./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.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_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/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_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/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_4f456e8f-2810-4871-9689-8987a59c2517/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 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:53:36,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:53:36,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:53:36,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:53:36,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:53:36,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:53:36,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:53:36,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:53:36,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:53:36,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:53:36,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:53:36,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:53:36,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:53:36,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:53:36,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:53:36,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:53:36,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:53:36,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:53:36,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:53:36,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:53:36,454 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:36,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:36,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:36,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:53:36,455 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:53:36,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:53:36,456 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_4f456e8f-2810-4871-9689-8987a59c2517/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 -> 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 [2024-11-28 04:53:36,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:53:36,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:53:36,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:53:36,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:53:36,798 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:53:36,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2024-11-28 04:53:39,858 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/data/3f4b5c80a/020a7a7745e645478ba3b24974a3937f/FLAGbb879e832 [2024-11-28 04:53:40,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:53:40,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2024-11-28 04:53:40,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/data/3f4b5c80a/020a7a7745e645478ba3b24974a3937f/FLAGbb879e832 [2024-11-28 04:53:40,230 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/data/3f4b5c80a/020a7a7745e645478ba3b24974a3937f [2024-11-28 04:53:40,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:53:40,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:53:40,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:40,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:53:40,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:53:40,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521d1dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40, skipping insertion in model container [2024-11-28 04:53:40,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:53:40,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:40,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:53:40,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:40,509 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:53:40,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40 WrapperNode [2024-11-28 04:53:40,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:40,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:40,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:53:40,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:53:40,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,548 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-28 04:53:40,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:40,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:53:40,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:53:40,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:53:40,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,571 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]. [2024-11-28 04:53:40,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,574 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:53:40,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:53:40,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:53:40,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:53:40,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (1/1) ... [2024-11-28 04:53:40,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:53:40,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:40,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:53:40,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:53:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:53:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:53:40,655 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2024-11-28 04:53:40,656 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2024-11-28 04:53:40,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:53:40,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:53:40,656 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-28 04:53:40,656 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-28 04:53:40,726 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:53:40,728 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:53:40,942 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 04:53:40,943 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:53:40,961 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:53:40,963 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:53:40,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:40 BoogieIcfgContainer [2024-11-28 04:53:40,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:53:40,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:53:40,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:53:40,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:53:40,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:53:40" (1/3) ... [2024-11-28 04:53:40,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42501daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:40, skipping insertion in model container [2024-11-28 04:53:40,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:40" (2/3) ... [2024-11-28 04:53:40,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42501daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:53:40, skipping insertion in model container [2024-11-28 04:53:40,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:40" (3/3) ... [2024-11-28 04:53:40,979 INFO L128 eAbstractionObserver]: Analyzing ICFG id2_i5_o5-1.c [2024-11-28 04:53:40,998 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:53:41,001 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id2_i5_o5-1.c that has 3 procedures, 38 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-11-28 04:53:41,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:53:41,105 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;@3a0d9a06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:53:41,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 04:53:41,110 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) [2024-11-28 04:53:41,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-28 04:53:41,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:41,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:53:41,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:41,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:41,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1363745714, now seen corresponding path program 1 times [2024-11-28 04:53:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:41,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251781580] [2024-11-28 04:53:41,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:41,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:41,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251781580] [2024-11-28 04:53:41,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251781580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:41,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:41,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844900787] [2024-11-28 04:53:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:41,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:41,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:41,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:41,475 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) [2024-11-28 04:53:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:41,603 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2024-11-28 04:53:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:41,606 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 [2024-11-28 04:53:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:41,613 INFO L225 Difference]: With dead ends: 60 [2024-11-28 04:53:41,613 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 04:53:41,620 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 [2024-11-28 04:53:41,625 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 [2024-11-28 04:53:41,626 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] [2024-11-28 04:53:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 04:53:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-28 04:53:41,670 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) [2024-11-28 04:53:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-11-28 04:53:41,683 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 6 [2024-11-28 04:53:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:41,684 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-11-28 04:53:41,684 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) [2024-11-28 04:53:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-11-28 04:53:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 04:53:41,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:41,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:41,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:53:41,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:41,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:41,688 INFO L85 PathProgramCache]: Analyzing trace with hash -673555755, now seen corresponding path program 1 times [2024-11-28 04:53:41,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:41,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077517468] [2024-11-28 04:53:41,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:41,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:41,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:41,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077517468] [2024-11-28 04:53:41,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077517468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:41,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:41,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:53:41,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406465759] [2024-11-28 04:53:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:41,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:53:41,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:41,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:53:41,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:53:41,827 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) [2024-11-28 04:53:41,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:41,907 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2024-11-28 04:53:41,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:53:41,908 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 [2024-11-28 04:53:41,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:41,909 INFO L225 Difference]: With dead ends: 42 [2024-11-28 04:53:41,909 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 04:53:41,909 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 [2024-11-28 04:53:41,910 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:41,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 113 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:53:41,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 04:53:41,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2024-11-28 04:53:41,922 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) [2024-11-28 04:53:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-11-28 04:53:41,924 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2024-11-28 04:53:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:41,924 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-11-28 04:53:41,924 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) [2024-11-28 04:53:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-11-28 04:53:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:53:41,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:41,925 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:41,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:53:41,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:41,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1526536194, now seen corresponding path program 1 times [2024-11-28 04:53:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:41,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177905323] [2024-11-28 04:53:41,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:41,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:42,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:42,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177905323] [2024-11-28 04:53:42,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177905323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:42,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:42,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:42,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921176705] [2024-11-28 04:53:42,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:42,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:42,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:42,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:42,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:42,134 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) [2024-11-28 04:53:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:42,313 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2024-11-28 04:53:42,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:42,317 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 [2024-11-28 04:53:42,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:42,319 INFO L225 Difference]: With dead ends: 62 [2024-11-28 04:53:42,319 INFO L226 Difference]: Without dead ends: 54 [2024-11-28 04:53:42,320 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 [2024-11-28 04:53:42,321 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 [2024-11-28 04:53:42,322 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] [2024-11-28 04:53:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-28 04:53:42,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2024-11-28 04:53:42,338 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) [2024-11-28 04:53:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2024-11-28 04:53:42,341 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 11 [2024-11-28 04:53:42,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:42,342 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2024-11-28 04:53:42,342 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) [2024-11-28 04:53:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2024-11-28 04:53:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:53:42,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:42,343 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:42,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:53:42,344 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:42,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash 77981796, now seen corresponding path program 1 times [2024-11-28 04:53:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:42,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807339634] [2024-11-28 04:53:42,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:42,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:42,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:42,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807339634] [2024-11-28 04:53:42,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807339634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:42,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:42,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:53:42,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722763677] [2024-11-28 04:53:42,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:42,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:53:42,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:42,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:53:42,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:53:42,500 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) [2024-11-28 04:53:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:42,635 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2024-11-28 04:53:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:53:42,636 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 [2024-11-28 04:53:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:42,639 INFO L225 Difference]: With dead ends: 53 [2024-11-28 04:53:42,639 INFO L226 Difference]: Without dead ends: 51 [2024-11-28 04:53:42,640 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 [2024-11-28 04:53:42,641 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 [2024-11-28 04:53:42,642 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] [2024-11-28 04:53:42,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-28 04:53:42,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2024-11-28 04:53:42,663 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) [2024-11-28 04:53:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2024-11-28 04:53:42,664 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 12 [2024-11-28 04:53:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:42,664 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2024-11-28 04:53:42,665 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) [2024-11-28 04:53:42,665 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2024-11-28 04:53:42,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:53:42,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:42,665 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:42,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:53:42,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:42,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:42,666 INFO L85 PathProgramCache]: Analyzing trace with hash -182979434, now seen corresponding path program 1 times [2024-11-28 04:53:42,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:42,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484735226] [2024-11-28 04:53:42,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:42,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:42,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:42,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484735226] [2024-11-28 04:53:42,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484735226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:42,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500576999] [2024-11-28 04:53:42,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:42,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:42,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:42,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:42,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:53:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:53:42,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:43,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:43,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500576999] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:43,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:43,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-28 04:53:43,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422755037] [2024-11-28 04:53:43,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:43,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:53:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:43,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:53:43,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:53:43,301 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) [2024-11-28 04:53:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:43,627 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2024-11-28 04:53:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:53:43,628 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 [2024-11-28 04:53:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:43,631 INFO L225 Difference]: With dead ends: 109 [2024-11-28 04:53:43,631 INFO L226 Difference]: Without dead ends: 93 [2024-11-28 04:53:43,631 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 [2024-11-28 04:53:43,632 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 126 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-28 04:53:43,633 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] [2024-11-28 04:53:43,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-28 04:53:43,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2024-11-28 04:53:43,657 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) [2024-11-28 04:53:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2024-11-28 04:53:43,663 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 16 [2024-11-28 04:53:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:43,664 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2024-11-28 04:53:43,664 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) [2024-11-28 04:53:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2024-11-28 04:53:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 04:53:43,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:43,665 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:43,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:43,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:43,872 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:43,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash 858638830, now seen corresponding path program 1 times [2024-11-28 04:53:43,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:43,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227038874] [2024-11-28 04:53:43,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:43,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:43,990 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:53:43,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:43,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227038874] [2024-11-28 04:53:43,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227038874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:43,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:43,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:43,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940943166] [2024-11-28 04:53:43,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:43,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:43,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:43,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:43,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:43,994 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) [2024-11-28 04:53:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:44,039 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2024-11-28 04:53:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:44,040 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 [2024-11-28 04:53:44,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:44,042 INFO L225 Difference]: With dead ends: 92 [2024-11-28 04:53:44,042 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 04:53:44,044 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 [2024-11-28 04:53:44,045 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 [2024-11-28 04:53:44,046 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] [2024-11-28 04:53:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 04:53:44,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-28 04:53:44,072 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) [2024-11-28 04:53:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2024-11-28 04:53:44,076 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 24 [2024-11-28 04:53:44,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:44,076 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-11-28 04:53:44,077 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) [2024-11-28 04:53:44,077 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2024-11-28 04:53:44,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:53:44,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:44,077 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:44,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:53:44,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:44,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:44,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1790531986, now seen corresponding path program 1 times [2024-11-28 04:53:44,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293666914] [2024-11-28 04:53:44,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:44,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 04:53:44,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:44,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293666914] [2024-11-28 04:53:44,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293666914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:44,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:44,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:53:44,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386978602] [2024-11-28 04:53:44,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:44,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:53:44,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:44,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:53:44,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:53:44,175 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) [2024-11-28 04:53:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:44,206 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2024-11-28 04:53:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:53:44,206 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 [2024-11-28 04:53:44,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:44,207 INFO L225 Difference]: With dead ends: 102 [2024-11-28 04:53:44,207 INFO L226 Difference]: Without dead ends: 100 [2024-11-28 04:53:44,208 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 [2024-11-28 04:53:44,209 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 [2024-11-28 04:53:44,209 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] [2024-11-28 04:53:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-28 04:53:44,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-28 04:53:44,235 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) [2024-11-28 04:53:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2024-11-28 04:53:44,237 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 29 [2024-11-28 04:53:44,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:44,237 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2024-11-28 04:53:44,237 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) [2024-11-28 04:53:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2024-11-28 04:53:44,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 04:53:44,238 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:44,239 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] [2024-11-28 04:53:44,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:53:44,239 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:44,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:44,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1502278371, now seen corresponding path program 1 times [2024-11-28 04:53:44,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:44,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564769820] [2024-11-28 04:53:44,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:44,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:53:44,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564769820] [2024-11-28 04:53:44,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564769820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:44,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:44,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:44,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019981446] [2024-11-28 04:53:44,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:44,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:44,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:44,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:44,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:44,345 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) [2024-11-28 04:53:44,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:44,363 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2024-11-28 04:53:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:44,365 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 [2024-11-28 04:53:44,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:44,366 INFO L225 Difference]: With dead ends: 100 [2024-11-28 04:53:44,366 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 04:53:44,367 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 [2024-11-28 04:53:44,368 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 [2024-11-28 04:53:44,368 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] [2024-11-28 04:53:44,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 04:53:44,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-28 04:53:44,392 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) [2024-11-28 04:53:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2024-11-28 04:53:44,396 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 29 [2024-11-28 04:53:44,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:44,397 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2024-11-28 04:53:44,397 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) [2024-11-28 04:53:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2024-11-28 04:53:44,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:53:44,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:44,400 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 04:53:44,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:53:44,401 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:44,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2091519942, now seen corresponding path program 1 times [2024-11-28 04:53:44,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:44,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969806994] [2024-11-28 04:53:44,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:44,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:44,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969806994] [2024-11-28 04:53:44,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969806994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:44,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083937321] [2024-11-28 04:53:44,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:44,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:44,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:44,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:44,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:53:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:44,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:53:44,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:44,912 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:44,912 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:45,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083937321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:45,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:45,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-28 04:53:45,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23897903] [2024-11-28 04:53:45,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:45,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:53:45,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:45,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:53:45,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:53:45,359 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) [2024-11-28 04:53:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:46,030 INFO L93 Difference]: Finished difference Result 242 states and 260 transitions. [2024-11-28 04:53:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:53:46,030 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 [2024-11-28 04:53:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:46,034 INFO L225 Difference]: With dead ends: 242 [2024-11-28 04:53:46,034 INFO L226 Difference]: Without dead ends: 212 [2024-11-28 04:53:46,035 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 [2024-11-28 04:53:46,036 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 [2024-11-28 04:53:46,037 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] [2024-11-28 04:53:46,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-28 04:53:46,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 194. [2024-11-28 04:53:46,091 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) [2024-11-28 04:53:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 222 transitions. [2024-11-28 04:53:46,096 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 222 transitions. Word has length 31 [2024-11-28 04:53:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:46,098 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 222 transitions. [2024-11-28 04:53:46,098 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) [2024-11-28 04:53:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 222 transitions. [2024-11-28 04:53:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:53:46,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:46,099 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] [2024-11-28 04:53:46,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:53:46,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:46,302 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:46,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash -308357491, now seen corresponding path program 1 times [2024-11-28 04:53:46,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:46,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270510404] [2024-11-28 04:53:46,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:46,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:46,448 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:46,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:46,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270510404] [2024-11-28 04:53:46,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270510404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:46,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:46,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:46,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838992538] [2024-11-28 04:53:46,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:46,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:46,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:46,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:46,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:46,451 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) [2024-11-28 04:53:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:46,518 INFO L93 Difference]: Finished difference Result 223 states and 257 transitions. [2024-11-28 04:53:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:46,519 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 [2024-11-28 04:53:46,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:46,521 INFO L225 Difference]: With dead ends: 223 [2024-11-28 04:53:46,523 INFO L226 Difference]: Without dead ends: 222 [2024-11-28 04:53:46,524 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 [2024-11-28 04:53:46,524 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 [2024-11-28 04:53:46,525 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] [2024-11-28 04:53:46,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-28 04:53:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 199. [2024-11-28 04:53:46,560 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) [2024-11-28 04:53:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2024-11-28 04:53:46,562 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 40 [2024-11-28 04:53:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:46,562 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2024-11-28 04:53:46,563 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) [2024-11-28 04:53:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2024-11-28 04:53:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:53:46,564 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:46,564 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] [2024-11-28 04:53:46,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:53:46,565 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:46,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:46,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1422197, now seen corresponding path program 1 times [2024-11-28 04:53:46,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:46,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453274552] [2024-11-28 04:53:46,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:46,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:53:46,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:46,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453274552] [2024-11-28 04:53:46,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453274552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:46,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:46,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:53:46,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992993778] [2024-11-28 04:53:46,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:46,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:53:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:46,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:53:46,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:53:46,618 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) [2024-11-28 04:53:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:46,645 INFO L93 Difference]: Finished difference Result 199 states and 227 transitions. [2024-11-28 04:53:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:53:46,646 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 [2024-11-28 04:53:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:46,647 INFO L225 Difference]: With dead ends: 199 [2024-11-28 04:53:46,648 INFO L226 Difference]: Without dead ends: 198 [2024-11-28 04:53:46,648 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 [2024-11-28 04:53:46,649 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 [2024-11-28 04:53:46,649 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] [2024-11-28 04:53:46,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-28 04:53:46,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-28 04:53:46,674 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) [2024-11-28 04:53:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 220 transitions. [2024-11-28 04:53:46,676 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 220 transitions. Word has length 44 [2024-11-28 04:53:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:46,677 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 220 transitions. [2024-11-28 04:53:46,677 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) [2024-11-28 04:53:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 220 transitions. [2024-11-28 04:53:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:53:46,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:46,681 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] [2024-11-28 04:53:46,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:53:46,681 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:46,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash -44088030, now seen corresponding path program 1 times [2024-11-28 04:53:46,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:46,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795610699] [2024-11-28 04:53:46,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:53:46,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:46,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795610699] [2024-11-28 04:53:46,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795610699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:46,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:46,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:53:46,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456556767] [2024-11-28 04:53:46,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:46,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:53:46,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:46,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:53:46,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:53:46,790 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) [2024-11-28 04:53:46,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:46,853 INFO L93 Difference]: Finished difference Result 247 states and 274 transitions. [2024-11-28 04:53:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:53:46,853 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 [2024-11-28 04:53:46,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:46,856 INFO L225 Difference]: With dead ends: 247 [2024-11-28 04:53:46,856 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:53:46,857 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 [2024-11-28 04:53:46,857 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 [2024-11-28 04:53:46,858 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] [2024-11-28 04:53:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:53:46,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-28 04:53:46,890 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) [2024-11-28 04:53:46,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 269 transitions. [2024-11-28 04:53:46,893 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 269 transitions. Word has length 45 [2024-11-28 04:53:46,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:46,893 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 269 transitions. [2024-11-28 04:53:46,894 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) [2024-11-28 04:53:46,894 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 269 transitions. [2024-11-28 04:53:46,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:53:46,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:46,897 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] [2024-11-28 04:53:46,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:53:46,897 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:46,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:46,898 INFO L85 PathProgramCache]: Analyzing trace with hash 91465175, now seen corresponding path program 1 times [2024-11-28 04:53:46,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:46,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111664874] [2024-11-28 04:53:46,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:46,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:47,085 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:47,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111664874] [2024-11-28 04:53:47,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111664874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:47,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177308336] [2024-11-28 04:53:47,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:47,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:47,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:47,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:47,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:53:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:47,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:53:47,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:47,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:47,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177308336] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:47,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:47,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-28 04:53:47,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640175180] [2024-11-28 04:53:47,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:47,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:53:47,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:47,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:53:47,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:53:47,623 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) [2024-11-28 04:53:47,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:47,742 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2024-11-28 04:53:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:53:47,743 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 [2024-11-28 04:53:47,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:47,745 INFO L225 Difference]: With dead ends: 346 [2024-11-28 04:53:47,746 INFO L226 Difference]: Without dead ends: 319 [2024-11-28 04:53:47,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:53:47,747 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-28 04:53:47,748 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] [2024-11-28 04:53:47,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-28 04:53:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 271. [2024-11-28 04:53:47,781 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) [2024-11-28 04:53:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2024-11-28 04:53:47,784 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 45 [2024-11-28 04:53:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:47,785 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2024-11-28 04:53:47,785 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) [2024-11-28 04:53:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2024-11-28 04:53:47,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:53:47,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:47,787 