./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/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_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/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 64bit --witnessprinter.graph.data.programhash 23dd20104e52996ac875d0559143ce4f366abd3f5073fa9f75cda1ab0a7a927f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:28:55,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:28:55,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 12:28:55,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:28:55,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:28:55,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:28:55,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:28:55,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:28:55,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:28:55,126 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:28:55,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:28:55,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:28:55,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:28:55,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:28:55,127 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:28:55,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:28:55,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:28:55,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:28:55,128 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:28:55,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:28:55,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:28:55,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:28:55,129 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:28:55,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:28:55,130 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_e73336f7-5eb5-4458-88bb-ae3542b80b0b/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23dd20104e52996ac875d0559143ce4f366abd3f5073fa9f75cda1ab0a7a927f [2024-12-02 12:28:55,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:28:55,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:28:55,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:28:55,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:28:55,374 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:28:55,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i [2024-12-02 12:28:57,965 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/data/79f2831b7/85f458c921b64157b2bdadc8f9126e18/FLAG675d20f97 [2024-12-02 12:28:58,204 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:28:58,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca-2.i [2024-12-02 12:28:58,217 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/data/79f2831b7/85f458c921b64157b2bdadc8f9126e18/FLAG675d20f97 [2024-12-02 12:28:58,545 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/data/79f2831b7/85f458c921b64157b2bdadc8f9126e18 [2024-12-02 12:28:58,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:28:58,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:28:58,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:28:58,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:28:58,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:28:58,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d14fa7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58, skipping insertion in model container [2024-12-02 12:28:58,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,569 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:28:58,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:28:58,753 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:28:58,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:28:58,804 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:28:58,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58 WrapperNode [2024-12-02 12:28:58,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:28:58,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:28:58,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:28:58,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:28:58,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,838 INFO L138 Inliner]: procedures = 110, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2024-12-02 12:28:58,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:28:58,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:28:58,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:28:58,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:28:58,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,861 INFO L175 MemorySlicer]: Split 19 memory accesses to 7 slices as follows [5, 1, 2, 2, 3, 5, 1]. 26 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0, 0, 0, 0, 0]. The 10 writes are split as follows [2, 1, 1, 1, 2, 2, 1]. [2024-12-02 12:28:58,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,865 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:28:58,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:28:58,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:28:58,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:28:58,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (1/1) ... [2024-12-02 12:28:58,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:28:58,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:28:58,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:28:58,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:28:58,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:28:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:28:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:28:59,008 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:28:59,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:28:59,142 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-02 12:28:59,142 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:28:59,151 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:28:59,151 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 12:28:59,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:28:59 BoogieIcfgContainer [2024-12-02 12:28:59,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:28:59,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:28:59,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:28:59,158 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:28:59,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:28:58" (1/3) ... [2024-12-02 12:28:59,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2d8e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:28:59, skipping insertion in model container [2024-12-02 12:28:59,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:28:58" (2/3) ... [2024-12-02 12:28:59,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2d8e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:28:59, skipping insertion in model container [2024-12-02 12:28:59,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:28:59" (3/3) ... [2024-12-02 12:28:59,160 INFO L128 eAbstractionObserver]: Analyzing ICFG NoriSharma-2013FSE-Fig7-alloca-2.i [2024-12-02 12:28:59,174 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:28:59,176 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG NoriSharma-2013FSE-Fig7-alloca-2.i that has 1 procedures, 22 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-12-02 12:28:59,222 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:28:59,233 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;@75d5b493, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:28:59,234 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-02 12:28:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.6) internal successors, (24), 21 states have internal predecessors, (24), 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 12:28:59,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 12:28:59,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:28:59,242 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:59,243 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)] === [2024-12-02 12:28:59,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:59,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1805892906, now seen corresponding path program 1 times [2024-12-02 12:28:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:59,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748241379] [2024-12-02 12:28:59,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:28:59,629 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 12:28:59,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:28:59,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748241379] [2024-12-02 12:28:59,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748241379] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:28:59,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:28:59,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:28:59,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796658928] [2024-12-02 12:28:59,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:28:59,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:28:59,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:28:59,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:28:59,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:28:59,655 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.6) internal successors, (24), 21 states have internal predecessors, (24), 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 2.3333333333333335) internal successors, (7), 4 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 12:28:59,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:28:59,706 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2024-12-02 12:28:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:28:59,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 12:28:59,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:28:59,715 INFO L225 Difference]: With dead ends: 26 [2024-12-02 12:28:59,715 INFO L226 Difference]: Without dead ends: 17 [2024-12-02 12:28:59,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:28:59,720 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 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 12:28:59,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:28:59,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-12-02 12:28:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-12-02 12:28:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 16 states have internal predecessors, (18), 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 12:28:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-12-02 12:28:59,750 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2024-12-02 12:28:59,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:28:59,750 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-12-02 12:28:59,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 12:28:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-12-02 12:28:59,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 12:28:59,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:28:59,751 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:28:59,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:28:59,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 12:28:59,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:28:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash 148105291, now seen corresponding path program 1 times [2024-12-02 12:28:59,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:28:59,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284591667] [2024-12-02 12:28:59,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:28:59,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:28:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:00,016 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 12:29:00,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:00,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284591667] [2024-12-02 12:29:00,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284591667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:00,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:00,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:00,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081413369] [2024-12-02 12:29:00,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:00,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:29:00,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:00,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:29:00,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:29:00,018 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 12:29:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:00,098 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-12-02 12:29:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:29:00,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 12:29:00,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:00,100 INFO L225 Difference]: With dead ends: 22 [2024-12-02 12:29:00,100 INFO L226 Difference]: Without dead ends: 21 [2024-12-02 12:29:00,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:29:00,101 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:00,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 46 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:00,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-12-02 12:29:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-12-02 12:29:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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 12:29:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-12-02 12:29:00,105 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 8 [2024-12-02 12:29:00,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:00,105 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-12-02 12:29:00,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 12:29:00,105 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-12-02 12:29:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 12:29:00,106 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:00,106 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:00,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:29:00,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-12-02 12:29:00,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash 149952333, now seen corresponding path program 1 times [2024-12-02 12:29:00,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:00,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930834763] [2024-12-02 12:29:00,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:00,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:29:00,143 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 12:29:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 12:29:00,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 12:29:00,168 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 12:29:00,169 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-12-02 12:29:00,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-12-02 12:29:00,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-12-02 12:29:00,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-12-02 12:29:00,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-12-02 12:29:00,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-12-02 12:29:00,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:29:00,174 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 12:29:00,193 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:29:00,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:29:00 BoogieIcfgContainer [2024-12-02 12:29:00,196 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:29:00,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:29:00,197 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:29:00,197 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:29:00,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:28:59" (3/4) ... [2024-12-02 12:29:00,198 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 12:29:00,226 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 2. [2024-12-02 12:29:00,253 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:29:00,254 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:29:00,254 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:29:00,254 INFO L158 Benchmark]: Toolchain (without parser) took 1706.25ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 103.4MB in the end (delta: 13.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-12-02 12:29:00,254 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:29:00,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.71ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 100.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:29:00,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.55ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:29:00,255 INFO L158 Benchmark]: Boogie Preprocessor took 32.27ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:29:00,255 INFO L158 Benchmark]: RCFGBuilder took 279.85ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 82.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:29:00,256 INFO L158 Benchmark]: TraceAbstraction took 1042.51ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 107.8MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:29:00,256 INFO L158 Benchmark]: Witness Printer took 57.20ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 103.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:29:00,257 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.71ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 100.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.55ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.27ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.85ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 82.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1042.51ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 107.8MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.20ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 103.4MB 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: 563]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* a = __builtin_alloca (sizeof(int)); [L549] int* i = __builtin_alloca (sizeof(int)); [L550] int* b = __builtin_alloca (sizeof(int)); [L551] int* j = __builtin_alloca (sizeof(int)); [L552] int* c = __builtin_alloca (sizeof(int)); [L553] int* M = __builtin_alloca (sizeof(int)); [L554] int* N = __builtin_alloca (sizeof(int)); [L555] *i = __VERIFIER_nondet_int() [L556] *j = __VERIFIER_nondet_int() [L557] *M = __VERIFIER_nondet_int() [L558] *N = __VERIFIER_nondet_int() [L559] EXPR \read(*i) [L559] *a = *i [L560] EXPR \read(*j) [L560] *b = *j [L561] *c = 0 [L562] EXPR \read(*i) [L562] EXPR \read(*M) [L562] *i < *M || *j < *N VAL [M={5:0}, N={3:0}, c={6:0}, i={9:0}, j={7:0}] [L562] *i < *M || *j < *N [L562] EXPR \read(*j) [L562] EXPR \read(*N) [L562] *i < *M || *j < *N VAL [M={5:0}, N={3:0}, c={6:0}, i={9:0}, j={7:0}] [L562] COND TRUE *i < *M || *j < *N [L563] EXPR \read(*i) [L563] *i + 1 VAL [M={5:0}, N={3:0}, c={6:0}, i={9:0}, j={7:0}] - UnprovableResult [Line: 563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 565]: 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 1 procedures, 22 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 29 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 12:29:00,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73336f7-5eb5-4458-88bb-ae3542b80b0b/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)