./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:37:38,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:37:39,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 03:37:39,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:37:39,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:37:39,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:37:39,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:37:39,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:37:39,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:37:39,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:37:39,082 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:37:39,083 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:37:39,083 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:37:39,083 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:37:39,084 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:37:39,084 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:37:39,085 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:37:39,086 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:37:39,086 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:37:39,086 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:37:39,086 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:37:39,086 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:37:39,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:37:39,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:37:39,087 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:37:39,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:37:39,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:37:39,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:37:39,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:37:39,090 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:37:39,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:37:39,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:37:39,090 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:37:39,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:37:39,091 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2024-11-14 03:37:39,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:37:39,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:37:39,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:37:39,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:37:39,482 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:37:39,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i Unable to find full path for "g++" [2024-11-14 03:37:41,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:37:42,000 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:37:42,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2024-11-14 03:37:42,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/data/821fc9f5f/fed1b45cfafb48e7a1748f2caa106532/FLAG1e8211a65 [2024-11-14 03:37:42,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/data/821fc9f5f/fed1b45cfafb48e7a1748f2caa106532 [2024-11-14 03:37:42,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:37:42,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:37:42,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:37:42,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:37:42,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:37:42,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:37:42" (1/1) ... [2024-11-14 03:37:42,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7967d450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:42, skipping insertion in model container [2024-11-14 03:37:42,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:37:42" (1/1) ... [2024-11-14 03:37:42,141 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:37:42,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:37:42,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:37:43,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:37:43,080 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:37:43,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43 WrapperNode [2024-11-14 03:37:43,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:37:43,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:37:43,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:37:43,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:37:43,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,130 INFO L138 Inliner]: procedures = 269, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2024-11-14 03:37:43,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:37:43,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:37:43,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:37:43,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:37:43,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,155 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:37:43,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:37:43,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:37:43,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:37:43,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (1/1) ... [2024-11-14 03:37:43,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:37:43,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:37:43,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:37:43,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:37:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:37:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-14 03:37:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:37:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-14 03:37:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:37:43,237 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-14 03:37:43,237 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-14 03:37:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:37:43,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:37:43,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:37:43,240 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 03:37:43,432 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:37:43,434 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:37:43,667 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 03:37:43,667 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:37:43,915 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:37:43,915 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:37:43,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:37:43 BoogieIcfgContainer [2024-11-14 03:37:43,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:37:43,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:37:43,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:37:43,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:37:43,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:37:42" (1/3) ... [2024-11-14 03:37:43,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a76936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:37:43, skipping insertion in model container [2024-11-14 03:37:43,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:37:43" (2/3) ... [2024-11-14 03:37:43,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a76936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:37:43, skipping insertion in model container [2024-11-14 03:37:43,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:37:43" (3/3) ... [2024-11-14 03:37:43,933 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2024-11-14 03:37:43,952 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:37:43,954 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_13-equ_proc_nr.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 5 error locations. [2024-11-14 03:37:43,954 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 03:37:44,004 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 03:37:44,046 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 46 flow [2024-11-14 03:37:44,082 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 87 states have (on average 2.0) internal successors, (174), 97 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:44,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:37:44,130 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=FINITE_AUTOMATA, 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;@161b611, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:37:44,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-14 03:37:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 87 states have (on average 2.0) internal successors, (174), 97 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:44,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:37:44,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:44,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:37:44,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-14 03:37:44,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:44,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1695883668, now seen corresponding path program 1 times [2024-11-14 03:37:44,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:37:44,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059185709] [2024-11-14 03:37:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:44,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:37:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:37:44,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:37:44,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059185709] [2024-11-14 03:37:44,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059185709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:44,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:44,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:37:44,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688791623] [2024-11-14 03:37:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:44,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:37:44,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:37:44,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:37:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:44,599 INFO L87 Difference]: Start difference. First operand has 98 states, 87 states have (on average 2.0) internal successors, (174), 97 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:44,664 INFO L93 Difference]: Finished difference Result 98 states and 174 transitions. [2024-11-14 03:37:44,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:37:44,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 03:37:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:44,677 INFO L225 Difference]: With dead ends: 98 [2024-11-14 03:37:44,677 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 03:37:44,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:44,684 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:44,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:37:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 03:37:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 03:37:44,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 80 states have (on average 1.9125) internal successors, (153), 86 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 153 transitions. [2024-11-14 03:37:44,730 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 153 transitions. Word has length 6 [2024-11-14 03:37:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:44,731 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 153 transitions. [2024-11-14 03:37:44,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 153 transitions. [2024-11-14 03:37:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:37:44,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:44,732 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:37:44,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:37:44,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-14 03:37:44,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:44,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1695883669, now seen corresponding path program 1 times [2024-11-14 03:37:44,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:37:44,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024015062] [2024-11-14 03:37:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:44,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:37:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:37:45,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:37:45,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024015062] [2024-11-14 03:37:45,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024015062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:45,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:45,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:37:45,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884653587] [2024-11-14 03:37:45,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:45,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:37:45,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:37:45,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:37:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:45,036 INFO L87 Difference]: Start difference. First operand 87 states and 153 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:45,083 INFO L93 Difference]: Finished difference Result 87 states and 153 transitions. [2024-11-14 03:37:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:37:45,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 03:37:45,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:45,086 INFO L225 Difference]: With dead ends: 87 [2024-11-14 03:37:45,086 INFO L226 Difference]: Without dead ends: 72 [2024-11-14 03:37:45,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:45,088 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:45,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:37:45,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-14 03:37:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-14 03:37:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 69 states have (on average 1.8115942028985508) internal successors, (125), 71 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 125 transitions. [2024-11-14 03:37:45,101 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 125 transitions. Word has length 6 [2024-11-14 03:37:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:45,104 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 125 transitions. [2024-11-14 03:37:45,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 125 transitions. [2024-11-14 03:37:45,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:37:45,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:45,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:37:45,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:37:45,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-14 03:37:45,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:45,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1695635196, now seen corresponding path program 1 times [2024-11-14 03:37:45,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:37:45,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681805632] [2024-11-14 03:37:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:45,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:37:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:37:45,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:37:45,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681805632] [2024-11-14 03:37:45,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681805632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:45,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:45,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:37:45,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138410569] [2024-11-14 03:37:45,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:45,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:45,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:37:45,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:45,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:37:45,667 INFO L87 Difference]: Start difference. First operand 72 states and 125 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:45,786 INFO L93 Difference]: Finished difference Result 72 states and 125 transitions. [2024-11-14 03:37:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:37:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 03:37:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:45,788 INFO L225 Difference]: With dead ends: 72 [2024-11-14 03:37:45,790 INFO L226 Difference]: Without dead ends: 65 [2024-11-14 03:37:45,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:37:45,792 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:45,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 8 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:37:45,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-14 03:37:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-14 03:37:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.7777777777777777) internal successors, (112), 64 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 112 transitions. [2024-11-14 03:37:45,807 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 112 transitions. Word has length 6 [2024-11-14 03:37:45,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:45,807 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 112 transitions. [2024-11-14 03:37:45,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:45,808 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2024-11-14 03:37:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:37:45,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:45,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:37:45,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:37:45,810 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-14 03:37:45,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1695635195, now seen corresponding path program 1 times [2024-11-14 03:37:45,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:37:45,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825774847] [2024-11-14 03:37:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:37:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:37:46,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:37:46,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825774847] [2024-11-14 03:37:46,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825774847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:46,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:46,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:37:46,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905562521] [2024-11-14 03:37:46,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:46,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:37:46,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:37:46,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:37:46,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:37:46,097 INFO L87 Difference]: Start difference. First operand 65 states and 112 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:46,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:46,199 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2024-11-14 03:37:46,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:37:46,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 03:37:46,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:46,201 INFO L225 Difference]: With dead ends: 65 [2024-11-14 03:37:46,201 INFO L226 Difference]: Without dead ends: 58 [2024-11-14 03:37:46,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:37:46,203 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:46,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:37:46,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-14 03:37:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-14 03:37:46,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.736842105263158) internal successors, (99), 57 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:46,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 99 transitions. [2024-11-14 03:37:46,215 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 99 transitions. Word has length 6 [2024-11-14 03:37:46,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:46,216 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 99 transitions. [2024-11-14 03:37:46,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2024-11-14 03:37:46,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:37:46,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:46,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:37:46,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:37:46,217 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-14 03:37:46,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1557944893, now seen corresponding path program 1 times [2024-11-14 03:37:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:37:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335302818] [2024-11-14 03:37:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:46,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:37:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:37:46,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:37:46,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335302818] [2024-11-14 03:37:46,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335302818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:37:46,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:37:46,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:37:46,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95748695] [2024-11-14 03:37:46,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:37:46,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:37:46,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:37:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:37:46,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:46,285 INFO L87 Difference]: Start difference. First operand 58 states and 99 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:46,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:46,320 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2024-11-14 03:37:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:37:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-14 03:37:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:46,321 INFO L225 Difference]: With dead ends: 58 [2024-11-14 03:37:46,322 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:37:46,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:37:46,325 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:46,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:37:46,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:37:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:37:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:46,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:37:46,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2024-11-14 03:37:46,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:46,327 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:37:46,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:37:46,328 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:37:46,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:37:46,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2024-11-14 03:37:46,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2024-11-14 03:37:46,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-11-14 03:37:46,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-14 03:37:46,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-11-14 03:37:46,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-11-14 03:37:46,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2024-11-14 03:37:46,334 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 8 remaining) [2024-11-14 03:37:46,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:37:46,339 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-14 03:37:46,345 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 03:37:46,345 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:37:46,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:37:46 BasicIcfg [2024-11-14 03:37:46,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:37:46,350 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:37:46,350 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:37:46,350 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:37:46,351 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:37:43" (3/4) ... [2024-11-14 03:37:46,354 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:37:46,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-14 03:37:46,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-11-14 03:37:46,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-14 03:37:46,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 03:37:46,455 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:37:46,459 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:37:46,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:37:46,460 INFO L158 Benchmark]: Toolchain (without parser) took 4366.85ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.2MB in the beginning and 234.5MB in the end (delta: -142.3MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2024-11-14 03:37:46,460 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:37:46,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 987.24ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 64.1MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:37:46,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.33ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:37:46,461 INFO L158 Benchmark]: Boogie Preprocessor took 26.08ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 60.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:37:46,461 INFO L158 Benchmark]: RCFGBuilder took 753.43ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 80.8MB in the end (delta: -20.0MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-11-14 03:37:46,462 INFO L158 Benchmark]: TraceAbstraction took 2427.87ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 80.2MB in the beginning and 238.5MB in the end (delta: -158.3MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2024-11-14 03:37:46,462 INFO L158 Benchmark]: Witness Printer took 109.12ms. Allocated memory is still 352.3MB. Free memory was 238.5MB in the beginning and 234.5MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:37:46,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 987.24ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 64.1MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.33ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.08ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 60.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 753.43ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 80.8MB in the end (delta: -20.0MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2427.87ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 80.2MB in the beginning and 238.5MB in the end (delta: -158.3MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. * Witness Printer took 109.12ms. Allocated memory is still 352.3MB. Free memory was 238.5MB in the beginning and 234.5MB in the end (delta: 4.0MB). There was no memory consumed. 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 - 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: 1001]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 32 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 325 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 03:37:46,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c74ee7-0984-4526-af49-324b51abcfd4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE