./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array07_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-15/array07_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 94e9a459f78c3121054dddbd02ed369b162f8ff75bebed614a4cadba488d510f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:48:47,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:48:47,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 01:48:47,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:48:47,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:48:47,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:48:47,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:48:47,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:48:47,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:48:47,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:48:47,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:48:47,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:48:47,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:48:47,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:48:47,349 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:48:47,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:48:47,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:48:47,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:48:47,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:48:47,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:48:47,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:48:47,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:48:47,351 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 01:48:47,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:48:47,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:48:47,352 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:48:47,352 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:48:47,352 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:48:47,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:48:47,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:48:47,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:48:47,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:47,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:48:47,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:48:47,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:48:47,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:48:47,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:47,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:48:47,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:48:47,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:48:47,357 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_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94e9a459f78c3121054dddbd02ed369b162f8ff75bebed614a4cadba488d510f [2024-11-24 01:48:47,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:48:47,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:48:47,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:48:47,813 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:48:47,814 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:48:47,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-15/array07_alloca.i [2024-11-24 01:48:51,588 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/data/b85cd3efd/2c769c4d5b62428da78a9fd9dda34912/FLAGb7381f90c [2024-11-24 01:48:51,945 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:48:51,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/sv-benchmarks/c/termination-15/array07_alloca.i [2024-11-24 01:48:51,960 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/data/b85cd3efd/2c769c4d5b62428da78a9fd9dda34912/FLAGb7381f90c [2024-11-24 01:48:51,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/data/b85cd3efd/2c769c4d5b62428da78a9fd9dda34912 [2024-11-24 01:48:51,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:48:51,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:48:51,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:48:51,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:48:51,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:48:51,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:48:51" (1/1) ... [2024-11-24 01:48:51,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692d0520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:51, skipping insertion in model container [2024-11-24 01:48:51,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:48:51" (1/1) ... [2024-11-24 01:48:52,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:48:52,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:48:52,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:48:52,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:48:52,507 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:48:52,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52 WrapperNode [2024-11-24 01:48:52,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:48:52,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:48:52,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:48:52,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:48:52,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,553 INFO L138 Inliner]: procedures = 151, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-24 01:48:52,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:48:52,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:48:52,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:48:52,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:48:52,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,574 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,591 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-24 01:48:52,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,601 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:48:52,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:48:52,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:48:52,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:48:52,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (1/1) ... [2024-11-24 01:48:52,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:48:52,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:52,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:48:52,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:48:52,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:48:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:48:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:48:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:48:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:48:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:48:52,820 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:48:52,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:48:53,076 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-24 01:48:53,077 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:48:53,092 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:48:53,092 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:48:53,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:53 BoogieIcfgContainer [2024-11-24 01:48:53,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:48:53,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:48:53,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:48:53,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:48:53,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:48:51" (1/3) ... [2024-11-24 01:48:53,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2068b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:48:53, skipping insertion in model container [2024-11-24 01:48:53,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:48:52" (2/3) ... [2024-11-24 01:48:53,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2068b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:48:53, skipping insertion in model container [2024-11-24 01:48:53,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:53" (3/3) ... [2024-11-24 01:48:53,113 INFO L128 eAbstractionObserver]: Analyzing ICFG array07_alloca.i [2024-11-24 01:48:53,143 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:48:53,147 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array07_alloca.i that has 1 procedures, 26 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2024-11-24 01:48:53,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:48:53,266 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;@51de5d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:48:53,266 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-24 01:48:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.631578947368421) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 01:48:53,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:53,280 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:53,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 01:48:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 119447406, now seen corresponding path program 1 times [2024-11-24 01:48:53,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:53,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565495560] [2024-11-24 01:48:53,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:53,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565495560] [2024-11-24 01:48:53,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565495560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:53,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:48:53,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047214140] [2024-11-24 01:48:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:53,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:48:53,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:53,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:48:53,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:48:53,714 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.631578947368421) internal successors, (31), 25 states have internal predecessors, (31), 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) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-24 01:48:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:53,819 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2024-11-24 01:48:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:48:53,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2024-11-24 01:48:53,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:53,831 INFO L225 Difference]: With dead ends: 47 [2024-11-24 01:48:53,831 INFO L226 Difference]: Without dead ends: 26 [2024-11-24 01:48:53,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:48:53,839 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:53,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 65 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:48:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-24 01:48:53,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-24 01:48:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2024-11-24 01:48:53,885 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 8 [2024-11-24 01:48:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:53,886 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2024-11-24 01:48:53,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2024-11-24 01:48:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2024-11-24 01:48:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 01:48:53,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:53,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:53,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:48:53,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 01:48:53,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1173060618, now seen corresponding path program 1 times [2024-11-24 01:48:53,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:53,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760574889] [2024-11-24 01:48:53,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:53,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:54,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:54,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760574889] [2024-11-24 01:48:54,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760574889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:54,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:54,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:48:54,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084891890] [2024-11-24 01:48:54,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:54,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:48:54,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:54,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:48:54,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:48:54,066 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:54,133 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2024-11-24 01:48:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:48:54,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-24 01:48:54,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:54,137 INFO L225 Difference]: With dead ends: 37 [2024-11-24 01:48:54,137 INFO L226 Difference]: Without dead ends: 26 [2024-11-24 01:48:54,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:48:54,139 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:54,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:48:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-24 01:48:54,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-24 01:48:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:54,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-24 01:48:54,151 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 10 [2024-11-24 01:48:54,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:54,151 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-24 01:48:54,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-24 01:48:54,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 01:48:54,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:54,152 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:54,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:48:54,152 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 01:48:54,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:54,153 INFO L85 PathProgramCache]: Analyzing trace with hash 249583720, now seen corresponding path program 1 times [2024-11-24 01:48:54,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:54,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591426445] [2024-11-24 01:48:54,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:54,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:54,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:54,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:54,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591426445] [2024-11-24 01:48:54,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591426445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:48:54,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518932051] [2024-11-24 01:48:54,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:54,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:54,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:54,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:48:54,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:48:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:54,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:48:54,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:48:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:54,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:48:54,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518932051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:54,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:48:54,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2024-11-24 01:48:54,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565697610] [2024-11-24 01:48:54,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:54,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:54,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:54,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:54,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:48:54,653 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:54,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:54,726 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2024-11-24 01:48:54,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:54,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-11-24 01:48:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:54,730 INFO L225 Difference]: With dead ends: 61 [2024-11-24 01:48:54,730 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:48:54,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:48:54,732 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:54,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 59 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:48:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:48:54,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2024-11-24 01:48:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2024-11-24 01:48:54,747 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 12 [2024-11-24 01:48:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:54,748 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2024-11-24 01:48:54,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2024-11-24 01:48:54,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 01:48:54,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:54,749 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:54,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:48:54,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:54,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 01:48:54,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:54,951 INFO L85 PathProgramCache]: Analyzing trace with hash -143443290, now seen corresponding path program 1 times [2024-11-24 01:48:54,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:54,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516900466] [2024-11-24 01:48:54,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:55,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:55,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516900466] [2024-11-24 01:48:55,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516900466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:48:55,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283886321] [2024-11-24 01:48:55,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:55,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:55,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:55,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:48:55,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:48:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:55,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:48:55,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:48:55,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:55,307 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:48:55,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283886321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:55,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:48:55,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-24 01:48:55,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280614024] [2024-11-24 01:48:55,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:55,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:48:55,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:55,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:48:55,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:48:55,309 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:55,374 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2024-11-24 01:48:55,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:48:55,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-11-24 01:48:55,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:55,376 INFO L225 Difference]: With dead ends: 33 [2024-11-24 01:48:55,376 INFO L226 Difference]: Without dead ends: 32 [2024-11-24 01:48:55,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:48:55,378 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:55,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:48:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-24 01:48:55,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-24 01:48:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2024-11-24 01:48:55,388 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 12 [2024-11-24 01:48:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:55,388 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2024-11-24 01:48:55,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:55,389 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2024-11-24 01:48:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 01:48:55,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:55,389 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:55,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:48:55,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:55,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 01:48:55,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash -151774636, now seen corresponding path program 1 times [2024-11-24 01:48:55,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:55,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051844997] [2024-11-24 01:48:55,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:55,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:55,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:55,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051844997] [2024-11-24 01:48:55,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051844997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:48:55,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397136319] [2024-11-24 01:48:55,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:55,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:55,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:48:55,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:48:55,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:48:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:55,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:48:55,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:48:55,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:55,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:48:55,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:48:55,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397136319] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:48:55,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:48:55,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-24 01:48:55,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541436873] [2024-11-24 01:48:55,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:48:55,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:48:55,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:55,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:48:55,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:48:55,992 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:56,091 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-24 01:48:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:48:56,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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 [2024-11-24 01:48:56,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:56,094 INFO L225 Difference]: With dead ends: 45 [2024-11-24 01:48:56,094 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:48:56,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:48:56,101 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:56,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:48:56,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:48:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-24 01:48:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2024-11-24 01:48:56,120 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 13 [2024-11-24 01:48:56,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:56,121 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2024-11-24 01:48:56,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:48:56,121 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2024-11-24 01:48:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 01:48:56,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:56,122 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:56,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:48:56,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:48:56,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-24 01:48:56,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:56,323 INFO L85 PathProgramCache]: Analyzing trace with hash -666114448, now seen corresponding path program 1 times [2024-11-24 01:48:56,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:56,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907885739] [2024-11-24 01:48:56,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:56,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:48:56,359 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:48:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:48:56,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:48:56,396 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:48:56,399 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-24 01:48:56,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-24 01:48:56,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-24 01:48:56,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-24 01:48:56,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-24 01:48:56,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-24 01:48:56,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:48:56,408 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 01:48:56,441 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:48:56,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:48:56 BoogieIcfgContainer [2024-11-24 01:48:56,447 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:48:56,449 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:48:56,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:48:56,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:48:56,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:48:53" (3/4) ... [2024-11-24 01:48:56,452 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 01:48:56,515 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-11-24 01:48:56,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:48:56,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c3d5d9-3bd2-4bf9-afcf-81f1129abb71/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:48:56,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:48:56,590 INFO L158 Benchmark]: Toolchain (without parser) took 4605.27ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 91.2MB in the beginning and 137.3MB in the end (delta: -46.1MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-11-24 01:48:56,591 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:48:56,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.38ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 73.1MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:48:56,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.52ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:48:56,593 INFO L158 Benchmark]: Boogie Preprocessor took 56.83ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:48:56,593 INFO L158 Benchmark]: RCFGBuilder took 481.25ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 59.9MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:48:56,594 INFO L158 Benchmark]: TraceAbstraction took 3350.82ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 59.3MB in the beginning and 141.7MB in the end (delta: -82.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:48:56,595 INFO L158 Benchmark]: Witness Printer took 138.05ms. Allocated memory is still 192.9MB. Free memory was 141.7MB in the beginning and 137.3MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:48:56,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 117.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.38ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 73.1MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.52ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.83ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 481.25ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 59.9MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3350.82ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 59.3MB in the beginning and 141.7MB in the end (delta: -82.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 138.05ms. Allocated memory is still 192.9MB. Free memory was 141.7MB in the beginning and 137.3MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. 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: 375]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND TRUE length < 1 [L367] length = 1 VAL [length=1] [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=1] [L370] COND TRUE i