./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_search-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/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_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_search-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef935aaf7590747bfbe771bbb249e6b84337edbf0e97024d9de82d0d23d44f30 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:02:55,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:02:55,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-12-02 06:02:55,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:02:55,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:02:55,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:02:55,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:02:55,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:02:55,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:02:55,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:02:55,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:02:55,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:02:55,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:02:55,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:02:55,227 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:02:55,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:02:55,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:02:55,228 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:02:55,229 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:02:55,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:02:55,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:02:55,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:02:55,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:02:55,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:02:55,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:02:55,231 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_769f63b7-7b79-4171-baa1-9c0e50c14dcc/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-memcleanup) ) 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 -> ef935aaf7590747bfbe771bbb249e6b84337edbf0e97024d9de82d0d23d44f30 [2024-12-02 06:02:55,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:02:55,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:02:55,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:02:55,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:02:55,441 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:02:55,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/list-properties/list_search-1.i [2024-12-02 06:02:58,024 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/data/adeffd841/4ef84806ae06499bb242657d2df32211/FLAGf02d04835 [2024-12-02 06:02:58,274 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:02:58,275 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/sv-benchmarks/c/list-properties/list_search-1.i [2024-12-02 06:02:58,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/data/adeffd841/4ef84806ae06499bb242657d2df32211/FLAGf02d04835 [2024-12-02 06:02:58,612 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/data/adeffd841/4ef84806ae06499bb242657d2df32211 [2024-12-02 06:02:58,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:02:58,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:02:58,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:02:58,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:02:58,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:02:58,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58, skipping insertion in model container [2024-12-02 06:02:58,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:02:58,861 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 06:02:58,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:02:58,875 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:02:58,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:02:58,935 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:02:58,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58 WrapperNode [2024-12-02 06:02:58,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:02:58,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:02:58,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:02:58,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:02:58,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,968 INFO L138 Inliner]: procedures = 125, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-02 06:02:58,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:02:58,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:02:58,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:02:58,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:02:58,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,994 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-12-02 06:02:58,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:58,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,000 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:02:59,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:02:59,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:02:59,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:02:59,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (1/1) ... [2024-12-02 06:02:59,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:02:59,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:02:59,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:02:59,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:02:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2024-12-02 06:02:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2024-12-02 06:02:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:02:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:02:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:02:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:02:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:02:59,159 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:02:59,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:02:59,295 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-02 06:02:59,295 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:02:59,304 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:02:59,304 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:02:59,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:02:59 BoogieIcfgContainer [2024-12-02 06:02:59,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:02:59,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:02:59,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:02:59,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:02:59,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:02:58" (1/3) ... [2024-12-02 06:02:59,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bee9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:02:59, skipping insertion in model container [2024-12-02 06:02:59,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:02:58" (2/3) ... [2024-12-02 06:02:59,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bee9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:02:59, skipping insertion in model container [2024-12-02 06:02:59,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:02:59" (3/3) ... [2024-12-02 06:02:59,312 INFO L128 eAbstractionObserver]: Analyzing ICFG list_search-1.i [2024-12-02 06:02:59,323 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:02:59,324 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG list_search-1.i that has 2 procedures, 34 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 06:02:59,353 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:02:59,363 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;@6c76b240, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:02:59,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 06:02:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 28 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 06:02:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 06:02:59,372 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:02:59,372 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:02:59,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:02:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:02:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash 437081354, now seen corresponding path program 1 times [2024-12-02 06:02:59,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:02:59,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792605852] [2024-12-02 06:02:59,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:02:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 06:02:59,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:02:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792605852] [2024-12-02 06:02:59,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792605852] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:02:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792949558] [2024-12-02 06:02:59,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:02:59,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:02:59,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:02:59,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:02:59,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:02:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:02:59,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:02:59,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:02:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 06:02:59,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:02:59,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792949558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:02:59,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:02:59,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2024-12-02 06:02:59,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145467712] [2024-12-02 06:02:59,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:02:59,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:02:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:00,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:03:00,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:03:00,012 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 28 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:00,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:00,024 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2024-12-02 06:03:00,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:03:00,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2024-12-02 06:03:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:00,030 INFO L225 Difference]: With dead ends: 33 [2024-12-02 06:03:00,030 INFO L226 Difference]: Without dead ends: 31 [2024-12-02 06:03:00,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:03:00,033 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:00,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:03:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-12-02 06:03:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-12-02 06:03:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 06:03:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-12-02 06:03:00,058 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 37 [2024-12-02 06:03:00,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:00,059 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-12-02 06:03:00,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-12-02 06:03:00,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 06:03:00,061 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:00,061 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:00,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:03:00,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:00,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:00,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:00,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1497414269, now seen corresponding path program 1 times [2024-12-02 06:03:00,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:00,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356312101] [2024-12-02 06:03:00,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:00,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 06:03:00,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:00,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356312101] [2024-12-02 06:03:00,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356312101] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:00,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169562797] [2024-12-02 06:03:00,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:00,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:03:00,434 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:03:00,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:03:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:00,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:03:00,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 06:03:00,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:03:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169562797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:00,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:03:00,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2024-12-02 06:03:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089491077] [2024-12-02 06:03:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:00,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:03:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:00,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:03:00,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:03:00,637 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:00,680 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-12-02 06:03:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:03:00,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2024-12-02 06:03:00,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:00,681 INFO L225 Difference]: With dead ends: 36 [2024-12-02 06:03:00,681 INFO L226 Difference]: Without dead ends: 36 [2024-12-02 06:03:00,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:03:00,682 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:00,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:03:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-12-02 06:03:00,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2024-12-02 06:03:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 06:03:00,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-12-02 06:03:00,687 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 39 [2024-12-02 06:03:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:00,688 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-12-02 06:03:00,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-12-02 06:03:00,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 06:03:00,689 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:00,689 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:00,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 06:03:00,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:00,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:00,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1699263227, now seen corresponding path program 1 times [2024-12-02 06:03:00,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:00,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924072703] [2024-12-02 06:03:00,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:00,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 06:03:01,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:01,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924072703] [2024-12-02 06:03:01,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924072703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:01,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:01,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 06:03:01,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640703888] [2024-12-02 06:03:01,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:01,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 06:03:01,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:01,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:03:01,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:03:01,349 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:01,567 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2024-12-02 06:03:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 06:03:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2024-12-02 06:03:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:01,570 INFO L225 Difference]: With dead ends: 45 [2024-12-02 06:03:01,570 INFO L226 Difference]: Without dead ends: 45 [2024-12-02 06:03:01,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:03:01,571 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:01,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 108 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:03:01,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-12-02 06:03:01,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2024-12-02 06:03:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 06:03:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2024-12-02 06:03:01,576 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 39 [2024-12-02 06:03:01,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:01,576 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2024-12-02 06:03:01,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2024-12-02 06:03:01,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 06:03:01,577 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:01,578 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:01,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:03:01,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:01,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash 889916601, now seen corresponding path program 1 times [2024-12-02 06:03:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:01,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184241159] [2024-12-02 06:03:01,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:01,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 06:03:01,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:01,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184241159] [2024-12-02 06:03:01,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184241159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:03:01,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:03:01,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 06:03:01,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994884832] [2024-12-02 06:03:01,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:03:01,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:03:01,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:01,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:03:01,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 06:03:01,721 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:01,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:01,803 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2024-12-02 06:03:01,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:03:01,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2024-12-02 06:03:01,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:01,805 INFO L225 Difference]: With dead ends: 43 [2024-12-02 06:03:01,805 INFO L226 Difference]: Without dead ends: 43 [2024-12-02 06:03:01,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:03:01,806 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:01,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 112 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:03:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-12-02 06:03:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2024-12-02 06:03:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.15625) internal successors, (37), 33 states have internal predecessors, (37), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 06:03:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-12-02 06:03:01,811 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 39 [2024-12-02 06:03:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:01,811 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-12-02 06:03:01,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 06:03:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-12-02 06:03:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 06:03:01,812 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:01,812 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:01,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:03:01,813 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:01,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:01,813 INFO L85 PathProgramCache]: Analyzing trace with hash -452591308, now seen corresponding path program 1 times [2024-12-02 06:03:01,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:01,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437835901] [2024-12-02 06:03:01,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:01,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 06:03:03,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:03,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437835901] [2024-12-02 06:03:03,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437835901] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:03,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835008385] [2024-12-02 06:03:03,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:03,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:03,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:03:03,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:03:03,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:03:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:03,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-12-02 06:03:03,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:03,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-12-02 06:03:03,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:03:03,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 21 [2024-12-02 06:03:03,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:03:03,588 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-12-02 06:03:03,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-12-02 06:03:03,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 06:03:03,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-12-02 06:03:03,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:03,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2024-12-02 06:03:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 06:03:04,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:03:04,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:04,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 24 [2024-12-02 06:03:04,383 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_2 (Array Int Int)) (v_~head~0.base_23 Int)) (or (not (= (select (select (store |c_#memory_int#1| v_~head~0.base_23 v_arrayElimArr_2) c_~head~0.base) c_~head~0.offset) 2)) (not (= 3 (select v_arrayElimArr_2 0))))) is different from false [2024-12-02 06:03:04,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835008385] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:04,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:03:04,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2024-12-02 06:03:04,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785344412] [2024-12-02 06:03:04,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:03:04,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 06:03:04,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:04,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 06:03:04,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1087, Unknown=1, NotChecked=66, Total=1260 [2024-12-02 06:03:04,386 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 25 states have internal predecessors, (55), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 06:03:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:05,405 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-12-02 06:03:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 06:03:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 25 states have internal predecessors, (55), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2024-12-02 06:03:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:05,406 INFO L225 Difference]: With dead ends: 59 [2024-12-02 06:03:05,406 INFO L226 Difference]: Without dead ends: 59 [2024-12-02 06:03:05,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=250, Invalid=2203, Unknown=1, NotChecked=96, Total=2550 [2024-12-02 06:03:05,408 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 74 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:05,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 244 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 06:03:05,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-12-02 06:03:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2024-12-02 06:03:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 06:03:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2024-12-02 06:03:05,414 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 43 [2024-12-02 06:03:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:05,414 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2024-12-02 06:03:05,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.896551724137931) internal successors, (55), 25 states have internal predecessors, (55), 3 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-12-02 06:03:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2024-12-02 06:03:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 06:03:05,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:05,415 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:05,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 06:03:05,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:05,616 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:05,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1156002468, now seen corresponding path program 1 times [2024-12-02 06:03:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:05,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942749770] [2024-12-02 06:03:05,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 06:03:06,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942749770] [2024-12-02 06:03:06,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942749770] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968595256] [2024-12-02 06:03:06,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:06,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:06,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:03:06,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:03:06,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:03:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:06,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 06:03:06,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:06,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:03:06,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-12-02 06:03:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:03:06,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:03:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 06:03:06,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968595256] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:03:06,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:03:06,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 17 [2024-12-02 06:03:06,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561507613] [2024-12-02 06:03:06,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:03:06,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 06:03:06,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:06,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 06:03:06,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:03:06,533 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 16 states have internal predecessors, (67), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 06:03:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:06,788 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2024-12-02 06:03:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:03:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 16 states have internal predecessors, (67), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-12-02 06:03:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:06,790 INFO L225 Difference]: With dead ends: 58 [2024-12-02 06:03:06,790 INFO L226 Difference]: Without dead ends: 58 [2024-12-02 06:03:06,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2024-12-02 06:03:06,791 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 43 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:06,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 191 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:03:06,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-12-02 06:03:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 51. [2024-12-02 06:03:06,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 06:03:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-12-02 06:03:06,796 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 45 [2024-12-02 06:03:06,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:06,796 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-12-02 06:03:06,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 16 states have internal predecessors, (67), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 06:03:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-12-02 06:03:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-12-02 06:03:06,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:06,797 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:06,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:03:06,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:06,997 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:06,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1936749843, now seen corresponding path program 2 times [2024-12-02 06:03:06,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:06,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279852911] [2024-12-02 06:03:06,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:03:06,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:07,047 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:03:07,047 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:03:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:03:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279852911] [2024-12-02 06:03:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279852911] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542158670] [2024-12-02 06:03:09,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 06:03:09,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:09,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:03:09,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:03:09,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:03:09,191 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 06:03:09,191 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 06:03:09,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-12-02 06:03:09,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:09,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 06:03:09,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-12-02 06:03:09,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:03:09,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-02 06:03:09,659 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-12-02 06:03:09,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-12-02 06:03:09,677 INFO L349 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2024-12-02 06:03:09,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2024-12-02 06:03:09,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-12-02 06:03:09,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2024-12-02 06:03:09,899 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-12-02 06:03:09,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 23 [2024-12-02 06:03:09,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:03:09,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 36 [2024-12-02 06:03:09,928 INFO L349 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2024-12-02 06:03:09,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31 [2024-12-02 06:03:09,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:03:09,945 INFO L349 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2024-12-02 06:03:09,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2024-12-02 06:03:10,314 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 06:03:10,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 33 [2024-12-02 06:03:10,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 06:03:10,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 06:03:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:03:10,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:03:10,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:10,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2024-12-02 06:03:10,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:10,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2024-12-02 06:03:10,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542158670] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:10,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:03:10,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 35 [2024-12-02 06:03:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866222758] [2024-12-02 06:03:10,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:03:10,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 06:03:10,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:10,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 06:03:10,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1539, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 06:03:10,890 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 35 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 31 states have internal predecessors, (62), 5 states have call successors, (6), 3 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-12-02 06:03:12,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:12,878 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2024-12-02 06:03:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 06:03:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 31 states have internal predecessors, (62), 5 states have call successors, (6), 3 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 47 [2024-12-02 06:03:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:12,879 INFO L225 Difference]: With dead ends: 63 [2024-12-02 06:03:12,879 INFO L226 Difference]: Without dead ends: 63 [2024-12-02 06:03:12,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=333, Invalid=3327, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 06:03:12,880 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 110 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:12,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 404 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:03:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-12-02 06:03:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2024-12-02 06:03:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-12-02 06:03:12,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2024-12-02 06:03:12,884 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 47 [2024-12-02 06:03:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:12,885 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2024-12-02 06:03:12,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 31 states have internal predecessors, (62), 5 states have call successors, (6), 3 states have call predecessors, (6), 7 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2024-12-02 06:03:12,885 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2024-12-02 06:03:12,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-12-02 06:03:12,885 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:12,885 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:12,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:03:13,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:13,086 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:13,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1548870827, now seen corresponding path program 1 times [2024-12-02 06:03:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:13,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822314513] [2024-12-02 06:03:13,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:13,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:13,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 06:03:13,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:03:13,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822314513] [2024-12-02 06:03:13,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822314513] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:13,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707415534] [2024-12-02 06:03:13,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:03:13,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:13,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:03:13,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:03:13,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:03:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:03:14,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-12-02 06:03:14,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:03:14,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 06:03:14,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 06:03:14,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-02 06:03:14,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2024-12-02 06:03:14,206 INFO L349 Elim1Store]: treesize reduction 25, result has 45.7 percent of original size [2024-12-02 06:03:14,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 28 [2024-12-02 06:03:14,217 INFO L349 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2024-12-02 06:03:14,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-12-02 06:03:14,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-02 06:03:14,360 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-12-02 06:03:14,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 15 [2024-12-02 06:03:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 06:03:14,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:03:14,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 06:03:14,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2024-12-02 06:03:14,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707415534] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:03:14,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:03:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 24 [2024-12-02 06:03:14,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367079273] [2024-12-02 06:03:14,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:03:14,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 06:03:14,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:03:14,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 06:03:14,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2024-12-02 06:03:14,560 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 24 states, 24 states have (on average 2.25) internal successors, (54), 20 states have internal predecessors, (54), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 06:03:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:03:15,564 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2024-12-02 06:03:15,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 06:03:15,565 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 20 states have internal predecessors, (54), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2024-12-02 06:03:15,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:03:15,566 INFO L225 Difference]: With dead ends: 74 [2024-12-02 06:03:15,566 INFO L226 Difference]: Without dead ends: 74 [2024-12-02 06:03:15,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=314, Invalid=1848, Unknown=0, NotChecked=0, Total=2162 [2024-12-02 06:03:15,567 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 113 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:03:15,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 296 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:03:15,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-12-02 06:03:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 67. [2024-12-02 06:03:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 56 states have internal predecessors, (60), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-12-02 06:03:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2024-12-02 06:03:15,570 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 47 [2024-12-02 06:03:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:03:15,571 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2024-12-02 06:03:15,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 20 states have internal predecessors, (54), 3 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2024-12-02 06:03:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2024-12-02 06:03:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-02 06:03:15,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:03:15,572 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:15,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:03:15,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:03:15,772 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 06:03:15,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:03:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash -597979098, now seen corresponding path program 3 times [2024-12-02 06:03:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:03:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831580862] [2024-12-02 06:03:15,773 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 06:03:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:03:15,806 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 06:03:15,806 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 06:03:15,806 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:03:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:03:15,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 06:03:15,858 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 06:03:15,859 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-12-02 06:03:15,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-12-02 06:03:15,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:03:15,863 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2024-12-02 06:03:15,896 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:03:15,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:03:15 BoogieIcfgContainer [2024-12-02 06:03:15,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:03:15,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:03:15,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:03:15,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:03:15,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:02:59" (3/4) ... [2024-12-02 06:03:15,900 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 06:03:15,946 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 23. [2024-12-02 06:03:16,002 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:03:16,003 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 06:03:16,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:03:16,004 INFO L158 Benchmark]: Toolchain (without parser) took 17389.03ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 91.5MB in the beginning and 131.2MB in the end (delta: -39.7MB). Peak memory consumption was 169.9MB. Max. memory is 16.1GB. [2024-12-02 06:03:16,004 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:03:16,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.28ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 74.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:03:16,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:03:16,004 INFO L158 Benchmark]: Boogie Preprocessor took 37.25ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:03:16,005 INFO L158 Benchmark]: RCFGBuilder took 297.43ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 57.5MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:03:16,005 INFO L158 Benchmark]: TraceAbstraction took 16592.31ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 56.7MB in the beginning and 136.8MB in the end (delta: -80.2MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. [2024-12-02 06:03:16,005 INFO L158 Benchmark]: Witness Printer took 103.91ms. Allocated memory is still 327.2MB. Free memory was 136.8MB in the beginning and 131.2MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:03:16,006 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.28ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 74.4MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.25ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 297.43ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 57.5MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16592.31ms. Allocated memory was 117.4MB in the beginning and 327.2MB in the end (delta: 209.7MB). Free memory was 56.7MB in the beginning and 136.8MB in the end (delta: -80.2MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. * Witness Printer took 103.91ms. Allocated memory is still 327.2MB. Free memory was 136.8MB in the beginning and 131.2MB in the end (delta: 5.6MB). 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L533] mlist *head; VAL [head={0:0}] [L554] int i; [L555] mlist *mylist, *temp; VAL [head={0:0}] [L556] CALL insert_list(mylist,2) VAL [\old(k)=2, head={0:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=2, head={0:0}, k=2, l={-1:0}] [L544] COND TRUE head==((void *)0) [L545] l->next = ((void *)0) VAL [\old(k)=2, head={0:0}, k=2, l={-1:0}] [L550] head = l [L551] return 0; VAL [\old(k)=2, \result=0, head={-1:0}, k=2] [L556] RET insert_list(mylist,2) VAL [head={-1:0}, mylist={59:58}] [L557] CALL insert_list(mylist,5) VAL [\old(k)=5, head={-1:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=5, head={-1:0}, k=5, l={-5:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=5, head={-1:0}, l={-5:0}] [L550] head = l [L551] return 0; VAL [\old(k)=5, \result=0, head={-5:0}] [L557] RET insert_list(mylist,5) VAL [head={-5:0}, mylist={59:58}] [L558] CALL insert_list(mylist,1) VAL [\old(k)=1, head={-5:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=1, head={-5:0}, k=1, l={-3:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=1, head={-5:0}, l={-3:0}] [L550] head = l [L551] return 0; VAL [\old(k)=1, \result=0, head={-3:0}] [L558] RET insert_list(mylist,1) VAL [head={-3:0}, mylist={59:58}] [L559] CALL insert_list(mylist,3) VAL [\old(k)=3, head={-3:0}] [L542] l = (mlist*)malloc(sizeof(mlist)) [L543] l->key = k VAL [\old(k)=3, head={-3:0}, k=3, l={-4:0}] [L544] COND FALSE !(head==((void *)0)) [L547] l->key = k [L548] l->next = head VAL [\old(k)=3, head={-3:0}, l={-4:0}] [L550] head = l [L551] return 0; VAL [\old(k)=3, \result=0, head={-4:0}] [L559] RET insert_list(mylist,3) VAL [head={-4:0}, mylist={59:58}] [L560] CALL, EXPR search_list(head,2) [L535] l = head VAL [head={-4:0}, k=2, l={-4:0}] [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-4:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-4:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-3:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-3:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-5:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-5:0}] [L536] COND TRUE l!=((void *)0) && l->key!=k [L537] EXPR l->next [L537] l = l->next [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-1:0}] [L536] l!=((void *)0) && l->key!=k [L536] EXPR l->key [L536] l!=((void *)0) && l->key!=k VAL [head={-4:0}, k=2, l={-1:0}] [L536] COND FALSE !(l!=((void *)0) && l->key!=k) [L539] return l; VAL [\result={-1:0}, head={-4:0}, k=2] [L560] RET, EXPR search_list(head,2) [L560] temp = search_list(head,2) [L561] EXPR temp->key [L561] CALL __VERIFIER_assert(temp->key==1) [L14] COND TRUE !(cond) VAL [head={-4:0}] [L15] CALL reach_error() [L12] COND FALSE !(0) VAL [head={-4:0}] [L12] __assert_fail ("0", "list_search-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [head={-4:0}] - UnprovableResult [Line: 553]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 431 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 1460 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1243 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2010 IncrementalHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 217 mSDtfsCounter, 2010 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 530 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=8, InterpolantAutomatonStates: 106, 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, 8 MinimizatonAttempts, 33 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 624 ConstructedInterpolants, 10 QuantifiedInterpolants, 6833 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2349 ConjunctsInSsa, 256 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 370/508 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 06:03:16,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_769f63b7-7b79-4171-baa1-9c0e50c14dcc/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(valid-memcleanup)