./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound10.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_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/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_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/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_80831199-22db-49f6-8279-9817ec6774c4/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 4018f196b5be3ea7c518259557cd649a90434a9cacf1ef4108caf962c0feb788 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:01:39,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:01:39,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:01:39,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:01:39,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:01:39,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:01:39,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:01:39,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:01:39,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:01:39,159 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:01:39,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:01:39,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:01:39,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:01:39,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:01:39,160 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:01:39,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:01:39,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:01:39,160 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:01:39,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:01:39,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:01:39,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:01:39,162 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:39,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:01:39,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:39,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:01:39,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:01:39,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:01:39,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:01:39,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:01:39,164 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_80831199-22db-49f6-8279-9817ec6774c4/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 -> 4018f196b5be3ea7c518259557cd649a90434a9cacf1ef4108caf962c0feb788 [2024-11-24 00:01:39,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:01:39,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:01:39,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:01:39,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:01:39,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:01:39,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound10.c [2024-11-24 00:01:42,764 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/data/3548ce302/b635ee3fd3dc4b4db19fccac4e1c2ea7/FLAGd91e85f0f [2024-11-24 00:01:43,046 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:01:43,047 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound10.c [2024-11-24 00:01:43,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/data/3548ce302/b635ee3fd3dc4b4db19fccac4e1c2ea7/FLAGd91e85f0f [2024-11-24 00:01:43,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/data/3548ce302/b635ee3fd3dc4b4db19fccac4e1c2ea7 [2024-11-24 00:01:43,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:01:43,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:01:43,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:01:43,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:01:43,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:01:43,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52047879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43, skipping insertion in model container [2024-11-24 00:01:43,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:01:43,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:01:43,396 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:01:43,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:01:43,458 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:01:43,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43 WrapperNode [2024-11-24 00:01:43,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:01:43,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:01:43,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:01:43,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:01:43,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,525 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 115 [2024-11-24 00:01:43,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:01:43,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:01:43,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:01:43,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:01:43,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,570 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:01:43,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:01:43,585 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:01:43,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:01:43,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:01:43,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (1/1) ... [2024-11-24 00:01:43,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:01:43,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:43,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:01:43,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:01:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:01:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:01:43,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:01:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:01:43,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:01:43,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:01:43,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 00:01:43,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 00:01:43,758 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:01:43,760 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:01:44,342 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-24 00:01:44,342 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:01:44,364 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:01:44,365 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:01:44,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:44 BoogieIcfgContainer [2024-11-24 00:01:44,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:01:44,368 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:01:44,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:01:44,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:01:44,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:01:43" (1/3) ... [2024-11-24 00:01:44,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758d02a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:44, skipping insertion in model container [2024-11-24 00:01:44,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:01:43" (2/3) ... [2024-11-24 00:01:44,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758d02a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:44, skipping insertion in model container [2024-11-24 00:01:44,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:44" (3/3) ... [2024-11-24 00:01:44,384 INFO L128 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound10.c [2024-11-24 00:01:44,406 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:01:44,408 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bresenham-ll_valuebound10.c that has 3 procedures, 140 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2024-11-24 00:01:44,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:01:44,500 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;@e704de0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:01:44,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-24 00:01:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 75 states have (on average 1.8533333333333333) internal successors, (139), 133 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:01:44,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 00:01:44,514 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:44,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:44,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:44,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:44,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1921820561, now seen corresponding path program 1 times [2024-11-24 00:01:44,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:44,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86994905] [2024-11-24 00:01:44,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:44,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:01:44,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:44,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86994905] [2024-11-24 00:01:44,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86994905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:01:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623394554] [2024-11-24 00:01:44,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:44,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:44,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:44,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:44,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:01:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:44,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:01:44,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:01:44,801 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:44,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623394554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:44,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:01:44,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:01:44,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615760707] [2024-11-24 00:01:44,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:44,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:01:44,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:44,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:01:44,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:01:44,840 INFO L87 Difference]: Start difference. First operand has 140 states, 75 states have (on average 1.8533333333333333) internal successors, (139), 133 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2024-11-24 00:01:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:44,884 INFO L93 Difference]: Finished difference Result 276 states and 293 transitions. [2024-11-24 00:01:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:01:44,886 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 [2024-11-24 00:01:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:44,894 INFO L225 Difference]: With dead ends: 276 [2024-11-24 00:01:44,894 INFO L226 Difference]: Without dead ends: 133 [2024-11-24 00:01:44,897 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 [2024-11-24 00:01:44,900 INFO L435 NwaCegarLoop]: 142 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, 142 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:44,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:01:44,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-24 00:01:44,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-24 00:01:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 127 states have internal predecessors, (129), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2024-11-24 00:01:44,978 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 14 [2024-11-24 00:01:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:44,978 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2024-11-24 00:01:44,979 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) [2024-11-24 00:01:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2024-11-24 00:01:44,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 00:01:44,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:44,980 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:44,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:01:45,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:45,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:45,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1528853133, now seen corresponding path program 1 times [2024-11-24 00:01:45,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:45,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216052418] [2024-11-24 00:01:45,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:45,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:45,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:45,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216052418] [2024-11-24 00:01:45,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216052418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:45,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:45,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:01:45,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296096705] [2024-11-24 00:01:45,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:45,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:01:45,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:45,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:01:45,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:45,270 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:45,501 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2024-11-24 00:01:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:01:45,502 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-24 00:01:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:45,504 INFO L225 Difference]: With dead ends: 133 [2024-11-24 00:01:45,504 INFO L226 Difference]: Without dead ends: 129 [2024-11-24 00:01:45,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:45,505 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 88 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:45,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 83 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-24 00:01:45,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-24 00:01:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 70 states have (on average 1.7857142857142858) internal successors, (125), 123 states have internal predecessors, (125), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 131 transitions. [2024-11-24 00:01:45,527 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 131 transitions. Word has length 14 [2024-11-24 00:01:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:45,532 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 131 transitions. [2024-11-24 00:01:45,532 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 131 transitions. [2024-11-24 00:01:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-24 00:01:45,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:45,533 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:45,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:01:45,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:45,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:45,534 INFO L85 PathProgramCache]: Analyzing trace with hash 149806906, now seen corresponding path program 1 times [2024-11-24 00:01:45,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:45,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454823982] [2024-11-24 00:01:45,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:45,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:45,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:45,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454823982] [2024-11-24 00:01:45,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454823982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:45,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:45,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:01:45,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859181486] [2024-11-24 00:01:45,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:45,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:01:45,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:45,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:01:45,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:45,664 INFO L87 Difference]: Start difference. First operand 129 states and 131 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:45,836 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2024-11-24 00:01:45,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:01:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-24 00:01:45,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:45,838 INFO L225 Difference]: With dead ends: 129 [2024-11-24 00:01:45,838 INFO L226 Difference]: Without dead ends: 125 [2024-11-24 00:01:45,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:45,839 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 87 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:45,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 83 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-24 00:01:45,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-24 00:01:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 119 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2024-11-24 00:01:45,852 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 15 [2024-11-24 00:01:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:45,853 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2024-11-24 00:01:45,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2024-11-24 00:01:45,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-24 00:01:45,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:45,854 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:45,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:01:45,854 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:45,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:45,855 INFO L85 PathProgramCache]: Analyzing trace with hash 349046831, now seen corresponding path program 1 times [2024-11-24 00:01:45,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:45,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411881371] [2024-11-24 00:01:45,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:45,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:45,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411881371] [2024-11-24 00:01:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411881371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:45,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086581100] [2024-11-24 00:01:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:45,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:45,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:45,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:45,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:45,941 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:46,254 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-11-24 00:01:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:01:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2024-11-24 00:01:46,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:46,256 INFO L225 Difference]: With dead ends: 125 [2024-11-24 00:01:46,256 INFO L226 Difference]: Without dead ends: 122 [2024-11-24 00:01:46,256 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 [2024-11-24 00:01:46,257 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 169 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:46,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 78 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:46,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-24 00:01:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-24 00:01:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 70 states have (on average 1.6857142857142857) internal successors, (118), 116 states have internal predecessors, (118), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2024-11-24 00:01:46,269 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 16 [2024-11-24 00:01:46,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:46,269 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2024-11-24 00:01:46,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:46,270 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2024-11-24 00:01:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-24 00:01:46,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:46,270 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:46,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:01:46,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:46,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2064450084, now seen corresponding path program 1 times [2024-11-24 00:01:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186967944] [2024-11-24 00:01:46,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:46,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:46,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186967944] [2024-11-24 00:01:46,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186967944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:46,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:46,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:46,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472835786] [2024-11-24 00:01:46,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:46,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:46,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:46,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:46,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:46,351 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:46,662 INFO L93 Difference]: Finished difference Result 122 states and 124 transitions. [2024-11-24 00:01:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:01:46,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-11-24 00:01:46,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:46,664 INFO L225 Difference]: With dead ends: 122 [2024-11-24 00:01:46,664 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 00:01:46,664 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 [2024-11-24 00:01:46,665 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 168 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:46,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 78 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 00:01:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-24 00:01:46,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 70 states have (on average 1.6428571428571428) internal successors, (115), 113 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2024-11-24 00:01:46,690 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 17 [2024-11-24 00:01:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:46,690 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2024-11-24 00:01:46,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:46,691 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2024-11-24 00:01:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-24 00:01:46,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:46,691 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:46,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:01:46,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:46,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:46,693 INFO L85 PathProgramCache]: Analyzing trace with hash 426556889, now seen corresponding path program 1 times [2024-11-24 00:01:46,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:46,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702773324] [2024-11-24 00:01:46,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:46,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:46,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398838590] [2024-11-24 00:01:46,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:46,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:46,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:46,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:46,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:01:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:46,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:01:46,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:46,786 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:46,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:46,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702773324] [2024-11-24 00:01:46,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:46,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398838590] [2024-11-24 00:01:46,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398838590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:46,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:46,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:01:46,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733694649] [2024-11-24 00:01:46,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:46,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:01:46,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:46,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:01:46,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:46,789 INFO L87 Difference]: Start difference. First operand 119 states and 121 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) [2024-11-24 00:01:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:46,898 INFO L93 Difference]: Finished difference Result 183 states and 188 transitions. [2024-11-24 00:01:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:01:46,899 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 [2024-11-24 00:01:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:46,900 INFO L225 Difference]: With dead ends: 183 [2024-11-24 00:01:46,900 INFO L226 Difference]: Without dead ends: 177 [2024-11-24 00:01:46,901 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 [2024-11-24 00:01:46,901 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 57 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:46,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 215 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:01:46,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-24 00:01:46,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2024-11-24 00:01:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 93 states have (on average 1.6451612903225807) internal successors, (153), 136 states have internal predecessors, (153), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:01:46,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 161 transitions. [2024-11-24 00:01:46,915 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 161 transitions. Word has length 18 [2024-11-24 00:01:46,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:46,916 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 161 transitions. [2024-11-24 00:01:46,916 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) [2024-11-24 00:01:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 161 transitions. [2024-11-24 00:01:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-24 00:01:46,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:46,917 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:46,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:01:47,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:47,121 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:47,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:47,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1899278971, now seen corresponding path program 1 times [2024-11-24 00:01:47,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:47,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240757822] [2024-11-24 00:01:47,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:47,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:47,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481946894] [2024-11-24 00:01:47,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:47,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:47,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:47,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:47,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:01:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:47,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:01:47,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:47,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:47,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240757822] [2024-11-24 00:01:47,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481946894] [2024-11-24 00:01:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481946894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:47,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:47,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:01:47,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587344315] [2024-11-24 00:01:47,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:47,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:01:47,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:47,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:01:47,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:47,245 INFO L87 Difference]: Start difference. First operand 143 states and 161 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (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) [2024-11-24 00:01:47,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:47,374 INFO L93 Difference]: Finished difference Result 239 states and 261 transitions. [2024-11-24 00:01:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:01:47,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (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 20 [2024-11-24 00:01:47,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:47,376 INFO L225 Difference]: With dead ends: 239 [2024-11-24 00:01:47,376 INFO L226 Difference]: Without dead ends: 233 [2024-11-24 00:01:47,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:01:47,377 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 87 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:47,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 213 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:01:47,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-24 00:01:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 191. [2024-11-24 00:01:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6571428571428573) internal successors, (232), 183 states have internal predecessors, (232), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:47,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 242 transitions. [2024-11-24 00:01:47,394 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 242 transitions. Word has length 20 [2024-11-24 00:01:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:47,394 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 242 transitions. [2024-11-24 00:01:47,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (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) [2024-11-24 00:01:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 242 transitions. [2024-11-24 00:01:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-24 00:01:47,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:47,395 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:47,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:01:47,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:47,596 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:47,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash -154007779, now seen corresponding path program 1 times [2024-11-24 00:01:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:47,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549034197] [2024-11-24 00:01:47,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923540773] [2024-11-24 00:01:47,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:47,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:47,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:01:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:47,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:01:47,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:47,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:47,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:47,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549034197] [2024-11-24 00:01:47,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:47,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923540773] [2024-11-24 00:01:47,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923540773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:47,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:47,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:47,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051190818] [2024-11-24 00:01:47,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:47,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:47,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:47,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:47,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:47,716 INFO L87 Difference]: Start difference. First operand 191 states and 242 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-24 00:01:47,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:47,959 INFO L93 Difference]: Finished difference Result 257 states and 311 transitions. [2024-11-24 00:01:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:47,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 22 [2024-11-24 00:01:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:47,961 INFO L225 Difference]: With dead ends: 257 [2024-11-24 00:01:47,961 INFO L226 Difference]: Without dead ends: 255 [2024-11-24 00:01:47,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:47,963 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 121 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:47,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 228 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:47,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-24 00:01:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 192. [2024-11-24 00:01:47,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 141 states have (on average 1.6453900709219857) internal successors, (232), 184 states have internal predecessors, (232), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:47,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 242 transitions. [2024-11-24 00:01:47,979 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 242 transitions. Word has length 22 [2024-11-24 00:01:47,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:47,979 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 242 transitions. [2024-11-24 00:01:47,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-24 00:01:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 242 transitions. [2024-11-24 00:01:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-24 00:01:47,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:47,980 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] [2024-11-24 00:01:47,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:48,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:48,181 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:48,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:48,182 INFO L85 PathProgramCache]: Analyzing trace with hash -479273790, now seen corresponding path program 1 times [2024-11-24 00:01:48,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:48,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536178278] [2024-11-24 00:01:48,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:48,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:48,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466615302] [2024-11-24 00:01:48,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:48,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:48,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:48,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:01:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:48,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:01:48,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:48,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:48,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:48,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536178278] [2024-11-24 00:01:48,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:48,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466615302] [2024-11-24 00:01:48,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466615302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:48,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:48,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536123529] [2024-11-24 00:01:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:48,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:48,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:48,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:48,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:48,297 INFO L87 Difference]: Start difference. First operand 192 states and 242 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-24 00:01:48,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:48,535 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2024-11-24 00:01:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:48,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 23 [2024-11-24 00:01:48,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:48,537 INFO L225 Difference]: With dead ends: 256 [2024-11-24 00:01:48,537 INFO L226 Difference]: Without dead ends: 254 [2024-11-24 00:01:48,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:48,538 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 119 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:48,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 231 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-24 00:01:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 193. [2024-11-24 00:01:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.6338028169014085) internal successors, (232), 185 states have internal predecessors, (232), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 242 transitions. [2024-11-24 00:01:48,552 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 242 transitions. Word has length 23 [2024-11-24 00:01:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:48,553 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 242 transitions. [2024-11-24 00:01:48,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-24 00:01:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 242 transitions. [2024-11-24 00:01:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-24 00:01:48,554 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:48,554 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] [2024-11-24 00:01:48,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:48,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:48,755 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:48,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:48,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1972585537, now seen corresponding path program 1 times [2024-11-24 00:01:48,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:48,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304969553] [2024-11-24 00:01:48,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:48,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:48,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210143010] [2024-11-24 00:01:48,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:48,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:48,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:48,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:01:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:48,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:01:48,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:48,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:48,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:48,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:48,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304969553] [2024-11-24 00:01:48,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:48,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210143010] [2024-11-24 00:01:48,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210143010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:48,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:48,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505968986] [2024-11-24 00:01:48,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:48,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:48,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:48,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:48,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:48,876 INFO L87 Difference]: Start difference. First operand 193 states and 242 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-24 00:01:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:49,103 INFO L93 Difference]: Finished difference Result 252 states and 270 transitions. [2024-11-24 00:01:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:49,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 24 [2024-11-24 00:01:49,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:49,105 INFO L225 Difference]: With dead ends: 252 [2024-11-24 00:01:49,105 INFO L226 Difference]: Without dead ends: 250 [2024-11-24 00:01:49,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:49,107 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 166 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:49,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 255 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-24 00:01:49,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 193. [2024-11-24 00:01:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.6126760563380282) internal successors, (229), 185 states have internal predecessors, (229), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 239 transitions. [2024-11-24 00:01:49,128 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 239 transitions. Word has length 24 [2024-11-24 00:01:49,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:49,128 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 239 transitions. [2024-11-24 00:01:49,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-24 00:01:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 239 transitions. [2024-11-24 00:01:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-24 00:01:49,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:49,131 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] [2024-11-24 00:01:49,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:49,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:49,332 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:49,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:49,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1020609436, now seen corresponding path program 1 times [2024-11-24 00:01:49,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:49,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141686688] [2024-11-24 00:01:49,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:49,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:49,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431472521] [2024-11-24 00:01:49,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:49,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:49,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:49,350 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:49,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:01:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:49,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:01:49,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:49,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:49,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:49,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141686688] [2024-11-24 00:01:49,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:49,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431472521] [2024-11-24 00:01:49,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431472521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:49,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:49,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:49,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67558024] [2024-11-24 00:01:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:49,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:49,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:49,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:49,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:49,432 INFO L87 Difference]: Start difference. First operand 193 states and 239 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-24 00:01:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:49,641 INFO L93 Difference]: Finished difference Result 250 states and 267 transitions. [2024-11-24 00:01:49,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:49,641 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), 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 25 [2024-11-24 00:01:49,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:49,643 INFO L225 Difference]: With dead ends: 250 [2024-11-24 00:01:49,643 INFO L226 Difference]: Without dead ends: 248 [2024-11-24 00:01:49,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:49,644 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 163 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:49,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 257 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:49,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-24 00:01:49,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 193. [2024-11-24 00:01:49,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.591549295774648) internal successors, (226), 185 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 236 transitions. [2024-11-24 00:01:49,656 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 236 transitions. Word has length 25 [2024-11-24 00:01:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:49,657 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 236 transitions. [2024-11-24 00:01:49,657 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), 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) [2024-11-24 00:01:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 236 transitions. [2024-11-24 00:01:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 00:01:49,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:49,658 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] [2024-11-24 00:01:49,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:49,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:49,866 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:49,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:49,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1574121375, now seen corresponding path program 1 times [2024-11-24 00:01:49,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751713417] [2024-11-24 00:01:49,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:49,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081990413] [2024-11-24 00:01:49,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:49,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:49,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:49,897 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:49,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:01:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:49,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:01:49,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:49,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:49,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:49,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751713417] [2024-11-24 00:01:49,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:49,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081990413] [2024-11-24 00:01:49,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081990413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:49,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:49,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:01:49,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672978074] [2024-11-24 00:01:49,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:49,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:01:49,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:49,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:01:49,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:49,999 INFO L87 Difference]: Start difference. First operand 193 states and 236 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-24 00:01:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:50,328 INFO L93 Difference]: Finished difference Result 251 states and 299 transitions. [2024-11-24 00:01:50,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:01:50,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 26 [2024-11-24 00:01:50,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:50,331 INFO L225 Difference]: With dead ends: 251 [2024-11-24 00:01:50,331 INFO L226 Difference]: Without dead ends: 249 [2024-11-24 00:01:50,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:50,332 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 108 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:50,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 294 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-24 00:01:50,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 196. [2024-11-24 00:01:50,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 145 states have (on average 1.5724137931034483) internal successors, (228), 188 states have internal predecessors, (228), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 238 transitions. [2024-11-24 00:01:50,348 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 238 transitions. Word has length 26 [2024-11-24 00:01:50,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:50,348 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 238 transitions. [2024-11-24 00:01:50,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-24 00:01:50,348 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 238 transitions. [2024-11-24 00:01:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-24 00:01:50,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:50,351 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] [2024-11-24 00:01:50,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 00:01:50,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 00:01:50,556 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:50,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:50,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1553122298, now seen corresponding path program 1 times [2024-11-24 00:01:50,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:50,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608304145] [2024-11-24 00:01:50,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:50,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:50,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082176686] [2024-11-24 00:01:50,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:50,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:50,573 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:50,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:01:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:50,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:01:50,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:50,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:50,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608304145] [2024-11-24 00:01:50,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:50,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082176686] [2024-11-24 00:01:50,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082176686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:50,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:50,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:01:50,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655275065] [2024-11-24 00:01:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:50,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:01:50,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:50,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:01:50,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:50,711 INFO L87 Difference]: Start difference. First operand 196 states and 238 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-24 00:01:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:50,953 INFO L93 Difference]: Finished difference Result 251 states and 266 transitions. [2024-11-24 00:01:50,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:01:50,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 27 [2024-11-24 00:01:50,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:50,956 INFO L225 Difference]: With dead ends: 251 [2024-11-24 00:01:50,956 INFO L226 Difference]: Without dead ends: 249 [2024-11-24 00:01:50,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:50,957 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 225 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:50,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 257 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:01:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-24 00:01:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 196. [2024-11-24 00:01:50,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 145 states have (on average 1.5517241379310345) internal successors, (225), 188 states have internal predecessors, (225), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 235 transitions. [2024-11-24 00:01:50,983 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 235 transitions. Word has length 27 [2024-11-24 00:01:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:50,983 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 235 transitions. [2024-11-24 00:01:50,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-24 00:01:50,984 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 235 transitions. [2024-11-24 00:01:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-24 00:01:50,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:50,984 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] [2024-11-24 00:01:50,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-24 00:01:51,189 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:51,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:51,190 INFO L85 PathProgramCache]: Analyzing trace with hash -902150909, now seen corresponding path program 1 times [2024-11-24 00:01:51,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:51,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413204842] [2024-11-24 00:01:51,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:51,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244567223] [2024-11-24 00:01:51,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:51,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:51,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:51,211 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:51,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:01:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:51,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:01:51,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:51,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:51,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413204842] [2024-11-24 00:01:51,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244567223] [2024-11-24 00:01:51,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244567223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:51,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:51,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:01:51,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933712246] [2024-11-24 00:01:51,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:51,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:01:51,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:51,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:01:51,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:01:51,460 INFO L87 Difference]: Start difference. First operand 196 states and 235 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-24 00:01:51,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:51,948 INFO L93 Difference]: Finished difference Result 246 states and 293 transitions. [2024-11-24 00:01:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:01:51,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 28 [2024-11-24 00:01:51,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:51,950 INFO L225 Difference]: With dead ends: 246 [2024-11-24 00:01:51,950 INFO L226 Difference]: Without dead ends: 244 [2024-11-24 00:01:51,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:01:51,951 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 242 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:51,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 211 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:01:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-24 00:01:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 198. [2024-11-24 00:01:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.5374149659863945) internal successors, (226), 190 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 236 transitions. [2024-11-24 00:01:51,966 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 236 transitions. Word has length 28 [2024-11-24 00:01:51,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:51,967 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 236 transitions. [2024-11-24 00:01:51,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-24 00:01:51,968 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 236 transitions. [2024-11-24 00:01:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-24 00:01:51,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:51,970 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] [2024-11-24 00:01:51,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 00:01:52,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:01:52,173 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:52,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:52,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2098092968, now seen corresponding path program 1 times [2024-11-24 00:01:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:52,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539723398] [2024-11-24 00:01:52,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:52,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:01:52,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539723398] [2024-11-24 00:01:52,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539723398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:01:52,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538969823] [2024-11-24 00:01:52,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:52,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:52,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:52,388 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:52,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 00:01:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:52,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:01:52,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:52,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:52,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538969823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:52,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:01:52,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-24 00:01:52,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33352091] [2024-11-24 00:01:52,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:52,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:01:52,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:52,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:01:52,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:01:52,638 INFO L87 Difference]: Start difference. First operand 198 states and 236 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-24 00:01:53,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:53,082 INFO L93 Difference]: Finished difference Result 246 states and 291 transitions. [2024-11-24 00:01:53,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:01:53,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 29 [2024-11-24 00:01:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:53,084 INFO L225 Difference]: With dead ends: 246 [2024-11-24 00:01:53,084 INFO L226 Difference]: Without dead ends: 244 [2024-11-24 00:01:53,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:01:53,086 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 241 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:53,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 191 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:01:53,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-24 00:01:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 199. [2024-11-24 00:01:53,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 148 states have (on average 1.527027027027027) internal successors, (226), 191 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 236 transitions. [2024-11-24 00:01:53,099 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 236 transitions. Word has length 29 [2024-11-24 00:01:53,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:53,099 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 236 transitions. [2024-11-24 00:01:53,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-24 00:01:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 236 transitions. [2024-11-24 00:01:53,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-24 00:01:53,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:53,100 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, 1, 1] [2024-11-24 00:01:53,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 00:01:53,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:01:53,305 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:53,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:53,305 INFO L85 PathProgramCache]: Analyzing trace with hash -371372473, now seen corresponding path program 1 times [2024-11-24 00:01:53,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:53,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516956672] [2024-11-24 00:01:53,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:01:53,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:53,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516956672] [2024-11-24 00:01:53,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516956672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:53,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:53,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:01:53,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594281550] [2024-11-24 00:01:53,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:53,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:01:53,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:53,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:01:53,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:01:53,462 INFO L87 Difference]: Start difference. First operand 199 states and 236 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:01:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:53,795 INFO L93 Difference]: Finished difference Result 199 states and 236 transitions. [2024-11-24 00:01:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:01:53,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-24 00:01:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:53,797 INFO L225 Difference]: With dead ends: 199 [2024-11-24 00:01:53,797 INFO L226 Difference]: Without dead ends: 197 [2024-11-24 00:01:53,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:53,798 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 117 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:53,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 200 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:53,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-24 00:01:53,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-24 00:01:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 148 states have (on average 1.4932432432432432) internal successors, (221), 189 states have internal predecessors, (221), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 231 transitions. [2024-11-24 00:01:53,810 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 231 transitions. Word has length 32 [2024-11-24 00:01:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:53,811 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 231 transitions. [2024-11-24 00:01:53,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-24 00:01:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 231 transitions. [2024-11-24 00:01:53,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-24 00:01:53,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:53,812 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, 1, 1, 1] [2024-11-24 00:01:53,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:01:53,812 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:53,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1372355308, now seen corresponding path program 1 times [2024-11-24 00:01:53,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:53,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448250068] [2024-11-24 00:01:53,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:53,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069515752] [2024-11-24 00:01:53,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:53,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:53,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:53,833 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:53,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 00:01:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:53,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:01:53,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:54,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:54,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:54,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:54,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448250068] [2024-11-24 00:01:54,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:54,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069515752] [2024-11-24 00:01:54,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069515752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:54,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:54,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:01:54,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565449886] [2024-11-24 00:01:54,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:54,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:01:54,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:54,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:01:54,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:54,148 INFO L87 Difference]: Start difference. First operand 197 states and 231 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:54,638 INFO L93 Difference]: Finished difference Result 238 states and 283 transitions. [2024-11-24 00:01:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:01:54,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2024-11-24 00:01:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:54,643 INFO L225 Difference]: With dead ends: 238 [2024-11-24 00:01:54,643 INFO L226 Difference]: Without dead ends: 236 [2024-11-24 00:01:54,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:01:54,644 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 285 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:54,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 123 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:01:54,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-24 00:01:54,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 201. [2024-11-24 00:01:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 152 states have (on average 1.4736842105263157) internal successors, (224), 193 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 234 transitions. [2024-11-24 00:01:54,659 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 234 transitions. Word has length 33 [2024-11-24 00:01:54,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:54,660 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 234 transitions. [2024-11-24 00:01:54,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:01:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 234 transitions. [2024-11-24 00:01:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-24 00:01:54,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:54,662 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, 1, 1, 1, 1] [2024-11-24 00:01:54,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:54,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 00:01:54,865 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:54,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -406658327, now seen corresponding path program 1 times [2024-11-24 00:01:54,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:54,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167457994] [2024-11-24 00:01:54,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:54,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:54,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:54,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167457994] [2024-11-24 00:01:54,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167457994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:54,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:54,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:54,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414431038] [2024-11-24 00:01:54,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:54,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:54,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:54,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:54,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:54,963 INFO L87 Difference]: Start difference. First operand 201 states and 234 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-24 00:01:55,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:55,351 INFO L93 Difference]: Finished difference Result 220 states and 259 transitions. [2024-11-24 00:01:55,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:55,352 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), 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 34 [2024-11-24 00:01:55,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:55,353 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:01:55,353 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:01:55,354 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 [2024-11-24 00:01:55,354 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 92 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:55,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 146 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:01:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:01:55,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2024-11-24 00:01:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 153 states have (on average 1.4640522875816993) internal successors, (224), 194 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:55,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 234 transitions. [2024-11-24 00:01:55,369 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 234 transitions. Word has length 34 [2024-11-24 00:01:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:55,369 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 234 transitions. [2024-11-24 00:01:55,369 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), 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) [2024-11-24 00:01:55,369 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 234 transitions. [2024-11-24 00:01:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-24 00:01:55,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:55,370 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, 1, 1, 1, 1, 1] [2024-11-24 00:01:55,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:01:55,370 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:55,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash 278493838, now seen corresponding path program 1 times [2024-11-24 00:01:55,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:55,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492853704] [2024-11-24 00:01:55,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:55,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:55,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:55,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492853704] [2024-11-24 00:01:55,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492853704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:55,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:55,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464542521] [2024-11-24 00:01:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:55,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:55,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:55,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:55,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:55,467 INFO L87 Difference]: Start difference. First operand 202 states and 234 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-24 00:01:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:55,864 INFO L93 Difference]: Finished difference Result 220 states and 257 transitions. [2024-11-24 00:01:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:01:55,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 35 [2024-11-24 00:01:55,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:55,866 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:01:55,866 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:01:55,866 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 [2024-11-24 00:01:55,867 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 67 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:55,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 159 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:01:55,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:01:55,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 203. [2024-11-24 00:01:55,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 154 states have (on average 1.4545454545454546) internal successors, (224), 195 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:55,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 234 transitions. [2024-11-24 00:01:55,879 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 234 transitions. Word has length 35 [2024-11-24 00:01:55,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:55,880 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 234 transitions. [2024-11-24 00:01:55,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-24 00:01:55,880 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 234 transitions. [2024-11-24 00:01:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-24 00:01:55,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:55,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:55,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:01:55,882 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:55,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1617779789, now seen corresponding path program 1 times [2024-11-24 00:01:55,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861195529] [2024-11-24 00:01:55,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:55,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861195529] [2024-11-24 00:01:55,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861195529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:55,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:55,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:01:55,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499190932] [2024-11-24 00:01:55,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:55,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:01:55,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:56,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:01:56,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:56,001 INFO L87 Difference]: Start difference. First operand 203 states and 234 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:56,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:56,371 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2024-11-24 00:01:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:56,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-11-24 00:01:56,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:56,373 INFO L225 Difference]: With dead ends: 220 [2024-11-24 00:01:56,373 INFO L226 Difference]: Without dead ends: 218 [2024-11-24 00:01:56,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:56,374 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 304 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:56,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 128 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-24 00:01:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 212. [2024-11-24 00:01:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4355828220858895) internal successors, (234), 204 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 244 transitions. [2024-11-24 00:01:56,388 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 244 transitions. Word has length 45 [2024-11-24 00:01:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:56,389 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 244 transitions. [2024-11-24 00:01:56,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 244 transitions. [2024-11-24 00:01:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:01:56,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:56,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:56,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:01:56,391 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:56,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1388434197, now seen corresponding path program 1 times [2024-11-24 00:01:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:56,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251526077] [2024-11-24 00:01:56,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:56,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:56,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:56,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:56,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251526077] [2024-11-24 00:01:56,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251526077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:56,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:56,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:56,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156531403] [2024-11-24 00:01:56,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:56,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:56,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:56,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:56,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:56,489 INFO L87 Difference]: Start difference. First operand 212 states and 244 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, (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) [2024-11-24 00:01:56,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:56,638 INFO L93 Difference]: Finished difference Result 212 states and 244 transitions. [2024-11-24 00:01:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:01:56,639 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, (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 46 [2024-11-24 00:01:56,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:56,640 INFO L225 Difference]: With dead ends: 212 [2024-11-24 00:01:56,640 INFO L226 Difference]: Without dead ends: 211 [2024-11-24 00:01:56,641 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 [2024-11-24 00:01:56,642 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 65 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:56,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 149 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:01:56,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-24 00:01:56,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-24 00:01:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 163 states have (on average 1.4233128834355828) internal successors, (232), 203 states have internal predecessors, (232), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 242 transitions. [2024-11-24 00:01:56,655 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 242 transitions. Word has length 46 [2024-11-24 00:01:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:56,655 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 242 transitions. [2024-11-24 00:01:56,655 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, (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) [2024-11-24 00:01:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 242 transitions. [2024-11-24 00:01:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:01:56,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:56,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:56,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:01:56,657 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:56,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1449561769, now seen corresponding path program 1 times [2024-11-24 00:01:56,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:56,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379617622] [2024-11-24 00:01:56,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:56,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:56,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379617622] [2024-11-24 00:01:56,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379617622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:56,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:56,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:56,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471035853] [2024-11-24 00:01:56,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:56,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:56,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:56,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:56,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:56,783 INFO L87 Difference]: Start difference. First operand 211 states and 242 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-24 00:01:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:56,898 INFO L93 Difference]: Finished difference Result 226 states and 259 transitions. [2024-11-24 00:01:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:01:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 48 [2024-11-24 00:01:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:56,900 INFO L225 Difference]: With dead ends: 226 [2024-11-24 00:01:56,900 INFO L226 Difference]: Without dead ends: 224 [2024-11-24 00:01:56,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:56,902 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 17 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:56,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 310 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:01:56,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-24 00:01:56,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 221. [2024-11-24 00:01:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 173 states have (on average 1.416184971098266) internal successors, (245), 213 states have internal predecessors, (245), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 255 transitions. [2024-11-24 00:01:56,918 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 255 transitions. Word has length 48 [2024-11-24 00:01:56,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:56,918 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 255 transitions. [2024-11-24 00:01:56,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-24 00:01:56,918 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 255 transitions. [2024-11-24 00:01:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-24 00:01:56,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:56,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:56,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:01:56,919 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:56,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:56,920 INFO L85 PathProgramCache]: Analyzing trace with hash -868625567, now seen corresponding path program 1 times [2024-11-24 00:01:56,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:56,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915692026] [2024-11-24 00:01:56,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:56,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:57,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:57,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915692026] [2024-11-24 00:01:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915692026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:57,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:01:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493004238] [2024-11-24 00:01:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:57,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:01:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:57,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:01:57,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:01:57,036 INFO L87 Difference]: Start difference. First operand 221 states and 255 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:57,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:57,379 INFO L93 Difference]: Finished difference Result 222 states and 255 transitions. [2024-11-24 00:01:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:01:57,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2024-11-24 00:01:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:57,381 INFO L225 Difference]: With dead ends: 222 [2024-11-24 00:01:57,381 INFO L226 Difference]: Without dead ends: 221 [2024-11-24 00:01:57,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:01:57,382 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 140 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:57,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 169 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:57,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-24 00:01:57,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2024-11-24 00:01:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 173 states have (on average 1.4104046242774566) internal successors, (244), 213 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 254 transitions. [2024-11-24 00:01:57,397 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 254 transitions. Word has length 48 [2024-11-24 00:01:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:57,397 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 254 transitions. [2024-11-24 00:01:57,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:01:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 254 transitions. [2024-11-24 00:01:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-24 00:01:57,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:57,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:57,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:01:57,399 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:57,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1157588681, now seen corresponding path program 1 times [2024-11-24 00:01:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:57,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657325819] [2024-11-24 00:01:57,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:01:57,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:57,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657325819] [2024-11-24 00:01:57,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657325819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:57,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:57,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:01:57,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416148140] [2024-11-24 00:01:57,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:57,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:01:57,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:57,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:01:57,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:57,485 INFO L87 Difference]: Start difference. First operand 221 states and 254 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, (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) [2024-11-24 00:01:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:57,569 INFO L93 Difference]: Finished difference Result 258 states and 269 transitions. [2024-11-24 00:01:57,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:01:57,570 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, (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 49 [2024-11-24 00:01:57,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:57,571 INFO L225 Difference]: With dead ends: 258 [2024-11-24 00:01:57,571 INFO L226 Difference]: Without dead ends: 256 [2024-11-24 00:01:57,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:01:57,572 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 56 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:57,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 337 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:01:57,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-24 00:01:57,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2024-11-24 00:01:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.3922651933701657) internal successors, (252), 221 states have internal predecessors, (252), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 262 transitions. [2024-11-24 00:01:57,590 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 262 transitions. Word has length 49 [2024-11-24 00:01:57,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:57,590 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 262 transitions. [2024-11-24 00:01:57,590 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, (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) [2024-11-24 00:01:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 262 transitions. [2024-11-24 00:01:57,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-24 00:01:57,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:57,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:57,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:01:57,591 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:57,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1459452084, now seen corresponding path program 1 times [2024-11-24 00:01:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:57,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697701342] [2024-11-24 00:01:57,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:57,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:57,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886062684] [2024-11-24 00:01:57,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:57,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:57,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:57,623 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:57,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 00:01:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:57,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:01:57,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:01:57,998 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:01:57,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:57,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697701342] [2024-11-24 00:01:57,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:57,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886062684] [2024-11-24 00:01:57,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886062684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:01:57,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:01:57,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:01:57,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055812085] [2024-11-24 00:01:57,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:01:58,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:01:58,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:58,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:01:58,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:01:58,001 INFO L87 Difference]: Start difference. First operand 229 states and 262 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:01:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:58,371 INFO L93 Difference]: Finished difference Result 229 states and 262 transitions. [2024-11-24 00:01:58,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:01:58,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-11-24 00:01:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:58,373 INFO L225 Difference]: With dead ends: 229 [2024-11-24 00:01:58,373 INFO L226 Difference]: Without dead ends: 226 [2024-11-24 00:01:58,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:01:58,374 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 105 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:58,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 339 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-24 00:01:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-24 00:01:58,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 181 states have (on average 1.3591160220994476) internal successors, (246), 218 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:01:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 256 transitions. [2024-11-24 00:01:58,393 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 256 transitions. Word has length 50 [2024-11-24 00:01:58,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:58,393 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 256 transitions. [2024-11-24 00:01:58,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:01:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 256 transitions. [2024-11-24 00:01:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 00:01:58,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:58,394 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:58,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-24 00:01:58,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 00:01:58,595 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:01:58,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:01:58,596 INFO L85 PathProgramCache]: Analyzing trace with hash 2001625707, now seen corresponding path program 1 times [2024-11-24 00:01:58,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:01:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563158446] [2024-11-24 00:01:58,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:01:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:01:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530830045] [2024-11-24 00:01:58,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:01:58,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:01:58,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:01:58,624 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:01:58,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 00:01:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:01:58,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:01:58,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:01:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:01:58,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:01:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:01:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563158446] [2024-11-24 00:01:59,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:01:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530830045] [2024-11-24 00:01:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530830045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:01:59,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:01:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-24 00:01:59,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497183735] [2024-11-24 00:01:59,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:01:59,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:01:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:01:59,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:01:59,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:01:59,472 INFO L87 Difference]: Start difference. First operand 226 states and 256 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:01:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:01:59,834 INFO L93 Difference]: Finished difference Result 316 states and 373 transitions. [2024-11-24 00:01:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:01:59,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2024-11-24 00:01:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:01:59,836 INFO L225 Difference]: With dead ends: 316 [2024-11-24 00:01:59,836 INFO L226 Difference]: Without dead ends: 314 [2024-11-24 00:01:59,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:01:59,837 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 162 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:01:59,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 307 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:01:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-24 00:01:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 274. [2024-11-24 00:01:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 227 states have (on average 1.39647577092511) internal successors, (317), 264 states have internal predecessors, (317), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:01:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 331 transitions. [2024-11-24 00:01:59,858 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 331 transitions. Word has length 51 [2024-11-24 00:01:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:01:59,858 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 331 transitions. [2024-11-24 00:01:59,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:01:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 331 transitions. [2024-11-24 00:01:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-24 00:01:59,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:01:59,859 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:01:59,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 00:02:00,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 00:02:00,064 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:00,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:00,065 INFO L85 PathProgramCache]: Analyzing trace with hash -894443760, now seen corresponding path program 1 times [2024-11-24 00:02:00,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:00,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051275493] [2024-11-24 00:02:00,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:00,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:00,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010097750] [2024-11-24 00:02:00,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:00,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:00,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:00,093 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:00,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 00:02:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:00,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 00:02:00,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:00,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:00,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:00,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051275493] [2024-11-24 00:02:00,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:00,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010097750] [2024-11-24 00:02:00,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010097750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:00,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:00,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 00:02:00,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330769999] [2024-11-24 00:02:00,830 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:00,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:02:00,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:00,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:02:00,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:02:00,832 INFO L87 Difference]: Start difference. First operand 274 states and 331 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:02:01,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:01,524 INFO L93 Difference]: Finished difference Result 274 states and 331 transitions. [2024-11-24 00:02:01,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:02:01,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2024-11-24 00:02:01,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:01,526 INFO L225 Difference]: With dead ends: 274 [2024-11-24 00:02:01,526 INFO L226 Difference]: Without dead ends: 272 [2024-11-24 00:02:01,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:02:01,527 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 173 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:01,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 212 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:02:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-24 00:02:01,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-24 00:02:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 227 states have (on average 1.3700440528634361) internal successors, (311), 262 states have internal predecessors, (311), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:02:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 325 transitions. [2024-11-24 00:02:01,548 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 325 transitions. Word has length 54 [2024-11-24 00:02:01,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:01,548 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 325 transitions. [2024-11-24 00:02:01,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:02:01,549 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 325 transitions. [2024-11-24 00:02:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-24 00:02:01,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:01,552 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:01,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:01,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 00:02:01,754 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:01,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:01,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1957952721, now seen corresponding path program 1 times [2024-11-24 00:02:01,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:01,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768276116] [2024-11-24 00:02:01,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:01,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:01,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248146376] [2024-11-24 00:02:01,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:01,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:01,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:01,778 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:01,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 00:02:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:01,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:02:01,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:02,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:03,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:03,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768276116] [2024-11-24 00:02:03,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:03,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248146376] [2024-11-24 00:02:03,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248146376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:03,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:03,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-24 00:02:03,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101820458] [2024-11-24 00:02:03,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:03,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:02:03,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:03,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:02:03,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:02:03,191 INFO L87 Difference]: Start difference. First operand 272 states and 325 transitions. Second operand has 17 states, 16 states have (on average 5.5625) internal successors, (89), 17 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:07,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:07,041 INFO L93 Difference]: Finished difference Result 416 states and 502 transitions. [2024-11-24 00:02:07,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 00:02:07,042 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5625) internal successors, (89), 17 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 55 [2024-11-24 00:02:07,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:07,044 INFO L225 Difference]: With dead ends: 416 [2024-11-24 00:02:07,045 INFO L226 Difference]: Without dead ends: 388 [2024-11-24 00:02:07,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=262, Invalid=928, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:02:07,046 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 615 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:07,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 369 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:02:07,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-24 00:02:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 297. [2024-11-24 00:02:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 251 states have (on average 1.3745019920318724) internal successors, (345), 286 states have internal predecessors, (345), 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) [2024-11-24 00:02:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 361 transitions. [2024-11-24 00:02:07,071 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 361 transitions. Word has length 55 [2024-11-24 00:02:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:07,072 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 361 transitions. [2024-11-24 00:02:07,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5625) internal successors, (89), 17 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 361 transitions. [2024-11-24 00:02:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 00:02:07,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:07,073 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:07,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:07,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-24 00:02:07,274 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:07,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:07,275 INFO L85 PathProgramCache]: Analyzing trace with hash -626154564, now seen corresponding path program 1 times [2024-11-24 00:02:07,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:07,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934753513] [2024-11-24 00:02:07,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:07,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935100060] [2024-11-24 00:02:07,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:07,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:07,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:07,303 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:07,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-24 00:02:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:07,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:02:07,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:07,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:07,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934753513] [2024-11-24 00:02:07,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935100060] [2024-11-24 00:02:07,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935100060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:07,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:07,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-24 00:02:07,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808645571] [2024-11-24 00:02:07,878 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:07,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:02:07,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:07,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:02:07,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:02:07,879 INFO L87 Difference]: Start difference. First operand 297 states and 361 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-11-24 00:02:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:08,275 INFO L93 Difference]: Finished difference Result 307 states and 364 transitions. [2024-11-24 00:02:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:02:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 56 [2024-11-24 00:02:08,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:08,278 INFO L225 Difference]: With dead ends: 307 [2024-11-24 00:02:08,278 INFO L226 Difference]: Without dead ends: 303 [2024-11-24 00:02:08,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:08,279 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 186 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:08,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 301 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:02:08,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-24 00:02:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 293. [2024-11-24 00:02:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 251 states have (on average 1.350597609561753) internal successors, (339), 282 states have internal predecessors, (339), 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) [2024-11-24 00:02:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 355 transitions. [2024-11-24 00:02:08,312 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 355 transitions. Word has length 56 [2024-11-24 00:02:08,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:08,312 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 355 transitions. [2024-11-24 00:02:08,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-11-24 00:02:08,313 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 355 transitions. [2024-11-24 00:02:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 00:02:08,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:08,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:08,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:08,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 00:02:08,518 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:08,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2064045055, now seen corresponding path program 1 times [2024-11-24 00:02:08,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:08,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049049344] [2024-11-24 00:02:08,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:08,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762391562] [2024-11-24 00:02:08,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:08,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:08,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:08,549 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:08,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-24 00:02:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:08,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:02:08,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:09,049 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:09,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:09,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049049344] [2024-11-24 00:02:09,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:09,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762391562] [2024-11-24 00:02:09,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762391562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:09,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:09,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-24 00:02:09,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919170457] [2024-11-24 00:02:09,536 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:09,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:02:09,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:09,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:02:09,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:02:09,538 INFO L87 Difference]: Start difference. First operand 293 states and 355 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:02:10,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:10,059 INFO L93 Difference]: Finished difference Result 375 states and 447 transitions. [2024-11-24 00:02:10,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:02:10,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2024-11-24 00:02:10,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:10,062 INFO L225 Difference]: With dead ends: 375 [2024-11-24 00:02:10,062 INFO L226 Difference]: Without dead ends: 373 [2024-11-24 00:02:10,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:02:10,063 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 218 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:10,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 411 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:02:10,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-24 00:02:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 331. [2024-11-24 00:02:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 288 states have (on average 1.3784722222222223) internal successors, (397), 319 states have internal predecessors, (397), 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) [2024-11-24 00:02:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 415 transitions. [2024-11-24 00:02:10,090 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 415 transitions. Word has length 57 [2024-11-24 00:02:10,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:10,090 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 415 transitions. [2024-11-24 00:02:10,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:02:10,091 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 415 transitions. [2024-11-24 00:02:10,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 00:02:10,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:10,091 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:10,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-24 00:02:10,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:10,296 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:10,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 581400276, now seen corresponding path program 1 times [2024-11-24 00:02:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984277126] [2024-11-24 00:02:10,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:10,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401624345] [2024-11-24 00:02:10,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:10,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:10,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:10,316 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:10,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-24 00:02:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:10,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:02:10,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:10,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:10,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984277126] [2024-11-24 00:02:10,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:10,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401624345] [2024-11-24 00:02:10,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401624345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:10,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:10,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2024-11-24 00:02:10,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205077761] [2024-11-24 00:02:10,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:10,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:02:10,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:10,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:02:10,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:02:10,567 INFO L87 Difference]: Start difference. First operand 331 states and 415 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 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) [2024-11-24 00:02:10,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:10,858 INFO L93 Difference]: Finished difference Result 372 states and 442 transitions. [2024-11-24 00:02:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:02:10,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 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 58 [2024-11-24 00:02:10,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:10,861 INFO L225 Difference]: With dead ends: 372 [2024-11-24 00:02:10,861 INFO L226 Difference]: Without dead ends: 370 [2024-11-24 00:02:10,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:02:10,862 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 163 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:10,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 298 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:02:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-24 00:02:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 331. [2024-11-24 00:02:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 288 states have (on average 1.3645833333333333) internal successors, (393), 319 states have internal predecessors, (393), 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) [2024-11-24 00:02:10,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 411 transitions. [2024-11-24 00:02:10,899 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 411 transitions. Word has length 58 [2024-11-24 00:02:10,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:10,899 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 411 transitions. [2024-11-24 00:02:10,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 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) [2024-11-24 00:02:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 411 transitions. [2024-11-24 00:02:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:10,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:10,900 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:10,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:11,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-24 00:02:11,104 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:11,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:11,104 INFO L85 PathProgramCache]: Analyzing trace with hash 379919030, now seen corresponding path program 1 times [2024-11-24 00:02:11,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582168838] [2024-11-24 00:02:11,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:11,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1872800575] [2024-11-24 00:02:11,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:11,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:11,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:11,134 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:11,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-24 00:02:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:11,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:02:11,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:11,971 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:12,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:12,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582168838] [2024-11-24 00:02:12,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:12,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872800575] [2024-11-24 00:02:12,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872800575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:12,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:12,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-24 00:02:12,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248914423] [2024-11-24 00:02:12,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:12,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:02:12,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:12,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:02:12,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:02:12,411 INFO L87 Difference]: Start difference. First operand 331 states and 411 transitions. Second operand has 19 states, 18 states have (on average 5.333333333333333) internal successors, (96), 19 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:14,987 INFO L93 Difference]: Finished difference Result 375 states and 457 transitions. [2024-11-24 00:02:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 00:02:14,988 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.333333333333333) internal successors, (96), 19 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 60 [2024-11-24 00:02:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:14,990 INFO L225 Difference]: With dead ends: 375 [2024-11-24 00:02:14,990 INFO L226 Difference]: Without dead ends: 373 [2024-11-24 00:02:14,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=367, Invalid=1115, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 00:02:14,991 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 530 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:14,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 453 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:02:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-24 00:02:15,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 342. [2024-11-24 00:02:15,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 299 states have (on average 1.3411371237458194) internal successors, (401), 330 states have internal predecessors, (401), 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) [2024-11-24 00:02:15,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 419 transitions. [2024-11-24 00:02:15,020 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 419 transitions. Word has length 60 [2024-11-24 00:02:15,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:15,021 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 419 transitions. [2024-11-24 00:02:15,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.333333333333333) internal successors, (96), 19 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:15,021 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 419 transitions. [2024-11-24 00:02:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:02:15,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:15,022 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:15,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-24 00:02:15,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-24 00:02:15,227 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:15,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1080482688, now seen corresponding path program 1 times [2024-11-24 00:02:15,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:15,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093494522] [2024-11-24 00:02:15,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:15,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:15,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350386330] [2024-11-24 00:02:15,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:15,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:15,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:15,255 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:15,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-24 00:02:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:15,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:02:15,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:15,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:15,945 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:15,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:15,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093494522] [2024-11-24 00:02:15,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:15,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350386330] [2024-11-24 00:02:15,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350386330] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:15,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:15,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-24 00:02:15,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365208055] [2024-11-24 00:02:15,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:15,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:02:15,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:15,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:02:15,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:02:15,948 INFO L87 Difference]: Start difference. First operand 342 states and 419 transitions. Second operand has 13 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:17,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:17,393 INFO L93 Difference]: Finished difference Result 478 states and 550 transitions. [2024-11-24 00:02:17,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:02:17,393 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2024-11-24 00:02:17,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:17,395 INFO L225 Difference]: With dead ends: 478 [2024-11-24 00:02:17,395 INFO L226 Difference]: Without dead ends: 476 [2024-11-24 00:02:17,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:02:17,397 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 691 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:17,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 443 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:02:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-24 00:02:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 378. [2024-11-24 00:02:17,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 334 states have (on average 1.3502994011976048) internal successors, (451), 365 states have internal predecessors, (451), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 471 transitions. [2024-11-24 00:02:17,426 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 471 transitions. Word has length 60 [2024-11-24 00:02:17,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:17,426 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 471 transitions. [2024-11-24 00:02:17,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 471 transitions. [2024-11-24 00:02:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:02:17,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:17,427 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:17,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-24 00:02:17,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:17,632 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:17,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1107411883, now seen corresponding path program 1 times [2024-11-24 00:02:17,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:17,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41992098] [2024-11-24 00:02:17,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:17,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41992098] [2024-11-24 00:02:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41992098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106676182] [2024-11-24 00:02:17,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:17,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:17,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:17,756 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:17,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-24 00:02:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:17,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:02:17,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:17,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:18,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106676182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:18,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:18,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-11-24 00:02:18,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029612861] [2024-11-24 00:02:18,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:18,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:02:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:18,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:02:18,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:02:18,042 INFO L87 Difference]: Start difference. First operand 378 states and 471 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:02:18,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:18,418 INFO L93 Difference]: Finished difference Result 380 states and 473 transitions. [2024-11-24 00:02:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:02:18,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-11-24 00:02:18,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:18,421 INFO L225 Difference]: With dead ends: 380 [2024-11-24 00:02:18,421 INFO L226 Difference]: Without dead ends: 378 [2024-11-24 00:02:18,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:02:18,422 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 237 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:18,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 236 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:02:18,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-24 00:02:18,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2024-11-24 00:02:18,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 334 states have (on average 1.3233532934131738) internal successors, (442), 363 states have internal predecessors, (442), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:18,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 462 transitions. [2024-11-24 00:02:18,452 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 462 transitions. Word has length 61 [2024-11-24 00:02:18,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:18,453 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 462 transitions. [2024-11-24 00:02:18,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:02:18,453 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 462 transitions. [2024-11-24 00:02:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:02:18,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:18,454 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:18,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-24 00:02:18,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:18,655 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:18,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:18,655 INFO L85 PathProgramCache]: Analyzing trace with hash 864775107, now seen corresponding path program 1 times [2024-11-24 00:02:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:18,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972202915] [2024-11-24 00:02:18,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:18,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308784640] [2024-11-24 00:02:18,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:18,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:18,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:18,675 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:18,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-24 00:02:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:18,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:02:18,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:19,064 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:19,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:19,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972202915] [2024-11-24 00:02:19,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:19,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308784640] [2024-11-24 00:02:19,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308784640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:19,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:19,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-24 00:02:19,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059699384] [2024-11-24 00:02:19,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:19,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:02:19,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:19,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:02:19,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:02:19,437 INFO L87 Difference]: Start difference. First operand 376 states and 462 transitions. Second operand has 16 states, 15 states have (on average 6.733333333333333) internal successors, (101), 16 states have internal predecessors, (101), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:20,650 INFO L93 Difference]: Finished difference Result 472 states and 535 transitions. [2024-11-24 00:02:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:02:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.733333333333333) internal successors, (101), 16 states have internal predecessors, (101), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 61 [2024-11-24 00:02:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:20,652 INFO L225 Difference]: With dead ends: 472 [2024-11-24 00:02:20,652 INFO L226 Difference]: Without dead ends: 470 [2024-11-24 00:02:20,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:02:20,654 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 1195 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:20,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 475 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:02:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-24 00:02:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 376. [2024-11-24 00:02:20,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 334 states have (on average 1.311377245508982) internal successors, (438), 363 states have internal predecessors, (438), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-24 00:02:20,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 458 transitions. [2024-11-24 00:02:20,682 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 458 transitions. Word has length 61 [2024-11-24 00:02:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:20,682 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 458 transitions. [2024-11-24 00:02:20,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.733333333333333) internal successors, (101), 16 states have internal predecessors, (101), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 458 transitions. [2024-11-24 00:02:20,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:02:20,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:20,684 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:20,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:20,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-24 00:02:20,888 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:20,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:20,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1038224610, now seen corresponding path program 1 times [2024-11-24 00:02:20,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:20,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458231311] [2024-11-24 00:02:20,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:20,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262657145] [2024-11-24 00:02:20,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:20,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:20,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:20,907 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:20,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-24 00:02:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:20,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:02:20,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:21,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:21,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:21,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458231311] [2024-11-24 00:02:21,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:21,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262657145] [2024-11-24 00:02:21,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262657145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:21,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:21,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-24 00:02:21,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74886736] [2024-11-24 00:02:21,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:21,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:02:21,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:21,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:02:21,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:02:21,549 INFO L87 Difference]: Start difference. First operand 376 states and 458 transitions. Second operand has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:23,199 INFO L93 Difference]: Finished difference Result 587 states and 726 transitions. [2024-11-24 00:02:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 00:02:23,199 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 62 [2024-11-24 00:02:23,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:23,201 INFO L225 Difference]: With dead ends: 587 [2024-11-24 00:02:23,201 INFO L226 Difference]: Without dead ends: 585 [2024-11-24 00:02:23,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=907, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:02:23,202 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 394 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:23,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 400 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:02:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-24 00:02:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 479. [2024-11-24 00:02:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 434 states have (on average 1.3294930875576036) internal successors, (577), 463 states have internal predecessors, (577), 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) [2024-11-24 00:02:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 603 transitions. [2024-11-24 00:02:23,238 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 603 transitions. Word has length 62 [2024-11-24 00:02:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:23,238 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 603 transitions. [2024-11-24 00:02:23,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 603 transitions. [2024-11-24 00:02:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:02:23,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:23,239 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:23,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-24 00:02:23,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:23,444 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:23,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:23,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2120191909, now seen corresponding path program 1 times [2024-11-24 00:02:23,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:23,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51132505] [2024-11-24 00:02:23,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:23,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:23,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768395594] [2024-11-24 00:02:23,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:23,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:23,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:23,473 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:23,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-24 00:02:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:23,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:02:23,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:24,098 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:24,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:28,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51132505] [2024-11-24 00:02:28,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768395594] [2024-11-24 00:02:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768395594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:28,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:28,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2024-11-24 00:02:28,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071583295] [2024-11-24 00:02:28,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:28,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:02:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:28,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:02:28,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=465, Unknown=1, NotChecked=0, Total=552 [2024-11-24 00:02:28,860 INFO L87 Difference]: Start difference. First operand 479 states and 603 transitions. Second operand has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 states have internal predecessors, (104), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:02:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:34,482 INFO L93 Difference]: Finished difference Result 608 states and 758 transitions. [2024-11-24 00:02:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-24 00:02:34,482 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 states have internal predecessors, (104), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 63 [2024-11-24 00:02:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:34,484 INFO L225 Difference]: With dead ends: 608 [2024-11-24 00:02:34,484 INFO L226 Difference]: Without dead ends: 603 [2024-11-24 00:02:34,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=652, Invalid=3379, Unknown=1, NotChecked=0, Total=4032 [2024-11-24 00:02:34,486 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 643 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 2193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:34,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 359 Invalid, 2193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-24 00:02:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-24 00:02:34,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 511. [2024-11-24 00:02:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 466 states have (on average 1.3175965665236051) internal successors, (614), 495 states have internal predecessors, (614), 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) [2024-11-24 00:02:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 640 transitions. [2024-11-24 00:02:34,522 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 640 transitions. Word has length 63 [2024-11-24 00:02:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:34,523 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 640 transitions. [2024-11-24 00:02:34,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.521739130434782) internal successors, (104), 24 states have internal predecessors, (104), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:02:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 640 transitions. [2024-11-24 00:02:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:02:34,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:34,524 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:34,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-24 00:02:34,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:34,728 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:34,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1301439812, now seen corresponding path program 1 times [2024-11-24 00:02:34,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:34,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630437017] [2024-11-24 00:02:34,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:34,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306712551] [2024-11-24 00:02:34,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:34,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:34,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:34,760 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:34,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-24 00:02:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:34,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:02:34,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:35,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:35,334 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:35,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:35,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630437017] [2024-11-24 00:02:35,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:35,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306712551] [2024-11-24 00:02:35,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306712551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:35,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:35,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-24 00:02:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509445235] [2024-11-24 00:02:35,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:35,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:02:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:35,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:02:35,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:02:35,336 INFO L87 Difference]: Start difference. First operand 511 states and 640 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:36,724 INFO L93 Difference]: Finished difference Result 590 states and 729 transitions. [2024-11-24 00:02:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:02:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 64 [2024-11-24 00:02:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:36,726 INFO L225 Difference]: With dead ends: 590 [2024-11-24 00:02:36,726 INFO L226 Difference]: Without dead ends: 588 [2024-11-24 00:02:36,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:02:36,726 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 340 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:36,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 447 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:02:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-24 00:02:36,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 514. [2024-11-24 00:02:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 469 states have (on average 1.3113006396588487) internal successors, (615), 498 states have internal predecessors, (615), 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) [2024-11-24 00:02:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 641 transitions. [2024-11-24 00:02:36,763 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 641 transitions. Word has length 64 [2024-11-24 00:02:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:36,763 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 641 transitions. [2024-11-24 00:02:36,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 641 transitions. [2024-11-24 00:02:36,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:02:36,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:36,765 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:36,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-24 00:02:36,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:36,965 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:36,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash -514704103, now seen corresponding path program 1 times [2024-11-24 00:02:36,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:36,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029451966] [2024-11-24 00:02:36,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:36,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:37,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029451966] [2024-11-24 00:02:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029451966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:37,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226901301] [2024-11-24 00:02:37,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:37,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:37,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:37,051 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:37,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-24 00:02:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:37,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:02:37,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:37,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:37,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226901301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:37,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:37,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-24 00:02:37,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704273910] [2024-11-24 00:02:37,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:37,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:02:37,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:37,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:02:37,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:02:37,464 INFO L87 Difference]: Start difference. First operand 514 states and 641 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:38,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:38,152 INFO L93 Difference]: Finished difference Result 673 states and 855 transitions. [2024-11-24 00:02:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 00:02:38,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 65 [2024-11-24 00:02:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:38,155 INFO L225 Difference]: With dead ends: 673 [2024-11-24 00:02:38,155 INFO L226 Difference]: Without dead ends: 671 [2024-11-24 00:02:38,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:02:38,156 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 200 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:38,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 324 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:02:38,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-24 00:02:38,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 639. [2024-11-24 00:02:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 591 states have (on average 1.3367174280879865) internal successors, (790), 620 states have internal predecessors, (790), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-24 00:02:38,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 822 transitions. [2024-11-24 00:02:38,204 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 822 transitions. Word has length 65 [2024-11-24 00:02:38,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:38,204 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 822 transitions. [2024-11-24 00:02:38,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 9 states have internal predecessors, (107), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:38,204 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 822 transitions. [2024-11-24 00:02:38,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-24 00:02:38,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:38,205 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-24 00:02:38,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:38,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-24 00:02:38,406 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:38,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1224042076, now seen corresponding path program 1 times [2024-11-24 00:02:38,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:38,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528359194] [2024-11-24 00:02:38,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:38,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:38,491 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:38,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:38,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528359194] [2024-11-24 00:02:38,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528359194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:38,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:02:38,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:02:38,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682549474] [2024-11-24 00:02:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:38,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:02:38,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:38,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:02:38,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:02:38,493 INFO L87 Difference]: Start difference. First operand 639 states and 822 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 00:02:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:38,964 INFO L93 Difference]: Finished difference Result 876 states and 1145 transitions. [2024-11-24 00:02:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:02:38,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2024-11-24 00:02:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:38,968 INFO L225 Difference]: With dead ends: 876 [2024-11-24 00:02:38,968 INFO L226 Difference]: Without dead ends: 874 [2024-11-24 00:02:38,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:02:38,970 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 84 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:38,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 327 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:02:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-11-24 00:02:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 807. [2024-11-24 00:02:39,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 754 states have (on average 1.3527851458885942) internal successors, (1020), 783 states have internal predecessors, (1020), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:02:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1062 transitions. [2024-11-24 00:02:39,031 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1062 transitions. Word has length 66 [2024-11-24 00:02:39,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:39,032 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1062 transitions. [2024-11-24 00:02:39,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-24 00:02:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1062 transitions. [2024-11-24 00:02:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:02:39,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:39,033 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:39,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 00:02:39,033 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:39,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:39,034 INFO L85 PathProgramCache]: Analyzing trace with hash -709401221, now seen corresponding path program 1 times [2024-11-24 00:02:39,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:39,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603307013] [2024-11-24 00:02:39,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:39,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:39,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:39,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603307013] [2024-11-24 00:02:39,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603307013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:39,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741740053] [2024-11-24 00:02:39,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:39,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:39,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:39,203 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:39,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-24 00:02:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:39,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:02:39,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:02:39,748 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:02:39,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741740053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:02:39,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:02:39,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2024-11-24 00:02:39,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691205087] [2024-11-24 00:02:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:02:39,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:02:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:39,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:02:39,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:39,750 INFO L87 Difference]: Start difference. First operand 807 states and 1062 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:02:40,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:40,270 INFO L93 Difference]: Finished difference Result 824 states and 1077 transitions. [2024-11-24 00:02:40,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:02:40,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-24 00:02:40,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:40,273 INFO L225 Difference]: With dead ends: 824 [2024-11-24 00:02:40,273 INFO L226 Difference]: Without dead ends: 822 [2024-11-24 00:02:40,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:40,274 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 129 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:40,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 291 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:02:40,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-24 00:02:40,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 815. [2024-11-24 00:02:40,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 762 states have (on average 1.3464566929133859) internal successors, (1026), 791 states have internal predecessors, (1026), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:02:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1068 transitions. [2024-11-24 00:02:40,338 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1068 transitions. Word has length 67 [2024-11-24 00:02:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:40,339 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1068 transitions. [2024-11-24 00:02:40,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-24 00:02:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1068 transitions. [2024-11-24 00:02:40,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-24 00:02:40,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:40,340 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:40,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-24 00:02:40,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:40,545 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:40,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1091039638, now seen corresponding path program 1 times [2024-11-24 00:02:40,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:40,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088212459] [2024-11-24 00:02:40,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:40,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:40,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508865828] [2024-11-24 00:02:40,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:40,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:40,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:40,574 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:40,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-24 00:02:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:40,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:02:40,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:41,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:41,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:41,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088212459] [2024-11-24 00:02:41,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:41,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508865828] [2024-11-24 00:02:41,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508865828] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:41,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:41,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-24 00:02:41,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978978417] [2024-11-24 00:02:41,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:41,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:02:41,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:41,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:02:41,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:02:41,496 INFO L87 Difference]: Start difference. First operand 815 states and 1068 transitions. Second operand has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 16 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:43,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:43,484 INFO L93 Difference]: Finished difference Result 903 states and 1177 transitions. [2024-11-24 00:02:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-24 00:02:43,485 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 16 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 70 [2024-11-24 00:02:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:43,487 INFO L225 Difference]: With dead ends: 903 [2024-11-24 00:02:43,487 INFO L226 Difference]: Without dead ends: 901 [2024-11-24 00:02:43,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:02:43,488 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 266 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:43,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 280 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:02:43,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-24 00:02:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 815. [2024-11-24 00:02:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 762 states have (on average 1.3438320209973753) internal successors, (1024), 791 states have internal predecessors, (1024), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:02:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1066 transitions. [2024-11-24 00:02:43,554 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1066 transitions. Word has length 70 [2024-11-24 00:02:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:43,555 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1066 transitions. [2024-11-24 00:02:43,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.333333333333333) internal successors, (110), 16 states have internal predecessors, (110), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1066 transitions. [2024-11-24 00:02:43,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-24 00:02:43,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:43,556 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:43,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-24 00:02:43,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-24 00:02:43,761 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:43,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash 537509677, now seen corresponding path program 1 times [2024-11-24 00:02:43,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:43,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450572652] [2024-11-24 00:02:43,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:43,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735674247] [2024-11-24 00:02:43,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:43,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:43,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:43,782 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:43,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-24 00:02:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:43,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:02:43,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:44,277 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:02:44,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:02:44,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:44,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450572652] [2024-11-24 00:02:44,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:44,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735674247] [2024-11-24 00:02:44,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735674247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:44,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:44,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-11-24 00:02:44,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296134309] [2024-11-24 00:02:44,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:44,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:02:44,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:44,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:02:44,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:02:44,752 INFO L87 Difference]: Start difference. First operand 815 states and 1066 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:47,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:47,436 INFO L93 Difference]: Finished difference Result 827 states and 1079 transitions. [2024-11-24 00:02:47,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:02:47,437 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 71 [2024-11-24 00:02:47,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:47,439 INFO L225 Difference]: With dead ends: 827 [2024-11-24 00:02:47,440 INFO L226 Difference]: Without dead ends: 826 [2024-11-24 00:02:47,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:02:47,441 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 264 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:47,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 183 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:02:47,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-24 00:02:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 814. [2024-11-24 00:02:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 762 states have (on average 1.3241469816272966) internal successors, (1009), 790 states have internal predecessors, (1009), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:02:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1051 transitions. [2024-11-24 00:02:47,518 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1051 transitions. Word has length 71 [2024-11-24 00:02:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:47,519 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1051 transitions. [2024-11-24 00:02:47,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:02:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1051 transitions. [2024-11-24 00:02:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-24 00:02:47,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:47,520 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:02:47,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-24 00:02:47,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:47,721 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:47,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1200458336, now seen corresponding path program 1 times [2024-11-24 00:02:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:47,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273333298] [2024-11-24 00:02:47,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:47,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:47,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:47,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273333298] [2024-11-24 00:02:47,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273333298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996408455] [2024-11-24 00:02:47,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:47,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:47,847 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:47,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-24 00:02:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:47,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:02:47,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:48,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:48,430 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:48,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996408455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:48,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:48,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-24 00:02:48,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319566800] [2024-11-24 00:02:48,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:48,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:02:48,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:48,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:02:48,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:02:48,433 INFO L87 Difference]: Start difference. First operand 814 states and 1051 transitions. Second operand has 13 states, 12 states have (on average 14.5) internal successors, (174), 13 states have internal predecessors, (174), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:02:49,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:49,134 INFO L93 Difference]: Finished difference Result 1166 states and 1487 transitions. [2024-11-24 00:02:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:02:49,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.5) internal successors, (174), 13 states have internal predecessors, (174), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 77 [2024-11-24 00:02:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:49,139 INFO L225 Difference]: With dead ends: 1166 [2024-11-24 00:02:49,139 INFO L226 Difference]: Without dead ends: 1164 [2024-11-24 00:02:49,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=254, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:02:49,142 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 1039 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:49,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 337 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:02:49,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2024-11-24 00:02:49,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1008. [2024-11-24 00:02:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 951 states have (on average 1.3112513144058886) internal successors, (1247), 978 states have internal predecessors, (1247), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:02:49,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1301 transitions. [2024-11-24 00:02:49,256 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1301 transitions. Word has length 77 [2024-11-24 00:02:49,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:49,257 INFO L471 AbstractCegarLoop]: Abstraction has 1008 states and 1301 transitions. [2024-11-24 00:02:49,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.5) internal successors, (174), 13 states have internal predecessors, (174), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-24 00:02:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1301 transitions. [2024-11-24 00:02:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-24 00:02:49,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:49,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-24 00:02:49,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-24 00:02:49,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:49,458 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:49,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:49,459 INFO L85 PathProgramCache]: Analyzing trace with hash -757345900, now seen corresponding path program 1 times [2024-11-24 00:02:49,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:49,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068147175] [2024-11-24 00:02:49,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:49,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:49,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:49,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068147175] [2024-11-24 00:02:49,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068147175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:49,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085602574] [2024-11-24 00:02:49,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:49,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:49,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:49,553 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:49,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-24 00:02:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:49,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:02:49,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:49,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:50,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085602574] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:50,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:50,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-24 00:02:50,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413603534] [2024-11-24 00:02:50,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:50,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:02:50,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:50,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:02:50,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:02:50,111 INFO L87 Difference]: Start difference. First operand 1008 states and 1301 transitions. Second operand has 10 states, 9 states have (on average 17.11111111111111) internal successors, (154), 10 states have internal predecessors, (154), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:02:50,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:50,885 INFO L93 Difference]: Finished difference Result 1492 states and 1902 transitions. [2024-11-24 00:02:50,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 00:02:50,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.11111111111111) internal successors, (154), 10 states have internal predecessors, (154), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 80 [2024-11-24 00:02:50,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:50,891 INFO L225 Difference]: With dead ends: 1492 [2024-11-24 00:02:50,891 INFO L226 Difference]: Without dead ends: 1491 [2024-11-24 00:02:50,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:02:50,892 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 475 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:50,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 423 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:02:50,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2024-11-24 00:02:51,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1259. [2024-11-24 00:02:51,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1194 states have (on average 1.312395309882747) internal successors, (1567), 1221 states have internal predecessors, (1567), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-24 00:02:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1637 transitions. [2024-11-24 00:02:51,013 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1637 transitions. Word has length 80 [2024-11-24 00:02:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:51,013 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1637 transitions. [2024-11-24 00:02:51,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.11111111111111) internal successors, (154), 10 states have internal predecessors, (154), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:02:51,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1637 transitions. [2024-11-24 00:02:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-24 00:02:51,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:51,014 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:02:51,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-24 00:02:51,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-24 00:02:51,215 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:51,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1462927926, now seen corresponding path program 1 times [2024-11-24 00:02:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259836598] [2024-11-24 00:02:51,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:51,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:51,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259836598] [2024-11-24 00:02:51,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259836598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:51,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809161439] [2024-11-24 00:02:51,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:51,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:51,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:51,318 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:51,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-24 00:02:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:51,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:02:51,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:51,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:51,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809161439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:51,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:51,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-24 00:02:51,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680442685] [2024-11-24 00:02:51,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:51,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:02:51,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:51,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:02:51,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:51,584 INFO L87 Difference]: Start difference. First operand 1259 states and 1637 transitions. Second operand has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 12 states have internal predecessors, (150), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:02:51,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:51,792 INFO L93 Difference]: Finished difference Result 1533 states and 1973 transitions. [2024-11-24 00:02:51,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:02:51,792 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 12 states have internal predecessors, (150), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 81 [2024-11-24 00:02:51,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:51,796 INFO L225 Difference]: With dead ends: 1533 [2024-11-24 00:02:51,796 INFO L226 Difference]: Without dead ends: 1532 [2024-11-24 00:02:51,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:51,797 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 79 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:51,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 687 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:02:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-11-24 00:02:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1482. [2024-11-24 00:02:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1412 states have (on average 1.2939093484419264) internal successors, (1827), 1439 states have internal predecessors, (1827), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:02:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1907 transitions. [2024-11-24 00:02:51,891 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1907 transitions. Word has length 81 [2024-11-24 00:02:51,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:51,892 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1907 transitions. [2024-11-24 00:02:51,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 12 states have internal predecessors, (150), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:02:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1907 transitions. [2024-11-24 00:02:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 00:02:51,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:51,893 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:02:51,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-24 00:02:52,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 00:02:52,093 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:52,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:52,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2062005982, now seen corresponding path program 1 times [2024-11-24 00:02:52,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55604050] [2024-11-24 00:02:52,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:52,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:52,245 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:52,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:52,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55604050] [2024-11-24 00:02:52,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55604050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:52,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396604813] [2024-11-24 00:02:52,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:52,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:52,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:52,249 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:52,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-24 00:02:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:52,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:02:52,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:52,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396604813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:53,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:53,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-11-24 00:02:53,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132181868] [2024-11-24 00:02:53,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:53,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:02:53,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:53,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:02:53,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:02:53,316 INFO L87 Difference]: Start difference. First operand 1482 states and 1907 transitions. Second operand has 18 states, 17 states have (on average 11.176470588235293) internal successors, (190), 18 states have internal predecessors, (190), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:02:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:54,535 INFO L93 Difference]: Finished difference Result 1575 states and 1997 transitions. [2024-11-24 00:02:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:02:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.176470588235293) internal successors, (190), 18 states have internal predecessors, (190), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 84 [2024-11-24 00:02:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:54,541 INFO L225 Difference]: With dead ends: 1575 [2024-11-24 00:02:54,541 INFO L226 Difference]: Without dead ends: 1574 [2024-11-24 00:02:54,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:02:54,542 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 784 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:54,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 569 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:02:54,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-24 00:02:54,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1488. [2024-11-24 00:02:54,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1418 states have (on average 1.2898448519040904) internal successors, (1829), 1445 states have internal predecessors, (1829), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:02:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1909 transitions. [2024-11-24 00:02:54,700 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1909 transitions. Word has length 84 [2024-11-24 00:02:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:54,700 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1909 transitions. [2024-11-24 00:02:54,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.176470588235293) internal successors, (190), 18 states have internal predecessors, (190), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:02:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1909 transitions. [2024-11-24 00:02:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-24 00:02:54,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:54,707 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:54,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-24 00:02:54,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-24 00:02:54,908 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:54,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1374946540, now seen corresponding path program 1 times [2024-11-24 00:02:54,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:54,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459018534] [2024-11-24 00:02:54,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:54,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:54,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076691259] [2024-11-24 00:02:54,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:54,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:54,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:54,936 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:54,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-24 00:02:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:55,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:02:55,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:55,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:55,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:55,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459018534] [2024-11-24 00:02:55,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:02:55,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076691259] [2024-11-24 00:02:55,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076691259] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:55,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:02:55,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-24 00:02:55,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879023007] [2024-11-24 00:02:55,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:55,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:02:55,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:55,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:02:55,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:02:55,699 INFO L87 Difference]: Start difference. First operand 1488 states and 1909 transitions. Second operand has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:57,055 INFO L93 Difference]: Finished difference Result 1505 states and 1922 transitions. [2024-11-24 00:02:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:02:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 85 [2024-11-24 00:02:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:57,060 INFO L225 Difference]: With dead ends: 1505 [2024-11-24 00:02:57,060 INFO L226 Difference]: Without dead ends: 1503 [2024-11-24 00:02:57,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:02:57,062 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 179 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:57,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 499 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:02:57,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-24 00:02:57,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1488. [2024-11-24 00:02:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1418 states have (on average 1.2863187588152327) internal successors, (1824), 1445 states have internal predecessors, (1824), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 00:02:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1904 transitions. [2024-11-24 00:02:57,160 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1904 transitions. Word has length 85 [2024-11-24 00:02:57,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:57,160 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1904 transitions. [2024-11-24 00:02:57,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:02:57,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1904 transitions. [2024-11-24 00:02:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 00:02:57,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:57,161 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-24 00:02:57,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-24 00:02:57,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-24 00:02:57,362 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:57,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1607821404, now seen corresponding path program 1 times [2024-11-24 00:02:57,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:57,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137599895] [2024-11-24 00:02:57,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:57,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:57,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:02:57,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137599895] [2024-11-24 00:02:57,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137599895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:02:57,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643842615] [2024-11-24 00:02:57,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:57,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:57,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:57,462 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:57,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-24 00:02:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:57,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:02:57,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:57,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:02:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:02:57,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643842615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:02:57,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:02:57,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-24 00:02:57,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294423705] [2024-11-24 00:02:57,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:02:57,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:02:57,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:02:57,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:02:57,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:57,777 INFO L87 Difference]: Start difference. First operand 1488 states and 1904 transitions. Second operand has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:02:58,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:02:58,033 INFO L93 Difference]: Finished difference Result 2008 states and 2556 transitions. [2024-11-24 00:02:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:02:58,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 86 [2024-11-24 00:02:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:02:58,040 INFO L225 Difference]: With dead ends: 2008 [2024-11-24 00:02:58,041 INFO L226 Difference]: Without dead ends: 2007 [2024-11-24 00:02:58,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:02:58,042 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 208 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:02:58,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 789 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:02:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2024-11-24 00:02:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1794. [2024-11-24 00:02:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1715 states have (on average 1.2956268221574343) internal successors, (2222), 1742 states have internal predecessors, (2222), 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) [2024-11-24 00:02:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2320 transitions. [2024-11-24 00:02:58,165 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2320 transitions. Word has length 86 [2024-11-24 00:02:58,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:02:58,165 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2320 transitions. [2024-11-24 00:02:58,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-24 00:02:58,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2320 transitions. [2024-11-24 00:02:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 00:02:58,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:02:58,166 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:02:58,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-24 00:02:58,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-24 00:02:58,367 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:02:58,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:02:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash -550008566, now seen corresponding path program 1 times [2024-11-24 00:02:58,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:02:58,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614651717] [2024-11-24 00:02:58,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:02:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:02:58,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085026641] [2024-11-24 00:02:58,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:02:58,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:02:58,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:02:58,394 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:02:58,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-24 00:02:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:02:58,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:02:58,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:02:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:02:59,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:00,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614651717] [2024-11-24 00:03:00,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085026641] [2024-11-24 00:03:00,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085026641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:00,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:00,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:03:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354817620] [2024-11-24 00:03:00,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:00,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:03:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:00,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:03:00,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:03:00,203 INFO L87 Difference]: Start difference. First operand 1794 states and 2320 transitions. Second operand has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:03:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:01,657 INFO L93 Difference]: Finished difference Result 1837 states and 2352 transitions. [2024-11-24 00:03:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:03:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 87 [2024-11-24 00:03:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:01,662 INFO L225 Difference]: With dead ends: 1837 [2024-11-24 00:03:01,663 INFO L226 Difference]: Without dead ends: 1833 [2024-11-24 00:03:01,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:03:01,664 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 280 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:01,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 747 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:03:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2024-11-24 00:03:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1786. [2024-11-24 00:03:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1707 states have (on average 1.291154071470416) internal successors, (2204), 1734 states have internal predecessors, (2204), 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) [2024-11-24 00:03:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2302 transitions. [2024-11-24 00:03:01,782 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2302 transitions. Word has length 87 [2024-11-24 00:03:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:01,782 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 2302 transitions. [2024-11-24 00:03:01,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-24 00:03:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2302 transitions. [2024-11-24 00:03:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 00:03:01,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:01,784 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:01,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-24 00:03:01,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-24 00:03:01,988 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:01,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:01,988 INFO L85 PathProgramCache]: Analyzing trace with hash -151862706, now seen corresponding path program 1 times [2024-11-24 00:03:01,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:01,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037623111] [2024-11-24 00:03:01,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:01,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:02,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267441407] [2024-11-24 00:03:02,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:02,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:02,007 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:02,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-24 00:03:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:02,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:03:02,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:03:02,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:03:03,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:03,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037623111] [2024-11-24 00:03:03,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:03,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267441407] [2024-11-24 00:03:03,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267441407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:03,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:03:03,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-24 00:03:03,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297724678] [2024-11-24 00:03:03,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:03,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:03:03,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:03,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:03:03,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:03:03,744 INFO L87 Difference]: Start difference. First operand 1786 states and 2302 transitions. Second operand has 23 states, 22 states have (on average 6.863636363636363) internal successors, (151), 23 states have internal predecessors, (151), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:08,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:08,731 INFO L93 Difference]: Finished difference Result 2010 states and 2572 transitions. [2024-11-24 00:03:08,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-24 00:03:08,732 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.863636363636363) internal successors, (151), 23 states have internal predecessors, (151), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 91 [2024-11-24 00:03:08,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:08,737 INFO L225 Difference]: With dead ends: 2010 [2024-11-24 00:03:08,738 INFO L226 Difference]: Without dead ends: 2006 [2024-11-24 00:03:08,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=534, Invalid=2222, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 00:03:08,740 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 824 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:08,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 581 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:03:08,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2024-11-24 00:03:08,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1897. [2024-11-24 00:03:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1814 states have (on average 1.2756339581036384) internal successors, (2314), 1841 states have internal predecessors, (2314), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2420 transitions. [2024-11-24 00:03:08,947 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2420 transitions. Word has length 91 [2024-11-24 00:03:08,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:08,947 INFO L471 AbstractCegarLoop]: Abstraction has 1897 states and 2420 transitions. [2024-11-24 00:03:08,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.863636363636363) internal successors, (151), 23 states have internal predecessors, (151), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2420 transitions. [2024-11-24 00:03:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:03:08,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:08,949 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:08,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:09,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:09,153 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:09,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash -19142465, now seen corresponding path program 1 times [2024-11-24 00:03:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:09,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425658810] [2024-11-24 00:03:09,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:09,411 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:09,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:09,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425658810] [2024-11-24 00:03:09,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425658810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:09,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668496673] [2024-11-24 00:03:09,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:09,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:09,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:09,414 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:09,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-24 00:03:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:09,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 00:03:09,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:10,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668496673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:10,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:03:10,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-24 00:03:10,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268063438] [2024-11-24 00:03:10,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:10,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:03:10,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:10,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:03:10,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:03:10,408 INFO L87 Difference]: Start difference. First operand 1897 states and 2420 transitions. Second operand has 23 states, 22 states have (on average 9.818181818181818) internal successors, (216), 23 states have internal predecessors, (216), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:12,285 INFO L93 Difference]: Finished difference Result 1931 states and 2456 transitions. [2024-11-24 00:03:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:03:12,286 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 9.818181818181818) internal successors, (216), 23 states have internal predecessors, (216), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 94 [2024-11-24 00:03:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:12,295 INFO L225 Difference]: With dead ends: 1931 [2024-11-24 00:03:12,298 INFO L226 Difference]: Without dead ends: 1930 [2024-11-24 00:03:12,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=241, Invalid=1319, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:03:12,300 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 186 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:12,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 820 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:03:12,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2024-11-24 00:03:12,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1918. [2024-11-24 00:03:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1835 states have (on average 1.2730245231607629) internal successors, (2336), 1862 states have internal predecessors, (2336), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2442 transitions. [2024-11-24 00:03:12,436 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2442 transitions. Word has length 94 [2024-11-24 00:03:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:12,436 INFO L471 AbstractCegarLoop]: Abstraction has 1918 states and 2442 transitions. [2024-11-24 00:03:12,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 9.818181818181818) internal successors, (216), 23 states have internal predecessors, (216), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:12,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2442 transitions. [2024-11-24 00:03:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:03:12,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:12,437 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:12,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:12,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:12,638 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:12,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash 820360661, now seen corresponding path program 1 times [2024-11-24 00:03:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:12,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963902160] [2024-11-24 00:03:12,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12724265] [2024-11-24 00:03:12,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:12,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:12,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:12,674 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:12,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-24 00:03:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:12,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:03:12,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:13,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:14,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:14,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963902160] [2024-11-24 00:03:14,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:14,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12724265] [2024-11-24 00:03:14,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12724265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:14,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:14,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 00:03:14,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122178525] [2024-11-24 00:03:14,021 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:14,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:03:14,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:14,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:03:14,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=385, Unknown=1, NotChecked=0, Total=462 [2024-11-24 00:03:14,022 INFO L87 Difference]: Start difference. First operand 1918 states and 2442 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:14,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:14,933 INFO L93 Difference]: Finished difference Result 1947 states and 2472 transitions. [2024-11-24 00:03:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:03:14,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 94 [2024-11-24 00:03:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:14,938 INFO L225 Difference]: With dead ends: 1947 [2024-11-24 00:03:14,938 INFO L226 Difference]: Without dead ends: 1945 [2024-11-24 00:03:14,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=491, Unknown=1, NotChecked=0, Total=600 [2024-11-24 00:03:14,939 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 113 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:14,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 826 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:03:14,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2024-11-24 00:03:15,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1927. [2024-11-24 00:03:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1844 states have (on average 1.272234273318872) internal successors, (2346), 1871 states have internal predecessors, (2346), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:15,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2452 transitions. [2024-11-24 00:03:15,108 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2452 transitions. Word has length 94 [2024-11-24 00:03:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:15,108 INFO L471 AbstractCegarLoop]: Abstraction has 1927 states and 2452 transitions. [2024-11-24 00:03:15,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 12 states have internal predecessors, (80), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:15,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2452 transitions. [2024-11-24 00:03:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:03:15,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:15,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:15,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:15,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:15,311 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:15,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash -593416240, now seen corresponding path program 1 times [2024-11-24 00:03:15,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:15,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088761722] [2024-11-24 00:03:15,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:15,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:03:15,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:15,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088761722] [2024-11-24 00:03:15,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088761722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:15,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:15,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:03:15,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703944889] [2024-11-24 00:03:15,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:15,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:03:15,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:15,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:03:15,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:15,396 INFO L87 Difference]: Start difference. First operand 1927 states and 2452 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-24 00:03:15,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:15,812 INFO L93 Difference]: Finished difference Result 1940 states and 2457 transitions. [2024-11-24 00:03:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:03:15,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 95 [2024-11-24 00:03:15,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:15,818 INFO L225 Difference]: With dead ends: 1940 [2024-11-24 00:03:15,818 INFO L226 Difference]: Without dead ends: 1917 [2024-11-24 00:03:15,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:03:15,819 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 21 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:15,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 197 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:03:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2024-11-24 00:03:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1909. [2024-11-24 00:03:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1909 states, 1826 states have (on average 1.2738225629791895) internal successors, (2326), 1853 states have internal predecessors, (2326), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1909 states to 1909 states and 2432 transitions. [2024-11-24 00:03:16,034 INFO L78 Accepts]: Start accepts. Automaton has 1909 states and 2432 transitions. Word has length 95 [2024-11-24 00:03:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:16,035 INFO L471 AbstractCegarLoop]: Abstraction has 1909 states and 2432 transitions. [2024-11-24 00:03:16,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-24 00:03:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1909 states and 2432 transitions. [2024-11-24 00:03:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:03:16,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:16,036 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:16,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-24 00:03:16,036 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:16,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:16,037 INFO L85 PathProgramCache]: Analyzing trace with hash -338623214, now seen corresponding path program 1 times [2024-11-24 00:03:16,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:16,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416243658] [2024-11-24 00:03:16,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:16,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:16,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633294495] [2024-11-24 00:03:16,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:16,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:16,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:16,072 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:16,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-24 00:03:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:16,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 00:03:16,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:03:17,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:19,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:19,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416243658] [2024-11-24 00:03:19,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:19,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633294495] [2024-11-24 00:03:19,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633294495] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:19,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:03:19,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2024-11-24 00:03:19,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393371798] [2024-11-24 00:03:19,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:19,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 00:03:19,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:19,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 00:03:19,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:03:19,047 INFO L87 Difference]: Start difference. First operand 1909 states and 2432 transitions. Second operand has 29 states, 28 states have (on average 5.607142857142857) internal successors, (157), 29 states have internal predecessors, (157), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-24 00:03:27,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:27,656 INFO L93 Difference]: Finished difference Result 2035 states and 2579 transitions. [2024-11-24 00:03:27,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-24 00:03:27,657 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.607142857142857) internal successors, (157), 29 states have internal predecessors, (157), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 95 [2024-11-24 00:03:27,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:27,660 INFO L225 Difference]: With dead ends: 2035 [2024-11-24 00:03:27,660 INFO L226 Difference]: Without dead ends: 2003 [2024-11-24 00:03:27,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1253 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=837, Invalid=4565, Unknown=0, NotChecked=0, Total=5402 [2024-11-24 00:03:27,661 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 625 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 3067 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:27,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 587 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3067 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 00:03:27,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2024-11-24 00:03:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1915. [2024-11-24 00:03:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1915 states, 1832 states have (on average 1.2701965065502183) internal successors, (2327), 1859 states have internal predecessors, (2327), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2433 transitions. [2024-11-24 00:03:27,780 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2433 transitions. Word has length 95 [2024-11-24 00:03:27,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:27,780 INFO L471 AbstractCegarLoop]: Abstraction has 1915 states and 2433 transitions. [2024-11-24 00:03:27,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.607142857142857) internal successors, (157), 29 states have internal predecessors, (157), 6 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-24 00:03:27,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2433 transitions. [2024-11-24 00:03:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:03:27,781 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:27,781 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:27,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-24 00:03:27,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-24 00:03:27,981 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:27,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:27,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1904783554, now seen corresponding path program 1 times [2024-11-24 00:03:27,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:27,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245059969] [2024-11-24 00:03:27,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:28,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:28,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245059969] [2024-11-24 00:03:28,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245059969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:28,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860852353] [2024-11-24 00:03:28,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:28,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:28,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:28,175 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:28,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-24 00:03:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:28,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:03:28,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:28,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:28,990 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:28,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860852353] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:28,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:03:28,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-24 00:03:28,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978717164] [2024-11-24 00:03:28,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:28,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:03:28,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:28,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:03:28,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:03:28,992 INFO L87 Difference]: Start difference. First operand 1915 states and 2433 transitions. Second operand has 23 states, 22 states have (on average 9.954545454545455) internal successors, (219), 23 states have internal predecessors, (219), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:30,032 INFO L93 Difference]: Finished difference Result 1941 states and 2461 transitions. [2024-11-24 00:03:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:03:30,033 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 9.954545454545455) internal successors, (219), 23 states have internal predecessors, (219), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 95 [2024-11-24 00:03:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:30,036 INFO L225 Difference]: With dead ends: 1941 [2024-11-24 00:03:30,036 INFO L226 Difference]: Without dead ends: 1940 [2024-11-24 00:03:30,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:03:30,037 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 221 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:30,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 559 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 00:03:30,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-24 00:03:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1929. [2024-11-24 00:03:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1846 states have (on average 1.2686890574214518) internal successors, (2342), 1873 states have internal predecessors, (2342), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:30,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2448 transitions. [2024-11-24 00:03:30,169 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2448 transitions. Word has length 95 [2024-11-24 00:03:30,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:30,170 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2448 transitions. [2024-11-24 00:03:30,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 9.954545454545455) internal successors, (219), 23 states have internal predecessors, (219), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2448 transitions. [2024-11-24 00:03:30,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:03:30,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:30,171 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:30,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-24 00:03:30,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-24 00:03:30,376 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:30,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash -298774579, now seen corresponding path program 1 times [2024-11-24 00:03:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:30,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662427501] [2024-11-24 00:03:30,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:30,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:30,508 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:30,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:30,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662427501] [2024-11-24 00:03:30,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662427501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:30,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970907295] [2024-11-24 00:03:30,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:30,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:30,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:30,511 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-24 00:03:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:30,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:03:30,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:30,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:30,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970907295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:30,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:30,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 00:03:30,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736753312] [2024-11-24 00:03:30,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:30,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:03:30,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:30,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:03:30,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:30,764 INFO L87 Difference]: Start difference. First operand 1929 states and 2448 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:31,246 INFO L93 Difference]: Finished difference Result 1938 states and 2448 transitions. [2024-11-24 00:03:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:03:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 98 [2024-11-24 00:03:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:31,253 INFO L225 Difference]: With dead ends: 1938 [2024-11-24 00:03:31,253 INFO L226 Difference]: Without dead ends: 1937 [2024-11-24 00:03:31,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:03:31,255 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 96 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:31,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 291 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:03:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-24 00:03:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1929. [2024-11-24 00:03:31,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1846 states have (on average 1.2681473456121344) internal successors, (2341), 1873 states have internal predecessors, (2341), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:31,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2447 transitions. [2024-11-24 00:03:31,535 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2447 transitions. Word has length 98 [2024-11-24 00:03:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:31,535 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2447 transitions. [2024-11-24 00:03:31,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:31,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2447 transitions. [2024-11-24 00:03:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:03:31,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:31,537 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:31,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-24 00:03:31,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-24 00:03:31,738 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:31,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:31,738 INFO L85 PathProgramCache]: Analyzing trace with hash -672077182, now seen corresponding path program 1 times [2024-11-24 00:03:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:31,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980076154] [2024-11-24 00:03:31,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:31,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23549050] [2024-11-24 00:03:31,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:31,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:31,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:31,790 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:31,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-24 00:03:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:31,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:03:31,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:32,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:34,448 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:34,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980076154] [2024-11-24 00:03:34,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23549050] [2024-11-24 00:03:34,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23549050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:34,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:03:34,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 24 [2024-11-24 00:03:34,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788807992] [2024-11-24 00:03:34,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:34,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 00:03:34,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:34,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 00:03:34,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:03:34,450 INFO L87 Difference]: Start difference. First operand 1929 states and 2447 transitions. Second operand has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 25 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:03:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:37,865 INFO L93 Difference]: Finished difference Result 1947 states and 2467 transitions. [2024-11-24 00:03:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 00:03:37,866 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 25 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 99 [2024-11-24 00:03:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:37,869 INFO L225 Difference]: With dead ends: 1947 [2024-11-24 00:03:37,869 INFO L226 Difference]: Without dead ends: 1920 [2024-11-24 00:03:37,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=378, Invalid=954, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:03:37,870 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 145 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:37,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 314 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:03:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2024-11-24 00:03:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1920. [2024-11-24 00:03:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1837 states have (on average 1.2694610778443114) internal successors, (2332), 1864 states have internal predecessors, (2332), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2438 transitions. [2024-11-24 00:03:38,083 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2438 transitions. Word has length 99 [2024-11-24 00:03:38,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:38,084 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2438 transitions. [2024-11-24 00:03:38,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.583333333333333) internal successors, (158), 25 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:03:38,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2438 transitions. [2024-11-24 00:03:38,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:03:38,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:38,085 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:38,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-24 00:03:38,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:38,286 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:38,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash 512221560, now seen corresponding path program 1 times [2024-11-24 00:03:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001457950] [2024-11-24 00:03:38,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:38,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:38,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268307994] [2024-11-24 00:03:38,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:38,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:38,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:38,310 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:38,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-24 00:03:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:38,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:03:38,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:03:39,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:43,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:43,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001457950] [2024-11-24 00:03:43,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:43,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268307994] [2024-11-24 00:03:43,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268307994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:43,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:43,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:03:43,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347436270] [2024-11-24 00:03:43,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:43,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:03:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:43,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:03:43,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:03:43,947 INFO L87 Difference]: Start difference. First operand 1920 states and 2438 transitions. Second operand has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:46,729 INFO L93 Difference]: Finished difference Result 1935 states and 2445 transitions. [2024-11-24 00:03:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:03:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 101 [2024-11-24 00:03:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:46,734 INFO L225 Difference]: With dead ends: 1935 [2024-11-24 00:03:46,734 INFO L226 Difference]: Without dead ends: 1934 [2024-11-24 00:03:46,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:03:46,735 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 139 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:46,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 695 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:03:46,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-24 00:03:46,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1920. [2024-11-24 00:03:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1837 states have (on average 1.2672836145890038) internal successors, (2328), 1864 states have internal predecessors, (2328), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:03:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2434 transitions. [2024-11-24 00:03:46,954 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2434 transitions. Word has length 101 [2024-11-24 00:03:46,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:46,954 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2434 transitions. [2024-11-24 00:03:46,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:46,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2434 transitions. [2024-11-24 00:03:46,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-24 00:03:46,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:46,955 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:46,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-24 00:03:47,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-24 00:03:47,160 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:47,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:47,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1530325923, now seen corresponding path program 1 times [2024-11-24 00:03:47,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:47,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926793485] [2024-11-24 00:03:47,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:47,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:47,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:47,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926793485] [2024-11-24 00:03:47,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926793485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:47,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792969192] [2024-11-24 00:03:47,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:47,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:47,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:47,380 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:47,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-24 00:03:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:47,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:03:47,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:47,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 00:03:48,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792969192] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:48,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:03:48,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-11-24 00:03:48,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887758865] [2024-11-24 00:03:48,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:48,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:03:48,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:48,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:03:48,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:03:48,166 INFO L87 Difference]: Start difference. First operand 1920 states and 2434 transitions. Second operand has 20 states, 19 states have (on average 12.631578947368421) internal successors, (240), 20 states have internal predecessors, (240), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:51,211 INFO L93 Difference]: Finished difference Result 3213 states and 4071 transitions. [2024-11-24 00:03:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-24 00:03:51,212 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 12.631578947368421) internal successors, (240), 20 states have internal predecessors, (240), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 102 [2024-11-24 00:03:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:51,219 INFO L225 Difference]: With dead ends: 3213 [2024-11-24 00:03:51,219 INFO L226 Difference]: Without dead ends: 2637 [2024-11-24 00:03:51,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=563, Invalid=2629, Unknown=0, NotChecked=0, Total=3192 [2024-11-24 00:03:51,221 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 865 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:51,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1277 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:03:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2024-11-24 00:03:51,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2108. [2024-11-24 00:03:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 2017 states have (on average 1.2776400594942985) internal successors, (2577), 2044 states have internal predecessors, (2577), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:03:51,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 2699 transitions. [2024-11-24 00:03:51,449 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 2699 transitions. Word has length 102 [2024-11-24 00:03:51,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:51,449 INFO L471 AbstractCegarLoop]: Abstraction has 2108 states and 2699 transitions. [2024-11-24 00:03:51,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 12.631578947368421) internal successors, (240), 20 states have internal predecessors, (240), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:03:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 2699 transitions. [2024-11-24 00:03:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 00:03:51,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:51,451 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:51,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-24 00:03:51,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-24 00:03:51,654 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:51,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:51,658 INFO L85 PathProgramCache]: Analyzing trace with hash -697190358, now seen corresponding path program 1 times [2024-11-24 00:03:51,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:51,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497030405] [2024-11-24 00:03:51,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:51,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:51,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798335060] [2024-11-24 00:03:51,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:51,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:51,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:51,711 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:51,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-24 00:03:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:51,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 00:03:51,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-24 00:03:52,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:53,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497030405] [2024-11-24 00:03:53,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:53,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798335060] [2024-11-24 00:03:53,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798335060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:53,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:03:53,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-24 00:03:53,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241919403] [2024-11-24 00:03:53,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:53,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 00:03:53,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:53,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 00:03:53,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:03:53,105 INFO L87 Difference]: Start difference. First operand 2108 states and 2699 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:54,451 INFO L93 Difference]: Finished difference Result 2111 states and 2699 transitions. [2024-11-24 00:03:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:03:54,451 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 105 [2024-11-24 00:03:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:54,457 INFO L225 Difference]: With dead ends: 2111 [2024-11-24 00:03:54,457 INFO L226 Difference]: Without dead ends: 2105 [2024-11-24 00:03:54,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:03:54,459 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 206 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:54,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 706 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:03:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2024-11-24 00:03:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2104. [2024-11-24 00:03:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 2013 states have (on average 1.2771982116244411) internal successors, (2571), 2040 states have internal predecessors, (2571), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:03:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 2693 transitions. [2024-11-24 00:03:54,695 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 2693 transitions. Word has length 105 [2024-11-24 00:03:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:54,695 INFO L471 AbstractCegarLoop]: Abstraction has 2104 states and 2693 transitions. [2024-11-24 00:03:54,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 2693 transitions. [2024-11-24 00:03:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 00:03:54,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:54,697 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:54,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-24 00:03:54,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:54,901 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:54,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:54,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1280729400, now seen corresponding path program 1 times [2024-11-24 00:03:54,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:54,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143921388] [2024-11-24 00:03:54,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:54,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:03:54,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153785397] [2024-11-24 00:03:54,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:54,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:54,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:54,924 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:54,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-24 00:03:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:54,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:03:54,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 00:03:55,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:03:55,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:55,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143921388] [2024-11-24 00:03:55,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:03:55,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153785397] [2024-11-24 00:03:55,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153785397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:03:55,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:03:55,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:03:55,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757948382] [2024-11-24 00:03:55,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:03:55,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:03:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:55,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:03:55,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:03:55,379 INFO L87 Difference]: Start difference. First operand 2104 states and 2693 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:56,194 INFO L93 Difference]: Finished difference Result 2112 states and 2693 transitions. [2024-11-24 00:03:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:03:56,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 116 [2024-11-24 00:03:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:56,200 INFO L225 Difference]: With dead ends: 2112 [2024-11-24 00:03:56,200 INFO L226 Difference]: Without dead ends: 2100 [2024-11-24 00:03:56,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:03:56,202 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 95 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:56,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 263 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:03:56,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-11-24 00:03:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2093. [2024-11-24 00:03:56,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 2002 states have (on average 1.2777222777222776) internal successors, (2558), 2029 states have internal predecessors, (2558), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:03:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2680 transitions. [2024-11-24 00:03:56,428 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2680 transitions. Word has length 116 [2024-11-24 00:03:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:03:56,429 INFO L471 AbstractCegarLoop]: Abstraction has 2093 states and 2680 transitions. [2024-11-24 00:03:56,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:03:56,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2680 transitions. [2024-11-24 00:03:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:03:56,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:03:56,431 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:03:56,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-24 00:03:56,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:56,635 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:03:56,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:03:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2094281309, now seen corresponding path program 1 times [2024-11-24 00:03:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:03:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277872982] [2024-11-24 00:03:56,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:03:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:03:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:03:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277872982] [2024-11-24 00:03:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277872982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:03:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123301962] [2024-11-24 00:03:57,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:03:57,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:03:57,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:03:57,081 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:03:57,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-24 00:03:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:03:57,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:03:57,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:03:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:03:57,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:03:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:03:58,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123301962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:03:58,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:03:58,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-24 00:03:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168001041] [2024-11-24 00:03:58,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:03:58,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:03:58,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:03:58,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:03:58,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:03:58,289 INFO L87 Difference]: Start difference. First operand 2093 states and 2680 transitions. Second operand has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 26 states have internal predecessors, (256), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-24 00:03:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:03:59,981 INFO L93 Difference]: Finished difference Result 2125 states and 2709 transitions. [2024-11-24 00:03:59,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:03:59,982 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 26 states have internal predecessors, (256), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 119 [2024-11-24 00:03:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:03:59,984 INFO L225 Difference]: With dead ends: 2125 [2024-11-24 00:03:59,984 INFO L226 Difference]: Without dead ends: 2077 [2024-11-24 00:03:59,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=262, Invalid=1718, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 00:03:59,986 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 127 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:03:59,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 607 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:03:59,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2024-11-24 00:04:00,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2075. [2024-11-24 00:04:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1984 states have (on average 1.278225806451613) internal successors, (2536), 2011 states have internal predecessors, (2536), 61 states have call successors, (61), 2 states have call predecessors, (61), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 00:04:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2658 transitions. [2024-11-24 00:04:00,176 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2658 transitions. Word has length 119 [2024-11-24 00:04:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:00,176 INFO L471 AbstractCegarLoop]: Abstraction has 2075 states and 2658 transitions. [2024-11-24 00:04:00,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.846153846153847) internal successors, (256), 26 states have internal predecessors, (256), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-24 00:04:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2658 transitions. [2024-11-24 00:04:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:04:00,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:00,178 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:00,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-11-24 00:04:00,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2024-11-24 00:04:00,379 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:00,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:00,380 INFO L85 PathProgramCache]: Analyzing trace with hash 541629088, now seen corresponding path program 1 times [2024-11-24 00:04:00,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:00,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953804448] [2024-11-24 00:04:00,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:00,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:04:00,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998508280] [2024-11-24 00:04:00,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:00,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:00,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:00,408 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:00,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-24 00:04:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:00,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:04:00,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:00,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:02,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953804448] [2024-11-24 00:04:02,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998508280] [2024-11-24 00:04:02,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998508280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:02,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:04:02,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-24 00:04:02,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379803966] [2024-11-24 00:04:02,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:02,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 00:04:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:02,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 00:04:02,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:04:02,422 INFO L87 Difference]: Start difference. First operand 2075 states and 2658 transitions. Second operand has 22 states, 21 states have (on average 9.047619047619047) internal successors, (190), 22 states have internal predecessors, (190), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:04:05,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:05,121 INFO L93 Difference]: Finished difference Result 2183 states and 2781 transitions. [2024-11-24 00:04:05,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 00:04:05,122 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.047619047619047) internal successors, (190), 22 states have internal predecessors, (190), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 120 [2024-11-24 00:04:05,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:05,125 INFO L225 Difference]: With dead ends: 2183 [2024-11-24 00:04:05,125 INFO L226 Difference]: Without dead ends: 2182 [2024-11-24 00:04:05,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=260, Invalid=1462, Unknown=0, NotChecked=0, Total=1722 [2024-11-24 00:04:05,127 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 300 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:05,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 1099 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:04:05,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2024-11-24 00:04:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2134. [2024-11-24 00:04:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 2041 states have (on average 1.282704556589907) internal successors, (2618), 2068 states have internal predecessors, (2618), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 00:04:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 2744 transitions. [2024-11-24 00:04:05,375 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 2744 transitions. Word has length 120 [2024-11-24 00:04:05,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:05,376 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 2744 transitions. [2024-11-24 00:04:05,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.047619047619047) internal successors, (190), 22 states have internal predecessors, (190), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:04:05,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 2744 transitions. [2024-11-24 00:04:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:04:05,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:05,378 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:05,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-24 00:04:05,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-11-24 00:04:05,580 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:05,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:05,580 INFO L85 PathProgramCache]: Analyzing trace with hash -519824427, now seen corresponding path program 1 times [2024-11-24 00:04:05,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:05,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53293208] [2024-11-24 00:04:05,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:05,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:04:05,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139658237] [2024-11-24 00:04:05,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:05,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:05,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:05,609 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:05,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-24 00:04:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:05,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-24 00:04:05,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:04:06,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:04:07,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:07,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53293208] [2024-11-24 00:04:07,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:07,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139658237] [2024-11-24 00:04:07,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139658237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:07,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:04:07,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-11-24 00:04:07,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501419664] [2024-11-24 00:04:07,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:07,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 00:04:07,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:07,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 00:04:07,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:04:07,408 INFO L87 Difference]: Start difference. First operand 2134 states and 2744 transitions. Second operand has 29 states, 28 states have (on average 7.285714285714286) internal successors, (204), 29 states have internal predecessors, (204), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:04:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:11,771 INFO L93 Difference]: Finished difference Result 2181 states and 2790 transitions. [2024-11-24 00:04:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-24 00:04:11,772 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 7.285714285714286) internal successors, (204), 29 states have internal predecessors, (204), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 123 [2024-11-24 00:04:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:11,775 INFO L225 Difference]: With dead ends: 2181 [2024-11-24 00:04:11,775 INFO L226 Difference]: Without dead ends: 2180 [2024-11-24 00:04:11,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=410, Invalid=2452, Unknown=0, NotChecked=0, Total=2862 [2024-11-24 00:04:11,777 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 542 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 2549 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:11,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 699 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2549 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:04:11,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2024-11-24 00:04:11,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2140. [2024-11-24 00:04:11,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2047 states have (on average 1.283341475329751) internal successors, (2627), 2074 states have internal predecessors, (2627), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 00:04:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2753 transitions. [2024-11-24 00:04:11,942 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2753 transitions. Word has length 123 [2024-11-24 00:04:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:11,942 INFO L471 AbstractCegarLoop]: Abstraction has 2140 states and 2753 transitions. [2024-11-24 00:04:11,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 7.285714285714286) internal successors, (204), 29 states have internal predecessors, (204), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:04:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2753 transitions. [2024-11-24 00:04:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-24 00:04:11,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:11,944 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:04:11,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-11-24 00:04:12,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-11-24 00:04:12,145 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:12,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1594938056, now seen corresponding path program 2 times [2024-11-24 00:04:12,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:12,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988083934] [2024-11-24 00:04:12,146 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:12,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:12,174 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:12,174 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:04:12,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184280836] [2024-11-24 00:04:12,175 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:12,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:12,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:12,180 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:12,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-24 00:04:12,286 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:12,286 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:12,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:04:12,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 77 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:12,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:13,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:13,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988083934] [2024-11-24 00:04:13,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:13,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184280836] [2024-11-24 00:04:13,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184280836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:13,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:13,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-24 00:04:13,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744761861] [2024-11-24 00:04:13,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:13,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:04:13,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:13,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:04:13,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:04:13,127 INFO L87 Difference]: Start difference. First operand 2140 states and 2753 transitions. Second operand has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:04:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:14,617 INFO L93 Difference]: Finished difference Result 2554 states and 3284 transitions. [2024-11-24 00:04:14,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:04:14,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 126 [2024-11-24 00:04:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:14,620 INFO L225 Difference]: With dead ends: 2554 [2024-11-24 00:04:14,620 INFO L226 Difference]: Without dead ends: 2552 [2024-11-24 00:04:14,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:04:14,621 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 270 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:14,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 878 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:04:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-24 00:04:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2381. [2024-11-24 00:04:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2281 states have (on average 1.279263480929417) internal successors, (2918), 2308 states have internal predecessors, (2918), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:04:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3058 transitions. [2024-11-24 00:04:14,816 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3058 transitions. Word has length 126 [2024-11-24 00:04:14,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:14,816 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3058 transitions. [2024-11-24 00:04:14,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.23076923076923) internal successors, (107), 14 states have internal predecessors, (107), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:04:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3058 transitions. [2024-11-24 00:04:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-24 00:04:14,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:14,818 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:04:14,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-24 00:04:15,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:15,018 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:15,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:15,019 INFO L85 PathProgramCache]: Analyzing trace with hash -766669752, now seen corresponding path program 3 times [2024-11-24 00:04:15,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:15,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835554894] [2024-11-24 00:04:15,019 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:04:15,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:15,039 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 00:04:15,039 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:04:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150985915] [2024-11-24 00:04:15,040 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:04:15,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:15,045 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-24 00:04:15,175 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:04:15,176 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:15,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 00:04:15,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:19,827 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int) (|ULTIMATE.start_main_~X~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (<= |c_ULTIMATE.start_main_~xy~0#1| .cse0) (exists ((|ULTIMATE.start_main_~x~0#1| Int) (|ULTIMATE.start_main_~Y~0#1| Int)) (let ((.cse1 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (<= |ULTIMATE.start_main_~Y~0#1| 10) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= (+ .cse0 |ULTIMATE.start_main_~Y~0#1|) (+ .cse1 4611686018427387904)) (= |c_ULTIMATE.start_main_~yx~0#1| .cse1))))))) is different from true [2024-11-24 00:04:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 15 not checked. [2024-11-24 00:04:19,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:21,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835554894] [2024-11-24 00:04:21,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150985915] [2024-11-24 00:04:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150985915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:21,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:21,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-24 00:04:21,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84152102] [2024-11-24 00:04:21,083 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 00:04:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:21,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 00:04:21,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=283, Unknown=1, NotChecked=34, Total=380 [2024-11-24 00:04:21,085 INFO L87 Difference]: Start difference. First operand 2381 states and 3058 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:04:23,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:23,885 INFO L93 Difference]: Finished difference Result 2480 states and 3172 transitions. [2024-11-24 00:04:23,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:04:23,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 126 [2024-11-24 00:04:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:23,889 INFO L225 Difference]: With dead ends: 2480 [2024-11-24 00:04:23,889 INFO L226 Difference]: Without dead ends: 2479 [2024-11-24 00:04:23,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=169, Invalid=536, Unknown=1, NotChecked=50, Total=756 [2024-11-24 00:04:23,890 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 224 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 187 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:23,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 190 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 774 Invalid, 0 Unknown, 187 Unchecked, 2.1s Time] [2024-11-24 00:04:23,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-11-24 00:04:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2381. [2024-11-24 00:04:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2281 states have (on average 1.2735642262165716) internal successors, (2905), 2308 states have internal predecessors, (2905), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-24 00:04:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3045 transitions. [2024-11-24 00:04:24,125 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3045 transitions. Word has length 126 [2024-11-24 00:04:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:24,125 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3045 transitions. [2024-11-24 00:04:24,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:04:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3045 transitions. [2024-11-24 00:04:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:04:24,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:24,126 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:24,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:24,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:24,327 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:24,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash -532384897, now seen corresponding path program 2 times [2024-11-24 00:04:24,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:24,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152101940] [2024-11-24 00:04:24,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:24,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:24,340 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:24,340 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:24,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:24,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152101940] [2024-11-24 00:04:24,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152101940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:24,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470205641] [2024-11-24 00:04:24,442 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:24,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:24,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:24,445 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:24,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-24 00:04:24,582 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:24,582 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:24,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:04:24,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:24,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 40 proven. 66 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:25,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470205641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:25,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:04:25,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-24 00:04:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979999649] [2024-11-24 00:04:25,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:25,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:04:25,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:25,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:04:25,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:04:25,126 INFO L87 Difference]: Start difference. First operand 2381 states and 3045 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:04:26,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:26,016 INFO L93 Difference]: Finished difference Result 2706 states and 3455 transitions. [2024-11-24 00:04:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:04:26,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 127 [2024-11-24 00:04:26,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:26,019 INFO L225 Difference]: With dead ends: 2706 [2024-11-24 00:04:26,019 INFO L226 Difference]: Without dead ends: 2193 [2024-11-24 00:04:26,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:04:26,021 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 85 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:26,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 559 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:04:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2024-11-24 00:04:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2172. [2024-11-24 00:04:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2078 states have (on average 1.2781520692974013) internal successors, (2656), 2105 states have internal predecessors, (2656), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 00:04:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 2784 transitions. [2024-11-24 00:04:26,195 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 2784 transitions. Word has length 127 [2024-11-24 00:04:26,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:26,195 INFO L471 AbstractCegarLoop]: Abstraction has 2172 states and 2784 transitions. [2024-11-24 00:04:26,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:04:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 2784 transitions. [2024-11-24 00:04:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-24 00:04:26,196 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:26,197 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:26,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:26,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:26,397 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:26,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:26,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1569389275, now seen corresponding path program 1 times [2024-11-24 00:04:26,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:26,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344298951] [2024-11-24 00:04:26,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:26,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:04:26,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [856505390] [2024-11-24 00:04:26,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:26,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:26,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:26,424 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:26,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-24 00:04:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:26,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:04:26,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:28,767 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:04:28,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:29,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:29,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344298951] [2024-11-24 00:04:29,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:29,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856505390] [2024-11-24 00:04:29,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856505390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:29,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:29,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-24 00:04:29,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879773178] [2024-11-24 00:04:29,329 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:29,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:04:29,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:29,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:04:29,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:04:29,331 INFO L87 Difference]: Start difference. First operand 2172 states and 2784 transitions. Second operand has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:04:31,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:31,745 INFO L93 Difference]: Finished difference Result 2185 states and 2790 transitions. [2024-11-24 00:04:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:04:31,746 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 127 [2024-11-24 00:04:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:31,748 INFO L225 Difference]: With dead ends: 2185 [2024-11-24 00:04:31,748 INFO L226 Difference]: Without dead ends: 2183 [2024-11-24 00:04:31,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=156, Invalid=774, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:04:31,749 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 287 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:31,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 853 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:04:31,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2024-11-24 00:04:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2176. [2024-11-24 00:04:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2082 states have (on average 1.2776176753121997) internal successors, (2660), 2109 states have internal predecessors, (2660), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-24 00:04:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 2788 transitions. [2024-11-24 00:04:31,963 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 2788 transitions. Word has length 127 [2024-11-24 00:04:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:31,963 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 2788 transitions. [2024-11-24 00:04:31,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:04:31,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 2788 transitions. [2024-11-24 00:04:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:04:31,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:31,965 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:31,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-24 00:04:32,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-24 00:04:32,165 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:32,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash -567850582, now seen corresponding path program 1 times [2024-11-24 00:04:32,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:32,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045938157] [2024-11-24 00:04:32,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:32,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:04:32,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854216979] [2024-11-24 00:04:32,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:32,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:32,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:32,185 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:32,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-24 00:04:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:32,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:04:32,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:32,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:33,944 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:04:33,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:33,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045938157] [2024-11-24 00:04:33,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:33,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854216979] [2024-11-24 00:04:33,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854216979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:33,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:04:33,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-24 00:04:33,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656264198] [2024-11-24 00:04:33,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:33,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:04:33,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:33,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:04:33,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:04:33,947 INFO L87 Difference]: Start difference. First operand 2176 states and 2788 transitions. Second operand has 26 states, 25 states have (on average 8.24) internal successors, (206), 26 states have internal predecessors, (206), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:04:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:43,089 INFO L93 Difference]: Finished difference Result 3179 states and 4104 transitions. [2024-11-24 00:04:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-24 00:04:43,090 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.24) internal successors, (206), 26 states have internal predecessors, (206), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 128 [2024-11-24 00:04:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:43,093 INFO L225 Difference]: With dead ends: 3179 [2024-11-24 00:04:43,093 INFO L226 Difference]: Without dead ends: 3177 [2024-11-24 00:04:43,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1502 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=751, Invalid=5569, Unknown=0, NotChecked=0, Total=6320 [2024-11-24 00:04:43,094 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 539 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 4267 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 4315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:43,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1342 Invalid, 4315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4267 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-24 00:04:43,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2024-11-24 00:04:43,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2932. [2024-11-24 00:04:43,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2815 states have (on average 1.291651865008881) internal successors, (3636), 2842 states have internal predecessors, (3636), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 00:04:43,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 3810 transitions. [2024-11-24 00:04:43,344 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 3810 transitions. Word has length 128 [2024-11-24 00:04:43,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:43,344 INFO L471 AbstractCegarLoop]: Abstraction has 2932 states and 3810 transitions. [2024-11-24 00:04:43,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.24) internal successors, (206), 26 states have internal predecessors, (206), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:04:43,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 3810 transitions. [2024-11-24 00:04:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-24 00:04:43,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:43,346 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:43,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-24 00:04:43,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-24 00:04:43,546 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:43,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1964745514, now seen corresponding path program 2 times [2024-11-24 00:04:43,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:43,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846436334] [2024-11-24 00:04:43,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:43,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:43,563 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:43,563 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:04:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460536254] [2024-11-24 00:04:43,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:43,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:43,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:43,567 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:43,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-24 00:04:43,657 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:43,657 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:43,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 00:04:43,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 6 proven. 109 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:04:44,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:46,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:46,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846436334] [2024-11-24 00:04:46,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:46,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460536254] [2024-11-24 00:04:46,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460536254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:04:46,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:04:46,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-24 00:04:46,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128810925] [2024-11-24 00:04:46,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:46,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:04:46,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:46,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:04:46,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:04:46,430 INFO L87 Difference]: Start difference. First operand 2932 states and 3810 transitions. Second operand has 20 states, 19 states have (on average 5.894736842105263) internal successors, (112), 20 states have internal predecessors, (112), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:04:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:49,121 INFO L93 Difference]: Finished difference Result 2953 states and 3831 transitions. [2024-11-24 00:04:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:04:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.894736842105263) internal successors, (112), 20 states have internal predecessors, (112), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 128 [2024-11-24 00:04:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:49,125 INFO L225 Difference]: With dead ends: 2953 [2024-11-24 00:04:49,125 INFO L226 Difference]: Without dead ends: 2951 [2024-11-24 00:04:49,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:04:49,126 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 105 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:49,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 927 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:04:49,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2024-11-24 00:04:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2935. [2024-11-24 00:04:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2818 states have (on average 1.2916962384669979) internal successors, (3640), 2845 states have internal predecessors, (3640), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 00:04:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 3814 transitions. [2024-11-24 00:04:49,382 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 3814 transitions. Word has length 128 [2024-11-24 00:04:49,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:49,382 INFO L471 AbstractCegarLoop]: Abstraction has 2935 states and 3814 transitions. [2024-11-24 00:04:49,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.894736842105263) internal successors, (112), 20 states have internal predecessors, (112), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:04:49,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 3814 transitions. [2024-11-24 00:04:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-24 00:04:49,383 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:49,383 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:49,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-11-24 00:04:49,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2024-11-24 00:04:49,584 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:49,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:49,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1740284283, now seen corresponding path program 1 times [2024-11-24 00:04:49,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:49,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691046037] [2024-11-24 00:04:49,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:49,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:04:49,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787029283] [2024-11-24 00:04:49,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:04:49,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:49,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:49,616 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:49,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-24 00:04:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:04:49,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 00:04:49,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:04:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:04:50,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:04:51,906 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 72 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:04:51,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:04:51,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691046037] [2024-11-24 00:04:51,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:04:51,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787029283] [2024-11-24 00:04:51,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787029283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:04:51,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:04:51,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-11-24 00:04:51,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779537786] [2024-11-24 00:04:51,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:04:51,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 00:04:51,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:04:51,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 00:04:51,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2024-11-24 00:04:51,909 INFO L87 Difference]: Start difference. First operand 2935 states and 3814 transitions. Second operand has 31 states, 30 states have (on average 7.2) internal successors, (216), 31 states have internal predecessors, (216), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:04:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:04:56,837 INFO L93 Difference]: Finished difference Result 2984 states and 3859 transitions. [2024-11-24 00:04:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-24 00:04:56,838 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 7.2) internal successors, (216), 31 states have internal predecessors, (216), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 129 [2024-11-24 00:04:56,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:04:56,842 INFO L225 Difference]: With dead ends: 2984 [2024-11-24 00:04:56,842 INFO L226 Difference]: Without dead ends: 2967 [2024-11-24 00:04:56,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=563, Invalid=3343, Unknown=0, NotChecked=0, Total=3906 [2024-11-24 00:04:56,844 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 581 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:04:56,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 551 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:04:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2024-11-24 00:04:57,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2919. [2024-11-24 00:04:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2802 states have (on average 1.2930049964311205) internal successors, (3623), 2829 states have internal predecessors, (3623), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-24 00:04:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 3797 transitions. [2024-11-24 00:04:57,088 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 3797 transitions. Word has length 129 [2024-11-24 00:04:57,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:04:57,089 INFO L471 AbstractCegarLoop]: Abstraction has 2919 states and 3797 transitions. [2024-11-24 00:04:57,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 7.2) internal successors, (216), 31 states have internal predecessors, (216), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:04:57,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 3797 transitions. [2024-11-24 00:04:57,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-24 00:04:57,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:04:57,090 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:04:57,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-24 00:04:57,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:57,291 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:04:57,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:04:57,291 INFO L85 PathProgramCache]: Analyzing trace with hash 649574205, now seen corresponding path program 2 times [2024-11-24 00:04:57,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:04:57,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495980300] [2024-11-24 00:04:57,291 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:04:57,307 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:57,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:04:57,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322097559] [2024-11-24 00:04:57,308 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:04:57,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:04:57,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:04:57,313 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:04:57,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-24 00:04:57,390 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:04:57,390 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:04:57,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-24 00:04:57,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 6 proven. 108 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-24 00:05:00,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:01,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:01,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495980300] [2024-11-24 00:05:01,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:05:01,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322097559] [2024-11-24 00:05:01,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322097559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:01,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:05:01,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-24 00:05:01,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387170962] [2024-11-24 00:05:01,057 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:05:01,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:05:01,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:01,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:05:01,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:05:01,058 INFO L87 Difference]: Start difference. First operand 2919 states and 3797 transitions. Second operand has 23 states, 22 states have (on average 5.136363636363637) internal successors, (113), 22 states have internal predecessors, (113), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:05:05,198 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] [2024-11-24 00:05:08,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:14,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:17,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:25,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:29,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:33,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:37,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:41,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:46,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:05:48,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:05:48,228 INFO L93 Difference]: Finished difference Result 3060 states and 3970 transitions. [2024-11-24 00:05:48,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 00:05:48,228 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.136363636363637) internal successors, (113), 22 states have internal predecessors, (113), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 129 [2024-11-24 00:05:48,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:05:48,231 INFO L225 Difference]: With dead ends: 3060 [2024-11-24 00:05:48,231 INFO L226 Difference]: Without dead ends: 3058 [2024-11-24 00:05:48,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:05:48,232 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 330 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 3380 mSolverCounterSat, 6 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3380 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:05:48,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1278 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3380 Invalid, 9 Unknown, 0 Unchecked, 44.0s Time] [2024-11-24 00:05:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2024-11-24 00:05:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 3010. [2024-11-24 00:05:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3010 states, 2891 states have (on average 1.2960913178830855) internal successors, (3747), 2918 states have internal predecessors, (3747), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-24 00:05:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 3925 transitions. [2024-11-24 00:05:48,460 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 3925 transitions. Word has length 129 [2024-11-24 00:05:48,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:05:48,460 INFO L471 AbstractCegarLoop]: Abstraction has 3010 states and 3925 transitions. [2024-11-24 00:05:48,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.136363636363637) internal successors, (113), 22 states have internal predecessors, (113), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-24 00:05:48,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 3925 transitions. [2024-11-24 00:05:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 00:05:48,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:05:48,462 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:05:48,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-24 00:05:48,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:48,662 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:05:48,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:48,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1253281871, now seen corresponding path program 3 times [2024-11-24 00:05:48,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:48,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919663945] [2024-11-24 00:05:48,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:05:48,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:48,683 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 00:05:48,683 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:05:48,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940765879] [2024-11-24 00:05:48,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:05:48,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:05:48,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:05:48,689 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:05:48,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-24 00:05:48,779 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:05:48,779 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:05:48,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:05:48,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:05:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 60 proven. 23 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-24 00:05:50,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:05:52,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:52,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919663945] [2024-11-24 00:05:52,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:05:52,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940765879] [2024-11-24 00:05:52,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940765879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:05:52,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:05:52,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:05:52,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591867226] [2024-11-24 00:05:52,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:05:52,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:05:52,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:52,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:05:52,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:05:52,119 INFO L87 Difference]: Start difference. First operand 3010 states and 3925 transitions. Second operand has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:05:56,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:06:00,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:06:07,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:06:17,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:06:21,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-24 00:06:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:22,875 INFO L93 Difference]: Finished difference Result 3138 states and 4070 transitions. [2024-11-24 00:06:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 00:06:22,875 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 131 [2024-11-24 00:06:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:22,878 INFO L225 Difference]: With dead ends: 3138 [2024-11-24 00:06:22,878 INFO L226 Difference]: Without dead ends: 3137 [2024-11-24 00:06:22,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=293, Invalid=1266, Unknown=1, NotChecked=0, Total=1560 [2024-11-24 00:06:22,879 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 239 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:22,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 376 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1592 Invalid, 4 Unknown, 0 Unchecked, 23.0s Time] [2024-11-24 00:06:22,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2024-11-24 00:06:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3010. [2024-11-24 00:06:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3010 states, 2891 states have (on average 1.279488066413006) internal successors, (3699), 2918 states have internal predecessors, (3699), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-24 00:06:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 3877 transitions. [2024-11-24 00:06:23,145 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 3877 transitions. Word has length 131 [2024-11-24 00:06:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:23,145 INFO L471 AbstractCegarLoop]: Abstraction has 3010 states and 3877 transitions. [2024-11-24 00:06:23,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:06:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 3877 transitions. [2024-11-24 00:06:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 00:06:23,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:23,147 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:23,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-24 00:06:23,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:23,347 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:06:23,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:23,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1470555039, now seen corresponding path program 1 times [2024-11-24 00:06:23,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:23,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196536761] [2024-11-24 00:06:23,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:23,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:06:23,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455791541] [2024-11-24 00:06:23,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:23,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:23,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:23,379 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:23,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-24 00:06:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:23,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:06:23,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:06:24,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:25,435 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:06:25,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:25,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196536761] [2024-11-24 00:06:25,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:06:25,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455791541] [2024-11-24 00:06:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455791541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:06:25,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:06:25,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-24 00:06:25,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497214206] [2024-11-24 00:06:25,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:25,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:06:25,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:25,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:06:25,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:06:25,437 INFO L87 Difference]: Start difference. First operand 3010 states and 3877 transitions. Second operand has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:06:29,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:29,137 INFO L93 Difference]: Finished difference Result 4572 states and 5905 transitions. [2024-11-24 00:06:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 00:06:29,137 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 131 [2024-11-24 00:06:29,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:29,141 INFO L225 Difference]: With dead ends: 4572 [2024-11-24 00:06:29,141 INFO L226 Difference]: Without dead ends: 4568 [2024-11-24 00:06:29,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=383, Invalid=1597, Unknown=0, NotChecked=0, Total=1980 [2024-11-24 00:06:29,142 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 1122 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:29,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 829 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:06:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4568 states. [2024-11-24 00:06:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4568 to 4141. [2024-11-24 00:06:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3985 states have (on average 1.257465495608532) internal successors, (5011), 4012 states have internal predecessors, (5011), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 00:06:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5263 transitions. [2024-11-24 00:06:29,511 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5263 transitions. Word has length 131 [2024-11-24 00:06:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:29,511 INFO L471 AbstractCegarLoop]: Abstraction has 4141 states and 5263 transitions. [2024-11-24 00:06:29,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:06:29,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5263 transitions. [2024-11-24 00:06:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 00:06:29,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:29,512 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:29,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-24 00:06:29,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:29,713 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:06:29,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash -197032264, now seen corresponding path program 3 times [2024-11-24 00:06:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:29,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90567203] [2024-11-24 00:06:29,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:06:29,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:29,737 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 00:06:29,737 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:06:29,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225587437] [2024-11-24 00:06:29,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:06:29,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:29,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:29,745 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:29,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-24 00:06:29,808 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:06:29,808 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:29,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:06:29,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 59 proven. 27 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-24 00:06:31,025 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:32,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:32,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90567203] [2024-11-24 00:06:32,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:06:32,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225587437] [2024-11-24 00:06:32,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225587437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:32,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:32,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:06:32,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460686602] [2024-11-24 00:06:32,136 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:32,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:06:32,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:32,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:06:32,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:06:32,137 INFO L87 Difference]: Start difference. First operand 4141 states and 5263 transitions. Second operand has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 15 states have internal predecessors, (87), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:06:39,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:39,418 INFO L93 Difference]: Finished difference Result 4304 states and 5449 transitions. [2024-11-24 00:06:39,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:06:39,418 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 15 states have internal predecessors, (87), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 132 [2024-11-24 00:06:39,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:39,422 INFO L225 Difference]: With dead ends: 4304 [2024-11-24 00:06:39,422 INFO L226 Difference]: Without dead ends: 4303 [2024-11-24 00:06:39,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:06:39,423 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 242 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:39,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 231 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-24 00:06:39,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2024-11-24 00:06:39,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 4141. [2024-11-24 00:06:39,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3985 states have (on average 1.2409033877038895) internal successors, (4945), 4012 states have internal predecessors, (4945), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 00:06:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5197 transitions. [2024-11-24 00:06:39,875 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5197 transitions. Word has length 132 [2024-11-24 00:06:39,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:39,875 INFO L471 AbstractCegarLoop]: Abstraction has 4141 states and 5197 transitions. [2024-11-24 00:06:39,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 15 states have internal predecessors, (87), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:06:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5197 transitions. [2024-11-24 00:06:39,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 00:06:39,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:39,877 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:39,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2024-11-24 00:06:40,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:40,077 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:06:40,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:40,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1657433982, now seen corresponding path program 2 times [2024-11-24 00:06:40,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:40,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975307076] [2024-11-24 00:06:40,078 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:40,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:40,098 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:40,098 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:06:40,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962037444] [2024-11-24 00:06:40,099 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:40,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:40,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:40,101 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:40,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-24 00:06:40,176 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:40,176 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:40,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:06:40,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 72 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:06:40,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:41,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:41,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975307076] [2024-11-24 00:06:41,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:06:41,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962037444] [2024-11-24 00:06:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962037444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:41,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:41,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:06:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129337668] [2024-11-24 00:06:41,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:41,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:06:41,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:41,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:06:41,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:06:41,160 INFO L87 Difference]: Start difference. First operand 4141 states and 5197 transitions. Second operand has 15 states, 14 states have (on average 8.071428571428571) internal successors, (113), 15 states have internal predecessors, (113), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:06:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:43,032 INFO L93 Difference]: Finished difference Result 4236 states and 5279 transitions. [2024-11-24 00:06:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 00:06:43,032 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.071428571428571) internal successors, (113), 15 states have internal predecessors, (113), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 132 [2024-11-24 00:06:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:43,036 INFO L225 Difference]: With dead ends: 4236 [2024-11-24 00:06:43,036 INFO L226 Difference]: Without dead ends: 4234 [2024-11-24 00:06:43,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=194, Invalid=798, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:06:43,037 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 257 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:43,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 1256 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:06:43,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2024-11-24 00:06:43,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4154. [2024-11-24 00:06:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4154 states, 3998 states have (on average 1.2301150575287645) internal successors, (4918), 4025 states have internal predecessors, (4918), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 00:06:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4154 states to 4154 states and 5170 transitions. [2024-11-24 00:06:43,445 INFO L78 Accepts]: Start accepts. Automaton has 4154 states and 5170 transitions. Word has length 132 [2024-11-24 00:06:43,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:43,446 INFO L471 AbstractCegarLoop]: Abstraction has 4154 states and 5170 transitions. [2024-11-24 00:06:43,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.071428571428571) internal successors, (113), 15 states have internal predecessors, (113), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:06:43,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4154 states and 5170 transitions. [2024-11-24 00:06:43,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-24 00:06:43,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:43,446 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:43,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-24 00:06:43,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-24 00:06:43,647 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:06:43,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:43,647 INFO L85 PathProgramCache]: Analyzing trace with hash 159154177, now seen corresponding path program 2 times [2024-11-24 00:06:43,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:43,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400135777] [2024-11-24 00:06:43,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:43,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:43,663 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:43,663 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:06:43,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699052179] [2024-11-24 00:06:43,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:43,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:43,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:43,667 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:43,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-24 00:06:43,743 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:43,743 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:43,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:06:43,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:06:44,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:06:45,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:45,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400135777] [2024-11-24 00:06:45,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:06:45,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699052179] [2024-11-24 00:06:45,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699052179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:06:45,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:06:45,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-24 00:06:45,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655851137] [2024-11-24 00:06:45,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:45,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:06:45,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:45,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:06:45,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:06:45,677 INFO L87 Difference]: Start difference. First operand 4154 states and 5170 transitions. Second operand has 23 states, 22 states have (on average 10.227272727272727) internal successors, (225), 23 states have internal predecessors, (225), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:06:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:50,416 INFO L93 Difference]: Finished difference Result 6580 states and 8367 transitions. [2024-11-24 00:06:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-24 00:06:50,417 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.227272727272727) internal successors, (225), 23 states have internal predecessors, (225), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 133 [2024-11-24 00:06:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:50,422 INFO L225 Difference]: With dead ends: 6580 [2024-11-24 00:06:50,422 INFO L226 Difference]: Without dead ends: 6576 [2024-11-24 00:06:50,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=392, Invalid=1678, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 00:06:50,424 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1716 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:50,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 1751 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:06:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6576 states. [2024-11-24 00:06:51,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6576 to 5826. [2024-11-24 00:06:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5614 states have (on average 1.2244389027431422) internal successors, (6874), 5641 states have internal predecessors, (6874), 182 states have call successors, (182), 2 states have call predecessors, (182), 2 states have return successors, (182), 182 states have call predecessors, (182), 182 states have call successors, (182) [2024-11-24 00:06:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 7238 transitions. [2024-11-24 00:06:51,043 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 7238 transitions. Word has length 133 [2024-11-24 00:06:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:51,043 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 7238 transitions. [2024-11-24 00:06:51,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.227272727272727) internal successors, (225), 23 states have internal predecessors, (225), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:06:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 7238 transitions. [2024-11-24 00:06:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-24 00:06:51,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:51,044 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:51,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-11-24 00:06:51,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2024-11-24 00:06:51,244 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:06:51,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:51,245 INFO L85 PathProgramCache]: Analyzing trace with hash 638812260, now seen corresponding path program 2 times [2024-11-24 00:06:51,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:51,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634767213] [2024-11-24 00:06:51,245 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:51,266 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:51,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:06:51,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173989440] [2024-11-24 00:06:51,267 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:51,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:51,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:51,275 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:51,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-24 00:06:51,403 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:51,404 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:51,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:06:51,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:06:52,213 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:52,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:52,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634767213] [2024-11-24 00:06:52,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:06:52,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173989440] [2024-11-24 00:06:52,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173989440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:52,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:52,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:06:52,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590120089] [2024-11-24 00:06:52,781 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:52,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:06:52,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:52,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:06:52,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:06:52,782 INFO L87 Difference]: Start difference. First operand 5826 states and 7238 transitions. Second operand has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:06:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:55,527 INFO L93 Difference]: Finished difference Result 6402 states and 7968 transitions. [2024-11-24 00:06:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:06:55,528 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 134 [2024-11-24 00:06:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:55,534 INFO L225 Difference]: With dead ends: 6402 [2024-11-24 00:06:55,534 INFO L226 Difference]: Without dead ends: 6400 [2024-11-24 00:06:55,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:06:55,536 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 147 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:55,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 855 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 00:06:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2024-11-24 00:06:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 5508. [2024-11-24 00:06:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5508 states, 5306 states have (on average 1.2193742932529212) internal successors, (6470), 5332 states have internal predecessors, (6470), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-24 00:06:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5508 states to 5508 states and 6816 transitions. [2024-11-24 00:06:56,187 INFO L78 Accepts]: Start accepts. Automaton has 5508 states and 6816 transitions. Word has length 134 [2024-11-24 00:06:56,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:06:56,188 INFO L471 AbstractCegarLoop]: Abstraction has 5508 states and 6816 transitions. [2024-11-24 00:06:56,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.214285714285714) internal successors, (115), 15 states have internal predecessors, (115), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:06:56,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5508 states and 6816 transitions. [2024-11-24 00:06:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-24 00:06:56,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:56,188 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:56,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-24 00:06:56,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2024-11-24 00:06:56,389 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:06:56,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:56,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1671656349, now seen corresponding path program 2 times [2024-11-24 00:06:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:56,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782650731] [2024-11-24 00:06:56,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:56,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:56,406 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:56,407 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:06:56,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556486830] [2024-11-24 00:06:56,408 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:06:56,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:06:56,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:56,415 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:06:56,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-24 00:06:56,525 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:06:56,525 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:06:56,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:06:56,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:06:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:06:57,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:06:57,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782650731] [2024-11-24 00:06:57,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:06:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556486830] [2024-11-24 00:06:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556486830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:06:57,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:06:57,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-24 00:06:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103584039] [2024-11-24 00:06:57,538 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:06:57,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:06:57,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:57,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:06:57,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:06:57,539 INFO L87 Difference]: Start difference. First operand 5508 states and 6816 transitions. Second operand has 16 states, 15 states have (on average 7.733333333333333) internal successors, (116), 16 states have internal predecessors, (116), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:06:59,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:06:59,809 INFO L93 Difference]: Finished difference Result 5583 states and 6874 transitions. [2024-11-24 00:06:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 00:06:59,809 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.733333333333333) internal successors, (116), 16 states have internal predecessors, (116), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 135 [2024-11-24 00:06:59,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:06:59,815 INFO L225 Difference]: With dead ends: 5583 [2024-11-24 00:06:59,815 INFO L226 Difference]: Without dead ends: 5581 [2024-11-24 00:06:59,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=1016, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:06:59,817 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 305 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:06:59,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1212 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 00:06:59,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5581 states. [2024-11-24 00:07:00,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5581 to 5511. [2024-11-24 00:07:00,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5511 states, 5309 states have (on average 1.214729704275758) internal successors, (6449), 5335 states have internal predecessors, (6449), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-24 00:07:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5511 states to 5511 states and 6795 transitions. [2024-11-24 00:07:00,404 INFO L78 Accepts]: Start accepts. Automaton has 5511 states and 6795 transitions. Word has length 135 [2024-11-24 00:07:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:00,405 INFO L471 AbstractCegarLoop]: Abstraction has 5511 states and 6795 transitions. [2024-11-24 00:07:00,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.733333333333333) internal successors, (116), 16 states have internal predecessors, (116), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:07:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5511 states and 6795 transitions. [2024-11-24 00:07:00,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 00:07:00,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:00,405 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:00,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-24 00:07:00,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:00,606 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:07:00,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -281739194, now seen corresponding path program 2 times [2024-11-24 00:07:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:00,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383358824] [2024-11-24 00:07:00,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:07:00,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:00,624 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:07:00,624 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:07:00,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367029290] [2024-11-24 00:07:00,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:07:00,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:00,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:00,628 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:00,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-24 00:07:00,721 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:07:00,721 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:07:00,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 00:07:00,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:07:01,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:07:02,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383358824] [2024-11-24 00:07:02,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:07:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367029290] [2024-11-24 00:07:02,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367029290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:07:02,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:07:02,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-24 00:07:02,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452185302] [2024-11-24 00:07:02,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:02,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:07:02,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:02,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:07:02,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:07:02,692 INFO L87 Difference]: Start difference. First operand 5511 states and 6795 transitions. Second operand has 24 states, 23 states have (on average 9.652173913043478) internal successors, (222), 24 states have internal predecessors, (222), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:07:07,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:07:07,501 INFO L93 Difference]: Finished difference Result 5786 states and 7132 transitions. [2024-11-24 00:07:07,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-24 00:07:07,502 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 9.652173913043478) internal successors, (222), 24 states have internal predecessors, (222), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 136 [2024-11-24 00:07:07,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:07:07,507 INFO L225 Difference]: With dead ends: 5786 [2024-11-24 00:07:07,507 INFO L226 Difference]: Without dead ends: 5784 [2024-11-24 00:07:07,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=657, Invalid=3249, Unknown=0, NotChecked=0, Total=3906 [2024-11-24 00:07:07,508 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 652 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:07:07,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 787 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-24 00:07:07,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5784 states. [2024-11-24 00:07:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5784 to 5509. [2024-11-24 00:07:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5509 states, 5307 states have (on average 1.2134916148483135) internal successors, (6440), 5333 states have internal predecessors, (6440), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-24 00:07:08,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 6786 transitions. [2024-11-24 00:07:08,400 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 6786 transitions. Word has length 136 [2024-11-24 00:07:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:07:08,400 INFO L471 AbstractCegarLoop]: Abstraction has 5509 states and 6786 transitions. [2024-11-24 00:07:08,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 9.652173913043478) internal successors, (222), 24 states have internal predecessors, (222), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:07:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 6786 transitions. [2024-11-24 00:07:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-24 00:07:08,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:08,401 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:07:08,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2024-11-24 00:07:08,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:08,602 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:07:08,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:08,602 INFO L85 PathProgramCache]: Analyzing trace with hash 414936023, now seen corresponding path program 2 times [2024-11-24 00:07:08,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:08,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220069369] [2024-11-24 00:07:08,602 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:07:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:08,623 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:07:08,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:07:08,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459959166] [2024-11-24 00:07:08,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:07:08,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:08,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:08,629 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:08,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-24 00:07:08,714 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:07:08,714 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:07:08,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-24 00:07:08,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:07:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:07:10,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:07:21,044 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:07:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:21,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220069369] [2024-11-24 00:07:21,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:07:21,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459959166] [2024-11-24 00:07:21,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459959166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:07:21,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:07:21,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 43 [2024-11-24 00:07:21,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619999353] [2024-11-24 00:07:21,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:07:21,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-24 00:07:21,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:21,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-24 00:07:21,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1622, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 00:07:21,046 INFO L87 Difference]: Start difference. First operand 5509 states and 6786 transitions. Second operand has 44 states, 43 states have (on average 5.511627906976744) internal successors, (237), 44 states have internal predecessors, (237), 7 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:07:33,483 WARN L286 SmtUtils]: Spent 9.14s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:07:42,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:07:45,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:07:50,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:07:52,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:07:56,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:08:09,241 WARN L286 SmtUtils]: Spent 10.83s on a formula simplification that was a NOOP. DAG size: 103 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:09:08,957 WARN L286 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:09:35,836 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:09:47,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:09:50,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:10:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:09,737 INFO L93 Difference]: Finished difference Result 6876 states and 8525 transitions. [2024-11-24 00:10:09,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2024-11-24 00:10:09,737 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 5.511627906976744) internal successors, (237), 44 states have internal predecessors, (237), 7 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 137 [2024-11-24 00:10:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:09,742 INFO L225 Difference]: With dead ends: 6876 [2024-11-24 00:10:09,742 INFO L226 Difference]: Without dead ends: 6874 [2024-11-24 00:10:09,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5235 ImplicationChecksByTransitivity, 115.2s TimeCoverageRelationStatistics Valid=3057, Invalid=15303, Unknown=0, NotChecked=0, Total=18360 [2024-11-24 00:10:09,744 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 1622 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 6155 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 6282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 6155 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:09,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 675 Invalid, 6282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 6155 Invalid, 1 Unknown, 0 Unchecked, 60.8s Time] [2024-11-24 00:10:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6874 states. [2024-11-24 00:10:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6874 to 5808. [2024-11-24 00:10:10,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 5606 states have (on average 1.2104887620406708) internal successors, (6786), 5632 states have internal predecessors, (6786), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-24 00:10:10,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 7132 transitions. [2024-11-24 00:10:10,702 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 7132 transitions. Word has length 137 [2024-11-24 00:10:10,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:10,702 INFO L471 AbstractCegarLoop]: Abstraction has 5808 states and 7132 transitions. [2024-11-24 00:10:10,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 5.511627906976744) internal successors, (237), 44 states have internal predecessors, (237), 7 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-24 00:10:10,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 7132 transitions. [2024-11-24 00:10:10,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-24 00:10:10,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:10,703 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:10:10,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-24 00:10:10,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:10,904 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:10:10,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:10,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1946354263, now seen corresponding path program 3 times [2024-11-24 00:10:10,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:10,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010744889] [2024-11-24 00:10:10,904 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:10:10,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:10,936 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 00:10:10,936 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:10:10,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557322208] [2024-11-24 00:10:10,938 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:10:10,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:10,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:10,943 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:10,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-24 00:10:11,069 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:10:11,069 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:11,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:10:11,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 87 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-24 00:10:12,552 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:13,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:13,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010744889] [2024-11-24 00:10:13,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:10:13,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557322208] [2024-11-24 00:10:13,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557322208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:13,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:10:13,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-24 00:10:13,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145874852] [2024-11-24 00:10:13,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:13,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:10:13,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:13,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:10:13,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:10:13,677 INFO L87 Difference]: Start difference. First operand 5808 states and 7132 transitions. Second operand has 15 states, 14 states have (on average 6.571428571428571) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:10:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:17,826 INFO L93 Difference]: Finished difference Result 6022 states and 7395 transitions. [2024-11-24 00:10:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 00:10:17,826 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.571428571428571) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 137 [2024-11-24 00:10:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:17,832 INFO L225 Difference]: With dead ends: 6022 [2024-11-24 00:10:17,832 INFO L226 Difference]: Without dead ends: 6021 [2024-11-24 00:10:17,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=274, Invalid=1132, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:10:17,833 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 219 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:17,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 216 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:10:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-24 00:10:18,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 5808. [2024-11-24 00:10:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 5606 states have (on average 1.2046022119158044) internal successors, (6753), 5632 states have internal predecessors, (6753), 173 states have call successors, (173), 2 states have call predecessors, (173), 2 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-11-24 00:10:18,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 7099 transitions. [2024-11-24 00:10:18,452 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 7099 transitions. Word has length 137 [2024-11-24 00:10:18,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:18,452 INFO L471 AbstractCegarLoop]: Abstraction has 5808 states and 7099 transitions. [2024-11-24 00:10:18,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.571428571428571) internal successors, (92), 15 states have internal predecessors, (92), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-24 00:10:18,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 7099 transitions. [2024-11-24 00:10:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 00:10:18,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:18,453 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:10:18,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-24 00:10:18,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:18,653 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:10:18,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash -21885090, now seen corresponding path program 2 times [2024-11-24 00:10:18,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:18,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202553613] [2024-11-24 00:10:18,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:18,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:18,663 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:18,663 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 59 proven. 72 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:10:18,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202553613] [2024-11-24 00:10:18,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202553613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207647153] [2024-11-24 00:10:18,803 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:18,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:18,807 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:18,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-24 00:10:18,870 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:18,870 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:18,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:10:18,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:10:19,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:10:21,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207647153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:10:21,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:10:21,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 29 [2024-11-24 00:10:21,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523203555] [2024-11-24 00:10:21,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:21,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 00:10:21,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:21,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 00:10:21,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2024-11-24 00:10:21,264 INFO L87 Difference]: Start difference. First operand 5808 states and 7099 transitions. Second operand has 30 states, 29 states have (on average 11.482758620689655) internal successors, (333), 30 states have internal predecessors, (333), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-24 00:10:30,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:30,026 INFO L93 Difference]: Finished difference Result 9628 states and 11889 transitions. [2024-11-24 00:10:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-11-24 00:10:30,027 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 11.482758620689655) internal successors, (333), 30 states have internal predecessors, (333), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 138 [2024-11-24 00:10:30,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:30,042 INFO L225 Difference]: With dead ends: 9628 [2024-11-24 00:10:30,042 INFO L226 Difference]: Without dead ends: 9625 [2024-11-24 00:10:30,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3271 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2086, Invalid=9470, Unknown=0, NotChecked=0, Total=11556 [2024-11-24 00:10:30,045 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 992 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:30,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1712 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3725 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 00:10:30,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9625 states. [2024-11-24 00:10:31,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9625 to 7281. [2024-11-24 00:10:31,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7281 states, 7027 states have (on average 1.2049238650917888) internal successors, (8467), 7053 states have internal predecessors, (8467), 225 states have call successors, (225), 2 states have call predecessors, (225), 2 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2024-11-24 00:10:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7281 states to 7281 states and 8917 transitions. [2024-11-24 00:10:31,277 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 8917 transitions. Word has length 138 [2024-11-24 00:10:31,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:31,278 INFO L471 AbstractCegarLoop]: Abstraction has 7281 states and 8917 transitions. [2024-11-24 00:10:31,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 11.482758620689655) internal successors, (333), 30 states have internal predecessors, (333), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-24 00:10:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 8917 transitions. [2024-11-24 00:10:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 00:10:31,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:31,279 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:31,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-24 00:10:31,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:31,483 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:10:31,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:31,483 INFO L85 PathProgramCache]: Analyzing trace with hash -979152503, now seen corresponding path program 2 times [2024-11-24 00:10:31,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:31,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570630857] [2024-11-24 00:10:31,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:31,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:31,531 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:31,531 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:10:31,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279344937] [2024-11-24 00:10:31,532 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:31,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:31,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:31,538 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:31,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-24 00:10:31,645 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:31,645 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:31,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 00:10:31,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 3 proven. 144 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-24 00:10:33,391 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:35,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:35,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570630857] [2024-11-24 00:10:35,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:10:35,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279344937] [2024-11-24 00:10:35,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279344937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:35,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:10:35,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-24 00:10:35,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082883535] [2024-11-24 00:10:35,784 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:35,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:10:35,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:35,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:10:35,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=718, Unknown=1, NotChecked=0, Total=812 [2024-11-24 00:10:35,785 INFO L87 Difference]: Start difference. First operand 7281 states and 8917 transitions. Second operand has 21 states, 20 states have (on average 6.25) internal successors, (125), 21 states have internal predecessors, (125), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:10:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:38,741 INFO L93 Difference]: Finished difference Result 7296 states and 8931 transitions. [2024-11-24 00:10:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:10:38,741 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.25) internal successors, (125), 21 states have internal predecessors, (125), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 141 [2024-11-24 00:10:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:38,749 INFO L225 Difference]: With dead ends: 7296 [2024-11-24 00:10:38,749 INFO L226 Difference]: Without dead ends: 7294 [2024-11-24 00:10:38,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=124, Invalid=867, Unknown=1, NotChecked=0, Total=992 [2024-11-24 00:10:38,752 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 236 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:38,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 950 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:10:38,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2024-11-24 00:10:39,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 7281. [2024-11-24 00:10:39,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7281 states, 7027 states have (on average 1.2046392486124946) internal successors, (8465), 7053 states have internal predecessors, (8465), 225 states have call successors, (225), 2 states have call predecessors, (225), 2 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2024-11-24 00:10:39,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7281 states to 7281 states and 8915 transitions. [2024-11-24 00:10:39,658 INFO L78 Accepts]: Start accepts. Automaton has 7281 states and 8915 transitions. Word has length 141 [2024-11-24 00:10:39,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:39,659 INFO L471 AbstractCegarLoop]: Abstraction has 7281 states and 8915 transitions. [2024-11-24 00:10:39,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.25) internal successors, (125), 21 states have internal predecessors, (125), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 00:10:39,659 INFO L276 IsEmpty]: Start isEmpty. Operand 7281 states and 8915 transitions. [2024-11-24 00:10:39,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:10:39,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:39,660 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:10:39,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2024-11-24 00:10:39,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2024-11-24 00:10:39,860 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:10:39,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:39,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1058202888, now seen corresponding path program 1 times [2024-11-24 00:10:39,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:39,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325864324] [2024-11-24 00:10:39,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:39,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:10:40,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:40,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325864324] [2024-11-24 00:10:40,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325864324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:40,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599046795] [2024-11-24 00:10:40,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:40,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:40,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:40,192 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:40,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-24 00:10:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:40,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:10:40,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:10:40,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:10:41,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599046795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:10:41,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:10:41,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 32 [2024-11-24 00:10:41,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497566766] [2024-11-24 00:10:41,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:41,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 00:10:41,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:41,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 00:10:41,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:10:41,941 INFO L87 Difference]: Start difference. First operand 7281 states and 8915 transitions. Second operand has 32 states, 32 states have (on average 9.34375) internal successors, (299), 32 states have internal predecessors, (299), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-24 00:10:45,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:45,874 INFO L93 Difference]: Finished difference Result 7381 states and 9023 transitions. [2024-11-24 00:10:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-24 00:10:45,875 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.34375) internal successors, (299), 32 states have internal predecessors, (299), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 143 [2024-11-24 00:10:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:45,881 INFO L225 Difference]: With dead ends: 7381 [2024-11-24 00:10:45,881 INFO L226 Difference]: Without dead ends: 7316 [2024-11-24 00:10:45,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 265 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=459, Invalid=2847, Unknown=0, NotChecked=0, Total=3306 [2024-11-24 00:10:45,883 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 186 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:45,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1336 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:10:45,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2024-11-24 00:10:46,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 7293. [2024-11-24 00:10:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7293 states, 7038 states have (on average 1.2036089798238137) internal successors, (8471), 7064 states have internal predecessors, (8471), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-24 00:10:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7293 states to 7293 states and 8923 transitions. [2024-11-24 00:10:46,913 INFO L78 Accepts]: Start accepts. Automaton has 7293 states and 8923 transitions. Word has length 143 [2024-11-24 00:10:46,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:46,913 INFO L471 AbstractCegarLoop]: Abstraction has 7293 states and 8923 transitions. [2024-11-24 00:10:46,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.34375) internal successors, (299), 32 states have internal predecessors, (299), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-24 00:10:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7293 states and 8923 transitions. [2024-11-24 00:10:46,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:10:46,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:46,915 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:10:46,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-24 00:10:47,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2024-11-24 00:10:47,115 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:10:47,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash -525313144, now seen corresponding path program 2 times [2024-11-24 00:10:47,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:47,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337064137] [2024-11-24 00:10:47,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:47,128 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:47,129 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:10:47,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:47,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337064137] [2024-11-24 00:10:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337064137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:47,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14761594] [2024-11-24 00:10:47,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:47,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:47,616 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:47,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-24 00:10:47,693 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:47,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:47,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 00:10:47,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:10:48,460 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:10:49,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14761594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:10:49,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:10:49,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 32 [2024-11-24 00:10:49,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076831213] [2024-11-24 00:10:49,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:49,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-24 00:10:49,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:49,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-24 00:10:49,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2024-11-24 00:10:49,282 INFO L87 Difference]: Start difference. First operand 7293 states and 8923 transitions. Second operand has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-24 00:10:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:52,858 INFO L93 Difference]: Finished difference Result 7312 states and 8938 transitions. [2024-11-24 00:10:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:10:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) Word has length 143 [2024-11-24 00:10:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:52,868 INFO L225 Difference]: With dead ends: 7312 [2024-11-24 00:10:52,868 INFO L226 Difference]: Without dead ends: 7284 [2024-11-24 00:10:52,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=333, Invalid=2423, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 00:10:52,869 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 103 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:52,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 869 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:10:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2024-11-24 00:10:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 7284. [2024-11-24 00:10:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7284 states, 7029 states have (on average 1.203300611751316) internal successors, (8458), 7055 states have internal predecessors, (8458), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-24 00:10:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7284 states to 7284 states and 8910 transitions. [2024-11-24 00:10:54,034 INFO L78 Accepts]: Start accepts. Automaton has 7284 states and 8910 transitions. Word has length 143 [2024-11-24 00:10:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:54,034 INFO L471 AbstractCegarLoop]: Abstraction has 7284 states and 8910 transitions. [2024-11-24 00:10:54,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-24 00:10:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7284 states and 8910 transitions. [2024-11-24 00:10:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-24 00:10:54,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:54,036 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:54,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2024-11-24 00:10:54,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2024-11-24 00:10:54,237 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:10:54,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -288956436, now seen corresponding path program 2 times [2024-11-24 00:10:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:10:54,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122500095] [2024-11-24 00:10:54,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:54,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:10:54,266 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:54,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:10:54,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270233605] [2024-11-24 00:10:54,267 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:10:54,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:10:54,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:10:54,269 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:10:54,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2024-11-24 00:10:54,345 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:10:54,345 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:10:54,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:10:54,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:10:55,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:56,568 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 00:10:56,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:10:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122500095] [2024-11-24 00:10:56,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:10:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270233605] [2024-11-24 00:10:56,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270233605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:10:56,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:10:56,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-24 00:10:56,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150925528] [2024-11-24 00:10:56,569 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:56,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 00:10:56,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:10:56,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 00:10:56,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:10:56,570 INFO L87 Difference]: Start difference. First operand 7284 states and 8910 transitions. Second operand has 28 states, 27 states have (on average 8.666666666666666) internal successors, (234), 28 states have internal predecessors, (234), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:11:03,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:03,646 INFO L93 Difference]: Finished difference Result 8434 states and 10336 transitions. [2024-11-24 00:11:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-24 00:11:03,647 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 8.666666666666666) internal successors, (234), 28 states have internal predecessors, (234), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 142 [2024-11-24 00:11:03,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:03,655 INFO L225 Difference]: With dead ends: 8434 [2024-11-24 00:11:03,655 INFO L226 Difference]: Without dead ends: 8432 [2024-11-24 00:11:03,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1022 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=728, Invalid=4102, Unknown=0, NotChecked=0, Total=4830 [2024-11-24 00:11:03,658 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 578 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 3062 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:03,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 684 Invalid, 3123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3062 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 00:11:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8432 states. [2024-11-24 00:11:04,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8432 to 7359. [2024-11-24 00:11:04,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7359 states, 7099 states have (on average 1.2005916326243133) internal successors, (8523), 7125 states have internal predecessors, (8523), 231 states have call successors, (231), 2 states have call predecessors, (231), 2 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-24 00:11:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7359 states to 7359 states and 8985 transitions. [2024-11-24 00:11:04,828 INFO L78 Accepts]: Start accepts. Automaton has 7359 states and 8985 transitions. Word has length 142 [2024-11-24 00:11:04,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:04,829 INFO L471 AbstractCegarLoop]: Abstraction has 7359 states and 8985 transitions. [2024-11-24 00:11:04,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 8.666666666666666) internal successors, (234), 28 states have internal predecessors, (234), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 00:11:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 7359 states and 8985 transitions. [2024-11-24 00:11:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 00:11:04,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:04,830 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:11:04,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2024-11-24 00:11:05,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:05,030 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:11:05,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash 160508474, now seen corresponding path program 3 times [2024-11-24 00:11:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494414665] [2024-11-24 00:11:05,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:11:05,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:05,065 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-24 00:11:05,065 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:11:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:05,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:05,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494414665] [2024-11-24 00:11:05,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494414665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:05,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831716043] [2024-11-24 00:11:05,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:11:05,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:05,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:05,663 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:05,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2024-11-24 00:11:05,814 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:11:05,815 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:11:05,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 00:11:05,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 00:11:08,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:24,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831716043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:24,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:11:24,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 30 [2024-11-24 00:11:24,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739664541] [2024-11-24 00:11:24,953 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:24,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-24 00:11:24,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:24,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-24 00:11:24,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1506, Unknown=1, NotChecked=0, Total=1722 [2024-11-24 00:11:24,954 INFO L87 Difference]: Start difference. First operand 7359 states and 8985 transitions. Second operand has 30 states, 30 states have (on average 6.5) internal successors, (195), 28 states have internal predecessors, (195), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-24 00:11:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:33,228 INFO L93 Difference]: Finished difference Result 7500 states and 9142 transitions. [2024-11-24 00:11:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-24 00:11:33,228 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.5) internal successors, (195), 28 states have internal predecessors, (195), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 147 [2024-11-24 00:11:33,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:33,236 INFO L225 Difference]: With dead ends: 7500 [2024-11-24 00:11:33,236 INFO L226 Difference]: Without dead ends: 7469 [2024-11-24 00:11:33,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=642, Invalid=3779, Unknown=1, NotChecked=0, Total=4422 [2024-11-24 00:11:33,238 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 198 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 4170 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 4187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:33,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1164 Invalid, 4187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4170 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 00:11:33,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2024-11-24 00:11:34,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 7454. [2024-11-24 00:11:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 7194 states have (on average 1.1573533500139004) internal successors, (8326), 7220 states have internal predecessors, (8326), 231 states have call successors, (231), 2 states have call predecessors, (231), 2 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-24 00:11:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 8788 transitions. [2024-11-24 00:11:34,169 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 8788 transitions. Word has length 147 [2024-11-24 00:11:34,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:34,169 INFO L471 AbstractCegarLoop]: Abstraction has 7454 states and 8788 transitions. [2024-11-24 00:11:34,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.5) internal successors, (195), 28 states have internal predecessors, (195), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-24 00:11:34,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 8788 transitions. [2024-11-24 00:11:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 00:11:34,170 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:34,170 INFO L218 NwaCegarLoop]: trace histogram [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, 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] [2024-11-24 00:11:34,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:34,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:34,371 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:11:34,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:34,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1128595080, now seen corresponding path program 1 times [2024-11-24 00:11:34,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:34,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339016370] [2024-11-24 00:11:34,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:34,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:34,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:34,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339016370] [2024-11-24 00:11:34,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339016370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:34,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785910874] [2024-11-24 00:11:34,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:34,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:34,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:34,590 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:34,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2024-11-24 00:11:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:34,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:11:34,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 139 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:35,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 30 proven. 115 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:35,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785910874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:35,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:35,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-24 00:11:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63000047] [2024-11-24 00:11:35,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:35,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:11:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:35,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:11:35,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:11:35,972 INFO L87 Difference]: Start difference. First operand 7454 states and 8788 transitions. Second operand has 21 states, 21 states have (on average 16.476190476190474) internal successors, (346), 21 states have internal predecessors, (346), 14 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-24 00:11:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:40,466 INFO L93 Difference]: Finished difference Result 11080 states and 13225 transitions. [2024-11-24 00:11:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-24 00:11:40,466 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 16.476190476190474) internal successors, (346), 21 states have internal predecessors, (346), 14 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 148 [2024-11-24 00:11:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:40,478 INFO L225 Difference]: With dead ends: 11080 [2024-11-24 00:11:40,479 INFO L226 Difference]: Without dead ends: 9270 [2024-11-24 00:11:40,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=540, Invalid=1910, Unknown=0, NotChecked=0, Total=2450 [2024-11-24 00:11:40,485 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 1082 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:40,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 1416 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:11:40,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9270 states. [2024-11-24 00:11:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9270 to 8622. [2024-11-24 00:11:41,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8622 states, 8320 states have (on average 1.165985576923077) internal successors, (9701), 8346 states have internal predecessors, (9701), 273 states have call successors, (273), 2 states have call predecessors, (273), 2 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2024-11-24 00:11:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8622 states to 8622 states and 10247 transitions. [2024-11-24 00:11:41,878 INFO L78 Accepts]: Start accepts. Automaton has 8622 states and 10247 transitions. Word has length 148 [2024-11-24 00:11:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:41,878 INFO L471 AbstractCegarLoop]: Abstraction has 8622 states and 10247 transitions. [2024-11-24 00:11:41,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 16.476190476190474) internal successors, (346), 21 states have internal predecessors, (346), 14 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-24 00:11:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8622 states and 10247 transitions. [2024-11-24 00:11:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 00:11:41,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:41,880 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:41,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2024-11-24 00:11:42,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:42,080 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:11:42,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1038519392, now seen corresponding path program 1 times [2024-11-24 00:11:42,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:42,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733571245] [2024-11-24 00:11:42,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:42,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:11:42,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1384900025] [2024-11-24 00:11:42,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:42,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:42,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:42,101 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:42,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-24 00:11:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:42,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:11:42,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:42,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:43,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:43,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733571245] [2024-11-24 00:11:43,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:11:43,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384900025] [2024-11-24 00:11:43,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384900025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:43,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:11:43,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-24 00:11:43,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755550811] [2024-11-24 00:11:43,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:43,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:11:43,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:43,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:11:43,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:11:43,714 INFO L87 Difference]: Start difference. First operand 8622 states and 10247 transitions. Second operand has 26 states, 25 states have (on average 9.84) internal successors, (246), 26 states have internal predecessors, (246), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:11:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:48,640 INFO L93 Difference]: Finished difference Result 8750 states and 10382 transitions. [2024-11-24 00:11:48,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-24 00:11:48,640 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 9.84) internal successors, (246), 26 states have internal predecessors, (246), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 153 [2024-11-24 00:11:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:48,647 INFO L225 Difference]: With dead ends: 8750 [2024-11-24 00:11:48,647 INFO L226 Difference]: Without dead ends: 8748 [2024-11-24 00:11:48,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=374, Invalid=2176, Unknown=0, NotChecked=0, Total=2550 [2024-11-24 00:11:48,648 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 440 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:48,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1601 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 00:11:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8748 states. [2024-11-24 00:11:49,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8748 to 8667. [2024-11-24 00:11:49,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8667 states, 8364 states have (on average 1.1649928263988523) internal successors, (9744), 8390 states have internal predecessors, (9744), 274 states have call successors, (274), 2 states have call predecessors, (274), 2 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2024-11-24 00:11:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8667 states to 8667 states and 10292 transitions. [2024-11-24 00:11:49,807 INFO L78 Accepts]: Start accepts. Automaton has 8667 states and 10292 transitions. Word has length 153 [2024-11-24 00:11:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:49,807 INFO L471 AbstractCegarLoop]: Abstraction has 8667 states and 10292 transitions. [2024-11-24 00:11:49,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 9.84) internal successors, (246), 26 states have internal predecessors, (246), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:11:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 8667 states and 10292 transitions. [2024-11-24 00:11:49,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-24 00:11:49,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:49,808 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:49,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-24 00:11:50,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:50,009 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:11:50,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1215213788, now seen corresponding path program 2 times [2024-11-24 00:11:50,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:50,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121317765] [2024-11-24 00:11:50,009 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:11:50,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:50,022 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:11:50,022 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:11:50,216 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:50,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:50,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121317765] [2024-11-24 00:11:50,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121317765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:50,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220397243] [2024-11-24 00:11:50,217 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:11:50,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:50,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:50,219 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:50,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2024-11-24 00:11:50,333 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:11:50,333 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:11:50,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:11:50,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:51,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:51,838 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:11:51,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220397243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:11:51,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:11:51,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2024-11-24 00:11:51,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826643834] [2024-11-24 00:11:51,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:51,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 00:11:51,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:51,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 00:11:51,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:11:51,839 INFO L87 Difference]: Start difference. First operand 8667 states and 10292 transitions. Second operand has 21 states, 20 states have (on average 19.1) internal successors, (382), 21 states have internal predecessors, (382), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:11:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:55,098 INFO L93 Difference]: Finished difference Result 9614 states and 11491 transitions. [2024-11-24 00:11:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:11:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 19.1) internal successors, (382), 21 states have internal predecessors, (382), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 156 [2024-11-24 00:11:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:55,111 INFO L225 Difference]: With dead ends: 9614 [2024-11-24 00:11:55,111 INFO L226 Difference]: Without dead ends: 9613 [2024-11-24 00:11:55,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:11:55,113 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 1971 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1549 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1972 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:55,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1972 Valid, 976 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1549 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:11:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9613 states. [2024-11-24 00:11:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9613 to 8963. [2024-11-24 00:11:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8963 states, 8650 states have (on average 1.170520231213873) internal successors, (10125), 8676 states have internal predecessors, (10125), 284 states have call successors, (284), 2 states have call predecessors, (284), 2 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-24 00:11:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8963 states to 8963 states and 10693 transitions. [2024-11-24 00:11:56,522 INFO L78 Accepts]: Start accepts. Automaton has 8963 states and 10693 transitions. Word has length 156 [2024-11-24 00:11:56,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:56,523 INFO L471 AbstractCegarLoop]: Abstraction has 8963 states and 10693 transitions. [2024-11-24 00:11:56,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 19.1) internal successors, (382), 21 states have internal predecessors, (382), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:11:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 8963 states and 10693 transitions. [2024-11-24 00:11:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 00:11:56,523 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:56,523 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:56,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2024-11-24 00:11:56,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:56,724 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:11:56,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash -74869083, now seen corresponding path program 2 times [2024-11-24 00:11:56,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:56,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593659197] [2024-11-24 00:11:56,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:11:56,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:56,733 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:11:56,733 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:11:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-24 00:11:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:11:56,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593659197] [2024-11-24 00:11:56,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593659197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:11:56,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:11:56,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:11:56,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662581756] [2024-11-24 00:11:56,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:11:56,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:11:56,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:11:56,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:11:56,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:56,783 INFO L87 Difference]: Start difference. First operand 8963 states and 10693 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-24 00:11:58,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:58,104 INFO L93 Difference]: Finished difference Result 8966 states and 10693 transitions. [2024-11-24 00:11:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:11:58,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 158 [2024-11-24 00:11:58,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:58,111 INFO L225 Difference]: With dead ends: 8966 [2024-11-24 00:11:58,111 INFO L226 Difference]: Without dead ends: 8944 [2024-11-24 00:11:58,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:11:58,113 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:58,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 194 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:11:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8944 states. [2024-11-24 00:11:59,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8944 to 8941. [2024-11-24 00:11:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8941 states, 8629 states have (on average 1.170355777030942) internal successors, (10099), 8654 states have internal predecessors, (10099), 284 states have call successors, (284), 2 states have call predecessors, (284), 2 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-24 00:11:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8941 states to 8941 states and 10667 transitions. [2024-11-24 00:11:59,254 INFO L78 Accepts]: Start accepts. Automaton has 8941 states and 10667 transitions. Word has length 158 [2024-11-24 00:11:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:59,255 INFO L471 AbstractCegarLoop]: Abstraction has 8941 states and 10667 transitions. [2024-11-24 00:11:59,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-24 00:11:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8941 states and 10667 transitions. [2024-11-24 00:11:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-24 00:11:59,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:59,256 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:59,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-24 00:11:59,256 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:11:59,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2066148372, now seen corresponding path program 4 times [2024-11-24 00:11:59,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:11:59,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173728562] [2024-11-24 00:11:59,256 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 00:11:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:11:59,276 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 00:11:59,277 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:11:59,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370872516] [2024-11-24 00:11:59,278 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 00:11:59,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:11:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:11:59,280 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:11:59,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2024-11-24 00:11:59,346 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 00:11:59,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:11:59,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:11:59,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:12:00,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 205 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:12:05,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:05,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173728562] [2024-11-24 00:12:05,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:12:05,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370872516] [2024-11-24 00:12:05,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370872516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:05,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:12:05,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 41 [2024-11-24 00:12:05,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717351490] [2024-11-24 00:12:05,974 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:05,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-24 00:12:05,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:05,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-24 00:12:05,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1530, Unknown=0, NotChecked=0, Total=1722 [2024-11-24 00:12:05,975 INFO L87 Difference]: Start difference. First operand 8941 states and 10667 transitions. Second operand has 42 states, 41 states have (on average 6.414634146341464) internal successors, (263), 42 states have internal predecessors, (263), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:12:26,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:26,519 INFO L93 Difference]: Finished difference Result 9217 states and 10988 transitions. [2024-11-24 00:12:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-11-24 00:12:26,520 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.414634146341464) internal successors, (263), 42 states have internal predecessors, (263), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 159 [2024-11-24 00:12:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:26,527 INFO L225 Difference]: With dead ends: 9217 [2024-11-24 00:12:26,527 INFO L226 Difference]: Without dead ends: 9216 [2024-11-24 00:12:26,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3130 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=1748, Invalid=11824, Unknown=0, NotChecked=0, Total=13572 [2024-11-24 00:12:26,529 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 765 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 5135 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 5219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 5135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:26,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 966 Invalid, 5219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 5135 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-24 00:12:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2024-11-24 00:12:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 9079. [2024-11-24 00:12:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9079 states, 8765 states have (on average 1.169309754706218) internal successors, (10249), 8790 states have internal predecessors, (10249), 286 states have call successors, (286), 2 states have call predecessors, (286), 2 states have return successors, (286), 286 states have call predecessors, (286), 286 states have call successors, (286) [2024-11-24 00:12:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9079 states to 9079 states and 10821 transitions. [2024-11-24 00:12:28,027 INFO L78 Accepts]: Start accepts. Automaton has 9079 states and 10821 transitions. Word has length 159 [2024-11-24 00:12:28,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:28,027 INFO L471 AbstractCegarLoop]: Abstraction has 9079 states and 10821 transitions. [2024-11-24 00:12:28,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.414634146341464) internal successors, (263), 42 states have internal predecessors, (263), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:12:28,027 INFO L276 IsEmpty]: Start isEmpty. Operand 9079 states and 10821 transitions. [2024-11-24 00:12:28,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 00:12:28,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:28,029 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:28,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2024-11-24 00:12:28,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2024-11-24 00:12:28,230 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:12:28,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1461749962, now seen corresponding path program 1 times [2024-11-24 00:12:28,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:28,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597573974] [2024-11-24 00:12:28,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:28,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:12:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517578457] [2024-11-24 00:12:28,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:28,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:28,256 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:28,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2024-11-24 00:12:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:28,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:12:28,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:29,548 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:12:29,548 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:29,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:29,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597573974] [2024-11-24 00:12:29,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:12:29,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517578457] [2024-11-24 00:12:29,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517578457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:29,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:29,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 00:12:29,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909415252] [2024-11-24 00:12:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:29,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 00:12:29,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:29,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 00:12:29,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:12:29,549 INFO L87 Difference]: Start difference. First operand 9079 states and 10821 transitions. Second operand has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 20 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:12:33,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:33,118 INFO L93 Difference]: Finished difference Result 9499 states and 11308 transitions. [2024-11-24 00:12:33,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:12:33,118 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 20 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 163 [2024-11-24 00:12:33,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:33,124 INFO L225 Difference]: With dead ends: 9499 [2024-11-24 00:12:33,124 INFO L226 Difference]: Without dead ends: 9497 [2024-11-24 00:12:33,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:12:33,126 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 108 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:33,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1210 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:12:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9497 states. [2024-11-24 00:12:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9497 to 9443. [2024-11-24 00:12:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9443 states, 9120 states have (on average 1.1705043859649122) internal successors, (10675), 9145 states have internal predecessors, (10675), 295 states have call successors, (295), 2 states have call predecessors, (295), 2 states have return successors, (295), 295 states have call predecessors, (295), 295 states have call successors, (295) [2024-11-24 00:12:34,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9443 states to 9443 states and 11265 transitions. [2024-11-24 00:12:34,335 INFO L78 Accepts]: Start accepts. Automaton has 9443 states and 11265 transitions. Word has length 163 [2024-11-24 00:12:34,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:34,336 INFO L471 AbstractCegarLoop]: Abstraction has 9443 states and 11265 transitions. [2024-11-24 00:12:34,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 20 states have internal predecessors, (142), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 00:12:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9443 states and 11265 transitions. [2024-11-24 00:12:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 00:12:34,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:34,337 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:34,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2024-11-24 00:12:34,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2024-11-24 00:12:34,537 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:12:34,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:34,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1326087694, now seen corresponding path program 1 times [2024-11-24 00:12:34,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:34,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865387432] [2024-11-24 00:12:34,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:12:34,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468505266] [2024-11-24 00:12:34,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:34,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:34,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:34,558 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:34,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-24 00:12:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:34,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 00:12:34,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:12:36,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:12:38,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:38,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865387432] [2024-11-24 00:12:38,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:12:38,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468505266] [2024-11-24 00:12:38,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468505266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:38,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:12:38,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2024-11-24 00:12:38,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39491190] [2024-11-24 00:12:38,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:38,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-24 00:12:38,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:38,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-24 00:12:38,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1250, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:12:38,767 INFO L87 Difference]: Start difference. First operand 9443 states and 11265 transitions. Second operand has 40 states, 39 states have (on average 7.0256410256410255) internal successors, (274), 40 states have internal predecessors, (274), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:12:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:50,312 INFO L93 Difference]: Finished difference Result 9518 states and 11343 transitions. [2024-11-24 00:12:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-24 00:12:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 7.0256410256410255) internal successors, (274), 40 states have internal predecessors, (274), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 167 [2024-11-24 00:12:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:50,321 INFO L225 Difference]: With dead ends: 9518 [2024-11-24 00:12:50,321 INFO L226 Difference]: Without dead ends: 9473 [2024-11-24 00:12:50,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1304, Invalid=4548, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 00:12:50,324 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 445 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 3678 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 3730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:50,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 658 Invalid, 3730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3678 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-24 00:12:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2024-11-24 00:12:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 9473. [2024-11-24 00:12:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9473 states, 9150 states have (on average 1.1699453551912569) internal successors, (10705), 9175 states have internal predecessors, (10705), 295 states have call successors, (295), 2 states have call predecessors, (295), 2 states have return successors, (295), 295 states have call predecessors, (295), 295 states have call successors, (295) [2024-11-24 00:12:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9473 states to 9473 states and 11295 transitions. [2024-11-24 00:12:51,863 INFO L78 Accepts]: Start accepts. Automaton has 9473 states and 11295 transitions. Word has length 167 [2024-11-24 00:12:51,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:51,863 INFO L471 AbstractCegarLoop]: Abstraction has 9473 states and 11295 transitions. [2024-11-24 00:12:51,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 7.0256410256410255) internal successors, (274), 40 states have internal predecessors, (274), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-24 00:12:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9473 states and 11295 transitions. [2024-11-24 00:12:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 00:12:51,864 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:51,865 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:51,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2024-11-24 00:12:52,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:52,065 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:12:52,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2141311996, now seen corresponding path program 2 times [2024-11-24 00:12:52,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:12:52,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925500980] [2024-11-24 00:12:52,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:12:52,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:12:52,078 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:12:52,078 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:12:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:12:52,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:12:52,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925500980] [2024-11-24 00:12:52,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925500980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:12:52,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417681240] [2024-11-24 00:12:52,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:12:52,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:12:52,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:12:52,456 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:12:52,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2024-11-24 00:12:52,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:12:52,552 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:12:52,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:12:52,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:12:53,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:12:55,805 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:12:55,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417681240] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:12:55,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:12:55,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2024-11-24 00:12:55,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338104577] [2024-11-24 00:12:55,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:12:55,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-24 00:12:55,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:12:55,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-24 00:12:55,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1326, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 00:12:55,808 INFO L87 Difference]: Start difference. First operand 9473 states and 11295 transitions. Second operand has 40 states, 39 states have (on average 10.333333333333334) internal successors, (403), 40 states have internal predecessors, (403), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-24 00:13:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:02,457 INFO L93 Difference]: Finished difference Result 9610 states and 11440 transitions. [2024-11-24 00:13:02,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-24 00:13:02,458 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 10.333333333333334) internal successors, (403), 40 states have internal predecessors, (403), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 167 [2024-11-24 00:13:02,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:02,466 INFO L225 Difference]: With dead ends: 9610 [2024-11-24 00:13:02,466 INFO L226 Difference]: Without dead ends: 9609 [2024-11-24 00:13:02,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2430 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1251, Invalid=7121, Unknown=0, NotChecked=0, Total=8372 [2024-11-24 00:13:02,467 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 416 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:02,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1142 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 00:13:02,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2024-11-24 00:13:03,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 9483. [2024-11-24 00:13:03,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9483 states, 9160 states have (on average 1.169650655021834) internal successors, (10714), 9185 states have internal predecessors, (10714), 295 states have call successors, (295), 2 states have call predecessors, (295), 2 states have return successors, (295), 295 states have call predecessors, (295), 295 states have call successors, (295) [2024-11-24 00:13:03,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9483 states to 9483 states and 11304 transitions. [2024-11-24 00:13:03,794 INFO L78 Accepts]: Start accepts. Automaton has 9483 states and 11304 transitions. Word has length 167 [2024-11-24 00:13:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:03,794 INFO L471 AbstractCegarLoop]: Abstraction has 9483 states and 11304 transitions. [2024-11-24 00:13:03,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 10.333333333333334) internal successors, (403), 40 states have internal predecessors, (403), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-24 00:13:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 9483 states and 11304 transitions. [2024-11-24 00:13:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 00:13:03,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:03,795 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:03,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2024-11-24 00:13:03,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2024-11-24 00:13:03,996 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:13:03,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:03,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1924063296, now seen corresponding path program 2 times [2024-11-24 00:13:03,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:03,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825451298] [2024-11-24 00:13:03,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:13:03,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:04,014 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:13:04,014 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:13:04,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086042135] [2024-11-24 00:13:04,015 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:13:04,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:04,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:04,017 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:04,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2024-11-24 00:13:04,094 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:13:04,094 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:04,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:13:04,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-24 00:13:05,497 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:13:05,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:05,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825451298] [2024-11-24 00:13:05,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:13:05,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086042135] [2024-11-24 00:13:05,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086042135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:13:05,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:13:05,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 00:13:05,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7239956] [2024-11-24 00:13:05,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:05,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:13:05,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:05,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:13:05,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:13:05,498 INFO L87 Difference]: Start difference. First operand 9483 states and 11304 transitions. Second operand has 13 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:13:09,517 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 [0] [2024-11-24 00:13:11,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:11,977 INFO L93 Difference]: Finished difference Result 9483 states and 11304 transitions. [2024-11-24 00:13:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:13:11,978 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 171 [2024-11-24 00:13:11,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:11,990 INFO L225 Difference]: With dead ends: 9483 [2024-11-24 00:13:11,991 INFO L226 Difference]: Without dead ends: 9460 [2024-11-24 00:13:11,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:13:11,993 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 66 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:11,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 147 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-24 00:13:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9460 states. [2024-11-24 00:13:13,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9460 to 9414. [2024-11-24 00:13:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9414 states, 9092 states have (on average 1.1702595688517379) internal successors, (10640), 9116 states have internal predecessors, (10640), 295 states have call successors, (295), 2 states have call predecessors, (295), 2 states have return successors, (295), 295 states have call predecessors, (295), 295 states have call successors, (295) [2024-11-24 00:13:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9414 states to 9414 states and 11230 transitions. [2024-11-24 00:13:13,781 INFO L78 Accepts]: Start accepts. Automaton has 9414 states and 11230 transitions. Word has length 171 [2024-11-24 00:13:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:13,782 INFO L471 AbstractCegarLoop]: Abstraction has 9414 states and 11230 transitions. [2024-11-24 00:13:13,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 00:13:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 9414 states and 11230 transitions. [2024-11-24 00:13:13,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-24 00:13:13,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:13,783 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:13,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2024-11-24 00:13:13,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:13,983 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:13:13,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:13,984 INFO L85 PathProgramCache]: Analyzing trace with hash 350914151, now seen corresponding path program 2 times [2024-11-24 00:13:13,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:13,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742137515] [2024-11-24 00:13:13,984 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:13:13,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:14,002 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:13:14,002 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-24 00:13:14,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:14,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742137515] [2024-11-24 00:13:14,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742137515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:14,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555620164] [2024-11-24 00:13:14,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:13:14,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:14,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:14,291 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:14,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-24 00:13:14,375 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:13:14,376 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:14,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:13:14,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:15,175 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:15,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555620164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:15,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:13:15,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-24 00:13:15,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143170496] [2024-11-24 00:13:15,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:15,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 00:13:15,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:15,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 00:13:15,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:13:15,637 INFO L87 Difference]: Start difference. First operand 9414 states and 11230 transitions. Second operand has 25 states, 24 states have (on average 17.541666666666668) internal successors, (421), 24 states have internal predecessors, (421), 21 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:13:19,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:19,500 INFO L93 Difference]: Finished difference Result 12340 states and 14675 transitions. [2024-11-24 00:13:19,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 00:13:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 17.541666666666668) internal successors, (421), 24 states have internal predecessors, (421), 21 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 173 [2024-11-24 00:13:19,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:19,510 INFO L225 Difference]: With dead ends: 12340 [2024-11-24 00:13:19,510 INFO L226 Difference]: Without dead ends: 12339 [2024-11-24 00:13:19,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=706, Invalid=1744, Unknown=0, NotChecked=0, Total=2450 [2024-11-24 00:13:19,512 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 3007 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:19,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 1228 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:13:19,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12339 states. [2024-11-24 00:13:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12339 to 11534. [2024-11-24 00:13:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11534 states, 11138 states have (on average 1.1608906446399712) internal successors, (12930), 11162 states have internal predecessors, (12930), 369 states have call successors, (369), 2 states have call predecessors, (369), 2 states have return successors, (369), 369 states have call predecessors, (369), 369 states have call successors, (369) [2024-11-24 00:13:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11534 states to 11534 states and 13668 transitions. [2024-11-24 00:13:21,120 INFO L78 Accepts]: Start accepts. Automaton has 11534 states and 13668 transitions. Word has length 173 [2024-11-24 00:13:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:21,120 INFO L471 AbstractCegarLoop]: Abstraction has 11534 states and 13668 transitions. [2024-11-24 00:13:21,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 17.541666666666668) internal successors, (421), 24 states have internal predecessors, (421), 21 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:13:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 11534 states and 13668 transitions. [2024-11-24 00:13:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:13:21,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:21,121 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:21,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-24 00:13:21,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:21,321 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:13:21,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1224992616, now seen corresponding path program 3 times [2024-11-24 00:13:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146022973] [2024-11-24 00:13:21,322 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:13:21,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:21,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-24 00:13:21,343 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:13:21,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429431459] [2024-11-24 00:13:21,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:13:21,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:21,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:21,346 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:21,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2024-11-24 00:13:21,405 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:13:21,405 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:21,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 00:13:21,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 149 proven. 14 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-24 00:13:22,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:23,783 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 149 proven. 14 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-24 00:13:23,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:23,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146022973] [2024-11-24 00:13:23,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:13:23,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429431459] [2024-11-24 00:13:23,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429431459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:23,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:13:23,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2024-11-24 00:13:23,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221419536] [2024-11-24 00:13:23,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:23,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:13:23,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:23,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:13:23,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:13:23,785 INFO L87 Difference]: Start difference. First operand 11534 states and 13668 transitions. Second operand has 19 states, 18 states have (on average 7.5) internal successors, (135), 19 states have internal predecessors, (135), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:13:28,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:28,892 INFO L93 Difference]: Finished difference Result 11536 states and 13670 transitions. [2024-11-24 00:13:28,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:13:28,893 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.5) internal successors, (135), 19 states have internal predecessors, (135), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 177 [2024-11-24 00:13:28,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:28,904 INFO L225 Difference]: With dead ends: 11536 [2024-11-24 00:13:28,904 INFO L226 Difference]: Without dead ends: 11535 [2024-11-24 00:13:28,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 334 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=183, Invalid=939, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:13:28,907 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 369 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:28,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 203 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 00:13:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2024-11-24 00:13:30,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 11317. [2024-11-24 00:13:30,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11317 states, 10922 states have (on average 1.1563816150888115) internal successors, (12630), 10945 states have internal predecessors, (12630), 369 states have call successors, (369), 2 states have call predecessors, (369), 2 states have return successors, (369), 369 states have call predecessors, (369), 369 states have call successors, (369) [2024-11-24 00:13:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11317 states to 11317 states and 13368 transitions. [2024-11-24 00:13:30,632 INFO L78 Accepts]: Start accepts. Automaton has 11317 states and 13368 transitions. Word has length 177 [2024-11-24 00:13:30,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:30,633 INFO L471 AbstractCegarLoop]: Abstraction has 11317 states and 13368 transitions. [2024-11-24 00:13:30,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.5) internal successors, (135), 19 states have internal predecessors, (135), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-24 00:13:30,633 INFO L276 IsEmpty]: Start isEmpty. Operand 11317 states and 13368 transitions. [2024-11-24 00:13:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:13:30,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:30,634 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:30,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2024-11-24 00:13:30,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2024-11-24 00:13:30,835 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:13:30,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:30,835 INFO L85 PathProgramCache]: Analyzing trace with hash 144394407, now seen corresponding path program 4 times [2024-11-24 00:13:30,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:30,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679722043] [2024-11-24 00:13:30,835 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 00:13:30,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:30,853 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 00:13:30,853 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 6 proven. 248 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-24 00:13:31,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:31,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679722043] [2024-11-24 00:13:31,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679722043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:31,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619791784] [2024-11-24 00:13:31,671 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 00:13:31,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:31,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:31,673 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:31,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-24 00:13:31,748 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 00:13:31,748 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:31,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:13:31,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:33,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:34,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619791784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:34,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:13:34,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16, 16] total 47 [2024-11-24 00:13:34,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82577395] [2024-11-24 00:13:34,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:34,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-24 00:13:34,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:34,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-24 00:13:34,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1932, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 00:13:34,259 INFO L87 Difference]: Start difference. First operand 11317 states and 13368 transitions. Second operand has 47 states, 47 states have (on average 9.042553191489361) internal successors, (425), 47 states have internal predecessors, (425), 16 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-24 00:13:40,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:40,998 INFO L93 Difference]: Finished difference Result 11362 states and 13412 transitions. [2024-11-24 00:13:40,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-24 00:13:40,998 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 9.042553191489361) internal successors, (425), 47 states have internal predecessors, (425), 16 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 179 [2024-11-24 00:13:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:41,008 INFO L225 Difference]: With dead ends: 11362 [2024-11-24 00:13:41,008 INFO L226 Difference]: Without dead ends: 11320 [2024-11-24 00:13:41,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2122 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=929, Invalid=6903, Unknown=0, NotChecked=0, Total=7832 [2024-11-24 00:13:41,011 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 295 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:41,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1698 Invalid, 3655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 00:13:41,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11320 states. [2024-11-24 00:13:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11320 to 11317. [2024-11-24 00:13:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11317 states, 10922 states have (on average 1.1560153817982055) internal successors, (12626), 10945 states have internal predecessors, (12626), 369 states have call successors, (369), 2 states have call predecessors, (369), 2 states have return successors, (369), 369 states have call predecessors, (369), 369 states have call successors, (369) [2024-11-24 00:13:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11317 states to 11317 states and 13364 transitions. [2024-11-24 00:13:42,920 INFO L78 Accepts]: Start accepts. Automaton has 11317 states and 13364 transitions. Word has length 179 [2024-11-24 00:13:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:42,920 INFO L471 AbstractCegarLoop]: Abstraction has 11317 states and 13364 transitions. [2024-11-24 00:13:42,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 9.042553191489361) internal successors, (425), 47 states have internal predecessors, (425), 16 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-24 00:13:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 11317 states and 13364 transitions. [2024-11-24 00:13:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:13:42,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:42,921 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2024-11-24 00:13:42,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2024-11-24 00:13:43,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2024-11-24 00:13:43,122 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:13:43,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:43,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2101318929, now seen corresponding path program 1 times [2024-11-24 00:13:43,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:43,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429115544] [2024-11-24 00:13:43,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:43,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:43,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429115544] [2024-11-24 00:13:43,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429115544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38069068] [2024-11-24 00:13:43,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:43,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:43,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:43,384 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:43,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2024-11-24 00:13:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:43,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:13:43,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:43,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 264 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:44,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38069068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:44,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:13:44,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-24 00:13:44,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331847102] [2024-11-24 00:13:44,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:44,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-24 00:13:44,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:44,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-24 00:13:44,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:13:44,165 INFO L87 Difference]: Start difference. First operand 11317 states and 13364 transitions. Second operand has 24 states, 23 states have (on average 13.91304347826087) internal successors, (320), 24 states have internal predecessors, (320), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-24 00:13:47,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:47,146 INFO L93 Difference]: Finished difference Result 17722 states and 20906 transitions. [2024-11-24 00:13:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:13:47,146 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 13.91304347826087) internal successors, (320), 24 states have internal predecessors, (320), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 181 [2024-11-24 00:13:47,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:47,163 INFO L225 Difference]: With dead ends: 17722 [2024-11-24 00:13:47,163 INFO L226 Difference]: Without dead ends: 17721 [2024-11-24 00:13:47,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:13:47,167 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 195 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:47,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 895 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:13:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17721 states. [2024-11-24 00:13:50,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17721 to 16710. [2024-11-24 00:13:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16710 states, 16148 states have (on average 1.1519692841218727) internal successors, (18602), 16171 states have internal predecessors, (18602), 536 states have call successors, (536), 2 states have call predecessors, (536), 2 states have return successors, (536), 536 states have call predecessors, (536), 536 states have call successors, (536) [2024-11-24 00:13:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16710 states to 16710 states and 19674 transitions. [2024-11-24 00:13:50,163 INFO L78 Accepts]: Start accepts. Automaton has 16710 states and 19674 transitions. Word has length 181 [2024-11-24 00:13:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:50,164 INFO L471 AbstractCegarLoop]: Abstraction has 16710 states and 19674 transitions. [2024-11-24 00:13:50,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.91304347826087) internal successors, (320), 24 states have internal predecessors, (320), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-24 00:13:50,164 INFO L276 IsEmpty]: Start isEmpty. Operand 16710 states and 19674 transitions. [2024-11-24 00:13:50,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:13:50,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:50,166 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:50,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2024-11-24 00:13:50,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2024-11-24 00:13:50,370 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:13:50,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash 187116827, now seen corresponding path program 2 times [2024-11-24 00:13:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:13:50,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232742423] [2024-11-24 00:13:50,370 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:13:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:13:50,442 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:13:50,442 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-24 00:13:50,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14896179] [2024-11-24 00:13:50,443 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:13:50,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:13:50,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:13:50,448 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:13:50,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2024-11-24 00:13:50,541 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:13:50,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:13:50,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 00:13:50,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:51,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-24 00:13:52,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:13:52,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232742423] [2024-11-24 00:13:52,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:13:52,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14896179] [2024-11-24 00:13:52,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14896179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:13:52,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:13:52,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-24 00:13:52,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940667823] [2024-11-24 00:13:52,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:52,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:13:52,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:13:52,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:13:52,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:13:52,503 INFO L87 Difference]: Start difference. First operand 16710 states and 19674 transitions. Second operand has 26 states, 25 states have (on average 11.68) internal successors, (292), 26 states have internal predecessors, (292), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-24 00:14:00,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:00,596 INFO L93 Difference]: Finished difference Result 16810 states and 19777 transitions. [2024-11-24 00:14:00,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-24 00:14:00,597 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 11.68) internal successors, (292), 26 states have internal predecessors, (292), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 181 [2024-11-24 00:14:00,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:00,614 INFO L225 Difference]: With dead ends: 16810 [2024-11-24 00:14:00,614 INFO L226 Difference]: Without dead ends: 16809 [2024-11-24 00:14:00,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2024-11-24 00:14:00,619 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 360 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:00,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1865 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 00:14:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16809 states. [2024-11-24 00:14:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16809 to 16739. [2024-11-24 00:14:03,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16739 states, 16177 states have (on average 1.1518823020337516) internal successors, (18634), 16200 states have internal predecessors, (18634), 536 states have call successors, (536), 2 states have call predecessors, (536), 2 states have return successors, (536), 536 states have call predecessors, (536), 536 states have call successors, (536) [2024-11-24 00:14:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16739 states to 16739 states and 19706 transitions. [2024-11-24 00:14:03,882 INFO L78 Accepts]: Start accepts. Automaton has 16739 states and 19706 transitions. Word has length 181 [2024-11-24 00:14:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:03,882 INFO L471 AbstractCegarLoop]: Abstraction has 16739 states and 19706 transitions. [2024-11-24 00:14:03,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 11.68) internal successors, (292), 26 states have internal predecessors, (292), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-24 00:14:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 16739 states and 19706 transitions. [2024-11-24 00:14:03,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 00:14:03,883 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:03,883 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:03,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2024-11-24 00:14:04,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2024-11-24 00:14:04,084 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-24 00:14:04,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:04,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1505654490, now seen corresponding path program 1 times [2024-11-24 00:14:04,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:14:04,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105537930] [2024-11-24 00:14:04,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:04,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:14:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:14:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137715227] [2024-11-24 00:14:04,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:04,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:14:04,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:14:04,107 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:14:04,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80831199-22db-49f6-8279-9817ec6774c4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2024-11-24 00:14:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:04,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-24 00:14:04,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 12 proven. 236 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:14:06,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:14:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 12 proven. 236 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 00:14:45,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:14:45,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105537930] [2024-11-24 00:14:45,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:14:45,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137715227] [2024-11-24 00:14:45,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137715227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:14:45,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:14:45,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 46 [2024-11-24 00:14:45,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390501537] [2024-11-24 00:14:45,174 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:14:45,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-24 00:14:45,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:14:45,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-24 00:14:45,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=1809, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 00:14:45,176 INFO L87 Difference]: Start difference. First operand 16739 states and 19706 transitions. Second operand has 47 states, 46 states have (on average 6.5) internal successors, (299), 47 states have internal predecessors, (299), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-24 00:14:48,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:03,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:05,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:10,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:14,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:26,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:33,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:34,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-24 00:15:47,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []