./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/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_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:27:25,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:27:25,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 10:27:25,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:27:25,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:27:25,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:27:25,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:27:25,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:27:25,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:27:25,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:27:25,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:27:25,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:27:25,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:27:25,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:27:25,241 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:27:25,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:27:25,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:27:25,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:27:25,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:27:25,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:27:25,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:27:25,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:27:25,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:27:25,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:27:25,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:27:25,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:27:25,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:27:25,244 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_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf [2024-12-02 10:27:25,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:27:25,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:27:25,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:27:25,480 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:27:25,480 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:27:25,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2024-12-02 10:27:28,136 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/data/d1d39289c/dd2f2b38090142679799948f0e55c37b/FLAGc34b014d6 [2024-12-02 10:27:28,387 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:27:28,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2024-12-02 10:27:28,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/data/d1d39289c/dd2f2b38090142679799948f0e55c37b/FLAGc34b014d6 [2024-12-02 10:27:28,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/data/d1d39289c/dd2f2b38090142679799948f0e55c37b [2024-12-02 10:27:28,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:27:28,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:27:28,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:27:28,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:27:28,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:27:28,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:28" (1/1) ... [2024-12-02 10:27:28,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a5d4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:28, skipping insertion in model container [2024-12-02 10:27:28,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:27:28" (1/1) ... [2024-12-02 10:27:28,736 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:27:28,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:27:29,001 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:27:29,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:27:29,074 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:27:29,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29 WrapperNode [2024-12-02 10:27:29,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:27:29,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:27:29,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:27:29,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:27:29,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,109 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-12-02 10:27:29,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:27:29,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:27:29,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:27:29,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:27:29,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,135 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [8, 10]. 56 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 3 writes are split as follows [3, 0]. [2024-12-02 10:27:29,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,142 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:27:29,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:27:29,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:27:29,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:27:29,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (1/1) ... [2024-12-02 10:27:29,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:27:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:27:29,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:27:29,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:27:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 10:27:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 10:27:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:27:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:27:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 10:27:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:27:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:27:29,202 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 10:27:29,307 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:27:29,308 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:27:29,468 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 10:27:29,468 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:27:29,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:27:29,563 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:27:29,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:29 BoogieIcfgContainer [2024-12-02 10:27:29,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:27:29,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:27:29,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:27:29,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:27:29,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:27:28" (1/3) ... [2024-12-02 10:27:29,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2bea70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:27:29, skipping insertion in model container [2024-12-02 10:27:29,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:27:29" (2/3) ... [2024-12-02 10:27:29,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2bea70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:27:29, skipping insertion in model container [2024-12-02 10:27:29,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:29" (3/3) ... [2024-12-02 10:27:29,572 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_12-fldsense_nr.i [2024-12-02 10:27:29,587 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:27:29,588 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_12-fldsense_nr.i that has 2 procedures, 38 locations, 1 initial locations, 0 loop locations, and 13 error locations. [2024-12-02 10:27:29,588 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 10:27:29,623 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 10:27:29,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 78 flow [2024-12-02 10:27:29,682 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-12-02 10:27:29,684 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:27:29,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-12-02 10:27:29,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 37 transitions, 78 flow [2024-12-02 10:27:29,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2024-12-02 10:27:29,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:27:29,709 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;@a94b37c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:27:29,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-12-02 10:27:29,714 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:27:29,714 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-12-02 10:27:29,714 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:27:29,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:27:29,715 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 10:27:29,715 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-12-02 10:27:29,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458963, now seen corresponding path program 1 times [2024-12-02 10:27:29,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:29,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288400691] [2024-12-02 10:27:29,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:29,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:29,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:29,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288400691] [2024-12-02 10:27:29,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288400691] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:29,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:29,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 10:27:29,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244532753] [2024-12-02 10:27:29,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:29,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:29,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:30,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:30,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:30,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-12-02 10:27:30,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:30,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:27:30,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-12-02 10:27:30,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:27:30,149 INFO L124 PetriNetUnfolderBase]: 55/167 cut-off events. [2024-12-02 10:27:30,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:27:30,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 167 events. 55/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 613 event pairs, 55 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 291. Up to 128 conditions per place. [2024-12-02 10:27:30,152 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 17 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2024-12-02 10:27:30,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 99 flow [2024-12-02 10:27:30,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:27:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-12-02 10:27:30,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-12-02 10:27:30,163 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 75 flow. Second operand 3 states and 63 transitions. [2024-12-02 10:27:30,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 99 flow [2024-12-02 10:27:30,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:27:30,169 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 64 flow [2024-12-02 10:27:30,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-12-02 10:27:30,175 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -5 predicate places. [2024-12-02 10:27:30,175 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 64 flow [2024-12-02 10:27:30,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:30,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:27:30,176 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 10:27:30,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:27:30,176 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-12-02 10:27:30,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458964, now seen corresponding path program 1 times [2024-12-02 10:27:30,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:30,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55461689] [2024-12-02 10:27:30,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:30,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:30,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:30,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55461689] [2024-12-02 10:27:30,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55461689] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:30,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:30,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 10:27:30,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990693580] [2024-12-02 10:27:30,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:30,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:30,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:30,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:30,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:30,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-12-02 10:27:30,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:30,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:27:30,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-12-02 10:27:30,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:27:30,379 INFO L124 PetriNetUnfolderBase]: 55/149 cut-off events. [2024-12-02 10:27:30,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:27:30,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 149 events. 55/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 489 event pairs, 55 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 277. Up to 128 conditions per place. [2024-12-02 10:27:30,381 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 16 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2024-12-02 10:27:30,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 88 flow [2024-12-02 10:27:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:27:30,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-12-02 10:27:30,383 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-12-02 10:27:30,383 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 64 flow. Second operand 3 states and 63 transitions. [2024-12-02 10:27:30,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 88 flow [2024-12-02 10:27:30,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:27:30,384 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 51 flow [2024-12-02 10:27:30,384 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2024-12-02 10:27:30,385 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -10 predicate places. [2024-12-02 10:27:30,385 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 51 flow [2024-12-02 10:27:30,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:30,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:27:30,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:27:30,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:27:30,385 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-12-02 10:27:30,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:27:30,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1322123299, now seen corresponding path program 1 times [2024-12-02 10:27:30,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:27:30,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593622875] [2024-12-02 10:27:30,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:27:30,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:27:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:27:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:27:30,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:27:30,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593622875] [2024-12-02 10:27:30,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593622875] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:27:30,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:27:30,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 10:27:30,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55902776] [2024-12-02 10:27:30,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:27:30,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:27:30,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:27:30,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:27:30,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:27:30,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 37 [2024-12-02 10:27:30,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:30,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:27:30,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 37 [2024-12-02 10:27:30,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:27:30,504 INFO L124 PetriNetUnfolderBase]: 50/132 cut-off events. [2024-12-02 10:27:30,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:27:30,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 132 events. 50/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 422 event pairs, 50 based on Foata normal form. 6/135 useless extension candidates. Maximal degree in co-relation 249. Up to 117 conditions per place. [2024-12-02 10:27:30,505 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-12-02 10:27:30,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 83 flow [2024-12-02 10:27:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:27:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:27:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-12-02 10:27:30,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-12-02 10:27:30,506 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 51 flow. Second operand 3 states and 72 transitions. [2024-12-02 10:27:30,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 83 flow [2024-12-02 10:27:30,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:27:30,507 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-12-02 10:27:30,507 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-12-02 10:27:30,508 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -11 predicate places. [2024-12-02 10:27:30,508 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-12-02 10:27:30,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:27:30,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-12-02 10:27:30,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-12-02 10:27:30,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-12-02 10:27:30,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-12-02 10:27:30,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-12-02 10:27:30,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-12-02 10:27:30,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-12-02 10:27:30,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2024-12-02 10:27:30,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2024-12-02 10:27:30,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:27:30,513 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 10:27:30,518 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 10:27:30,518 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:27:30,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:27:30 BasicIcfg [2024-12-02 10:27:30,523 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:27:30,523 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:27:30,523 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:27:30,523 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:27:30,524 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:27:29" (3/4) ... [2024-12-02 10:27:30,525 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 10:27:30,527 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-12-02 10:27:30,530 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-12-02 10:27:30,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 10:27:30,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 10:27:30,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 10:27:30,578 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:27:30,578 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 10:27:30,578 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:27:30,579 INFO L158 Benchmark]: Toolchain (without parser) took 1876.36ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 52.2MB in the end (delta: 63.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-12-02 10:27:30,579 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 81.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:27:30,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.69ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 96.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:27:30,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.65ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 94.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:27:30,580 INFO L158 Benchmark]: Boogie Preprocessor took 37.88ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:27:30,580 INFO L158 Benchmark]: RCFGBuilder took 414.46ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 67.7MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 10:27:30,581 INFO L158 Benchmark]: TraceAbstraction took 957.41ms. Allocated memory is still 142.6MB. Free memory was 67.2MB in the beginning and 55.9MB in the end (delta: 11.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-12-02 10:27:30,581 INFO L158 Benchmark]: Witness Printer took 55.18ms. Allocated memory is still 142.6MB. Free memory was 55.9MB in the beginning and 52.2MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:27:30,583 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 81.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.69ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 96.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.65ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 94.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.88ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.46ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 67.7MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 957.41ms. Allocated memory is still 142.6MB. Free memory was 67.2MB in the beginning and 55.9MB in the end (delta: 11.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 55.18ms. Allocated memory is still 142.6MB. Free memory was 55.9MB in the beginning and 52.2MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 687]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 7 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 10:27:30,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f58b7aa-4fe7-46c4-8adb-b1fd6915acb2/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 Result: TRUE