./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --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 ce82bd2068c431a8a58717550c5ca3a1f22bb267 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_27| --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:13:24,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:13:24,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:13:24,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:13:24,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:13:24,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:13:24,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:13:24,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:13:24,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:13:24,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:13:24,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:13:24,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:13:24,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:13:24,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:13:24,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:13:24,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:13:24,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:13:24,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:13:24,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:13:24,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:13:24,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:13:24,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:13:24,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:13:24,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:13:24,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:13:24,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:13:24,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:13:24,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:13:24,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:13:24,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:13:24,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:13:24,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:13:24,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:13:24,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:13:24,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:13:24,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:13:24,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:13:24,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:13:24,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:13:24,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:13:24,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:13:24,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-13 07:13:24,534 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:13:24,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:13:24,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:13:24,537 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:13:24,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:13:24,537 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:13:24,538 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:13:24,538 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:13:24,538 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:13:24,538 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:13:24,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:13:24,540 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:13:24,540 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:13:24,540 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:13:24,541 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:13:24,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:13:24,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:13:24,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:13:24,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:13:24,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:13:24,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:13:24,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:13:24,543 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 07:13:24,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:13:24,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:13:24,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:13:24,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:13:24,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:13:24,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:13:24,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:13:24,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:13:24,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:13:24,547 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:13:24,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:13:24,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:13:24,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:13:24,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:13:24,549 INFO L138 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_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce82bd2068c431a8a58717550c5ca3a1f22bb267 [2021-10-13 07:13:24,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:13:24,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:13:24,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:13:24,902 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:13:24,903 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:13:24,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-10-13 07:13:24,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/data/f6bcff330/f4a97fe1f2574f069cba616133cebafd/FLAGef0877edb [2021-10-13 07:13:25,749 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:13:25,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-10-13 07:13:25,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/data/f6bcff330/f4a97fe1f2574f069cba616133cebafd/FLAGef0877edb [2021-10-13 07:13:25,937 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/data/f6bcff330/f4a97fe1f2574f069cba616133cebafd [2021-10-13 07:13:25,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:13:25,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:13:25,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:13:25,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:13:25,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:13:25,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:13:25" (1/1) ... [2021-10-13 07:13:25,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35763287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:25, skipping insertion in model container [2021-10-13 07:13:25,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:13:25" (1/1) ... [2021-10-13 07:13:25,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:13:26,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:13:26,938 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-10-13 07:13:27,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:13:27,021 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:13:27,118 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-10-13 07:13:27,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:13:27,321 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:13:27,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27 WrapperNode [2021-10-13 07:13:27,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:13:27,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:13:27,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:13:27,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:13:27,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:13:27,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:13:27,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:13:27,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:13:27,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:13:27,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:13:27,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:13:27,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:13:27,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (1/1) ... [2021-10-13 07:13:27,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:13:27,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:13:27,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:13:27,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:13:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:13:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 07:13:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:13:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:13:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:13:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 07:13:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-10-13 07:13:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 07:13:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:13:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:13:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:13:29,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:13:29,172 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-13 07:13:29,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:13:29 BoogieIcfgContainer [2021-10-13 07:13:29,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:13:29,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:13:29,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:13:29,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:13:29,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:13:25" (1/3) ... [2021-10-13 07:13:29,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d840a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:13:29, skipping insertion in model container [2021-10-13 07:13:29,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:13:27" (2/3) ... [2021-10-13 07:13:29,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d840a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:13:29, skipping insertion in model container [2021-10-13 07:13:29,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:13:29" (3/3) ... [2021-10-13 07:13:29,187 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-2.i [2021-10-13 07:13:29,193 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:13:29,194 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-10-13 07:13:29,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:13:29,279 INFO L339 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, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:13:29,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-10-13 07:13:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 60 states have (on average 1.85) internal successors, (111), 88 states have internal predecessors, (111), 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) [2021-10-13 07:13:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 07:13:29,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:13:29,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 07:13:29,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-13 07:13:29,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:13:29,336 INFO L82 PathProgramCache]: Analyzing trace with hash 394005, now seen corresponding path program 1 times [2021-10-13 07:13:29,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:13:29,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275046969] [2021-10-13 07:13:29,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:13:29,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:13:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:13:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:13:29,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:13:29,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275046969] [2021-10-13 07:13:29,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275046969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:13:29,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:13:29,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:13:29,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850298612] [2021-10-13 07:13:29,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:13:29,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:13:29,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:13:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:13:29,864 INFO L87 Difference]: Start difference. First operand has 89 states, 60 states have (on average 1.85) internal successors, (111), 88 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) 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) [2021-10-13 07:13:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:13:29,936 INFO L93 Difference]: Finished difference Result 177 states and 221 transitions. [2021-10-13 07:13:29,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:13:29,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) 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 [2021-10-13 07:13:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:13:29,950 INFO L225 Difference]: With dead ends: 177 [2021-10-13 07:13:29,950 INFO L226 Difference]: Without dead ends: 91 [2021-10-13 07:13:29,954 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:13:29,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-10-13 07:13:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2021-10-13 07:13:30,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 63 states have (on average 1.7619047619047619) internal successors, (111), 90 states have internal predecessors, (111), 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) [2021-10-13 07:13:30,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 111 transitions. [2021-10-13 07:13:30,016 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 111 transitions. Word has length 3 [2021-10-13 07:13:30,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:13:30,017 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 111 transitions. [2021-10-13 07:13:30,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) 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) [2021-10-13 07:13:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 111 transitions. [2021-10-13 07:13:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 07:13:30,017 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:13:30,018 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 07:13:30,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:13:30,018 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-13 07:13:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:13:30,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1509479545, now seen corresponding path program 1 times [2021-10-13 07:13:30,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:13:30,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713375989] [2021-10-13 07:13:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:13:30,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:13:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:13:30,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:13:30,137 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:13:30,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713375989] [2021-10-13 07:13:30,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713375989] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:13:30,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32210293] [2021-10-13 07:13:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:13:30,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:13:30,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:13:30,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:13:30,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:13:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:13:30,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:13:30,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:13:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:13:30,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:13:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:13:30,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32210293] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:13:30,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [346934630] [2021-10-13 07:13:30,441 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-13 07:13:30,442 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:13:30,450 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:13:30,455 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:13:30,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:13:30,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:30,536 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:13:30,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:30,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-13 07:13:30,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:13:30,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:30,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-10-13 07:13:30,541 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:13:30,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:30,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-10-13 07:13:30,552 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:13:30,555 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:30,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-10-13 07:13:30,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:13:30,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:30,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-10-13 07:13:30,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 784 [2021-10-13 07:13:30,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:30,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:13:31,818 INFO L244 Elim1Store]: Index analysis took 521 ms [2021-10-13 07:13:32,743 INFO L354 Elim1Store]: treesize reduction 1129, result has 4.3 percent of original size [2021-10-13 07:13:32,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 39 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 60 case distinctions, treesize of input 263 treesize of output 262 [2021-10-13 07:13:32,757 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:32,800 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-10-13 07:13:32,811 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:32,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-10-13 07:13:32,823 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:13:32,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:13:32,964 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:32,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:13:33,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 666 [2021-10-13 07:13:33,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:13:33,029 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:777, output treesize:666 [2021-10-13 07:13:33,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:13:33,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:13:33,255 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_27| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:13:33,258 INFO L168 Benchmark]: Toolchain (without parser) took 7310.58 ms. Allocated memory was 83.9 MB in the beginning and 136.3 MB in the end (delta: 52.4 MB). Free memory was 46.8 MB in the beginning and 56.7 MB in the end (delta: -10.0 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:13:33,259 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 62.6 MB in the beginning and 62.6 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:13:33,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1372.17 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 46.5 MB in the beginning and 72.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:13:33,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.48 ms. Allocated memory is still 102.8 MB. Free memory was 72.5 MB in the beginning and 68.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:13:33,261 INFO L168 Benchmark]: Boogie Preprocessor took 86.26 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 64.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:13:33,261 INFO L168 Benchmark]: RCFGBuilder took 1612.15 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 64.6 MB in the beginning and 93.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:13:33,262 INFO L168 Benchmark]: TraceAbstraction took 4079.61 ms. Allocated memory is still 136.3 MB. Free memory was 92.8 MB in the beginning and 56.7 MB in the end (delta: 36.0 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:13:33,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 62.6 MB in the beginning and 62.6 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1372.17 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 46.5 MB in the beginning and 72.5 MB in the end (delta: -25.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 152.48 ms. Allocated memory is still 102.8 MB. Free memory was 72.5 MB in the beginning and 68.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.26 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 64.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1612.15 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 64.6 MB in the beginning and 93.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4079.61 ms. Allocated memory is still 136.3 MB. Free memory was 92.8 MB in the beginning and 56.7 MB in the end (delta: 36.0 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_27| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_27|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:13:33,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610c22d4-a8bf-4d86-bf01-aadc23301331/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...