./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_unwindbound10.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_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1 --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 b401bdc3dc8602ce89fd6154d5bf5d175e6ca9a4768bf94d86273beff32d278f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:29:42,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:29:42,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 08:29:42,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:29:42,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:29:42,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:29:42,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:29:42,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:29:42,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:29:42,754 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:29:42,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:29:42,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:29:42,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:29:42,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:29:42,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:29:42,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:29:42,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:29:42,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:29:42,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:29:42,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:29:42,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:29:42,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:29:42,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:29:42,758 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_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1 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 -> b401bdc3dc8602ce89fd6154d5bf5d175e6ca9a4768bf94d86273beff32d278f [2024-12-02 08:29:42,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:29:43,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:29:43,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:29:43,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:29:43,012 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:29:43,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_unwindbound10.c [2024-12-02 08:29:45,710 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/data/a1bd9966b/acc855e2d54642ad89230490a8ce2527/FLAG445fba330 [2024-12-02 08:29:45,894 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:29:45,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_unwindbound10.c [2024-12-02 08:29:45,901 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/data/a1bd9966b/acc855e2d54642ad89230490a8ce2527/FLAG445fba330 [2024-12-02 08:29:46,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/data/a1bd9966b/acc855e2d54642ad89230490a8ce2527 [2024-12-02 08:29:46,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:29:46,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:29:46,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:29:46,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:29:46,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:29:46,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e0510b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46, skipping insertion in model container [2024-12-02 08:29:46,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:29:46,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:29:46,432 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:29:46,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:29:46,464 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:29:46,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46 WrapperNode [2024-12-02 08:29:46,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:29:46,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:29:46,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:29:46,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:29:46,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,499 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-12-02 08:29:46,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:29:46,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:29:46,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:29:46,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:29:46,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,512 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,524 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]. [2024-12-02 08:29:46,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,528 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:29:46,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:29:46,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:29:46,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:29:46,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (1/1) ... [2024-12-02 08:29:46,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:29:46,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:46,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:29:46,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:29:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:29:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:29:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:29:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:29:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 08:29:46,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 08:29:46,668 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:29:46,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:29:46,961 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-12-02 08:29:46,961 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:29:46,974 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:29:46,975 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:29:46,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:46 BoogieIcfgContainer [2024-12-02 08:29:46,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:29:46,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:29:46,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:29:46,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:29:46,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:29:46" (1/3) ... [2024-12-02 08:29:46,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42974fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:46, skipping insertion in model container [2024-12-02 08:29:46,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:46" (2/3) ... [2024-12-02 08:29:46,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42974fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:46, skipping insertion in model container [2024-12-02 08:29:46,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:46" (3/3) ... [2024-12-02 08:29:46,986 INFO L128 eAbstractionObserver]: Analyzing ICFG geo2-ll2_unwindbound10.c [2024-12-02 08:29:47,002 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:29:47,004 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo2-ll2_unwindbound10.c that has 2 procedures, 77 locations, 1 initial locations, 1 loop locations, and 30 error locations. [2024-12-02 08:29:47,061 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:29:47,072 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;@12d8c1bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:29:47,072 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-12-02 08:29:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 73 states have internal predecessors, (77), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:47,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-02 08:29:47,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:47,082 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-12-02 08:29:47,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:47,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-12-02 08:29:47,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:47,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993892538] [2024-12-02 08:29:47,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:47,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:47,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:47,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:47,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993892538] [2024-12-02 08:29:47,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993892538] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:47,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:47,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:47,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106803962] [2024-12-02 08:29:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:47,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:29:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:47,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:29:47,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:29:47,292 INFO L87 Difference]: Start difference. First operand has 77 states, 43 states have (on average 1.7906976744186047) internal successors, (77), 73 states have internal predecessors, (77), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-12-02 08:29:47,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:47,363 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2024-12-02 08:29:47,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:29:47,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2024-12-02 08:29:47,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:47,372 INFO L225 Difference]: With dead ends: 150 [2024-12-02 08:29:47,372 INFO L226 Difference]: Without dead ends: 69 [2024-12-02 08:29:47,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:29:47,378 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 76 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:47,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:29:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-12-02 08:29:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-12-02 08:29:47,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 38 states have (on average 1.7894736842105263) internal successors, (68), 66 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:29:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2024-12-02 08:29:47,420 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 4 [2024-12-02 08:29:47,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:47,420 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2024-12-02 08:29:47,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-12-02 08:29:47,420 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2024-12-02 08:29:47,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-02 08:29:47,421 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:47,421 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 08:29:47,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:29:47,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:47,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:47,422 INFO L85 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2024-12-02 08:29:47,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:47,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116291172] [2024-12-02 08:29:47,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:47,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:47,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116291172] [2024-12-02 08:29:47,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116291172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:47,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:47,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:47,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916368043] [2024-12-02 08:29:47,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:47,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:29:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:47,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:29:47,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:29:47,480 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-12-02 08:29:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:47,519 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2024-12-02 08:29:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:29:47,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2024-12-02 08:29:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:47,521 INFO L225 Difference]: With dead ends: 94 [2024-12-02 08:29:47,521 INFO L226 Difference]: Without dead ends: 73 [2024-12-02 08:29:47,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:29:47,522 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 3 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:47,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 194 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:29:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-12-02 08:29:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-12-02 08:29:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 70 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:29:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2024-12-02 08:29:47,530 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 5 [2024-12-02 08:29:47,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:47,530 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2024-12-02 08:29:47,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-12-02 08:29:47,530 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2024-12-02 08:29:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 08:29:47,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:47,531 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:47,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:29:47,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:47,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1805858121, now seen corresponding path program 1 times [2024-12-02 08:29:47,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:47,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282388516] [2024-12-02 08:29:47,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:47,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:47,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402451130] [2024-12-02 08:29:47,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:47,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:47,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:47,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:47,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:29:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:47,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:29:47,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:47,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:47,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:29:47,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:47,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282388516] [2024-12-02 08:29:47,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:47,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402451130] [2024-12-02 08:29:47,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402451130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:47,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:47,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603644387] [2024-12-02 08:29:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:47,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:29:47,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:47,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:29:47,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:47,667 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-12-02 08:29:47,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:47,843 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2024-12-02 08:29:47,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:29:47,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2024-12-02 08:29:47,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:47,845 INFO L225 Difference]: With dead ends: 111 [2024-12-02 08:29:47,845 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 08:29:47,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:47,846 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:47,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 49 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:29:47,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 08:29:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2024-12-02 08:29:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.6825396825396826) internal successors, (106), 91 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:47,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2024-12-02 08:29:47,854 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 7 [2024-12-02 08:29:47,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:47,855 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2024-12-02 08:29:47,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-12-02 08:29:47,855 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2024-12-02 08:29:47,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 08:29:47,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:47,855 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:47,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:29:48,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:48,056 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:48,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash 147026953, now seen corresponding path program 1 times [2024-12-02 08:29:48,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:48,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218806222] [2024-12-02 08:29:48,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:48,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:48,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8463019] [2024-12-02 08:29:48,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:48,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:48,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:48,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:48,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:29:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:48,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:29:48,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:48,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:29:48,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:48,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218806222] [2024-12-02 08:29:48,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:48,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8463019] [2024-12-02 08:29:48,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8463019] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:48,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:48,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:48,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188426281] [2024-12-02 08:29:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:48,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:29:48,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:48,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:29:48,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:48,148 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 08:29:48,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:48,338 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2024-12-02 08:29:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:29:48,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2024-12-02 08:29:48,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:48,340 INFO L225 Difference]: With dead ends: 111 [2024-12-02 08:29:48,340 INFO L226 Difference]: Without dead ends: 103 [2024-12-02 08:29:48,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:48,341 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 27 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:48,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 57 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:29:48,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-12-02 08:29:48,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2024-12-02 08:29:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 93 states have internal predecessors, (102), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:48,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2024-12-02 08:29:48,350 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 8 [2024-12-02 08:29:48,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:48,350 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2024-12-02 08:29:48,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-12-02 08:29:48,350 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2024-12-02 08:29:48,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 08:29:48,351 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:48,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:48,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 08:29:48,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:48,551 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:48,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash -40446641, now seen corresponding path program 1 times [2024-12-02 08:29:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:48,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177452910] [2024-12-02 08:29:48,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:48,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:48,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451145725] [2024-12-02 08:29:48,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:48,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:48,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:48,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:48,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:29:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:48,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:29:48,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:48,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:29:48,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177452910] [2024-12-02 08:29:48,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451145725] [2024-12-02 08:29:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451145725] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:48,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:48,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:48,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984856522] [2024-12-02 08:29:48,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:48,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:29:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:48,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:29:48,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:48,673 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-12-02 08:29:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:48,853 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2024-12-02 08:29:48,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:29:48,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2024-12-02 08:29:48,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:48,855 INFO L225 Difference]: With dead ends: 108 [2024-12-02 08:29:48,855 INFO L226 Difference]: Without dead ends: 105 [2024-12-02 08:29:48,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:48,856 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:48,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 56 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:29:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-12-02 08:29:48,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2024-12-02 08:29:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 67 states have (on average 1.537313432835821) internal successors, (103), 95 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2024-12-02 08:29:48,864 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 13 [2024-12-02 08:29:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:48,864 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2024-12-02 08:29:48,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-12-02 08:29:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2024-12-02 08:29:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-02 08:29:48,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:48,865 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:48,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:29:49,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:49,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:49,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:49,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1253845809, now seen corresponding path program 1 times [2024-12-02 08:29:49,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:49,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384778010] [2024-12-02 08:29:49,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:49,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:49,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699647748] [2024-12-02 08:29:49,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:49,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:49,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:49,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:49,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:29:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:49,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:29:49,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:49,165 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:29:49,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:49,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384778010] [2024-12-02 08:29:49,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:49,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699647748] [2024-12-02 08:29:49,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699647748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:49,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:49,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460327681] [2024-12-02 08:29:49,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:49,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:29:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:49,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:29:49,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:49,167 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 08:29:49,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:49,335 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2024-12-02 08:29:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:29:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2024-12-02 08:29:49,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:49,336 INFO L225 Difference]: With dead ends: 108 [2024-12-02 08:29:49,336 INFO L226 Difference]: Without dead ends: 105 [2024-12-02 08:29:49,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:49,337 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 23 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:49,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 59 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:29:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-12-02 08:29:49,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2024-12-02 08:29:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 69 states have (on average 1.5072463768115942) internal successors, (104), 97 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2024-12-02 08:29:49,345 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 14 [2024-12-02 08:29:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:49,345 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2024-12-02 08:29:49,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 08:29:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2024-12-02 08:29:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 08:29:49,345 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:49,345 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:49,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:29:49,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:49,546 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:49,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:49,546 INFO L85 PathProgramCache]: Analyzing trace with hash -214514351, now seen corresponding path program 1 times [2024-12-02 08:29:49,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:49,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477638532] [2024-12-02 08:29:49,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:49,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:49,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963015508] [2024-12-02 08:29:49,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:49,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:49,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:49,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:49,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:29:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:49,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:29:49,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:49,656 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:29:49,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:49,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477638532] [2024-12-02 08:29:49,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:49,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963015508] [2024-12-02 08:29:49,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963015508] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:49,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388646145] [2024-12-02 08:29:49,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:49,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:29:49,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:49,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:29:49,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:49,658 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 08:29:49,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:49,840 INFO L93 Difference]: Finished difference Result 109 states and 111 transitions. [2024-12-02 08:29:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:29:49,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 15 [2024-12-02 08:29:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:49,841 INFO L225 Difference]: With dead ends: 109 [2024-12-02 08:29:49,841 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 08:29:49,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:49,842 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 20 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:49,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 65 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:29:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 08:29:49,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-12-02 08:29:49,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 89 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:49,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2024-12-02 08:29:49,848 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 15 [2024-12-02 08:29:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:49,848 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2024-12-02 08:29:49,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-12-02 08:29:49,849 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2024-12-02 08:29:49,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 08:29:49,849 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:49,849 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:49,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:29:50,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:50,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:50,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash 791479357, now seen corresponding path program 1 times [2024-12-02 08:29:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61390777] [2024-12-02 08:29:50,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:50,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:50,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:50,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61390777] [2024-12-02 08:29:50,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61390777] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:29:50,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:29:50,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:29:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723095578] [2024-12-02 08:29:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:29:50,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:29:50,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:50,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:29:50,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:29:50,122 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:29:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:50,135 INFO L93 Difference]: Finished difference Result 95 states and 97 transitions. [2024-12-02 08:29:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:29:50,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-12-02 08:29:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:50,137 INFO L225 Difference]: With dead ends: 95 [2024-12-02 08:29:50,137 INFO L226 Difference]: Without dead ends: 93 [2024-12-02 08:29:50,137 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 [2024-12-02 08:29:50,138 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:50,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 130 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:29:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-12-02 08:29:50,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-12-02 08:29:50,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 89 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:50,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2024-12-02 08:29:50,144 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 23 [2024-12-02 08:29:50,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:50,145 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2024-12-02 08:29:50,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:29:50,145 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2024-12-02 08:29:50,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-02 08:29:50,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:50,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:50,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:29:50,146 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:50,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1758033391, now seen corresponding path program 1 times [2024-12-02 08:29:50,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:50,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644760380] [2024-12-02 08:29:50,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:50,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:50,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644760380] [2024-12-02 08:29:50,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644760380] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:50,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50973122] [2024-12-02 08:29:50,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:50,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:50,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:50,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:50,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:29:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:50,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:29:50,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:50,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:50,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50973122] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:29:50,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:29:50,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-12-02 08:29:50,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85791376] [2024-12-02 08:29:50,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:50,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:29:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:50,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:29:50,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:29:50,483 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:29:50,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:50,602 INFO L93 Difference]: Finished difference Result 253 states and 257 transitions. [2024-12-02 08:29:50,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:29:50,602 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-12-02 08:29:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:50,604 INFO L225 Difference]: With dead ends: 253 [2024-12-02 08:29:50,604 INFO L226 Difference]: Without dead ends: 232 [2024-12-02 08:29:50,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:29:50,605 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 122 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:50,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 399 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:29:50,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-12-02 08:29:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 156. [2024-12-02 08:29:50,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.5798319327731092) internal successors, (188), 147 states have internal predecessors, (188), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:29:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 196 transitions. [2024-12-02 08:29:50,616 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 196 transitions. Word has length 33 [2024-12-02 08:29:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:50,616 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 196 transitions. [2024-12-02 08:29:50,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 08:29:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 196 transitions. [2024-12-02 08:29:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 08:29:50,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:50,617 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:50,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:29:50,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:50,818 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:50,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:50,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1547940042, now seen corresponding path program 1 times [2024-12-02 08:29:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:50,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8047834] [2024-12-02 08:29:50,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:50,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771433326] [2024-12-02 08:29:50,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:50,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:50,842 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:50,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:29:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:50,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 08:29:50,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:51,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:51,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:51,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8047834] [2024-12-02 08:29:51,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:51,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771433326] [2024-12-02 08:29:51,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771433326] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:51,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:29:51,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-12-02 08:29:51,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648886606] [2024-12-02 08:29:51,377 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:51,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:29:51,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:51,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:29:51,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:29:51,378 INFO L87 Difference]: Start difference. First operand 156 states and 196 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:29:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:51,808 INFO L93 Difference]: Finished difference Result 176 states and 215 transitions. [2024-12-02 08:29:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:29:51,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-12-02 08:29:51,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:51,810 INFO L225 Difference]: With dead ends: 176 [2024-12-02 08:29:51,811 INFO L226 Difference]: Without dead ends: 168 [2024-12-02 08:29:51,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:29:51,812 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 49 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:51,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 145 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:29:51,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-12-02 08:29:51,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2024-12-02 08:29:51,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 124 states have (on average 1.532258064516129) internal successors, (190), 152 states have internal predecessors, (190), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:29:51,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 198 transitions. [2024-12-02 08:29:51,822 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 198 transitions. Word has length 35 [2024-12-02 08:29:51,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:51,822 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 198 transitions. [2024-12-02 08:29:51,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:29:51,822 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 198 transitions. [2024-12-02 08:29:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 08:29:51,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:51,823 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:51,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:29:52,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 08:29:52,024 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:29:52,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:52,024 INFO L85 PathProgramCache]: Analyzing trace with hash -741500996, now seen corresponding path program 1 times [2024-12-02 08:29:52,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:52,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154993320] [2024-12-02 08:29:52,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:52,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949546323] [2024-12-02 08:29:52,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:52,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:52,039 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:52,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:29:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:52,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:29:52,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:52,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:29:52,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:52,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154993320] [2024-12-02 08:29:52,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:29:52,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949546323] [2024-12-02 08:29:52,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949546323] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:29:52,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:29:52,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-02 08:29:52,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191351025] [2024-12-02 08:29:52,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:52,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:29:52,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:52,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:29:52,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:29:52,819 INFO L87 Difference]: Start difference. First operand 161 states and 198 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:29:56,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:30:00,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:30:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:01,139 INFO L93 Difference]: Finished difference Result 177 states and 211 transitions. [2024-12-02 08:30:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:30:01,139 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2024-12-02 08:30:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:01,140 INFO L225 Difference]: With dead ends: 177 [2024-12-02 08:30:01,140 INFO L226 Difference]: Without dead ends: 169 [2024-12-02 08:30:01,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:30:01,141 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 60 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:01,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 127 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-12-02 08:30:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-12-02 08:30:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 163. [2024-12-02 08:30:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 127 states have (on average 1.4566929133858268) internal successors, (185), 154 states have internal predecessors, (185), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:30:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2024-12-02 08:30:01,147 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 36 [2024-12-02 08:30:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:01,147 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2024-12-02 08:30:01,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:30:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2024-12-02 08:30:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 08:30:01,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:01,148 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:01,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 08:30:01,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 08:30:01,349 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:30:01,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:01,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1943931260, now seen corresponding path program 1 times [2024-12-02 08:30:01,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:01,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445616740] [2024-12-02 08:30:01,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:01,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:30:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730028091] [2024-12-02 08:30:01,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:01,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:01,364 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:01,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 08:30:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:01,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:30:01,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:30:01,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:30:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445616740] [2024-12-02 08:30:01,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:30:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730028091] [2024-12-02 08:30:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730028091] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:30:01,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:30:01,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-12-02 08:30:01,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827651469] [2024-12-02 08:30:01,526 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 08:30:01,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:30:01,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:01,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:30:01,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:01,527 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:30:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:01,775 INFO L93 Difference]: Finished difference Result 172 states and 200 transitions. [2024-12-02 08:30:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:30:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-12-02 08:30:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:01,776 INFO L225 Difference]: With dead ends: 172 [2024-12-02 08:30:01,776 INFO L226 Difference]: Without dead ends: 169 [2024-12-02 08:30:01,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:30:01,777 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 24 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:01,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 107 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:30:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-12-02 08:30:01,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 164. [2024-12-02 08:30:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 128 states have (on average 1.4375) internal successors, (184), 155 states have internal predecessors, (184), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:30:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 192 transitions. [2024-12-02 08:30:01,786 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 192 transitions. Word has length 41 [2024-12-02 08:30:01,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:01,786 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 192 transitions. [2024-12-02 08:30:01,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:30:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 192 transitions. [2024-12-02 08:30:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 08:30:01,787 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:01,787 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:01,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 08:30:01,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:01,987 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:30:01,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:01,988 INFO L85 PathProgramCache]: Analyzing trace with hash 132326978, now seen corresponding path program 1 times [2024-12-02 08:30:01,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:01,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032228362] [2024-12-02 08:30:01,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:01,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:30:01,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555672654] [2024-12-02 08:30:01,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:01,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:02,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:02,002 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:02,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 08:30:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:02,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:30:02,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:30:02,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:30:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:30:02,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:02,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032228362] [2024-12-02 08:30:02,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:30:02,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555672654] [2024-12-02 08:30:02,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555672654] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:30:02,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:30:02,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-02 08:30:02,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137882924] [2024-12-02 08:30:02,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:30:02,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:30:02,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:02,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:30:02,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:30:02,720 INFO L87 Difference]: Start difference. First operand 164 states and 192 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:30:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:03,529 INFO L93 Difference]: Finished difference Result 177 states and 209 transitions. [2024-12-02 08:30:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:30:03,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2024-12-02 08:30:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:03,531 INFO L225 Difference]: With dead ends: 177 [2024-12-02 08:30:03,531 INFO L226 Difference]: Without dead ends: 174 [2024-12-02 08:30:03,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:30:03,532 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:03,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 210 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:30:03,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-12-02 08:30:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 169. [2024-12-02 08:30:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 160 states have internal predecessors, (191), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:30:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 199 transitions. [2024-12-02 08:30:03,537 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 199 transitions. Word has length 42 [2024-12-02 08:30:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:03,537 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 199 transitions. [2024-12-02 08:30:03,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:30:03,538 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 199 transitions. [2024-12-02 08:30:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 08:30:03,538 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:03,538 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:03,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 08:30:03,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:03,739 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:30:03,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:03,739 INFO L85 PathProgramCache]: Analyzing trace with hash -192830914, now seen corresponding path program 1 times [2024-12-02 08:30:03,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479628077] [2024-12-02 08:30:03,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:30:03,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2975167] [2024-12-02 08:30:03,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:03,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:03,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:03,751 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:03,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 08:30:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:03,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 08:30:03,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:30:03,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:30:05,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:05,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479628077] [2024-12-02 08:30:05,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:30:05,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2975167] [2024-12-02 08:30:05,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2975167] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:30:05,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:30:05,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-12-02 08:30:05,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476847306] [2024-12-02 08:30:05,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 08:30:05,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:30:05,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:05,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:30:05,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:30:05,327 INFO L87 Difference]: Start difference. First operand 169 states and 199 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:30:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:05,529 INFO L93 Difference]: Finished difference Result 178 states and 203 transitions. [2024-12-02 08:30:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:05,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-12-02 08:30:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:05,530 INFO L225 Difference]: With dead ends: 178 [2024-12-02 08:30:05,530 INFO L226 Difference]: Without dead ends: 164 [2024-12-02 08:30:05,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:30:05,530 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 20 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:05,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 113 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:30:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-12-02 08:30:05,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2024-12-02 08:30:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 127 states have (on average 1.4251968503937007) internal successors, (181), 153 states have internal predecessors, (181), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:30:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 189 transitions. [2024-12-02 08:30:05,538 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 189 transitions. Word has length 43 [2024-12-02 08:30:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:05,538 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 189 transitions. [2024-12-02 08:30:05,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 08:30:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 189 transitions. [2024-12-02 08:30:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 08:30:05,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:05,539 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:05,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 08:30:05,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 08:30:05,739 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:30:05,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:05,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1496753194, now seen corresponding path program 1 times [2024-12-02 08:30:05,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:05,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455159613] [2024-12-02 08:30:05,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:05,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:30:05,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:05,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455159613] [2024-12-02 08:30:05,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455159613] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:30:05,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687092264] [2024-12-02 08:30:05,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:05,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:05,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:05,816 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:05,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 08:30:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:05,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:30:05,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:05,922 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:30:05,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:05,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687092264] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:05,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:30:05,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 08:30:05,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995616511] [2024-12-02 08:30:05,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:05,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:30:05,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:05,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:30:05,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:05,924 INFO L87 Difference]: Start difference. First operand 162 states and 189 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:30:05,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:05,942 INFO L93 Difference]: Finished difference Result 172 states and 192 transitions. [2024-12-02 08:30:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:30:05,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-12-02 08:30:05,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:05,944 INFO L225 Difference]: With dead ends: 172 [2024-12-02 08:30:05,944 INFO L226 Difference]: Without dead ends: 171 [2024-12-02 08:30:05,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:05,945 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 71 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:05,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 115 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:05,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-12-02 08:30:05,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2024-12-02 08:30:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 152 states have internal predecessors, (178), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 08:30:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 186 transitions. [2024-12-02 08:30:05,951 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 186 transitions. Word has length 51 [2024-12-02 08:30:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:05,951 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 186 transitions. [2024-12-02 08:30:05,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 08:30:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 186 transitions. [2024-12-02 08:30:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 08:30:05,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:05,952 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:05,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 08:30:06,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:06,153 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:30:06,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:06,153 INFO L85 PathProgramCache]: Analyzing trace with hash -845291166, now seen corresponding path program 1 times [2024-12-02 08:30:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65268080] [2024-12-02 08:30:06,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:06,210 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:30:06,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:06,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65268080] [2024-12-02 08:30:06,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65268080] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:30:06,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781065918] [2024-12-02 08:30:06,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:06,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:06,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:06,212 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:06,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 08:30:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:06,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:30:06,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:30:06,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:30:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 08:30:06,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781065918] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:30:06,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:30:06,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 08:30:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473281564] [2024-12-02 08:30:06,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:30:06,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:30:06,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:30:06,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:30:06,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:30:06,376 INFO L87 Difference]: Start difference. First operand 161 states and 186 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 08:30:06,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:06,407 INFO L93 Difference]: Finished difference Result 241 states and 253 transitions. [2024-12-02 08:30:06,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:30:06,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 52 [2024-12-02 08:30:06,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:06,409 INFO L225 Difference]: With dead ends: 241 [2024-12-02 08:30:06,409 INFO L226 Difference]: Without dead ends: 240 [2024-12-02 08:30:06,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:30:06,410 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 100 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:06,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 252 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:06,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-12-02 08:30:06,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 176. [2024-12-02 08:30:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 141 states have (on average 1.4326241134751774) internal successors, (202), 166 states have internal predecessors, (202), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 08:30:06,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 212 transitions. [2024-12-02 08:30:06,418 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 212 transitions. Word has length 52 [2024-12-02 08:30:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:06,418 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 212 transitions. [2024-12-02 08:30:06,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 08:30:06,419 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 212 transitions. [2024-12-02 08:30:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 08:30:06,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:06,419 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-12-02 08:30:06,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 08:30:06,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 08:30:06,620 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-12-02 08:30:06,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash 949777315, now seen corresponding path program 2 times [2024-12-02 08:30:06,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:30:06,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049301242] [2024-12-02 08:30:06,620 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:30:06,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:30:06,636 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:30:06,636 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 08:30:06,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737080993] [2024-12-02 08:30:06,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:30:06,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:06,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:06,639 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:30:06,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 08:30:06,691 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 08:30:06,691 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 08:30:06,691 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:30:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:30:06,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:30:06,731 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:30:06,732 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2024-12-02 08:30:06,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2024-12-02 08:30:06,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2024-12-02 08:30:06,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2024-12-02 08:30:06,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 08:30:06,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:06,939 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:06,964 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:30:06,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:30:06 BoogieIcfgContainer [2024-12-02 08:30:06,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:30:06,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:30:06,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:30:06,968 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:30:06,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:46" (3/4) ... [2024-12-02 08:30:06,969 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 08:30:07,012 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-12-02 08:30:07,069 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 08:30:07,069 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 08:30:07,069 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:30:07,070 INFO L158 Benchmark]: Toolchain (without parser) took 20807.19ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 88.9MB in the end (delta: 4.2MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-12-02 08:30:07,070 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:30:07,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.23ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.1MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:30:07,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.20ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:30:07,071 INFO L158 Benchmark]: Boogie Preprocessor took 35.19ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.6MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:30:07,071 INFO L158 Benchmark]: RCFGBuilder took 439.54ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 65.1MB in the end (delta: 14.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:30:07,071 INFO L158 Benchmark]: TraceAbstraction took 19989.09ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 37.3MB in the end (delta: 27.0MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2024-12-02 08:30:07,071 INFO L158 Benchmark]: Witness Printer took 101.91ms. Allocated memory is still 117.4MB. Free memory was 37.3MB in the beginning and 88.9MB in the end (delta: -51.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-12-02 08:30:07,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.23ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.1MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.20ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.19ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.6MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 439.54ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 65.1MB in the end (delta: 14.3MB). There was no memory consumed. Max. memory is 16.1GB. * TraceAbstraction took 19989.09ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 37.3MB in the end (delta: 27.0MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 101.91ms. Allocated memory is still 117.4MB. Free memory was 37.3MB in the beginning and 88.9MB in the end (delta: -51.6MB). Peak memory consumption was 9.4MB. 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 - CounterExampleResult [Line: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int counter = 0; VAL [counter=0] [L25] int z, k; [L26] long long x, y, c; [L27] z = __VERIFIER_nondet_int() [L28] k = __VERIFIER_nondet_int() [L30] x = 1 [L31] y = 1 [L32] c = 1 VAL [c=1, counter=0, k=3, x=1, y=1, z=-2147483647] [L34] EXPR counter++ VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L34] COND TRUE counter++<10 [L35] EXPR x*z VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L35] EXPR 1 + x*z VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L35] EXPR 1 + x*z - x VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L35] EXPR z*y VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L35] EXPR 1 + x*z - x - z*y VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L35] CALL __VERIFIER_assert(1 + x*z - x - z*y == 0) VAL [counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L35] RET __VERIFIER_assert(1 + x*z - x - z*y == 0) VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L37] COND FALSE !(!(c < k)) VAL [c=1, counter=1, k=3, x=1, y=1, z=-2147483647] [L40] EXPR c + 1 [L40] c = c + 1 VAL [c=2, counter=1, k=3, x=1, y=1, z=-2147483647] [L41] EXPR x * z VAL [c=2, counter=1, k=3, x=1, y=1, z=-2147483647] [L41] EXPR x * z + 1 [L41] x = x * z + 1 VAL [c=2, counter=1, k=3, x=-2147483646, y=1, z=-2147483647] [L42] EXPR y * z [L42] y = y * z VAL [c=2, counter=1, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L34] EXPR counter++ VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L34] COND TRUE counter++<10 [L35] EXPR x*z VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L35] EXPR 1 + x*z VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L35] EXPR 1 + x*z - x VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L35] EXPR z*y VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L35] EXPR 1 + x*z - x - z*y VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L35] CALL __VERIFIER_assert(1 + x*z - x - z*y == 0) VAL [counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L35] RET __VERIFIER_assert(1 + x*z - x - z*y == 0) VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L37] COND FALSE !(!(c < k)) VAL [c=2, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L40] EXPR c + 1 [L40] c = c + 1 VAL [c=3, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L41] EXPR x * z VAL [c=3, counter=2, k=3, x=-2147483646, y=-2147483647, z=-2147483647] [L41] EXPR x * z + 1 [L41] x = x * z + 1 VAL [c=3, counter=2, k=3, x=4611686011984936963, y=-2147483647, z=-2147483647] [L42] EXPR y * z [L42] y = y * z VAL [c=3, counter=2, k=3, x=4611686011984936963, y=4611686014132420609, z=-2147483647] [L34] EXPR counter++ VAL [c=3, counter=3, k=3, x=4611686011984936963, y=4611686014132420609, z=-2147483647] [L34] COND TRUE counter++<10 [L35] x*z VAL [c=3, counter=3, k=3, y=4611686014132420609] - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 77 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 19.9s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 713 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 699 mSDsluCounter, 2218 SdHoareTripleChecker+Invalid, 10.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1400 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2011 IncrementalHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 818 mSDtfsCounter, 2011 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 626 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred in iteration=16, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 201 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 938 NumberOfCodeBlocks, 938 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 698 ConstructedInterpolants, 7 QuantifiedInterpolants, 3914 SizeOfPredicates, 6 NumberOfNonLiveVariables, 942 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 37/182 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 RESULT: Ultimate proved your program to be incorrect! [2024-12-02 08:30:07,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0d96340-420f-4578-b5d8-73b287069db7/bin/uautomizer-verify-84ZbGMXZE1/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)