./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/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_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:02:30,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:02:30,669 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 07:02:30,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:02:30,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:02:30,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:02:30,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:02:30,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:02:30,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:02:30,696 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:02:30,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:02:30,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:02:30,696 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:02:30,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:02:30,696 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:02:30,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:02:30,697 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:02:30,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:30,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:02:30,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:30,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:02:30,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:02:30,699 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_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d94197bb45011c55db64c4b2cad037cf69a2430f75ef8668b076bdef6ca69182 [2024-12-02 07:02:30,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:02:30,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:02:30,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:02:30,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:02:30,945 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:02:30,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2024-12-02 07:02:33,564 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/data/78887299d/04a40d551f5f49a8ba45c1ca788b1c2e/FLAGa3e3993d8 [2024-12-02 07:02:33,822 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:02:33,823 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/sv-benchmarks/c/array-memsafety/mult_array_unsafe.i [2024-12-02 07:02:33,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/data/78887299d/04a40d551f5f49a8ba45c1ca788b1c2e/FLAGa3e3993d8 [2024-12-02 07:02:33,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/data/78887299d/04a40d551f5f49a8ba45c1ca788b1c2e [2024-12-02 07:02:33,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:02:33,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:02:33,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:02:33,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:02:33,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:02:33,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:33" (1/1) ... [2024-12-02 07:02:33,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6031e901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:33, skipping insertion in model container [2024-12-02 07:02:33,865 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:33" (1/1) ... [2024-12-02 07:02:33,895 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:02:34,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:02:34,170 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:02:34,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:02:34,237 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:02:34,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34 WrapperNode [2024-12-02 07:02:34,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:02:34,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:02:34,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:02:34,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:02:34,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,276 INFO L138 Inliner]: procedures = 115, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-12-02 07:02:34,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:02:34,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:02:34,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:02:34,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:02:34,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,303 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 2 writes are split as follows [1, 1]. [2024-12-02 07:02:34,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,309 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:02:34,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:02:34,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:02:34,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:02:34,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (1/1) ... [2024-12-02 07:02:34,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:02:34,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:02:34,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:02:34,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:02:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:02:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:02:34,465 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:02:34,466 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:02:34,640 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-02 07:02:34,640 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:02:34,649 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:02:34,649 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:02:34,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:02:34 BoogieIcfgContainer [2024-12-02 07:02:34,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:02:34,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:02:34,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:02:34,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:02:34,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:02:33" (1/3) ... [2024-12-02 07:02:34,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc0ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:02:34, skipping insertion in model container [2024-12-02 07:02:34,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:34" (2/3) ... [2024-12-02 07:02:34,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc0ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:02:34, skipping insertion in model container [2024-12-02 07:02:34,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:02:34" (3/3) ... [2024-12-02 07:02:34,659 INFO L128 eAbstractionObserver]: Analyzing ICFG mult_array_unsafe.i [2024-12-02 07:02:34,671 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:02:34,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mult_array_unsafe.i that has 1 procedures, 27 locations, 1 initial locations, 2 loop locations, and 7 error locations. [2024-12-02 07:02:34,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:02:34,720 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=None, 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;@45ce48b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:02:34,720 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-12-02 07:02:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.736842105263158) internal successors, (33), 26 states have internal predecessors, (33), 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 07:02:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-02 07:02:34,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:02:34,730 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:02:34,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2024-12-02 07:02:34,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:02:34,735 INFO L85 PathProgramCache]: Analyzing trace with hash 119383861, now seen corresponding path program 1 times [2024-12-02 07:02:34,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:02:34,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692817105] [2024-12-02 07:02:34,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:02:34,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:02:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:02:35,070 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 07:02:35,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:02:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692817105] [2024-12-02 07:02:35,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692817105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:02:35,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:02:35,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:02:35,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741910215] [2024-12-02 07:02:35,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:02:35,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:02:35,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:02:35,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:02:35,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:02:35,100 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.736842105263158) internal successors, (33), 26 states have internal predecessors, (33), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:02:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:02:35,142 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2024-12-02 07:02:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:02:35,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-12-02 07:02:35,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:02:35,150 INFO L225 Difference]: With dead ends: 27 [2024-12-02 07:02:35,150 INFO L226 Difference]: Without dead ends: 25 [2024-12-02 07:02:35,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:02:35,155 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:02:35,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:02:35,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-12-02 07:02:35,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-12-02 07:02:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 24 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) [2024-12-02 07:02:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-12-02 07:02:35,179 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 8 [2024-12-02 07:02:35,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:02:35,180 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-12-02 07:02:35,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:02:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-12-02 07:02:35,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 07:02:35,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:02:35,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:02:35,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:02:35,181 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2024-12-02 07:02:35,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:02:35,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1236198669, now seen corresponding path program 1 times [2024-12-02 07:02:35,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:02:35,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566679997] [2024-12-02 07:02:35,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:02:35,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:02:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:02:35,311 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 07:02:35,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:02:35,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566679997] [2024-12-02 07:02:35,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566679997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:02:35,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:02:35,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:02:35,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446611497] [2024-12-02 07:02:35,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:02:35,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:02:35,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:02:35,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:02:35,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:02:35,314 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2024-12-02 07:02:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:02:35,345 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-12-02 07:02:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:02:35,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2024-12-02 07:02:35,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:02:35,347 INFO L225 Difference]: With dead ends: 23 [2024-12-02 07:02:35,347 INFO L226 Difference]: Without dead ends: 23 [2024-12-02 07:02:35,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:02:35,347 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:02:35,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 23 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:02:35,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-02 07:02:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-02 07:02:35,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 22 states have internal predecessors, (26), 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 07:02:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-12-02 07:02:35,351 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2024-12-02 07:02:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:02:35,351 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-12-02 07:02:35,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2024-12-02 07:02:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-12-02 07:02:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-02 07:02:35,352 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:02:35,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:02:35,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:02:35,353 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2024-12-02 07:02:35,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:02:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1236198668, now seen corresponding path program 1 times [2024-12-02 07:02:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:02:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085961120] [2024-12-02 07:02:35,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:02:35,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:02:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 07:02:35,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155066759] [2024-12-02 07:02:35,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:02:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:02:35,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:02:35,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:02:35,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:02:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:02:35,459 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:02:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:02:35,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:02:35,483 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:02:35,484 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 7 remaining) [2024-12-02 07:02:35,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2024-12-02 07:02:35,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2024-12-02 07:02:35,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2024-12-02 07:02:35,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2024-12-02 07:02:35,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2024-12-02 07:02:35,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-12-02 07:02:35,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:02:35,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:02:35,689 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 07:02:35,703 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:02:35,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:02:35 BoogieIcfgContainer [2024-12-02 07:02:35,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:02:35,706 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:02:35,706 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:02:35,707 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:02:35,707 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:02:34" (3/4) ... [2024-12-02 07:02:35,708 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 07:02:35,735 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-12-02 07:02:35,769 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:02:35,769 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97cc6ca4-1536-4cb6-904e-bca17b1cc55e/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:02:35,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:02:35,770 INFO L158 Benchmark]: Toolchain (without parser) took 1914.11ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 56.6MB in the end (delta: 34.9MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-12-02 07:02:35,770 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 84.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:02:35,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.89ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 74.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:02:35,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:02:35,771 INFO L158 Benchmark]: Boogie Preprocessor took 40.28ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:02:35,771 INFO L158 Benchmark]: RCFGBuilder took 331.67ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 59.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:02:35,771 INFO L158 Benchmark]: TraceAbstraction took 1053.58ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 61.0MB in the end (delta: -2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:02:35,771 INFO L158 Benchmark]: Witness Printer took 62.92ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 56.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:02:35,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 84.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.89ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 74.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.28ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 331.67ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 59.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1053.58ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 61.0MB in the end (delta: -2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.92ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 56.6MB 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L515] length = 1 VAL [length=1] [L516] int fac = __VERIFIER_nondet_int(); [L517] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L517] fac = 1 VAL [fac=1, length=1] [L518] int *arr = __builtin_alloca (length); [L519] int *arr2 = __builtin_alloca (fac*length); VAL [arr2={3:0}, arr={2:0}, fac=1, length=1] [L520] COND FALSE !(!arr || !arr2) [L521] i=0 VAL [arr2={3:0}, arr={2:0}, fac=1, i=0, length=1] [L521] COND TRUE i