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] [2024-11-28 04:53:47,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:47,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:53:47,988 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:47,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1373606826, now seen corresponding path program 1 times [2024-11-28 04:53:47,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:47,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148226226] [2024-11-28 04:53:47,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:47,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 04:53:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148226226] [2024-11-28 04:53:48,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148226226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945305532] [2024-11-28 04:53:48,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:48,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:48,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:48,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:48,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:53:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:48,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:53:48,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 04:53:48,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:53:49,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945305532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:49,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:49,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 17] total 19 [2024-11-28 04:53:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305736072] [2024-11-28 04:53:49,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:49,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:53:49,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:49,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:53:49,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:53:49,800 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) [2024-11-28 04:53:50,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:50,070 INFO L93 Difference]: Finished difference Result 459 states and 496 transitions. [2024-11-28 04:53:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:53:50,071 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 [2024-11-28 04:53:50,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:50,072 INFO L225 Difference]: With dead ends: 459 [2024-11-28 04:53:50,072 INFO L226 Difference]: Without dead ends: 271 [2024-11-28 04:53:50,074 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 [2024-11-28 04:53:50,075 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 [2024-11-28 04:53:50,075 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] [2024-11-28 04:53:50,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-28 04:53:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-28 04:53:50,095 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) [2024-11-28 04:53:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 289 transitions. [2024-11-28 04:53:50,098 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 289 transitions. Word has length 60 [2024-11-28 04:53:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:50,098 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 289 transitions. [2024-11-28 04:53:50,098 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) [2024-11-28 04:53:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 289 transitions. [2024-11-28 04:53:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:53:50,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:50,100 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2024-11-28 04:53:50,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:53:50,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:53:50,302 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:50,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:50,303 INFO L85 PathProgramCache]: Analyzing trace with hash -944165366, now seen corresponding path program 2 times [2024-11-28 04:53:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296287136] [2024-11-28 04:53:50,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:50,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:50,326 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:50,326 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:51,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:51,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296287136] [2024-11-28 04:53:51,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296287136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:51,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118916498] [2024-11-28 04:53:51,012 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:51,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:51,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:51,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:51,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:53:51,113 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:51,113 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:51,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 04:53:51,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:51,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:52,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118916498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:52,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:52,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2024-11-28 04:53:52,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465333846] [2024-11-28 04:53:52,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:52,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-28 04:53:52,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:52,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-28 04:53:52,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:53:52,131 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) [2024-11-28 04:53:53,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:53,497 INFO L93 Difference]: Finished difference Result 591 states and 615 transitions. [2024-11-28 04:53:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-28 04:53:53,498 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 [2024-11-28 04:53:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:53,501 INFO L225 Difference]: With dead ends: 591 [2024-11-28 04:53:53,501 INFO L226 Difference]: Without dead ends: 589 [2024-11-28 04:53:53,507 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 [2024-11-28 04:53:53,509 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 873 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2024-11-28 04:53:53,509 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] [2024-11-28 04:53:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-28 04:53:53,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 564. [2024-11-28 04:53:53,564 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) [2024-11-28 04:53:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 602 transitions. [2024-11-28 04:53:53,569 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 602 transitions. Word has length 66 [2024-11-28 04:53:53,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:53,569 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 602 transitions. [2024-11-28 04:53:53,570 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) [2024-11-28 04:53:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 602 transitions. [2024-11-28 04:53:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:53:53,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:53,571 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] [2024-11-28 04:53:53,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:53:53,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:53:53,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:53,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1023813575, now seen corresponding path program 1 times [2024-11-28 04:53:53,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:53,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604176244] [2024-11-28 04:53:53,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:53,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-28 04:53:54,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604176244] [2024-11-28 04:53:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604176244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190182558] [2024-11-28 04:53:54,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:54,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:54,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:54,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:54,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:53:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:54,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:53:54,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:53:54,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:53:56,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190182558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:53:56,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:53:56,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 19] total 38 [2024-11-28 04:53:56,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24097805] [2024-11-28 04:53:56,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:53:56,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 04:53:56,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:53:56,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 04:53:56,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1292, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:53:56,270 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) [2024-11-28 04:53:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:57,016 INFO L93 Difference]: Finished difference Result 590 states and 628 transitions. [2024-11-28 04:53:57,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:53:57,017 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 [2024-11-28 04:53:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:57,019 INFO L225 Difference]: With dead ends: 590 [2024-11-28 04:53:57,019 INFO L226 Difference]: Without dead ends: 140 [2024-11-28 04:53:57,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 109 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=295, Invalid=2255, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 04:53:57,022 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:57,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 212 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:53:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-28 04:53:57,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2024-11-28 04:53:57,033 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) [2024-11-28 04:53:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2024-11-28 04:53:57,034 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 70 [2024-11-28 04:53:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:57,034 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2024-11-28 04:53:57,035 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) [2024-11-28 04:53:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2024-11-28 04:53:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:53:57,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:57,036 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1, 1] [2024-11-28 04:53:57,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:53:57,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:53:57,236 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:53:57,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:57,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1735112018, now seen corresponding path program 2 times [2024-11-28 04:53:57,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:53:57,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031904981] [2024-11-28 04:53:57,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:57,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:57,275 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:57,278 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:59,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:53:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031904981] [2024-11-28 04:53:59,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031904981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106632176] [2024-11-28 04:53:59,107 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:53:59,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:53:59,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:59,111 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:53:59,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:53:59,208 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:53:59,208 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:53:59,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-28 04:53:59,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:53:59,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:01,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106632176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:01,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:01,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2024-11-28 04:54:01,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826666078] [2024-11-28 04:54:01,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:01,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2024-11-28 04:54:01,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:01,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2024-11-28 04:54:01,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1514, Invalid=10042, Unknown=0, NotChecked=0, Total=11556 [2024-11-28 04:54:01,849 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) [2024-11-28 04:54:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:04,707 INFO L93 Difference]: Finished difference Result 277 states and 302 transitions. [2024-11-28 04:54:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-28 04:54:04,707 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 [2024-11-28 04:54:04,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:04,709 INFO L225 Difference]: With dead ends: 277 [2024-11-28 04:54:04,710 INFO L226 Difference]: Without dead ends: 275 [2024-11-28 04:54:04,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7600 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3672, Invalid=21768, Unknown=0, NotChecked=0, Total=25440 [2024-11-28 04:54:04,716 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 [2024-11-28 04:54:04,717 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] [2024-11-28 04:54:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-28 04:54:04,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2024-11-28 04:54:04,759 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) [2024-11-28 04:54:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 273 transitions. [2024-11-28 04:54:04,761 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 273 transitions. Word has length 131 [2024-11-28 04:54:04,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:04,761 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 273 transitions. [2024-11-28 04:54:04,762 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) [2024-11-28 04:54:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 273 transitions. [2024-11-28 04:54:04,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-28 04:54:04,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:04,768 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1] [2024-11-28 04:54:04,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:54:04,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:54:04,969 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:54:04,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:04,970 INFO L85 PathProgramCache]: Analyzing trace with hash -941956646, now seen corresponding path program 3 times [2024-11-28 04:54:04,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:04,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799472462] [2024-11-28 04:54:04,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:04,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:05,058 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-28 04:54:05,058 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:12,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:12,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:12,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799472462] [2024-11-28 04:54:12,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799472462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:12,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413070347] [2024-11-28 04:54:12,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:12,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:12,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:12,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:12,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:54:12,222 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-28 04:54:12,222 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:12,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-11-28 04:54:12,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:12,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:12,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:21,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:54:21,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413070347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:21,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:21,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108, 108] total 215 [2024-11-28 04:54:21,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185364861] [2024-11-28 04:54:21,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:21,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2024-11-28 04:54:21,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:21,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2024-11-28 04:54:21,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5944, Invalid=40496, Unknown=0, NotChecked=0, Total=46440 [2024-11-28 04:54:21,509 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) [2024-11-28 04:54:30,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:30,747 INFO L93 Difference]: Finished difference Result 542 states and 593 transitions. [2024-11-28 04:54:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2024-11-28 04:54:30,747 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 [2024-11-28 04:54:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:30,750 INFO L225 Difference]: With dead ends: 542 [2024-11-28 04:54:30,750 INFO L226 Difference]: Without dead ends: 540 [2024-11-28 04:54:30,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32497 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=14530, Invalid=88190, Unknown=0, NotChecked=0, Total=102720 [2024-11-28 04:54:30,757 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 [2024-11-28 04:54:30,758 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] [2024-11-28 04:54:30,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-28 04:54:30,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2024-11-28 04:54:30,795 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) [2024-11-28 04:54:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2024-11-28 04:54:30,799 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 266 [2024-11-28 04:54:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:30,799 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2024-11-28 04:54:30,800 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) [2024-11-28 04:54:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2024-11-28 04:54:30,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-28 04:54:30,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:30,812 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 1, 1, 1, 1] [2024-11-28 04:54:30,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:54:31,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:54:31,013 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-28 04:54:31,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash -640380494, now seen corresponding path program 3 times [2024-11-28 04:54:31,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:31,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6230379] [2024-11-28 04:54:31,014 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:31,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:31,066 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-28 04:54:31,066 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 6881 proven. 768 refuted. 0 times theorem prover too weak. 6027 trivial. 0 not checked. [2024-11-28 04:54:31,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:31,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6230379] [2024-11-28 04:54:31,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6230379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:31,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182770781] [2024-11-28 04:54:31,588 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:54:31,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:31,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:31,591 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:54:31,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:54:31,837 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-28 04:54:31,838 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:54:31,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 04:54:31,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:54:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2024-11-28 04:54:31,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2024-11-28 04:54:32,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182770781] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:54:32,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:54:32,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 15 [2024-11-28 04:54:32,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206210504] [2024-11-28 04:54:32,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:32,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:54:32,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:32,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:54:32,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:54:32,010 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) [2024-11-28 04:54:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:32,088 INFO L93 Difference]: Finished difference Result 538 states and 538 transitions. [2024-11-28 04:54:32,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:54:32,089 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 [2024-11-28 04:54:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:32,090 INFO L225 Difference]: With dead ends: 538 [2024-11-28 04:54:32,090 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:54:32,091 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 [2024-11-28 04:54:32,092 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 [2024-11-28 04:54:32,092 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] [2024-11-28 04:54:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:54:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:54:32,093 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) [2024-11-28 04:54:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:54:32,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2024-11-28 04:54:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:32,094 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:54:32,094 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) [2024-11-28 04:54:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:54:32,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:54:32,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-28 04:54:32,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-28 04:54:32,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:54:32,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:54:32,303 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:32,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:54:33,304 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:54:33,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:54:33 BoogieIcfgContainer [2024-11-28 04:54:33,312 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:54:33,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:54:33,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:54:33,313 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:54:33,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:40" (3/4) ... [2024-11-28 04:54:33,317 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:54:33,323 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2024-11-28 04:54:33,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-28 04:54:33,330 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 04:54:33,330 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:54:33,331 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:54:33,331 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:54:33,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:54:33,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:54:33,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:54:33,432 INFO L158 Benchmark]: Toolchain (without parser) took 53197.53ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 106.9MB in the beginning and 417.3MB in the end (delta: -310.4MB). Peak memory consumption was 257.7MB. Max. memory is 16.1GB. [2024-11-28 04:54:33,432 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:33,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.04ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.3MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:54:33,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.06ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:33,434 INFO L158 Benchmark]: Boogie Preprocessor took 30.26ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:33,434 INFO L158 Benchmark]: RCFGBuilder took 383.80ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 83.4MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:54:33,435 INFO L158 Benchmark]: TraceAbstraction took 52345.29ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 82.7MB in the beginning and 421.7MB in the end (delta: -339.1MB). Peak memory consumption was 393.4MB. Max. memory is 16.1GB. [2024-11-28 04:54:33,435 INFO L158 Benchmark]: Witness Printer took 117.83ms. Allocated memory is still 713.0MB. Free memory was 421.7MB in the beginning and 417.3MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:33,441 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.04ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.3MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.06ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 95.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.26ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 383.80ms. Allocated memory is still 142.6MB. Free memory was 94.2MB in the beginning and 83.4MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 52345.29ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 82.7MB in the beginning and 421.7MB in the end (delta: -339.1MB). Peak memory consumption was 393.4MB. Max. memory is 16.1GB. * Witness Printer took 117.83ms. Allocated memory is still 713.0MB. Free memory was 421.7MB in the beginning and 417.3MB in the end (delta: 4.4MB). 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: 51.2s, OverallIterations: 19, TraceHistogramMax: 53, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3861 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3857 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 3.0s 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, 30.2s 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: 0.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 150 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 30.3s 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! [2024-11-28 04:54:33,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f456e8f-2810-4871-9689-8987a59c2517/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE