./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c0fb6a0d32b99c9a776859d2bc15d9177dc584955a2c1baa8ac133e976f40f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:50:24,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:50:24,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 19:50:24,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:50:24,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:50:24,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:50:24,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:50:24,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:50:24,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:50:24,262 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:50:24,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:50:24,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:50:24,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:50:24,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:50:24,263 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:50:24,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:50:24,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:50:24,267 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:50:24,267 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:24,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:24,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:50:24,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:50:24,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:50:24,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:50:24,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:50:24,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:50:24,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:50:24,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:50:24,269 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_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c0fb6a0d32b99c9a776859d2bc15d9177dc584955a2c1baa8ac133e976f40f7 [2024-11-27 19:50:24,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:50:24,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:50:24,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:50:24,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:50:24,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:50:24,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2024-11-27 19:50:27,722 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/data/898870146/c1d04b1f98d44096adfba69d2785b15c/FLAGa16815434 [2024-11-27 19:50:27,977 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:50:27,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2024-11-27 19:50:27,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/data/898870146/c1d04b1f98d44096adfba69d2785b15c/FLAGa16815434 [2024-11-27 19:50:28,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/data/898870146/c1d04b1f98d44096adfba69d2785b15c [2024-11-27 19:50:28,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:50:28,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:50:28,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:28,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:50:28,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:50:28,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b34fc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28, skipping insertion in model container [2024-11-27 19:50:28,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:50:28,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:28,262 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:50:28,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:50:28,292 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:50:28,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28 WrapperNode [2024-11-27 19:50:28,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:50:28,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:28,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:50:28,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:50:28,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,319 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-27 19:50:28,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:50:28,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:50:28,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:50:28,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:50:28,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,343 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]. [2024-11-27 19:50:28,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,347 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:50:28,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:50:28,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:50:28,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:50:28,356 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (1/1) ... [2024-11-27 19:50:28,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:50:28,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:28,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:50:28,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:50:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:50:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:50:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2024-11-27 19:50:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2024-11-27 19:50:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:50:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:50:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-27 19:50:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-27 19:50:28,519 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:50:28,521 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:50:28,707 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-27 19:50:28,707 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:50:28,723 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:50:28,723 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 19:50:28,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:28 BoogieIcfgContainer [2024-11-27 19:50:28,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:50:28,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:50:28,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:50:28,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:50:28,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:28" (1/3) ... [2024-11-27 19:50:28,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35501ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:28, skipping insertion in model container [2024-11-27 19:50:28,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:28" (2/3) ... [2024-11-27 19:50:28,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35501ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:50:28, skipping insertion in model container [2024-11-27 19:50:28,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:28" (3/3) ... [2024-11-27 19:50:28,743 INFO L128 eAbstractionObserver]: Analyzing ICFG id2_i5_o5-2.c [2024-11-27 19:50:28,768 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:50:28,771 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id2_i5_o5-2.c that has 3 procedures, 38 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-11-27 19:50:28,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:50:28,878 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;@7ff0a25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:50:28,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-27 19:50:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 32 states have internal predecessors, (35), 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) [2024-11-27 19:50:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-27 19:50:28,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:28,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 19:50:28,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:28,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1363745714, now seen corresponding path program 1 times [2024-11-27 19:50:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699343354] [2024-11-27 19:50:28,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:28,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:29,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:29,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699343354] [2024-11-27 19:50:29,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699343354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:29,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:29,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:50:29,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924406862] [2024-11-27 19:50:29,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:29,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:50:29,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:29,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:50:29,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:29,250 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 32 states have internal predecessors, (35), 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) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:29,392 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2024-11-27 19:50:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:50:29,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-27 19:50:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:29,402 INFO L225 Difference]: With dead ends: 60 [2024-11-27 19:50:29,402 INFO L226 Difference]: Without dead ends: 42 [2024-11-27 19:50:29,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:29,413 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:29,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:50:29,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-27 19:50:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-27 19:50:29,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:50:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-11-27 19:50:29,468 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 6 [2024-11-27 19:50:29,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:29,469 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-11-27 19:50:29,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,469 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-11-27 19:50:29,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-27 19:50:29,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:29,470 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:29,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:50:29,470 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:29,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:29,471 INFO L85 PathProgramCache]: Analyzing trace with hash -673555755, now seen corresponding path program 1 times [2024-11-27 19:50:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:29,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990993700] [2024-11-27 19:50:29,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:29,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:29,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:29,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990993700] [2024-11-27 19:50:29,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990993700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:29,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:29,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:50:29,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114235785] [2024-11-27 19:50:29,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:29,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 19:50:29,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:29,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 19:50:29,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:50:29,598 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:29,653 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2024-11-27 19:50:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 19:50:29,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-27 19:50:29,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:29,654 INFO L225 Difference]: With dead ends: 42 [2024-11-27 19:50:29,654 INFO L226 Difference]: Without dead ends: 41 [2024-11-27 19:50:29,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:29,656 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:29,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 113 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:29,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-27 19:50:29,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2024-11-27 19:50:29,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.44) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 19:50:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-11-27 19:50:29,667 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2024-11-27 19:50:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:29,667 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-11-27 19:50:29,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,668 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-11-27 19:50:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 19:50:29,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:29,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:29,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:50:29,669 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:29,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:29,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1526536194, now seen corresponding path program 1 times [2024-11-27 19:50:29,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:29,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184668404] [2024-11-27 19:50:29,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:29,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:29,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:29,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184668404] [2024-11-27 19:50:29,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184668404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:29,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:29,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:50:29,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862891784] [2024-11-27 19:50:29,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:29,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:50:29,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:29,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:50:29,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:50:29,830 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:29,969 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2024-11-27 19:50:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:50:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-27 19:50:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:29,970 INFO L225 Difference]: With dead ends: 62 [2024-11-27 19:50:29,970 INFO L226 Difference]: Without dead ends: 54 [2024-11-27 19:50:29,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:50:29,972 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:29,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 138 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:50:29,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-27 19:50:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2024-11-27 19:50:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 40 states have internal predecessors, (47), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 19:50:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2024-11-27 19:50:29,987 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 11 [2024-11-27 19:50:29,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:29,987 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-27 19:50:29,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:29,988 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2024-11-27 19:50:29,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-27 19:50:29,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:29,988 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:29,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:50:29,988 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:29,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:29,989 INFO L85 PathProgramCache]: Analyzing trace with hash 77981796, now seen corresponding path program 1 times [2024-11-27 19:50:29,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:29,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069627511] [2024-11-27 19:50:29,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:29,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:30,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:30,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069627511] [2024-11-27 19:50:30,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069627511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:30,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:30,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:50:30,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130267735] [2024-11-27 19:50:30,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:30,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:50:30,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:30,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:50:30,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:50:30,149 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:30,284 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2024-11-27 19:50:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:50:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-27 19:50:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:30,288 INFO L225 Difference]: With dead ends: 53 [2024-11-27 19:50:30,288 INFO L226 Difference]: Without dead ends: 51 [2024-11-27 19:50:30,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:50:30,291 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:30,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 80 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:50:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-27 19:50:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2024-11-27 19:50:30,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 19:50:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2024-11-27 19:50:30,301 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 12 [2024-11-27 19:50:30,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:30,301 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2024-11-27 19:50:30,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:30,301 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2024-11-27 19:50:30,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 19:50:30,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:30,302 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:30,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 19:50:30,302 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:30,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash -182979434, now seen corresponding path program 1 times [2024-11-27 19:50:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:30,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268173631] [2024-11-27 19:50:30,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:30,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:30,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268173631] [2024-11-27 19:50:30,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268173631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915131490] [2024-11-27 19:50:30,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:30,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:30,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:30,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:30,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:50:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:30,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 19:50:30,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:30,601 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:30,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915131490] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:30,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:30,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-27 19:50:30,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667663691] [2024-11-27 19:50:30,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:30,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:50:30,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:30,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:50:30,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:50:30,776 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:31,051 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2024-11-27 19:50:31,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:50:31,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-27 19:50:31,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:31,053 INFO L225 Difference]: With dead ends: 109 [2024-11-27 19:50:31,053 INFO L226 Difference]: Without dead ends: 93 [2024-11-27 19:50:31,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:50:31,055 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 126 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:31,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 248 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:50:31,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-27 19:50:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2024-11-27 19:50:31,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 62 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 19:50:31,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2024-11-27 19:50:31,069 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 16 [2024-11-27 19:50:31,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:31,069 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2024-11-27 19:50:31,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:31,069 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2024-11-27 19:50:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-27 19:50:31,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:31,070 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:31,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 19:50:31,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:31,274 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:31,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash 858638830, now seen corresponding path program 1 times [2024-11-27 19:50:31,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:31,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103616258] [2024-11-27 19:50:31,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:31,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 19:50:31,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:31,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103616258] [2024-11-27 19:50:31,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103616258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:31,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:31,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:31,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290268196] [2024-11-27 19:50:31,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:31,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:31,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:31,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:31,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:31,413 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:50:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:31,441 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2024-11-27 19:50:31,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:31,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-27 19:50:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:31,443 INFO L225 Difference]: With dead ends: 92 [2024-11-27 19:50:31,443 INFO L226 Difference]: Without dead ends: 90 [2024-11-27 19:50:31,444 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 [2024-11-27 19:50:31,445 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:31,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 80 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-27 19:50:31,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-27 19:50:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 72 states have internal predecessors, (87), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-27 19:50:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2024-11-27 19:50:31,459 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 24 [2024-11-27 19:50:31,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:31,460 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-11-27 19:50:31,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:50:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2024-11-27 19:50:31,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 19:50:31,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:31,462 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:31,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:50:31,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:31,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1790531986, now seen corresponding path program 1 times [2024-11-27 19:50:31,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:31,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629866763] [2024-11-27 19:50:31,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:31,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 19:50:31,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:31,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629866763] [2024-11-27 19:50:31,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629866763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:31,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:31,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:50:31,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129991722] [2024-11-27 19:50:31,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:31,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:50:31,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:31,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:50:31,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:50:31,571 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:50:31,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:31,598 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2024-11-27 19:50:31,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:50:31,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-27 19:50:31,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:31,600 INFO L225 Difference]: With dead ends: 102 [2024-11-27 19:50:31,600 INFO L226 Difference]: Without dead ends: 100 [2024-11-27 19:50:31,601 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 [2024-11-27 19:50:31,601 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:31,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 90 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:31,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-27 19:50:31,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-27 19:50:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.25) internal successors, (95), 80 states have internal predecessors, (95), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-27 19:50:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2024-11-27 19:50:31,616 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 29 [2024-11-27 19:50:31,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:31,616 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2024-11-27 19:50:31,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 19:50:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2024-11-27 19:50:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 19:50:31,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:31,617 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] [2024-11-27 19:50:31,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:50:31,617 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:31,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1502278371, now seen corresponding path program 1 times [2024-11-27 19:50:31,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:31,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167822880] [2024-11-27 19:50:31,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:31,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 19:50:31,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:31,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167822880] [2024-11-27 19:50:31,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167822880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:31,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:31,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:31,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65740198] [2024-11-27 19:50:31,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:31,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:31,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:31,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:31,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:31,652 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:31,666 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2024-11-27 19:50:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:31,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-11-27 19:50:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:31,668 INFO L225 Difference]: With dead ends: 100 [2024-11-27 19:50:31,668 INFO L226 Difference]: Without dead ends: 99 [2024-11-27 19:50:31,668 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 [2024-11-27 19:50:31,669 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:31,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 53 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:31,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-27 19:50:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-27 19:50:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 79 states have internal predecessors, (92), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-27 19:50:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2024-11-27 19:50:31,684 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 29 [2024-11-27 19:50:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:31,684 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2024-11-27 19:50:31,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2024-11-27 19:50:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 19:50:31,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:31,685 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 19:50:31,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 19:50:31,689 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:31,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2091519942, now seen corresponding path program 1 times [2024-11-27 19:50:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:31,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217718690] [2024-11-27 19:50:31,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:31,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:31,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:31,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217718690] [2024-11-27 19:50:31,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217718690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:31,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059992048] [2024-11-27 19:50:31,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:31,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:31,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:31,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:31,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:50:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:32,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 19:50:32,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:32,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:32,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059992048] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:32,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:32,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-27 19:50:32,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612820767] [2024-11-27 19:50:32,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:32,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 19:50:32,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:32,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 19:50:32,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2024-11-27 19:50:32,578 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand has 28 states, 25 states have (on average 1.96) internal successors, (49), 16 states have internal predecessors, (49), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:33,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:33,174 INFO L93 Difference]: Finished difference Result 242 states and 260 transitions. [2024-11-27 19:50:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 19:50:33,175 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 1.96) internal successors, (49), 16 states have internal predecessors, (49), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-27 19:50:33,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:33,177 INFO L225 Difference]: With dead ends: 242 [2024-11-27 19:50:33,177 INFO L226 Difference]: Without dead ends: 212 [2024-11-27 19:50:33,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=1308, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 19:50:33,180 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 291 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:33,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 394 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:50:33,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-27 19:50:33,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 194. [2024-11-27 19:50:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 152 states have (on average 1.2039473684210527) internal successors, (183), 155 states have internal predecessors, (183), 15 states have call successors, (15), 14 states have call predecessors, (15), 22 states have return successors, (24), 24 states have call predecessors, (24), 14 states have call successors, (24) [2024-11-27 19:50:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 222 transitions. [2024-11-27 19:50:33,212 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 222 transitions. Word has length 31 [2024-11-27 19:50:33,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:33,212 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 222 transitions. [2024-11-27 19:50:33,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 1.96) internal successors, (49), 16 states have internal predecessors, (49), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 222 transitions. [2024-11-27 19:50:33,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 19:50:33,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:33,213 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:33,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:50:33,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:33,417 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:33,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash -308357491, now seen corresponding path program 1 times [2024-11-27 19:50:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:33,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303534658] [2024-11-27 19:50:33,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 19:50:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303534658] [2024-11-27 19:50:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303534658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:33,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:50:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72796915] [2024-11-27 19:50:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:33,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:33,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:33,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:33,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:33,527 INFO L87 Difference]: Start difference. First operand 194 states and 222 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:33,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:33,588 INFO L93 Difference]: Finished difference Result 223 states and 257 transitions. [2024-11-27 19:50:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:33,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2024-11-27 19:50:33,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:33,590 INFO L225 Difference]: With dead ends: 223 [2024-11-27 19:50:33,590 INFO L226 Difference]: Without dead ends: 222 [2024-11-27 19:50:33,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:33,591 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:33,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:33,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-27 19:50:33,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 199. [2024-11-27 19:50:33,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.1987179487179487) internal successors, (187), 159 states have internal predecessors, (187), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2024-11-27 19:50:33,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2024-11-27 19:50:33,617 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 40 [2024-11-27 19:50:33,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:33,618 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2024-11-27 19:50:33,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:33,618 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2024-11-27 19:50:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 19:50:33,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:33,619 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:33,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 19:50:33,619 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:33,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:33,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1422197, now seen corresponding path program 1 times [2024-11-27 19:50:33,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:33,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969247052] [2024-11-27 19:50:33,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:33,686 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 19:50:33,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:33,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969247052] [2024-11-27 19:50:33,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969247052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:33,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:33,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:50:33,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086445920] [2024-11-27 19:50:33,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:33,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:50:33,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:33,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:50:33,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:50:33,688 INFO L87 Difference]: Start difference. First operand 199 states and 227 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:33,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:33,714 INFO L93 Difference]: Finished difference Result 199 states and 227 transitions. [2024-11-27 19:50:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:50:33,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-27 19:50:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:33,716 INFO L225 Difference]: With dead ends: 199 [2024-11-27 19:50:33,716 INFO L226 Difference]: Without dead ends: 198 [2024-11-27 19:50:33,716 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 [2024-11-27 19:50:33,717 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:33,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:33,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-27 19:50:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-27 19:50:33,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 158 states have internal predecessors, (180), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2024-11-27 19:50:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 220 transitions. [2024-11-27 19:50:33,744 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 220 transitions. Word has length 44 [2024-11-27 19:50:33,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:33,745 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 220 transitions. [2024-11-27 19:50:33,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:33,746 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 220 transitions. [2024-11-27 19:50:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 19:50:33,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:33,749 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:50:33,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 19:50:33,749 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:33,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:33,750 INFO L85 PathProgramCache]: Analyzing trace with hash -44088030, now seen corresponding path program 1 times [2024-11-27 19:50:33,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:33,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537729659] [2024-11-27 19:50:33,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:33,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 19:50:33,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537729659] [2024-11-27 19:50:33,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537729659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:50:33,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:50:33,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 19:50:33,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326282388] [2024-11-27 19:50:33,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:50:33,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 19:50:33,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:33,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 19:50:33,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:33,867 INFO L87 Difference]: Start difference. First operand 198 states and 220 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:33,916 INFO L93 Difference]: Finished difference Result 247 states and 274 transitions. [2024-11-27 19:50:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:50:33,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2024-11-27 19:50:33,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:33,918 INFO L225 Difference]: With dead ends: 247 [2024-11-27 19:50:33,919 INFO L226 Difference]: Without dead ends: 246 [2024-11-27 19:50:33,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 19:50:33,920 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:33,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:50:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-27 19:50:33,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-27 19:50:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 195 states have (on average 1.123076923076923) internal successors, (219), 196 states have internal predecessors, (219), 15 states have call successors, (15), 14 states have call predecessors, (15), 32 states have return successors, (35), 35 states have call predecessors, (35), 14 states have call successors, (35) [2024-11-27 19:50:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 269 transitions. [2024-11-27 19:50:33,951 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 269 transitions. Word has length 45 [2024-11-27 19:50:33,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:33,952 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 269 transitions. [2024-11-27 19:50:33,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 19:50:33,953 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 269 transitions. [2024-11-27 19:50:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 19:50:33,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:33,957 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 19:50:33,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:50:33,957 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:33,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:33,958 INFO L85 PathProgramCache]: Analyzing trace with hash 91465175, now seen corresponding path program 1 times [2024-11-27 19:50:33,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:33,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760799239] [2024-11-27 19:50:33,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:33,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 19:50:34,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:34,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760799239] [2024-11-27 19:50:34,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760799239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:34,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352802784] [2024-11-27 19:50:34,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:34,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:34,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:34,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:34,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:50:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:34,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 19:50:34,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 19:50:34,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 19:50:34,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352802784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:34,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:34,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-27 19:50:34,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105330385] [2024-11-27 19:50:34,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:34,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:50:34,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:34,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:50:34,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:50:34,475 INFO L87 Difference]: Start difference. First operand 246 states and 269 transitions. Second operand has 16 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 19:50:34,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:34,562 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2024-11-27 19:50:34,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:50:34,563 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2024-11-27 19:50:34,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:34,565 INFO L225 Difference]: With dead ends: 346 [2024-11-27 19:50:34,565 INFO L226 Difference]: Without dead ends: 319 [2024-11-27 19:50:34,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:50:34,566 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:34,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:50:34,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-27 19:50:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 271. [2024-11-27 19:50:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.1069767441860465) internal successors, (238), 216 states have internal predecessors, (238), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2024-11-27 19:50:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2024-11-27 19:50:34,596 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 45 [2024-11-27 19:50:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:34,596 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2024-11-27 19:50:34,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-27 19:50:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2024-11-27 19:50:34,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-27 19:50:34,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:34,597 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 19:50:34,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:50:34,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 19:50:34,802 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:34,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1373606826, now seen corresponding path program 1 times [2024-11-27 19:50:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:34,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91709653] [2024-11-27 19:50:34,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 19:50:35,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91709653] [2024-11-27 19:50:35,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91709653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818538313] [2024-11-27 19:50:35,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:35,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:35,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:35,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:50:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:35,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 19:50:35,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 19:50:35,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 19:50:36,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818538313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:36,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:36,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 17] total 19 [2024-11-27 19:50:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622147859] [2024-11-27 19:50:36,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:36,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 19:50:36,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:36,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 19:50:36,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:50:36,569 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 9 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-27 19:50:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:36,810 INFO L93 Difference]: Finished difference Result 459 states and 496 transitions. [2024-11-27 19:50:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:50:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 9 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) Word has length 60 [2024-11-27 19:50:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:36,812 INFO L225 Difference]: With dead ends: 459 [2024-11-27 19:50:36,812 INFO L226 Difference]: Without dead ends: 271 [2024-11-27 19:50:36,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 108 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2024-11-27 19:50:36,813 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 90 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:36,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 190 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:50:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-27 19:50:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-27 19:50:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.0883720930232559) internal successors, (234), 216 states have internal predecessors, (234), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2024-11-27 19:50:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 289 transitions. [2024-11-27 19:50:36,834 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 289 transitions. Word has length 60 [2024-11-27 19:50:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:36,836 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 289 transitions. [2024-11-27 19:50:36,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 17 states have internal predecessors, (57), 9 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-27 19:50:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 289 transitions. [2024-11-27 19:50:36,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 19:50:36,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:36,838 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2024-11-27 19:50:36,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 19:50:37,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 19:50:37,042 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:37,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:37,043 INFO L85 PathProgramCache]: Analyzing trace with hash -944165366, now seen corresponding path program 2 times [2024-11-27 19:50:37,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:37,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974286832] [2024-11-27 19:50:37,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:37,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:37,060 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:37,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:37,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:37,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974286832] [2024-11-27 19:50:37,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974286832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:37,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105782631] [2024-11-27 19:50:37,640 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:37,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:37,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:37,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:37,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:50:37,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:37,696 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:37,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 19:50:37,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:37,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:38,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105782631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:38,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:38,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2024-11-27 19:50:38,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31161471] [2024-11-27 19:50:38,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:38,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-27 19:50:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:38,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-27 19:50:38,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2024-11-27 19:50:38,701 INFO L87 Difference]: Start difference. First operand 271 states and 289 transitions. Second operand has 56 states, 53 states have (on average 1.9811320754716981) internal successors, (105), 30 states have internal predecessors, (105), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:40,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:40,064 INFO L93 Difference]: Finished difference Result 591 states and 615 transitions. [2024-11-27 19:50:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-27 19:50:40,065 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 1.9811320754716981) internal successors, (105), 30 states have internal predecessors, (105), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-27 19:50:40,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:40,068 INFO L225 Difference]: With dead ends: 591 [2024-11-27 19:50:40,068 INFO L226 Difference]: Without dead ends: 589 [2024-11-27 19:50:40,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=970, Invalid=5510, Unknown=0, NotChecked=0, Total=6480 [2024-11-27 19:50:40,075 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 873 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:40,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 588 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:50:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-27 19:50:40,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 564. [2024-11-27 19:50:40,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 450 states have (on average 1.0844444444444445) internal successors, (488), 450 states have internal predecessors, (488), 28 states have call successors, (28), 27 states have call predecessors, (28), 82 states have return successors, (86), 86 states have call predecessors, (86), 27 states have call successors, (86) [2024-11-27 19:50:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 602 transitions. [2024-11-27 19:50:40,145 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 602 transitions. Word has length 66 [2024-11-27 19:50:40,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:40,146 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 602 transitions. [2024-11-27 19:50:40,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 1.9811320754716981) internal successors, (105), 30 states have internal predecessors, (105), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 602 transitions. [2024-11-27 19:50:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 19:50:40,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:40,147 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-27 19:50:40,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 19:50:40,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 19:50:40,348 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:40,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:40,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1023813575, now seen corresponding path program 1 times [2024-11-27 19:50:40,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:40,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699770512] [2024-11-27 19:50:40,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:40,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-27 19:50:40,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:40,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699770512] [2024-11-27 19:50:40,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699770512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:40,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888352765] [2024-11-27 19:50:40,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:50:40,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:40,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:40,599 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:40,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:50:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:50:40,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 19:50:40,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 19:50:41,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:50:43,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888352765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:43,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:43,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 19] total 38 [2024-11-27 19:50:43,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378874050] [2024-11-27 19:50:43,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:43,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-27 19:50:43,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:43,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-27 19:50:43,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1292, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 19:50:43,008 INFO L87 Difference]: Start difference. First operand 564 states and 602 transitions. Second operand has 38 states, 36 states have (on average 3.0) internal successors, (108), 34 states have internal predecessors, (108), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-27 19:50:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:43,803 INFO L93 Difference]: Finished difference Result 590 states and 628 transitions. [2024-11-27 19:50:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 19:50:43,803 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 3.0) internal successors, (108), 34 states have internal predecessors, (108), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) Word has length 70 [2024-11-27 19:50:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:43,805 INFO L225 Difference]: With dead ends: 590 [2024-11-27 19:50:43,805 INFO L226 Difference]: Without dead ends: 140 [2024-11-27 19:50:43,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 109 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=295, Invalid=2255, Unknown=0, NotChecked=0, Total=2550 [2024-11-27 19:50:43,808 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 97 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:43,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 212 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:50:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-27 19:50:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2024-11-27 19:50:43,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2024-11-27 19:50:43,819 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 70 [2024-11-27 19:50:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:43,819 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2024-11-27 19:50:43,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 3.0) internal successors, (108), 34 states have internal predecessors, (108), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-27 19:50:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2024-11-27 19:50:43,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 19:50:43,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:43,821 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1, 1] [2024-11-27 19:50:43,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 19:50:44,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 19:50:44,025 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:44,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1735112018, now seen corresponding path program 2 times [2024-11-27 19:50:44,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:44,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678852460] [2024-11-27 19:50:44,026 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:44,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:44,050 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:44,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:45,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:45,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678852460] [2024-11-27 19:50:45,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678852460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:45,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406583036] [2024-11-27 19:50:45,982 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:50:45,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:45,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:45,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:45,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:50:46,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:50:46,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:46,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-27 19:50:46,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:46,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:50:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:48,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406583036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:50:48,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:50:48,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2024-11-27 19:50:48,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449265489] [2024-11-27 19:50:48,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:50:48,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2024-11-27 19:50:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:50:48,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2024-11-27 19:50:48,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1514, Invalid=10042, Unknown=0, NotChecked=0, Total=11556 [2024-11-27 19:50:48,909 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 108 states, 105 states have (on average 1.9904761904761905) internal successors, (209), 56 states have internal predecessors, (209), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:51,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:50:51,588 INFO L93 Difference]: Finished difference Result 277 states and 302 transitions. [2024-11-27 19:50:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-27 19:50:51,588 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 105 states have (on average 1.9904761904761905) internal successors, (209), 56 states have internal predecessors, (209), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-11-27 19:50:51,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:50:51,590 INFO L225 Difference]: With dead ends: 277 [2024-11-27 19:50:51,590 INFO L226 Difference]: Without dead ends: 275 [2024-11-27 19:50:51,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7600 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3672, Invalid=21768, Unknown=0, NotChecked=0, Total=25440 [2024-11-27 19:50:51,597 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 681 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:50:51,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 87 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:50:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-27 19:50:51,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2024-11-27 19:50:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.0092165898617511) internal successors, (219), 218 states have internal predecessors, (219), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 273 transitions. [2024-11-27 19:50:51,623 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 273 transitions. Word has length 131 [2024-11-27 19:50:51,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:50:51,624 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 273 transitions. [2024-11-27 19:50:51,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 105 states have (on average 1.9904761904761905) internal successors, (209), 56 states have internal predecessors, (209), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:50:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 273 transitions. [2024-11-27 19:50:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-27 19:50:51,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:50:51,627 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1] [2024-11-27 19:50:51,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 19:50:51,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 19:50:51,829 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:50:51,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:50:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash -941956646, now seen corresponding path program 3 times [2024-11-27 19:50:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:50:51,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580468622] [2024-11-27 19:50:51,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:50:51,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:50:51,914 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-27 19:50:51,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:58,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:50:58,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580468622] [2024-11-27 19:50:58,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580468622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:50:58,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616411677] [2024-11-27 19:50:58,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:50:58,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:50:58,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:50:58,774 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:50:58,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 19:50:58,962 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-27 19:50:58,963 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:50:58,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-11-27 19:50:58,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:50:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:50:59,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:08,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616411677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:08,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:08,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108, 108] total 215 [2024-11-27 19:51:08,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289685983] [2024-11-27 19:51:08,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:08,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2024-11-27 19:51:08,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:08,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2024-11-27 19:51:08,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5944, Invalid=40496, Unknown=0, NotChecked=0, Total=46440 [2024-11-27 19:51:08,146 INFO L87 Difference]: Start difference. First operand 273 states and 273 transitions. Second operand has 216 states, 213 states have (on average 1.9953051643192488) internal successors, (425), 110 states have internal predecessors, (425), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:17,059 INFO L93 Difference]: Finished difference Result 542 states and 593 transitions. [2024-11-27 19:51:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2024-11-27 19:51:17,060 INFO L78 Accepts]: Start accepts. Automaton has has 216 states, 213 states have (on average 1.9953051643192488) internal successors, (425), 110 states have internal predecessors, (425), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2024-11-27 19:51:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:17,063 INFO L225 Difference]: With dead ends: 542 [2024-11-27 19:51:17,063 INFO L226 Difference]: Without dead ends: 540 [2024-11-27 19:51:17,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32497 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=14530, Invalid=88190, Unknown=0, NotChecked=0, Total=102720 [2024-11-27 19:51:17,070 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 1585 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:17,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 105 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:51:17,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-27 19:51:17,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2024-11-27 19:51:17,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 429 states have (on average 1.0046620046620047) internal successors, (431), 430 states have internal predecessors, (431), 107 states have call successors, (107), 107 states have call predecessors, (107), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2024-11-27 19:51:17,112 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 266 [2024-11-27 19:51:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:17,113 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2024-11-27 19:51:17,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 213 states have (on average 1.9953051643192488) internal successors, (425), 110 states have internal predecessors, (425), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2024-11-27 19:51:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-27 19:51:17,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:17,125 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 1, 1, 1, 1] [2024-11-27 19:51:17,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 19:51:17,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 19:51:17,329 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 19:51:17,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:17,330 INFO L85 PathProgramCache]: Analyzing trace with hash -640380494, now seen corresponding path program 3 times [2024-11-27 19:51:17,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:17,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821811369] [2024-11-27 19:51:17,330 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:51:17,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:17,393 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-27 19:51:17,393 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 6881 proven. 768 refuted. 0 times theorem prover too weak. 6027 trivial. 0 not checked. [2024-11-27 19:51:17,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:17,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821811369] [2024-11-27 19:51:17,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821811369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:17,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083577385] [2024-11-27 19:51:17,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 19:51:17,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:17,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:17,930 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:17,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 19:51:18,262 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-27 19:51:18,262 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:51:18,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 19:51:18,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2024-11-27 19:51:18,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2024-11-27 19:51:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083577385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:18,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:51:18,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 15 [2024-11-27 19:51:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649218074] [2024-11-27 19:51:18,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:18,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:51:18,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:18,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:51:18,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:51:18,472 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand has 15 states, 14 states have (on average 3.0) internal successors, (42), 9 states have internal predecessors, (42), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:18,548 INFO L93 Difference]: Finished difference Result 538 states and 538 transitions. [2024-11-27 19:51:18,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:51:18,549 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0) internal successors, (42), 9 states have internal predecessors, (42), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 531 [2024-11-27 19:51:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:18,550 INFO L225 Difference]: With dead ends: 538 [2024-11-27 19:51:18,550 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:51:18,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:51:18,551 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:18,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 49 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:18,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:51:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:51:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:51:18,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-11-27 19:51:18,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:18,554 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:51:18,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0) internal successors, (42), 9 states have internal predecessors, (42), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:51:18,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:51:18,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-27 19:51:18,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-27 19:51:18,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-27 19:51:18,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-27 19:51:18,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-27 19:51:18,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-27 19:51:18,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-27 19:51:18,563 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-27 19:51:18,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 19:51:18,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:18,771 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:18,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:51:19,796 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:51:19,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:51:19 BoogieIcfgContainer [2024-11-27 19:51:19,805 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:51:19,805 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:51:19,805 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:51:19,806 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:51:19,806 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:50:28" (3/4) ... [2024-11-27 19:51:19,809 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:51:19,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2024-11-27 19:51:19,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-27 19:51:19,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-27 19:51:19,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 19:51:19,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 19:51:19,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:51:19,898 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:51:19,899 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:51:19,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:51:19,900 INFO L158 Benchmark]: Toolchain (without parser) took 51883.40ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 92.9MB in the beginning and 408.3MB in the end (delta: -315.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-27 19:51:19,900 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:19,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.07ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:51:19,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.11ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.2MB in the end (delta: 864.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:19,902 INFO L158 Benchmark]: Boogie Preprocessor took 33.03ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:19,902 INFO L158 Benchmark]: RCFGBuilder took 369.74ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 70.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:51:19,903 INFO L158 Benchmark]: TraceAbstraction took 51076.87ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 69.6MB in the beginning and 412.2MB in the end (delta: -342.7MB). Peak memory consumption was 220.6MB. Max. memory is 16.1GB. [2024-11-27 19:51:19,904 INFO L158 Benchmark]: Witness Printer took 93.82ms. Allocated memory is still 478.2MB. Free memory was 412.2MB in the beginning and 408.3MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:19,905 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.07ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.11ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.2MB in the end (delta: 864.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.03ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.74ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 70.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 51076.87ms. Allocated memory was 117.4MB in the beginning and 478.2MB in the end (delta: 360.7MB). Free memory was 69.6MB in the beginning and 412.2MB in the end (delta: -342.7MB). Peak memory consumption was 220.6MB. Max. memory is 16.1GB. * Witness Printer took 93.82ms. Allocated memory is still 478.2MB. Free memory was 412.2MB in the beginning and 408.3MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 49.9s, OverallIterations: 19, TraceHistogramMax: 53, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3861 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3857 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2571 mSDsCounter, 273 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3502 IncrementalHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 273 mSolverCounterUnsat, 437 mSDtfsCounter, 3502 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2945 GetRequests, 2178 SyntacticMatches, 16 SemanticMatches, 751 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42834 ImplicationChecksByTransitivity, 29.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=564occurred in iteration=15, InterpolantAutomatonStates: 517, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 150 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 30.0s InterpolantComputationTime, 2679 NumberOfCodeBlocks, 2179 NumberOfCodeBlocksAsserted, 138 NumberOfCheckSat, 3858 ConstructedInterpolants, 0 QuantifiedInterpolants, 10444 SizeOfPredicates, 120 NumberOfNonLiveVariables, 1926 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 40641/54493 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 19:51:19,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0ccff1-dae1-4bd6-8176-831fd4ab443f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE