./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/expand-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/expand-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 908f351d67dfa2de1b888e08b72fe27fb9cb5c4194538cd38f0c9a9f5743efe9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:35:24,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:35:25,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-02 12:35:25,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:35:25,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:35:25,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:35:25,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:35:25,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:35:25,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:35:25,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:35:25,128 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:35:25,129 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:35:25,129 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:35:25,130 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:35:25,136 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:35:25,137 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:35:25,137 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:35:25,138 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:35:25,138 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:35:25,139 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:35:25,139 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:35:25,147 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:35:25,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:35:25,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:35:25,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:35:25,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:35:25,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:35:25,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:35:25,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:35:25,160 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:35:25,161 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:35:25,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:35:25,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:35:25,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:35:25,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:35:25,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:35:25,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:35:25,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:25,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:35:25,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:35:25,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:35:25,170 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:35:25,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:35:25,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:35:25,175 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:35:25,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:35:25,176 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 908f351d67dfa2de1b888e08b72fe27fb9cb5c4194538cd38f0c9a9f5743efe9 [2024-11-02 12:35:25,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:35:25,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:35:25,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:35:25,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:35:25,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:35:25,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/busybox-1.22.0/expand-3.i Unable to find full path for "g++" [2024-11-02 12:35:27,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:35:28,521 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:35:28,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/sv-benchmarks/c/busybox-1.22.0/expand-3.i [2024-11-02 12:35:28,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/data/8a9b22694/6e26da4e2ebb481f85d6abbbb5bc84e9/FLAGc44680c28 [2024-11-02 12:35:29,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/data/8a9b22694/6e26da4e2ebb481f85d6abbbb5bc84e9 [2024-11-02 12:35:29,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:35:29,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:35:29,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:29,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:35:29,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:35:29,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:29" (1/1) ... [2024-11-02 12:35:29,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7542c8b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:29, skipping insertion in model container [2024-11-02 12:35:29,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:29" (1/1) ... [2024-11-02 12:35:29,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:35:31,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:31,301 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:31,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:31,848 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:31,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31 WrapperNode [2024-11-02 12:35:31,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:31,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:31,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:31,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:31,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:31,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,073 INFO L138 Inliner]: procedures = 590, calls = 889, calls flagged for inlining = 33, calls inlined = 30, statements flattened = 2566 [2024-11-02 12:35:32,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:32,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:32,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:32,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:32,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:32,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:32,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:32,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:32,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (1/1) ... [2024-11-02 12:35:32,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:32,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:32,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:32,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure getopt32 [2024-11-02 12:35:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt32 [2024-11-02 12:35:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2024-11-02 12:35:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2024-11-02 12:35:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:35:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:35:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-11-02 12:35:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-11-02 12:35:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:35:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:35:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:35:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:35:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:35:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-02 12:35:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-02 12:35:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-02 12:35:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-02 12:35:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2024-11-02 12:35:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2024-11-02 12:35:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:35:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:35:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2024-11-02 12:35:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2024-11-02 12:35:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2024-11-02 12:35:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2024-11-02 12:35:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 12:35:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 12:35:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:35:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:35:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:35:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:35:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:35:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure xatou_range [2024-11-02 12:35:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou_range [2024-11-02 12:35:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure unicode_strwidth [2024-11-02 12:35:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure unicode_strwidth [2024-11-02 12:35:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:35:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2024-11-02 12:35:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2024-11-02 12:35:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2024-11-02 12:35:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2024-11-02 12:35:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:35:33,277 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:33,280 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:39,459 INFO L? ?]: Removed 748 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:39,460 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:40,570 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:40,570 INFO L316 CfgBuilder]: Removed 43 assume(true) statements. [2024-11-02 12:35:40,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:40 BoogieIcfgContainer [2024-11-02 12:35:40,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:40,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:40,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:40,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:40,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:35:29" (1/3) ... [2024-11-02 12:35:40,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c21507d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:40, skipping insertion in model container [2024-11-02 12:35:40,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:31" (2/3) ... [2024-11-02 12:35:40,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c21507d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:40, skipping insertion in model container [2024-11-02 12:35:40,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:40" (3/3) ... [2024-11-02 12:35:40,580 INFO L112 eAbstractionObserver]: Analyzing ICFG expand-3.i [2024-11-02 12:35:40,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:40,600 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-11-02 12:35:40,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:40,739 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58ba9fae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:40,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-02 12:35:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 374 states have (on average 1.6871657754010696) internal successors, (631), 438 states have internal predecessors, (631), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-02 12:35:40,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:35:40,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:40,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:35:40,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-02 12:35:40,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:40,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2373521, now seen corresponding path program 1 times [2024-11-02 12:35:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462457358] [2024-11-02 12:35:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:40,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:44,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:44,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462457358] [2024-11-02 12:35:44,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462457358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:44,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:44,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505548460] [2024-11-02 12:35:44,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:44,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:44,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:44,548 INFO L87 Difference]: Start difference. First operand has 482 states, 374 states have (on average 1.6871657754010696) internal successors, (631), 438 states have internal predecessors, (631), 37 states have call successors, (37), 14 states have call predecessors, (37), 14 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-02 12:35:46,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:35:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:48,026 INFO L93 Difference]: Finished difference Result 950 states and 1415 transitions. [2024-11-02 12:35:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:48,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-02 12:35:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:48,042 INFO L225 Difference]: With dead ends: 950 [2024-11-02 12:35:48,042 INFO L226 Difference]: Without dead ends: 452 [2024-11-02 12:35:48,050 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 [2024-11-02 12:35:48,053 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 1 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:48,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1098 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2024-11-02 12:35:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-02 12:35:48,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-02 12:35:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 360 states have (on average 1.5305555555555554) internal successors, (551), 416 states have internal predecessors, (551), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-02 12:35:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 601 transitions. [2024-11-02 12:35:48,131 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 601 transitions. Word has length 3 [2024-11-02 12:35:48,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:48,131 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 601 transitions. [2024-11-02 12:35:48,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-02 12:35:48,132 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 601 transitions. [2024-11-02 12:35:48,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 12:35:48,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:48,133 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2024-11-02 12:35:48,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:35:48,134 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-02 12:35:48,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:48,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1991757444, now seen corresponding path program 1 times [2024-11-02 12:35:48,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:48,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61123248] [2024-11-02 12:35:48,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:48,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:50,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:50,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61123248] [2024-11-02 12:35:50,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61123248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:35:50,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351992349] [2024-11-02 12:35:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:50,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:50,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:50,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:50,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2add42-cb64-403b-b5f4-3a00801f6787/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:35:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:53,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 1974 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:35:53,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:53,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:53,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351992349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:53,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:35:53,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2024-11-02 12:35:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184550697] [2024-11-02 12:35:53,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:53,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:53,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:53,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:53,302 INFO L87 Difference]: Start difference. First operand 452 states and 601 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) [2024-11-02 12:35:55,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []