFO L87 Difference]: Start difference. First operand 2775 states and 3731 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 23:04:39,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:39,787 INFO L93 Difference]: Finished difference Result 2859 states and 3828 transitions. [2024-11-23 23:04:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:04:39,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 138 [2024-11-23 23:04:39,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:39,793 INFO L225 Difference]: With dead ends: 2859 [2024-11-23 23:04:39,793 INFO L226 Difference]: Without dead ends: 2858 [2024-11-23 23:04:39,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:04:39,795 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 99 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:39,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 417 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:04:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2024-11-23 23:04:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2775. [2024-11-23 23:04:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2478 states have (on average 1.2857142857142858) internal successors, (3186), 2500 states have internal predecessors, (3186), 272 states have call successors, (272), 2 states have call predecessors, (272), 2 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-23 23:04:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3730 transitions. [2024-11-23 23:04:40,380 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3730 transitions. Word has length 138 [2024-11-23 23:04:40,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:40,380 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 3730 transitions. [2024-11-23 23:04:40,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 23:04:40,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3730 transitions. [2024-11-23 23:04:40,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:04:40,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:40,382 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-23 23:04:40,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-23 23:04:40,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-23 23:04:40,583 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:40,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:40,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1446182390, now seen corresponding path program 3 times [2024-11-23 23:04:40,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:40,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833511292] [2024-11-23 23:04:40,584 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:04:40,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:40,613 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:04:40,613 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62023] [2024-11-23 23:04:40,615 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:04:40,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:40,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:40,617 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:40,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-23 23:04:40,719 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 23:04:40,720 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:40,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:04:40,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-23 23:04:41,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:41,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833511292] [2024-11-23 23:04:41,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62023] [2024-11-23 23:04:41,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:41,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:41,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-23 23:04:41,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085340998] [2024-11-23 23:04:41,695 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:41,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:04:41,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:41,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:04:41,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:04:41,696 INFO L87 Difference]: Start difference. First operand 2775 states and 3730 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:04:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:42,691 INFO L93 Difference]: Finished difference Result 2822 states and 3781 transitions. [2024-11-23 23:04:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:04:42,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 140 [2024-11-23 23:04:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:42,695 INFO L225 Difference]: With dead ends: 2822 [2024-11-23 23:04:42,695 INFO L226 Difference]: Without dead ends: 2821 [2024-11-23 23:04:42,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:04:42,696 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 111 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:42,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 236 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:04:42,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-11-23 23:04:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2775. [2024-11-23 23:04:42,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2478 states have (on average 1.284907183212268) internal successors, (3184), 2500 states have internal predecessors, (3184), 272 states have call successors, (272), 2 states have call predecessors, (272), 2 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-23 23:04:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3728 transitions. [2024-11-23 23:04:42,975 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3728 transitions. Word has length 140 [2024-11-23 23:04:42,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:42,975 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 3728 transitions. [2024-11-23 23:04:42,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:04:42,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3728 transitions. [2024-11-23 23:04:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:04:42,977 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:42,977 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-23 23:04:42,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:43,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-23 23:04:43,178 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:43,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -753690138, now seen corresponding path program 4 times [2024-11-23 23:04:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094087464] [2024-11-23 23:04:43,179 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:04:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:43,202 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:04:43,202 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:43,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075628311] [2024-11-23 23:04:43,203 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:04:43,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:43,205 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:43,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-23 23:04:43,286 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:04:43,286 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:43,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-23 23:04:43,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:44,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:47,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:47,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094087464] [2024-11-23 23:04:47,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:47,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075628311] [2024-11-23 23:04:47,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075628311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:47,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:47,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-23 23:04:47,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499718766] [2024-11-23 23:04:47,975 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:47,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:04:47,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:47,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:04:47,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-11-23 23:04:47,976 INFO L87 Difference]: Start difference. First operand 2775 states and 3728 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 23:04:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:48,855 INFO L93 Difference]: Finished difference Result 2837 states and 3800 transitions. [2024-11-23 23:04:48,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:04:48,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 140 [2024-11-23 23:04:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:48,859 INFO L225 Difference]: With dead ends: 2837 [2024-11-23 23:04:48,859 INFO L226 Difference]: Without dead ends: 2836 [2024-11-23 23:04:48,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2024-11-23 23:04:48,860 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 123 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:48,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 338 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 23:04:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2024-11-23 23:04:49,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 2775. [2024-11-23 23:04:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2478 states have (on average 1.284503631961259) internal successors, (3183), 2500 states have internal predecessors, (3183), 272 states have call successors, (272), 2 states have call predecessors, (272), 2 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-23 23:04:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3727 transitions. [2024-11-23 23:04:49,157 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3727 transitions. Word has length 140 [2024-11-23 23:04:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:49,158 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 3727 transitions. [2024-11-23 23:04:49,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 23:04:49,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3727 transitions. [2024-11-23 23:04:49,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:04:49,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:49,159 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-23 23:04:49,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-23 23:04:49,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:49,364 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:49,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1958822376, now seen corresponding path program 5 times [2024-11-23 23:04:49,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:49,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978913487] [2024-11-23 23:04:49,365 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:04:49,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:49,394 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-23 23:04:49,394 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:49,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412749249] [2024-11-23 23:04:49,395 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:04:49,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:49,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:49,405 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:49,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-23 23:04:50,917 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-11-23 23:04:50,917 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:04:50,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:04:50,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:04:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-23 23:04:51,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:04:55,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:55,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978913487] [2024-11-23 23:04:55,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:04:55,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412749249] [2024-11-23 23:04:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412749249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:04:55,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:04:55,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-23 23:04:55,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418618058] [2024-11-23 23:04:55,357 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:04:55,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:04:55,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:55,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:04:55,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=43, Unknown=1, NotChecked=0, Total=72 [2024-11-23 23:04:55,358 INFO L87 Difference]: Start difference. First operand 2775 states and 3727 transitions. Second operand has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 23:04:56,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:56,367 INFO L93 Difference]: Finished difference Result 2831 states and 3792 transitions. [2024-11-23 23:04:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:04:56,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 140 [2024-11-23 23:04:56,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:56,371 INFO L225 Difference]: With dead ends: 2831 [2024-11-23 23:04:56,371 INFO L226 Difference]: Without dead ends: 2830 [2024-11-23 23:04:56,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=28, Invalid=43, Unknown=1, NotChecked=0, Total=72 [2024-11-23 23:04:56,372 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 93 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:56,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 378 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:04:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2024-11-23 23:04:56,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2775. [2024-11-23 23:04:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2478 states have (on average 1.2841000807102503) internal successors, (3182), 2500 states have internal predecessors, (3182), 272 states have call successors, (272), 2 states have call predecessors, (272), 2 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-23 23:04:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 3726 transitions. [2024-11-23 23:04:56,698 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 3726 transitions. Word has length 140 [2024-11-23 23:04:56,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:56,699 INFO L471 AbstractCegarLoop]: Abstraction has 2775 states and 3726 transitions. [2024-11-23 23:04:56,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.166666666666666) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-23 23:04:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 3726 transitions. [2024-11-23 23:04:56,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-23 23:04:56,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:56,700 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-23 23:04:56,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-11-23 23:04:56,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:56,901 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:04:56,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:56,902 INFO L85 PathProgramCache]: Analyzing trace with hash 369601980, now seen corresponding path program 6 times [2024-11-23 23:04:56,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:56,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024823298] [2024-11-23 23:04:56,902 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:04:56,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:56,927 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-23 23:04:56,927 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:04:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1463120694] [2024-11-23 23:04:56,928 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:04:56,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:04:56,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:04:56,932 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:04:56,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-23 23:05:04,999 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-11-23 23:05:04,999 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:05:05,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 23:05:05,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:05:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 18 proven. 70 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-23 23:05:12,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:05:12,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:12,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024823298] [2024-11-23 23:05:12,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:05:12,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463120694] [2024-11-23 23:05:12,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463120694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:05:12,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:05:12,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-23 23:05:12,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323975673] [2024-11-23 23:05:12,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:05:12,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:05:12,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:12,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:05:12,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=234, Unknown=3, NotChecked=0, Total=306 [2024-11-23 23:05:12,859 INFO L87 Difference]: Start difference. First operand 2775 states and 3726 transitions. Second operand has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-23 23:05:15,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:18,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:20,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:23,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:25,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:28,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:31,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:34,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:36,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:38,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:40,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:43,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:46,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:48,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:50,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:05:54,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:02,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:05,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:07,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:09,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:11,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:13,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:15,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:17,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:19,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:21,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:25,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:27,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:30,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:32,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:36,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:37,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:39,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:41,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:43,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:46,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:48,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:06:48,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:48,993 INFO L93 Difference]: Finished difference Result 2921 states and 3889 transitions. [2024-11-23 23:06:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:06:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 140 [2024-11-23 23:06:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:48,996 INFO L225 Difference]: With dead ends: 2921 [2024-11-23 23:06:48,997 INFO L226 Difference]: Without dead ends: 2918 [2024-11-23 23:06:48,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=90, Invalid=327, Unknown=3, NotChecked=0, Total=420 [2024-11-23 23:06:48,997 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 181 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 20 mSolverCounterUnsat, 53 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 53 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:48,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 505 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1666 Invalid, 53 Unknown, 0 Unchecked, 95.6s Time] [2024-11-23 23:06:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2024-11-23 23:06:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2810. [2024-11-23 23:06:49,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2510 states have (on average 1.2792828685258963) internal successors, (3211), 2532 states have internal predecessors, (3211), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2024-11-23 23:06:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3761 transitions. [2024-11-23 23:06:49,507 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3761 transitions. Word has length 140 [2024-11-23 23:06:49,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:49,508 INFO L471 AbstractCegarLoop]: Abstraction has 2810 states and 3761 transitions. [2024-11-23 23:06:49,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-23 23:06:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3761 transitions. [2024-11-23 23:06:49,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 23:06:49,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:49,510 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:06:49,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-23 23:06:49,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:49,727 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:06:49,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash -632895340, now seen corresponding path program 2 times [2024-11-23 23:06:49,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:49,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002593144] [2024-11-23 23:06:49,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:06:49,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:49,747 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:06:49,747 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:06:49,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315059153] [2024-11-23 23:06:49,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:06:49,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:49,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:49,752 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:49,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-23 23:06:49,827 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:06:49,827 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:06:49,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:06:49,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:06:50,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:06:51,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:51,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002593144] [2024-11-23 23:06:51,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:06:51,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315059153] [2024-11-23 23:06:51,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315059153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:06:51,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:06:51,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:06:51,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632391540] [2024-11-23 23:06:51,162 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:06:51,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:06:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:51,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:06:51,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:06:51,163 INFO L87 Difference]: Start difference. First operand 2810 states and 3761 transitions. Second operand has 11 states, 10 states have (on average 9.7) internal successors, (97), 11 states have internal predecessors, (97), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:06:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:52,925 INFO L93 Difference]: Finished difference Result 2913 states and 3889 transitions. [2024-11-23 23:06:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:06:52,926 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 11 states have internal predecessors, (97), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 151 [2024-11-23 23:06:52,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:52,930 INFO L225 Difference]: With dead ends: 2913 [2024-11-23 23:06:52,930 INFO L226 Difference]: Without dead ends: 2911 [2024-11-23 23:06:52,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:06:52,932 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 241 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:52,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 365 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:06:52,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2024-11-23 23:06:53,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2774. [2024-11-23 23:06:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2478 states have (on average 1.2772397094430992) internal successors, (3165), 2500 states have internal predecessors, (3165), 271 states have call successors, (271), 2 states have call predecessors, (271), 2 states have return successors, (271), 271 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-23 23:06:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3707 transitions. [2024-11-23 23:06:53,355 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3707 transitions. Word has length 151 [2024-11-23 23:06:53,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:53,355 INFO L471 AbstractCegarLoop]: Abstraction has 2774 states and 3707 transitions. [2024-11-23 23:06:53,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 11 states have internal predecessors, (97), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:06:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3707 transitions. [2024-11-23 23:06:53,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 23:06:53,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:53,357 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:06:53,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-23 23:06:53,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-23 23:06:53,558 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:06:53,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash 962500550, now seen corresponding path program 3 times [2024-11-23 23:06:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:53,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47172461] [2024-11-23 23:06:53,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:06:53,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:53,586 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:06:53,586 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:06:53,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543002014] [2024-11-23 23:06:53,587 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:06:53,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:53,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:53,592 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:53,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-23 23:06:53,714 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 23:06:53,715 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:06:53,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:06:53,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:06:54,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:06:55,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:55,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47172461] [2024-11-23 23:06:55,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:06:55,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543002014] [2024-11-23 23:06:55,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543002014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:06:55,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:06:55,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:06:55,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297007697] [2024-11-23 23:06:55,304 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:06:55,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:06:55,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:55,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:06:55,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:06:55,306 INFO L87 Difference]: Start difference. First operand 2774 states and 3707 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:06:57,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:06:57,074 INFO L93 Difference]: Finished difference Result 2911 states and 3880 transitions. [2024-11-23 23:06:57,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:06:57,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 151 [2024-11-23 23:06:57,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:06:57,078 INFO L225 Difference]: With dead ends: 2911 [2024-11-23 23:06:57,078 INFO L226 Difference]: Without dead ends: 2909 [2024-11-23 23:06:57,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:06:57,079 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 164 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:06:57,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 645 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:06:57,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2024-11-23 23:06:57,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 2813. [2024-11-23 23:06:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2513 states have (on average 1.2785515320334262) internal successors, (3213), 2535 states have internal predecessors, (3213), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2024-11-23 23:06:57,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3763 transitions. [2024-11-23 23:06:57,423 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3763 transitions. Word has length 151 [2024-11-23 23:06:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:06:57,423 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 3763 transitions. [2024-11-23 23:06:57,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:06:57,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3763 transitions. [2024-11-23 23:06:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-23 23:06:57,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:06:57,425 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:06:57,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-23 23:06:57,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-23 23:06:57,630 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:06:57,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:06:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1757952418, now seen corresponding path program 4 times [2024-11-23 23:06:57,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:06:57,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916118054] [2024-11-23 23:06:57,631 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:06:57,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:06:57,658 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:06:57,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:06:57,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664712174] [2024-11-23 23:06:57,660 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:06:57,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:06:57,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:06:57,664 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:06:57,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-23 23:06:57,785 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:06:57,786 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:06:57,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:06:57,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:06:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-23 23:06:58,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:06:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:06:59,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:06:59,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916118054] [2024-11-23 23:06:59,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:06:59,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664712174] [2024-11-23 23:06:59,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664712174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:06:59,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:06:59,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-11-23 23:06:59,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658069958] [2024-11-23 23:06:59,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:06:59,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:06:59,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:06:59,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:06:59,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:06:59,055 INFO L87 Difference]: Start difference. First operand 2813 states and 3763 transitions. Second operand has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-23 23:07:02,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:02,091 INFO L93 Difference]: Finished difference Result 3711 states and 4884 transitions. [2024-11-23 23:07:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:07:02,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 151 [2024-11-23 23:07:02,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:02,097 INFO L225 Difference]: With dead ends: 3711 [2024-11-23 23:07:02,097 INFO L226 Difference]: Without dead ends: 3709 [2024-11-23 23:07:02,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=217, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:07:02,098 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 1266 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:02,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 589 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-23 23:07:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2024-11-23 23:07:02,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3006. [2024-11-23 23:07:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2693 states have (on average 1.2669884886743408) internal successors, (3412), 2714 states have internal predecessors, (3412), 289 states have call successors, (289), 2 states have call predecessors, (289), 2 states have return successors, (289), 289 states have call predecessors, (289), 289 states have call successors, (289) [2024-11-23 23:07:02,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 3990 transitions. [2024-11-23 23:07:02,643 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 3990 transitions. Word has length 151 [2024-11-23 23:07:02,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:02,643 INFO L471 AbstractCegarLoop]: Abstraction has 3006 states and 3990 transitions. [2024-11-23 23:07:02,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.8) internal successors, (168), 11 states have internal predecessors, (168), 9 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-23 23:07:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 3990 transitions. [2024-11-23 23:07:02,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 23:07:02,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:02,645 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:07:02,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-23 23:07:02,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2024-11-23 23:07:02,846 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:07:02,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:02,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1855081006, now seen corresponding path program 2 times [2024-11-23 23:07:02,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:02,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816124992] [2024-11-23 23:07:02,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:02,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:02,867 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:02,868 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:07:02,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415198698] [2024-11-23 23:07:02,869 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:02,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:02,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:02,871 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:02,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-23 23:07:02,952 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:02,952 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:07:02,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:07:02,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 114 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-23 23:07:04,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:04,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816124992] [2024-11-23 23:07:04,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415198698] [2024-11-23 23:07:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415198698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:04,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:04,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-23 23:07:04,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580911890] [2024-11-23 23:07:04,776 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:04,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 23:07:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:04,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 23:07:04,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:07:04,777 INFO L87 Difference]: Start difference. First operand 3006 states and 3990 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:07:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:07,226 INFO L93 Difference]: Finished difference Result 3115 states and 4124 transitions. [2024-11-23 23:07:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:07:07,226 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 152 [2024-11-23 23:07:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:07,250 INFO L225 Difference]: With dead ends: 3115 [2024-11-23 23:07:07,250 INFO L226 Difference]: Without dead ends: 3083 [2024-11-23 23:07:07,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:07:07,254 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 115 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 2579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:07,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 502 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 23:07:07,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3083 states. [2024-11-23 23:07:08,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3083 to 2986. [2024-11-23 23:07:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2675 states have (on average 1.2680373831775702) internal successors, (3392), 2696 states have internal predecessors, (3392), 287 states have call successors, (287), 2 states have call predecessors, (287), 2 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2024-11-23 23:07:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 3966 transitions. [2024-11-23 23:07:08,111 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 3966 transitions. Word has length 152 [2024-11-23 23:07:08,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:08,111 INFO L471 AbstractCegarLoop]: Abstraction has 2986 states and 3966 transitions. [2024-11-23 23:07:08,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:07:08,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 3966 transitions. [2024-11-23 23:07:08,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 23:07:08,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:08,113 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:07:08,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:08,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-23 23:07:08,315 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:07:08,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:08,316 INFO L85 PathProgramCache]: Analyzing trace with hash -227253956, now seen corresponding path program 3 times [2024-11-23 23:07:08,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:08,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632593213] [2024-11-23 23:07:08,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:07:08,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:08,359 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:07:08,359 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:07:08,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970744964] [2024-11-23 23:07:08,360 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:07:08,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:08,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:08,365 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:08,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-23 23:07:08,464 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 23:07:08,464 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:07:08,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 23:07:08,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 91 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:07:10,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:18,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:18,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632593213] [2024-11-23 23:07:18,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:18,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970744964] [2024-11-23 23:07:18,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970744964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:18,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:18,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:07:18,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006109294] [2024-11-23 23:07:18,929 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:18,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:07:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:18,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:07:18,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=231, Unknown=2, NotChecked=0, Total=272 [2024-11-23 23:07:18,931 INFO L87 Difference]: Start difference. First operand 2986 states and 3966 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:07:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:24,285 INFO L93 Difference]: Finished difference Result 3347 states and 4431 transitions. [2024-11-23 23:07:24,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:07:24,286 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 152 [2024-11-23 23:07:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:24,314 INFO L225 Difference]: With dead ends: 3347 [2024-11-23 23:07:24,314 INFO L226 Difference]: Without dead ends: 3335 [2024-11-23 23:07:24,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=51, Invalid=289, Unknown=2, NotChecked=0, Total=342 [2024-11-23 23:07:24,319 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 142 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:24,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 457 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-23 23:07:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2024-11-23 23:07:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3008. [2024-11-23 23:07:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 2694 states have (on average 1.265404602821084) internal successors, (3409), 2715 states have internal predecessors, (3409), 290 states have call successors, (290), 2 states have call predecessors, (290), 2 states have return successors, (290), 290 states have call predecessors, (290), 290 states have call successors, (290) [2024-11-23 23:07:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 3989 transitions. [2024-11-23 23:07:25,276 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 3989 transitions. Word has length 152 [2024-11-23 23:07:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:25,277 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 3989 transitions. [2024-11-23 23:07:25,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:07:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 3989 transitions. [2024-11-23 23:07:25,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-23 23:07:25,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:25,283 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:07:25,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-23 23:07:25,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-23 23:07:25,485 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:07:25,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 874582510, now seen corresponding path program 2 times [2024-11-23 23:07:25,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:25,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284099228] [2024-11-23 23:07:25,491 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:25,772 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:25,776 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:07:25,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757973651] [2024-11-23 23:07:25,784 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:25,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:25,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:25,794 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:25,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-23 23:07:26,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:26,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:07:26,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-23 23:07:26,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:28,505 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:07:28,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:29,950 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:07:29,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:29,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284099228] [2024-11-23 23:07:29,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757973651] [2024-11-23 23:07:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757973651] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:07:29,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:07:29,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2024-11-23 23:07:29,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058638916] [2024-11-23 23:07:29,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:29,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:07:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:29,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:07:29,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:07:29,953 INFO L87 Difference]: Start difference. First operand 3008 states and 3989 transitions. Second operand has 20 states, 19 states have (on average 9.894736842105264) internal successors, (188), 20 states have internal predecessors, (188), 9 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-23 23:07:37,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:37,745 INFO L93 Difference]: Finished difference Result 3311 states and 4391 transitions. [2024-11-23 23:07:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-23 23:07:37,746 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.894736842105264) internal successors, (188), 20 states have internal predecessors, (188), 9 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 152 [2024-11-23 23:07:37,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:37,783 INFO L225 Difference]: With dead ends: 3311 [2024-11-23 23:07:37,783 INFO L226 Difference]: Without dead ends: 3310 [2024-11-23 23:07:37,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=392, Invalid=1678, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 23:07:37,789 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 532 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 3099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:37,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 464 Invalid, 3099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2980 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-23 23:07:37,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2024-11-23 23:07:38,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 3203. [2024-11-23 23:07:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3203 states, 2870 states have (on average 1.2668989547038327) internal successors, (3636), 2891 states have internal predecessors, (3636), 309 states have call successors, (309), 2 states have call predecessors, (309), 2 states have return successors, (309), 309 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-23 23:07:38,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4254 transitions. [2024-11-23 23:07:38,721 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4254 transitions. Word has length 152 [2024-11-23 23:07:38,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:38,722 INFO L471 AbstractCegarLoop]: Abstraction has 3203 states and 4254 transitions. [2024-11-23 23:07:38,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.894736842105264) internal successors, (188), 20 states have internal predecessors, (188), 9 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2024-11-23 23:07:38,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4254 transitions. [2024-11-23 23:07:38,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:07:38,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:38,724 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:07:38,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:38,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-23 23:07:38,925 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:07:38,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:38,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1672936406, now seen corresponding path program 1 times [2024-11-23 23:07:38,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859240376] [2024-11-23 23:07:38,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:07:39,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841435740] [2024-11-23 23:07:39,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:07:39,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:39,042 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:39,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-23 23:07:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:07:39,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:07:39,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:07:40,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:40,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:40,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859240376] [2024-11-23 23:07:40,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:40,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841435740] [2024-11-23 23:07:40,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841435740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:40,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:40,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:07:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125009051] [2024-11-23 23:07:40,543 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:40,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:07:40,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:40,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:07:40,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:07:40,546 INFO L87 Difference]: Start difference. First operand 3203 states and 4254 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 12 states have internal predecessors, (99), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:07:44,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:44,830 INFO L93 Difference]: Finished difference Result 4621 states and 6171 transitions. [2024-11-23 23:07:44,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 23:07:44,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 12 states have internal predecessors, (99), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 153 [2024-11-23 23:07:44,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:44,849 INFO L225 Difference]: With dead ends: 4621 [2024-11-23 23:07:44,849 INFO L226 Difference]: Without dead ends: 4620 [2024-11-23 23:07:44,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=346, Invalid=1136, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 23:07:44,852 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 903 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:44,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 532 Invalid, 2244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:07:44,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2024-11-23 23:07:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 4001. [2024-11-23 23:07:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3592 states have (on average 1.2842427616926504) internal successors, (4613), 3613 states have internal predecessors, (4613), 385 states have call successors, (385), 2 states have call predecessors, (385), 2 states have return successors, (385), 385 states have call predecessors, (385), 385 states have call successors, (385) [2024-11-23 23:07:45,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 5383 transitions. [2024-11-23 23:07:45,772 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 5383 transitions. Word has length 153 [2024-11-23 23:07:45,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:45,773 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 5383 transitions. [2024-11-23 23:07:45,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 12 states have internal predecessors, (99), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:07:45,773 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 5383 transitions. [2024-11-23 23:07:45,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:07:45,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:45,775 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:07:45,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:45,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-23 23:07:45,976 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:07:45,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1545062024, now seen corresponding path program 2 times [2024-11-23 23:07:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:45,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600600750] [2024-11-23 23:07:45,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:45,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:46,038 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:46,043 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:07:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336186196] [2024-11-23 23:07:46,045 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:07:46,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:46,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:46,054 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:46,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-23 23:07:46,145 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:07:46,145 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:07:46,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:07:46,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-23 23:07:47,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:47,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:47,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600600750] [2024-11-23 23:07:47,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:47,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336186196] [2024-11-23 23:07:47,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336186196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:47,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:47,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:07:47,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528693895] [2024-11-23 23:07:47,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:47,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:07:47,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:47,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:07:47,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:07:47,547 INFO L87 Difference]: Start difference. First operand 4001 states and 5383 transitions. Second operand has 12 states, 11 states have (on average 9.0) internal successors, (99), 12 states have internal predecessors, (99), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:07:51,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:07:51,186 INFO L93 Difference]: Finished difference Result 4971 states and 6675 transitions. [2024-11-23 23:07:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 23:07:51,187 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 12 states have internal predecessors, (99), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 153 [2024-11-23 23:07:51,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:07:51,201 INFO L225 Difference]: With dead ends: 4971 [2024-11-23 23:07:51,201 INFO L226 Difference]: Without dead ends: 4970 [2024-11-23 23:07:51,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190 [2024-11-23 23:07:51,204 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 539 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:07:51,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 552 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-23 23:07:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4970 states. [2024-11-23 23:07:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4970 to 4452. [2024-11-23 23:07:52,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 3998 states have (on average 1.2916458229114558) internal successors, (5164), 4019 states have internal predecessors, (5164), 430 states have call successors, (430), 2 states have call predecessors, (430), 2 states have return successors, (430), 430 states have call predecessors, (430), 430 states have call successors, (430) [2024-11-23 23:07:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 6024 transitions. [2024-11-23 23:07:52,064 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 6024 transitions. Word has length 153 [2024-11-23 23:07:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:07:52,064 INFO L471 AbstractCegarLoop]: Abstraction has 4452 states and 6024 transitions. [2024-11-23 23:07:52,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.0) internal successors, (99), 12 states have internal predecessors, (99), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:07:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 6024 transitions. [2024-11-23 23:07:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:07:52,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:07:52,066 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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] [2024-11-23 23:07:52,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-23 23:07:52,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:52,266 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:07:52,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:07:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1470128484, now seen corresponding path program 3 times [2024-11-23 23:07:52,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:07:52,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606813437] [2024-11-23 23:07:52,267 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:07:52,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:07:52,356 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:07:52,356 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:07:52,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490429591] [2024-11-23 23:07:52,358 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:07:52,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:07:52,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:07:52,360 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:07:52,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-23 23:07:52,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 23:07:52,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:07:52,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 23:07:52,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:07:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 24 proven. 94 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:07:54,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:07:56,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:07:56,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606813437] [2024-11-23 23:07:56,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:07:56,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490429591] [2024-11-23 23:07:56,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490429591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:07:56,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:07:56,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:07:56,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347673627] [2024-11-23 23:07:56,911 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:07:56,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:07:56,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:07:56,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:07:56,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:07:56,912 INFO L87 Difference]: Start difference. First operand 4452 states and 6024 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:08:01,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:01,739 INFO L93 Difference]: Finished difference Result 4642 states and 6264 transitions. [2024-11-23 23:08:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 23:08:01,740 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 153 [2024-11-23 23:08:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:01,752 INFO L225 Difference]: With dead ends: 4642 [2024-11-23 23:08:01,752 INFO L226 Difference]: Without dead ends: 4611 [2024-11-23 23:08:01,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:08:01,758 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 136 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:01,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 337 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-23 23:08:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4611 states. [2024-11-23 23:08:02,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4611 to 4437. [2024-11-23 23:08:02,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3984 states have (on average 1.2916666666666667) internal successors, (5146), 4005 states have internal predecessors, (5146), 429 states have call successors, (429), 2 states have call predecessors, (429), 2 states have return successors, (429), 429 states have call predecessors, (429), 429 states have call successors, (429) [2024-11-23 23:08:02,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6004 transitions. [2024-11-23 23:08:02,746 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6004 transitions. Word has length 153 [2024-11-23 23:08:02,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:02,746 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6004 transitions. [2024-11-23 23:08:02,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-23 23:08:02,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6004 transitions. [2024-11-23 23:08:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-23 23:08:02,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:02,748 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:02,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-11-23 23:08:02,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:02,953 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:08:02,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1342254102, now seen corresponding path program 2 times [2024-11-23 23:08:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870115784] [2024-11-23 23:08:02,954 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:08:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:03,004 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:08:03,004 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:08:03,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824218435] [2024-11-23 23:08:03,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:08:03,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:03,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:03,015 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:08:03,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-23 23:08:03,117 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:08:03,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:08:03,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:08:03,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 90 proven. 39 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-23 23:08:03,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:08:04,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:04,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870115784] [2024-11-23 23:08:04,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:08:04,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824218435] [2024-11-23 23:08:04,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824218435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:08:04,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:08:04,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-23 23:08:04,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959405906] [2024-11-23 23:08:04,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:08:04,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:08:04,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:04,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:08:04,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-23 23:08:04,200 INFO L87 Difference]: Start difference. First operand 4437 states and 6004 transitions. Second operand has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:08:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:06,626 INFO L93 Difference]: Finished difference Result 6816 states and 9279 transitions. [2024-11-23 23:08:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:08:06,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 153 [2024-11-23 23:08:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:06,640 INFO L225 Difference]: With dead ends: 6816 [2024-11-23 23:08:06,640 INFO L226 Difference]: Without dead ends: 6815 [2024-11-23 23:08:06,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:08:06,643 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 419 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:06,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 637 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 23:08:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6815 states. [2024-11-23 23:08:07,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6815 to 5295. [2024-11-23 23:08:07,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 4758 states have (on average 1.2994955863808322) internal successors, (6183), 4779 states have internal predecessors, (6183), 513 states have call successors, (513), 2 states have call predecessors, (513), 2 states have return successors, (513), 513 states have call predecessors, (513), 513 states have call successors, (513) [2024-11-23 23:08:07,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 7209 transitions. [2024-11-23 23:08:07,915 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 7209 transitions. Word has length 153 [2024-11-23 23:08:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:07,915 INFO L471 AbstractCegarLoop]: Abstraction has 5295 states and 7209 transitions. [2024-11-23 23:08:07,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-23 23:08:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 7209 transitions. [2024-11-23 23:08:07,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-23 23:08:07,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:07,916 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:07,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-11-23 23:08:08,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2024-11-23 23:08:08,117 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:08:08,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash -556201906, now seen corresponding path program 1 times [2024-11-23 23:08:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:08,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698241581] [2024-11-23 23:08:08,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:08,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:08:08,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:08,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698241581] [2024-11-23 23:08:08,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698241581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:08:08,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343242378] [2024-11-23 23:08:08,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:08:08,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:08,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:08,469 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:08:08,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-23 23:08:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:08:08,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:08:08,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:08:08,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:08:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-23 23:08:09,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343242378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:08:09,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:08:09,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-23 23:08:09,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646509529] [2024-11-23 23:08:09,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:08:09,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 23:08:09,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:09,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 23:08:09,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:08:09,023 INFO L87 Difference]: Start difference. First operand 5295 states and 7209 transitions. Second operand has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:08:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:08:10,857 INFO L93 Difference]: Finished difference Result 5297 states and 7211 transitions. [2024-11-23 23:08:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 23:08:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 155 [2024-11-23 23:08:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:08:10,868 INFO L225 Difference]: With dead ends: 5297 [2024-11-23 23:08:10,869 INFO L226 Difference]: Without dead ends: 5275 [2024-11-23 23:08:10,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:08:10,870 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 55 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:08:10,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 83 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:08:10,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5275 states. [2024-11-23 23:08:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5275 to 5273. [2024-11-23 23:08:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 4740 states have (on average 1.2974683544303798) internal successors, (6150), 4759 states have internal predecessors, (6150), 511 states have call successors, (511), 2 states have call predecessors, (511), 2 states have return successors, (511), 511 states have call predecessors, (511), 511 states have call successors, (511) [2024-11-23 23:08:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 7172 transitions. [2024-11-23 23:08:12,071 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 7172 transitions. Word has length 155 [2024-11-23 23:08:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:08:12,072 INFO L471 AbstractCegarLoop]: Abstraction has 5273 states and 7172 transitions. [2024-11-23 23:08:12,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-23 23:08:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 7172 transitions. [2024-11-23 23:08:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-23 23:08:12,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:08:12,074 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:08:12,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2024-11-23 23:08:12,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2024-11-23 23:08:12,275 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:08:12,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:08:12,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1510839631, now seen corresponding path program 3 times [2024-11-23 23:08:12,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:08:12,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795471574] [2024-11-23 23:08:12,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:08:12,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:08:12,322 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:08:12,326 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:08:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584913667] [2024-11-23 23:08:12,327 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:08:12,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:08:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:08:12,332 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:08:12,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-23 23:08:12,426 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-23 23:08:12,426 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:08:12,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:08:12,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:08:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 48 proven. 70 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-11-23 23:08:14,948 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:08:24,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:08:24,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795471574] [2024-11-23 23:08:24,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:08:24,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584913667] [2024-11-23 23:08:24,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584913667] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:08:24,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:08:24,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-23 23:08:24,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136133919] [2024-11-23 23:08:24,952 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:08:24,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:08:24,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:08:24,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:08:24,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=390, Unknown=1, NotChecked=0, Total=462 [2024-11-23 23:08:24,954 INFO L87 Difference]: Start difference. First operand 5273 states and 7172 transitions. Second operand has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-23 23:08:29,145 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] [2024-11-23 23:08:33,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:37,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:38,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:40,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:41,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:46,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:50,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:53,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:08:58,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:07,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:15,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:23,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:27,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:31,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:36,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:41,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:45,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:49,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:53,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:09:57,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:10:03,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:10:07,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-23 23:10:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:11,885 INFO L93 Difference]: Finished difference Result 5325 states and 7222 transitions. [2024-11-23 23:10:11,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:10:11,886 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 159 [2024-11-23 23:10:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:11,894 INFO L225 Difference]: With dead ends: 5325 [2024-11-23 23:10:11,894 INFO L226 Difference]: Without dead ends: 5299 [2024-11-23 23:10:11,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=226, Invalid=763, Unknown=3, NotChecked=0, Total=992 [2024-11-23 23:10:11,897 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 343 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 38 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:11,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 340 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1259 Invalid, 19 Unknown, 0 Unchecked, 90.2s Time] [2024-11-23 23:10:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5299 states. [2024-11-23 23:10:12,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5299 to 5045. [2024-11-23 23:10:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 4536 states have (on average 1.2973985890652557) internal successors, (5885), 4555 states have internal predecessors, (5885), 487 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 487 states have call predecessors, (487), 487 states have call successors, (487) [2024-11-23 23:10:12,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 6859 transitions. [2024-11-23 23:10:12,721 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 6859 transitions. Word has length 159 [2024-11-23 23:10:12,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:12,722 INFO L471 AbstractCegarLoop]: Abstraction has 5045 states and 6859 transitions. [2024-11-23 23:10:12,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-23 23:10:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 6859 transitions. [2024-11-23 23:10:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-23 23:10:12,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:12,724 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-23 23:10:12,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-23 23:10:12,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:12,931 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:10:12,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash -45870463, now seen corresponding path program 1 times [2024-11-23 23:10:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34552474] [2024-11-23 23:10:12,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:10:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869963030] [2024-11-23 23:10:12,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:10:12,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:12,979 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:12,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-23 23:10:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:10:13,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:10:13,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:10:14,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:14,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34552474] [2024-11-23 23:10:14,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:10:14,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869963030] [2024-11-23 23:10:14,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869963030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:14,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:10:14,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:10:14,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097238816] [2024-11-23 23:10:14,704 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:14,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:10:14,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:14,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:10:14,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:10:14,705 INFO L87 Difference]: Start difference. First operand 5045 states and 6859 transitions. Second operand has 11 states, 10 states have (on average 10.0) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:16,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:16,584 INFO L93 Difference]: Finished difference Result 5163 states and 7004 transitions. [2024-11-23 23:10:16,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:10:16,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.0) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 159 [2024-11-23 23:10:16,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:16,593 INFO L225 Difference]: With dead ends: 5163 [2024-11-23 23:10:16,593 INFO L226 Difference]: Without dead ends: 5161 [2024-11-23 23:10:16,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:10:16,596 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 146 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:16,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 468 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:10:16,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5161 states. [2024-11-23 23:10:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5161 to 5094. [2024-11-23 23:10:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5094 states, 4580 states have (on average 1.2975982532751091) internal successors, (5943), 4599 states have internal predecessors, (5943), 492 states have call successors, (492), 2 states have call predecessors, (492), 2 states have return successors, (492), 492 states have call predecessors, (492), 492 states have call successors, (492) [2024-11-23 23:10:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5094 states to 5094 states and 6927 transitions. [2024-11-23 23:10:17,421 INFO L78 Accepts]: Start accepts. Automaton has 5094 states and 6927 transitions. Word has length 159 [2024-11-23 23:10:17,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:17,421 INFO L471 AbstractCegarLoop]: Abstraction has 5094 states and 6927 transitions. [2024-11-23 23:10:17,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.0) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5094 states and 6927 transitions. [2024-11-23 23:10:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 23:10:17,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:17,422 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-23 23:10:17,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-23 23:10:17,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:17,623 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:10:17,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash -727290550, now seen corresponding path program 2 times [2024-11-23 23:10:17,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:17,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443054998] [2024-11-23 23:10:17,623 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:10:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:17,644 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:10:17,644 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:10:17,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800674104] [2024-11-23 23:10:17,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:10:17,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:17,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:17,652 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:17,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-23 23:10:17,747 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:10:17,747 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:10:17,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:10:17,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:10:19,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:19,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:19,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443054998] [2024-11-23 23:10:19,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:10:19,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800674104] [2024-11-23 23:10:19,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800674104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:19,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:10:19,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:10:19,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296596614] [2024-11-23 23:10:19,343 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:19,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:10:19,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:19,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:10:19,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:10:19,344 INFO L87 Difference]: Start difference. First operand 5094 states and 6927 transitions. Second operand has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:20,875 INFO L93 Difference]: Finished difference Result 5166 states and 7004 transitions. [2024-11-23 23:10:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:10:20,876 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 162 [2024-11-23 23:10:20,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:20,884 INFO L225 Difference]: With dead ends: 5166 [2024-11-23 23:10:20,884 INFO L226 Difference]: Without dead ends: 5164 [2024-11-23 23:10:20,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:10:20,886 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 152 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:20,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 372 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 23:10:20,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5164 states. [2024-11-23 23:10:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5164 to 5094. [2024-11-23 23:10:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5094 states, 4580 states have (on average 1.2967248908296942) internal successors, (5939), 4599 states have internal predecessors, (5939), 492 states have call successors, (492), 2 states have call predecessors, (492), 2 states have return successors, (492), 492 states have call predecessors, (492), 492 states have call successors, (492) [2024-11-23 23:10:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5094 states to 5094 states and 6923 transitions. [2024-11-23 23:10:21,939 INFO L78 Accepts]: Start accepts. Automaton has 5094 states and 6923 transitions. Word has length 162 [2024-11-23 23:10:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:21,940 INFO L471 AbstractCegarLoop]: Abstraction has 5094 states and 6923 transitions. [2024-11-23 23:10:21,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5094 states and 6923 transitions. [2024-11-23 23:10:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 23:10:21,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:21,942 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-23 23:10:21,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2024-11-23 23:10:22,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:22,143 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:10:22,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:22,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1867008494, now seen corresponding path program 3 times [2024-11-23 23:10:22,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:22,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841742973] [2024-11-23 23:10:22,144 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:10:22,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:22,191 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-23 23:10:22,196 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:10:22,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556526504] [2024-11-23 23:10:22,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:10:22,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:22,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:22,201 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:22,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-23 23:10:25,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 23:10:25,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:10:25,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:10:25,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:10:27,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:27,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:27,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841742973] [2024-11-23 23:10:27,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:10:27,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556526504] [2024-11-23 23:10:27,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556526504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:27,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:10:27,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:10:27,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654168190] [2024-11-23 23:10:27,545 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:27,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:10:27,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:27,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:10:27,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:10:27,547 INFO L87 Difference]: Start difference. First operand 5094 states and 6923 transitions. Second operand has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:29,440 INFO L93 Difference]: Finished difference Result 5217 states and 7079 transitions. [2024-11-23 23:10:29,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 23:10:29,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 162 [2024-11-23 23:10:29,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:29,451 INFO L225 Difference]: With dead ends: 5217 [2024-11-23 23:10:29,451 INFO L226 Difference]: Without dead ends: 5215 [2024-11-23 23:10:29,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:10:29,455 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 137 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:29,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 499 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:10:29,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2024-11-23 23:10:30,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 5163. [2024-11-23 23:10:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 4641 states have (on average 1.2969187675070029) internal successors, (6019), 4660 states have internal predecessors, (6019), 500 states have call successors, (500), 2 states have call predecessors, (500), 2 states have return successors, (500), 500 states have call predecessors, (500), 500 states have call successors, (500) [2024-11-23 23:10:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 7019 transitions. [2024-11-23 23:10:30,191 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 7019 transitions. Word has length 162 [2024-11-23 23:10:30,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:30,191 INFO L471 AbstractCegarLoop]: Abstraction has 5163 states and 7019 transitions. [2024-11-23 23:10:30,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:30,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 7019 transitions. [2024-11-23 23:10:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-23 23:10:30,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:30,192 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-23 23:10:30,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-23 23:10:30,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:30,393 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:10:30,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:30,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1321506948, now seen corresponding path program 4 times [2024-11-23 23:10:30,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:30,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899307216] [2024-11-23 23:10:30,393 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:10:30,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:30,431 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:10:30,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:10:30,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112652827] [2024-11-23 23:10:30,432 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 23:10:30,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:30,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:30,438 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:30,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-23 23:10:30,540 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 23:10:30,540 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:10:30,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 23:10:30,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:10:32,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:32,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:32,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899307216] [2024-11-23 23:10:32,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:10:32,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112652827] [2024-11-23 23:10:32,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112652827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:10:32,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:10:32,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-23 23:10:32,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821332522] [2024-11-23 23:10:32,549 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:32,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 23:10:32,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:32,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 23:10:32,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-23 23:10:32,550 INFO L87 Difference]: Start difference. First operand 5163 states and 7019 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:34,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:34,672 INFO L93 Difference]: Finished difference Result 5295 states and 7174 transitions. [2024-11-23 23:10:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:10:34,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 162 [2024-11-23 23:10:34,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:34,683 INFO L225 Difference]: With dead ends: 5295 [2024-11-23 23:10:34,683 INFO L226 Difference]: Without dead ends: 5268 [2024-11-23 23:10:34,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:10:34,686 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 147 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:34,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 456 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 23:10:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2024-11-23 23:10:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5143. [2024-11-23 23:10:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 4623 states have (on average 1.2963443651308675) internal successors, (5993), 4642 states have internal predecessors, (5993), 498 states have call successors, (498), 2 states have call predecessors, (498), 2 states have return successors, (498), 498 states have call predecessors, (498), 498 states have call successors, (498) [2024-11-23 23:10:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 6989 transitions. [2024-11-23 23:10:35,608 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 6989 transitions. Word has length 162 [2024-11-23 23:10:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:35,608 INFO L471 AbstractCegarLoop]: Abstraction has 5143 states and 6989 transitions. [2024-11-23 23:10:35,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:10:35,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 6989 transitions. [2024-11-23 23:10:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-23 23:10:35,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:35,609 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:35,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-23 23:10:35,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:35,810 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:10:35,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:35,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1011439597, now seen corresponding path program 2 times [2024-11-23 23:10:35,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:35,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620230466] [2024-11-23 23:10:35,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:10:35,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:35,830 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:10:35,831 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:10:35,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829265182] [2024-11-23 23:10:35,832 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:10:35,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:35,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:35,838 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:35,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-23 23:10:36,019 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:10:36,020 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:10:36,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-23 23:10:36,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:10:38,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:10:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:39,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620230466] [2024-11-23 23:10:39,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:10:39,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829265182] [2024-11-23 23:10:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829265182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:10:39,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:10:39,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 21 [2024-11-23 23:10:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053599322] [2024-11-23 23:10:39,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:39,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 23:10:39,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:39,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 23:10:39,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:10:39,725 INFO L87 Difference]: Start difference. First operand 5143 states and 6989 transitions. Second operand has 22 states, 21 states have (on average 9.523809523809524) internal successors, (200), 22 states have internal predecessors, (200), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 23:10:47,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:10:47,243 INFO L93 Difference]: Finished difference Result 5499 states and 7453 transitions. [2024-11-23 23:10:47,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-23 23:10:47,244 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.523809523809524) internal successors, (200), 22 states have internal predecessors, (200), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 163 [2024-11-23 23:10:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:10:47,251 INFO L225 Difference]: With dead ends: 5499 [2024-11-23 23:10:47,251 INFO L226 Difference]: Without dead ends: 5498 [2024-11-23 23:10:47,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=552, Invalid=1998, Unknown=0, NotChecked=0, Total=2550 [2024-11-23 23:10:47,253 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 789 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 2882 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 2882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:10:47,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 436 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 2882 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-23 23:10:47,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5498 states. [2024-11-23 23:10:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5498 to 5407. [2024-11-23 23:10:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 4861 states have (on average 1.2943838716313516) internal successors, (6292), 4880 states have internal predecessors, (6292), 524 states have call successors, (524), 2 states have call predecessors, (524), 2 states have return successors, (524), 524 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-23 23:10:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 7340 transitions. [2024-11-23 23:10:47,987 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 7340 transitions. Word has length 163 [2024-11-23 23:10:47,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:10:47,987 INFO L471 AbstractCegarLoop]: Abstraction has 5407 states and 7340 transitions. [2024-11-23 23:10:47,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.523809523809524) internal successors, (200), 22 states have internal predecessors, (200), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-23 23:10:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 7340 transitions. [2024-11-23 23:10:47,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:10:47,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:10:47,989 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:10:47,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2024-11-23 23:10:48,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:48,190 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:10:48,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:10:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1289856354, now seen corresponding path program 2 times [2024-11-23 23:10:48,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:10:48,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334950495] [2024-11-23 23:10:48,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:10:48,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:10:48,214 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:10:48,214 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:10:48,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483453934] [2024-11-23 23:10:48,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:10:48,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:10:48,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:10:48,218 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:10:48,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-23 23:10:48,295 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:10:48,295 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:10:48,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-23 23:10:48,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:10:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 6 proven. 174 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-23 23:10:50,245 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:10:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 6 proven. 174 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-23 23:10:51,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:10:51,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334950495] [2024-11-23 23:10:51,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:10:51,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483453934] [2024-11-23 23:10:51,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483453934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:10:51,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:10:51,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 25 [2024-11-23 23:10:51,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313347930] [2024-11-23 23:10:51,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:10:51,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-23 23:10:51,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:10:51,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-23 23:10:51,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2024-11-23 23:10:51,736 INFO L87 Difference]: Start difference. First operand 5407 states and 7340 transitions. Second operand has 26 states, 23 states have (on average 9.26086956521739) internal successors, (213), 24 states have internal predecessors, (213), 12 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2024-11-23 23:11:01,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:01,510 INFO L93 Difference]: Finished difference Result 5696 states and 7677 transitions. [2024-11-23 23:11:01,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-23 23:11:01,511 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 9.26086956521739) internal successors, (213), 24 states have internal predecessors, (213), 12 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) Word has length 164 [2024-11-23 23:11:01,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:01,518 INFO L225 Difference]: With dead ends: 5696 [2024-11-23 23:11:01,518 INFO L226 Difference]: Without dead ends: 5693 [2024-11-23 23:11:01,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=353, Invalid=1207, Unknown=0, NotChecked=0, Total=1560 [2024-11-23 23:11:01,520 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 988 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 3236 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 3236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:01,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 722 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 3236 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-23 23:11:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2024-11-23 23:11:02,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5468. [2024-11-23 23:11:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 4916 states have (on average 1.2917005695687551) internal successors, (6350), 4935 states have internal predecessors, (6350), 530 states have call successors, (530), 2 states have call predecessors, (530), 2 states have return successors, (530), 530 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-23 23:11:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 7410 transitions. [2024-11-23 23:11:02,314 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 7410 transitions. Word has length 164 [2024-11-23 23:11:02,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:02,314 INFO L471 AbstractCegarLoop]: Abstraction has 5468 states and 7410 transitions. [2024-11-23 23:11:02,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 9.26086956521739) internal successors, (213), 24 states have internal predecessors, (213), 12 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (26), 12 states have call predecessors, (26), 12 states have call successors, (26) [2024-11-23 23:11:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 7410 transitions. [2024-11-23 23:11:02,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:11:02,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:02,315 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-23 23:11:02,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2024-11-23 23:11:02,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:02,516 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:02,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1153453228, now seen corresponding path program 1 times [2024-11-23 23:11:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890298957] [2024-11-23 23:11:02,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:11:02,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594753218] [2024-11-23 23:11:02,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:02,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:02,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:02,568 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:02,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-23 23:11:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:02,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:11:02,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 22 proven. 113 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:11:03,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890298957] [2024-11-23 23:11:03,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:11:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594753218] [2024-11-23 23:11:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594753218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:03,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:03,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:11:03,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68197884] [2024-11-23 23:11:03,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:03,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:11:03,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:03,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:11:03,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:11:03,811 INFO L87 Difference]: Start difference. First operand 5468 states and 7410 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:11:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:07,719 INFO L93 Difference]: Finished difference Result 5606 states and 7552 transitions. [2024-11-23 23:11:07,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-23 23:11:07,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 164 [2024-11-23 23:11:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:07,725 INFO L225 Difference]: With dead ends: 5606 [2024-11-23 23:11:07,725 INFO L226 Difference]: Without dead ends: 5600 [2024-11-23 23:11:07,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2024-11-23 23:11:07,727 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 432 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:07,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 574 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-23 23:11:07,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5600 states. [2024-11-23 23:11:08,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5600 to 5465. [2024-11-23 23:11:08,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5465 states, 4913 states have (on average 1.2804803582332587) internal successors, (6291), 4932 states have internal predecessors, (6291), 530 states have call successors, (530), 2 states have call predecessors, (530), 2 states have return successors, (530), 530 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-23 23:11:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5465 states to 5465 states and 7351 transitions. [2024-11-23 23:11:08,497 INFO L78 Accepts]: Start accepts. Automaton has 5465 states and 7351 transitions. Word has length 164 [2024-11-23 23:11:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:08,497 INFO L471 AbstractCegarLoop]: Abstraction has 5465 states and 7351 transitions. [2024-11-23 23:11:08,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:11:08,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5465 states and 7351 transitions. [2024-11-23 23:11:08,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-23 23:11:08,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:08,498 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2024-11-23 23:11:08,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:08,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:08,699 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:08,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1342145118, now seen corresponding path program 2 times [2024-11-23 23:11:08,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:08,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545422886] [2024-11-23 23:11:08,700 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:11:08,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:08,717 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:11:08,717 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:11:08,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147532332] [2024-11-23 23:11:08,718 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:11:08,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:08,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:08,725 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:08,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-23 23:11:08,811 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:11:08,812 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:11:08,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:11:08,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-23 23:11:09,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:09,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545422886] [2024-11-23 23:11:09,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:11:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147532332] [2024-11-23 23:11:09,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147532332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:09,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:09,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-23 23:11:09,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092684746] [2024-11-23 23:11:09,986 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:09,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 23:11:09,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:09,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 23:11:09,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-23 23:11:09,988 INFO L87 Difference]: Start difference. First operand 5465 states and 7351 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:11:14,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:14,480 INFO L93 Difference]: Finished difference Result 8047 states and 10841 transitions. [2024-11-23 23:11:14,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-23 23:11:14,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 164 [2024-11-23 23:11:14,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:14,489 INFO L225 Difference]: With dead ends: 8047 [2024-11-23 23:11:14,490 INFO L226 Difference]: Without dead ends: 8044 [2024-11-23 23:11:14,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2024-11-23 23:11:14,491 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 759 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:14,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 651 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-23 23:11:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8044 states. [2024-11-23 23:11:15,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8044 to 6553. [2024-11-23 23:11:15,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6553 states, 5894 states have (on average 1.2858839497794368) internal successors, (7579), 5913 states have internal predecessors, (7579), 637 states have call successors, (637), 2 states have call predecessors, (637), 2 states have return successors, (637), 637 states have call predecessors, (637), 637 states have call successors, (637) [2024-11-23 23:11:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6553 states to 6553 states and 8853 transitions. [2024-11-23 23:11:15,487 INFO L78 Accepts]: Start accepts. Automaton has 6553 states and 8853 transitions. Word has length 164 [2024-11-23 23:11:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:15,488 INFO L471 AbstractCegarLoop]: Abstraction has 6553 states and 8853 transitions. [2024-11-23 23:11:15,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-23 23:11:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6553 states and 8853 transitions. [2024-11-23 23:11:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-23 23:11:15,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:15,489 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 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] [2024-11-23 23:11:15,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-23 23:11:15,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:15,690 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:15,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:15,690 INFO L85 PathProgramCache]: Analyzing trace with hash 786981785, now seen corresponding path program 1 times [2024-11-23 23:11:15,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:15,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895613939] [2024-11-23 23:11:15,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:15,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:15,921 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:15,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:15,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895613939] [2024-11-23 23:11:15,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895613939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:15,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826860559] [2024-11-23 23:11:15,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:15,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:15,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:15,925 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:15,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-23 23:11:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:16,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:11:16,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-23 23:11:16,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:17,028 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-23 23:11:17,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826860559] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:11:17,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:11:17,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-23 23:11:17,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159847020] [2024-11-23 23:11:17,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:17,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 23:11:17,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:17,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 23:11:17,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-23 23:11:17,032 INFO L87 Difference]: Start difference. First operand 6553 states and 8853 transitions. Second operand has 18 states, 17 states have (on average 15.058823529411764) internal successors, (256), 18 states have internal predecessors, (256), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-23 23:11:19,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:19,857 INFO L93 Difference]: Finished difference Result 6743 states and 9012 transitions. [2024-11-23 23:11:19,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 23:11:19,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 15.058823529411764) internal successors, (256), 18 states have internal predecessors, (256), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) Word has length 173 [2024-11-23 23:11:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:19,866 INFO L225 Difference]: With dead ends: 6743 [2024-11-23 23:11:19,867 INFO L226 Difference]: Without dead ends: 6742 [2024-11-23 23:11:19,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=529, Invalid=1111, Unknown=0, NotChecked=0, Total=1640 [2024-11-23 23:11:19,869 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 680 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:19,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1091 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:11:19,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6742 states. [2024-11-23 23:11:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6742 to 6213. [2024-11-23 23:11:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 5589 states have (on average 1.2784040078726069) internal successors, (7145), 5608 states have internal predecessors, (7145), 602 states have call successors, (602), 2 states have call predecessors, (602), 2 states have return successors, (602), 602 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-23 23:11:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 8349 transitions. [2024-11-23 23:11:20,852 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 8349 transitions. Word has length 173 [2024-11-23 23:11:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:20,852 INFO L471 AbstractCegarLoop]: Abstraction has 6213 states and 8349 transitions. [2024-11-23 23:11:20,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 15.058823529411764) internal successors, (256), 18 states have internal predecessors, (256), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 11 states have call predecessors, (31), 11 states have call successors, (31) [2024-11-23 23:11:20,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 8349 transitions. [2024-11-23 23:11:20,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-23 23:11:20,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:20,853 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 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] [2024-11-23 23:11:20,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:21,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:21,054 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:21,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:21,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1073226763, now seen corresponding path program 1 times [2024-11-23 23:11:21,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:21,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769651813] [2024-11-23 23:11:21,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:21,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:21,253 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:21,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:21,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769651813] [2024-11-23 23:11:21,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769651813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:21,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553735921] [2024-11-23 23:11:21,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:21,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:21,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:21,257 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:21,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-23 23:11:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:21,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:11:21,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:22,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:22,443 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:22,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553735921] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:11:22,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:11:22,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-23 23:11:22,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204268614] [2024-11-23 23:11:22,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:22,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:11:22,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:22,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:11:22,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:11:22,446 INFO L87 Difference]: Start difference. First operand 6213 states and 8349 transitions. Second operand has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-23 23:11:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:25,552 INFO L93 Difference]: Finished difference Result 8089 states and 10742 transitions. [2024-11-23 23:11:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:11:25,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) Word has length 174 [2024-11-23 23:11:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:25,562 INFO L225 Difference]: With dead ends: 8089 [2024-11-23 23:11:25,562 INFO L226 Difference]: Without dead ends: 8087 [2024-11-23 23:11:25,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=227, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:11:25,564 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 606 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:25,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 587 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:11:25,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8087 states. [2024-11-23 23:11:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8087 to 7234. [2024-11-23 23:11:26,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 6504 states have (on average 1.2816728167281672) internal successors, (8336), 6523 states have internal predecessors, (8336), 708 states have call successors, (708), 2 states have call predecessors, (708), 2 states have return successors, (708), 708 states have call predecessors, (708), 708 states have call successors, (708) [2024-11-23 23:11:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 9752 transitions. [2024-11-23 23:11:26,725 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 9752 transitions. Word has length 174 [2024-11-23 23:11:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:26,725 INFO L471 AbstractCegarLoop]: Abstraction has 7234 states and 9752 transitions. [2024-11-23 23:11:26,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-23 23:11:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 9752 transitions. [2024-11-23 23:11:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-23 23:11:26,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:26,728 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 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] [2024-11-23 23:11:26,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2024-11-23 23:11:26,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:26,929 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:26,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 576816617, now seen corresponding path program 1 times [2024-11-23 23:11:26,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:26,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862217707] [2024-11-23 23:11:26,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:26,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:27,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862217707] [2024-11-23 23:11:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862217707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857347518] [2024-11-23 23:11:27,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:11:27,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:27,122 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:27,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-23 23:11:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:11:27,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 23:11:27,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:27,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857347518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:11:28,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:11:28,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-23 23:11:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953867740] [2024-11-23 23:11:28,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:28,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 23:11:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:28,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 23:11:28,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-23 23:11:28,165 INFO L87 Difference]: Start difference. First operand 7234 states and 9752 transitions. Second operand has 14 states, 13 states have (on average 24.615384615384617) internal successors, (320), 14 states have internal predecessors, (320), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-23 23:11:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:31,271 INFO L93 Difference]: Finished difference Result 8958 states and 11959 transitions. [2024-11-23 23:11:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 23:11:31,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.615384615384617) internal successors, (320), 14 states have internal predecessors, (320), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) Word has length 176 [2024-11-23 23:11:31,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:31,284 INFO L225 Difference]: With dead ends: 8958 [2024-11-23 23:11:31,284 INFO L226 Difference]: Without dead ends: 8956 [2024-11-23 23:11:31,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=227, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:11:31,287 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 602 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:31,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 695 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 23:11:31,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8956 states. [2024-11-23 23:11:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8956 to 8176. [2024-11-23 23:11:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8176 states, 7354 states have (on average 1.2844710361707914) internal successors, (9446), 7373 states have internal predecessors, (9446), 800 states have call successors, (800), 2 states have call predecessors, (800), 2 states have return successors, (800), 800 states have call predecessors, (800), 800 states have call successors, (800) [2024-11-23 23:11:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8176 states to 8176 states and 11046 transitions. [2024-11-23 23:11:32,610 INFO L78 Accepts]: Start accepts. Automaton has 8176 states and 11046 transitions. Word has length 176 [2024-11-23 23:11:32,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:32,610 INFO L471 AbstractCegarLoop]: Abstraction has 8176 states and 11046 transitions. [2024-11-23 23:11:32,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.615384615384617) internal successors, (320), 14 states have internal predecessors, (320), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-11-23 23:11:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8176 states and 11046 transitions. [2024-11-23 23:11:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 23:11:32,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:32,612 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:32,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2024-11-23 23:11:32,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:32,812 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:32,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:32,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2015770829, now seen corresponding path program 5 times [2024-11-23 23:11:32,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:32,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266851185] [2024-11-23 23:11:32,813 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:11:32,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:32,833 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-23 23:11:32,833 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:11:32,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787758160] [2024-11-23 23:11:32,834 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-23 23:11:32,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:32,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:32,838 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:32,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-23 23:11:33,065 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-23 23:11:33,065 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:11:33,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 23:11:33,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:11:34,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:11:34,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:11:34,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266851185] [2024-11-23 23:11:34,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:11:34,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787758160] [2024-11-23 23:11:34,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787758160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:11:34,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:11:34,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-23 23:11:34,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665820402] [2024-11-23 23:11:34,260 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:11:34,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:11:34,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:11:34,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:11:34,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:11:34,261 INFO L87 Difference]: Start difference. First operand 8176 states and 11046 transitions. Second operand has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 8 states have internal predecessors, (115), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:11:36,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:11:36,346 INFO L93 Difference]: Finished difference Result 8208 states and 11078 transitions. [2024-11-23 23:11:36,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:11:36,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 8 states have internal predecessors, (115), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 179 [2024-11-23 23:11:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:11:36,391 INFO L225 Difference]: With dead ends: 8208 [2024-11-23 23:11:36,391 INFO L226 Difference]: Without dead ends: 8207 [2024-11-23 23:11:36,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:11:36,392 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 73 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:11:36,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 481 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:11:36,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8207 states. [2024-11-23 23:11:37,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8207 to 8176. [2024-11-23 23:11:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8176 states, 7354 states have (on average 1.2843350557519717) internal successors, (9445), 7373 states have internal predecessors, (9445), 800 states have call successors, (800), 2 states have call predecessors, (800), 2 states have return successors, (800), 800 states have call predecessors, (800), 800 states have call successors, (800) [2024-11-23 23:11:37,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8176 states to 8176 states and 11045 transitions. [2024-11-23 23:11:37,664 INFO L78 Accepts]: Start accepts. Automaton has 8176 states and 11045 transitions. Word has length 179 [2024-11-23 23:11:37,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:11:37,664 INFO L471 AbstractCegarLoop]: Abstraction has 8176 states and 11045 transitions. [2024-11-23 23:11:37,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 8 states have internal predecessors, (115), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-23 23:11:37,664 INFO L276 IsEmpty]: Start isEmpty. Operand 8176 states and 11045 transitions. [2024-11-23 23:11:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 23:11:37,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:11:37,665 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:11:37,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-11-23 23:11:37,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2024-11-23 23:11:37,866 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:11:37,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:11:37,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1829846671, now seen corresponding path program 6 times [2024-11-23 23:11:37,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:11:37,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990746669] [2024-11-23 23:11:37,866 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:11:37,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:11:37,890 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-23 23:11:37,890 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:11:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990185427] [2024-11-23 23:11:37,892 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-23 23:11:37,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:11:37,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:11:37,897 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:11:37,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-23 23:11:38,235 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-23 23:11:38,235 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:11:38,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-23 23:11:38,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:11:39,376 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 42 proven. 182 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-23 23:11:39,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:12:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 27 proven. 147 refuted. 23 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-23 23:12:41,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:12:41,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990746669] [2024-11-23 23:12:41,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:12:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990185427] [2024-11-23 23:12:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990185427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:12:41,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:12:41,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2024-11-23 23:12:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613418541] [2024-11-23 23:12:41,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 23:12:41,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 23:12:41,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:12:41,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 23:12:41,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=342, Unknown=4, NotChecked=0, Total=462 [2024-11-23 23:12:41,161 INFO L87 Difference]: Start difference. First operand 8176 states and 11045 transitions. Second operand has 22 states, 21 states have (on average 10.80952380952381) internal successors, (227), 22 states have internal predecessors, (227), 11 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 9 states have call predecessors, (26), 11 states have call successors, (26) [2024-11-23 23:12:45,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:12:49,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:12:58,727 WARN L286 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 55 DAG size of output: 54 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:13:02,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:04,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:08,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:11,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:14,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:18,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:20,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:22,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:26,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:32,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:36,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:41,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:49,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:54,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:13:58,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:05,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:10,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:12,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:18,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:23,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:25,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:27,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:29,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:14:46,614 WARN L286 SmtUtils]: Spent 14.88s on a formula simplification. DAG size of input: 54 DAG size of output: 53 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:14:51,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:04,816 WARN L286 SmtUtils]: Spent 11.34s on a formula simplification. DAG size of input: 56 DAG size of output: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-23 23:15:07,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:10,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:13,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:21,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:24,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:26,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:30,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:32,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:35,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:40,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:42,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:48,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:54,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:56,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-23 23:15:56,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:15:56,933 INFO L93 Difference]: Finished difference Result 8667 states and 11647 transitions. [2024-11-23 23:15:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 23:15:56,934 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.80952380952381) internal successors, (227), 22 states have internal predecessors, (227), 11 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 9 states have call predecessors, (26), 11 states have call successors, (26) Word has length 179 [2024-11-23 23:15:56,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:15:56,944 INFO L225 Difference]: With dead ends: 8667 [2024-11-23 23:15:56,944 INFO L226 Difference]: Without dead ends: 8666 [2024-11-23 23:15:56,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 70.9s TimeCoverageRelationStatistics Valid=353, Invalid=903, Unknown=4, NotChecked=0, Total=1260 [2024-11-23 23:15:56,947 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 985 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 145 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:15:56,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 987 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 3191 Invalid, 14 Unknown, 0 Unchecked, 148.3s Time] [2024-11-23 23:15:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8666 states. [2024-11-23 23:15:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8666 to 8366. [2024-11-23 23:15:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8366 states, 7526 states have (on average 1.2836832314642572) internal successors, (9661), 7545 states have internal predecessors, (9661), 818 states have call successors, (818), 2 states have call predecessors, (818), 2 states have return successors, (818), 818 states have call predecessors, (818), 818 states have call successors, (818) [2024-11-23 23:15:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8366 states to 8366 states and 11297 transitions. [2024-11-23 23:15:58,187 INFO L78 Accepts]: Start accepts. Automaton has 8366 states and 11297 transitions. Word has length 179 [2024-11-23 23:15:58,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:15:58,188 INFO L471 AbstractCegarLoop]: Abstraction has 8366 states and 11297 transitions. [2024-11-23 23:15:58,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.80952380952381) internal successors, (227), 22 states have internal predecessors, (227), 11 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 9 states have call predecessors, (26), 11 states have call successors, (26) [2024-11-23 23:15:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8366 states and 11297 transitions. [2024-11-23 23:15:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 23:15:58,190 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:15:58,190 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:15:58,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-23 23:15:58,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2024-11-23 23:15:58,394 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:15:58,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:15:58,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1170914995, now seen corresponding path program 7 times [2024-11-23 23:15:58,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:15:58,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195379747] [2024-11-23 23:15:58,395 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:15:58,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:15:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 23:15:58,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895295175] [2024-11-23 23:15:58,409 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-23 23:15:58,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:15:58,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:15:58,414 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:15:58,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-23 23:15:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:15:58,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 23:15:58,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:15:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-23 23:15:59,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:15:59,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:15:59,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195379747] [2024-11-23 23:15:59,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:15:59,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895295175] [2024-11-23 23:15:59,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895295175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:15:59,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:15:59,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-23 23:15:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586657359] [2024-11-23 23:15:59,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:15:59,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:15:59,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:15:59,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:15:59,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:15:59,898 INFO L87 Difference]: Start difference. First operand 8366 states and 11297 transitions. Second operand has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-23 23:16:02,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:16:02,928 INFO L93 Difference]: Finished difference Result 8457 states and 11395 transitions. [2024-11-23 23:16:02,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:16:02,928 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 179 [2024-11-23 23:16:02,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:16:02,940 INFO L225 Difference]: With dead ends: 8457 [2024-11-23 23:16:02,940 INFO L226 Difference]: Without dead ends: 8456 [2024-11-23 23:16:02,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2024-11-23 23:16:02,942 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 478 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:16:02,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 358 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:16:02,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2024-11-23 23:16:04,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 8366. [2024-11-23 23:16:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8366 states, 7526 states have (on average 1.2835503587563115) internal successors, (9660), 7545 states have internal predecessors, (9660), 818 states have call successors, (818), 2 states have call predecessors, (818), 2 states have return successors, (818), 818 states have call predecessors, (818), 818 states have call successors, (818) [2024-11-23 23:16:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8366 states to 8366 states and 11296 transitions. [2024-11-23 23:16:04,192 INFO L78 Accepts]: Start accepts. Automaton has 8366 states and 11296 transitions. Word has length 179 [2024-11-23 23:16:04,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:16:04,192 INFO L471 AbstractCegarLoop]: Abstraction has 8366 states and 11296 transitions. [2024-11-23 23:16:04,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 14 states have internal predecessors, (118), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-23 23:16:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8366 states and 11296 transitions. [2024-11-23 23:16:04,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 23:16:04,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:16:04,194 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-23 23:16:04,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2024-11-23 23:16:04,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2024-11-23 23:16:04,394 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:16:04,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:16:04,395 INFO L85 PathProgramCache]: Analyzing trace with hash -220214785, now seen corresponding path program 8 times [2024-11-23 23:16:04,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:16:04,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835416677] [2024-11-23 23:16:04,395 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:16:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:16:04,411 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:16:04,411 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:16:04,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635296073] [2024-11-23 23:16:04,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 23:16:04,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:16:04,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:16:04,419 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:16:04,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-23 23:16:04,492 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 23:16:04,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:16:04,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-23 23:16:04,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:16:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 158 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-23 23:16:05,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:16:06,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:16:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835416677] [2024-11-23 23:16:06,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 23:16:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635296073] [2024-11-23 23:16:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635296073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:16:06,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:16:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-23 23:16:06,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113326513] [2024-11-23 23:16:06,213 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 23:16:06,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 23:16:06,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:16:06,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 23:16:06,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:16:06,214 INFO L87 Difference]: Start difference. First operand 8366 states and 11296 transitions. Second operand has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-23 23:16:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:16:08,939 INFO L93 Difference]: Finished difference Result 8427 states and 11360 transitions. [2024-11-23 23:16:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:16:08,940 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 179 [2024-11-23 23:16:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:16:08,948 INFO L225 Difference]: With dead ends: 8427 [2024-11-23 23:16:08,948 INFO L226 Difference]: Without dead ends: 8426 [2024-11-23 23:16:08,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:16:08,950 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 161 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:16:08,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 465 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 23:16:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8426 states. [2024-11-23 23:16:10,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8426 to 8366. [2024-11-23 23:16:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8366 states, 7526 states have (on average 1.2834174860483656) internal successors, (9659), 7545 states have internal predecessors, (9659), 818 states have call successors, (818), 2 states have call predecessors, (818), 2 states have return successors, (818), 818 states have call predecessors, (818), 818 states have call successors, (818) [2024-11-23 23:16:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8366 states to 8366 states and 11295 transitions. [2024-11-23 23:16:10,160 INFO L78 Accepts]: Start accepts. Automaton has 8366 states and 11295 transitions. Word has length 179 [2024-11-23 23:16:10,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:16:10,160 INFO L471 AbstractCegarLoop]: Abstraction has 8366 states and 11295 transitions. [2024-11-23 23:16:10,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.666666666666667) internal successors, (115), 16 states have internal predecessors, (115), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-23 23:16:10,161 INFO L276 IsEmpty]: Start isEmpty. Operand 8366 states and 11295 transitions. [2024-11-23 23:16:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 23:16:10,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:16:10,162 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:16:10,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-23 23:16:10,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2024-11-23 23:16:10,362 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-23 23:16:10,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:16:10,363 INFO L85 PathProgramCache]: Analyzing trace with hash -368234099, now seen corresponding path program 9 times [2024-11-23 23:16:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:16:10,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714926980] [2024-11-23 23:16:10,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:16:10,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:16:10,382 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-23 23:16:10,382 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-23 23:16:10,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177452406] [2024-11-23 23:16:10,383 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 23:16:10,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:16:10,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:16:10,388 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:16:10,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dcef203-980b-49d0-83eb-beb89e4db1ce/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-23 23:16:10,588 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-23 23:16:10,588 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 23:16:10,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 23:16:10,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:16:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 28 proven. 147 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-23 23:16:19,214 INFO L312 TraceCheckSpWp]: Computing backward predicates...