./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test26-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test26-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0241b4e27eeca1767f68b7bd93a5fe7104b62d9d .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:53:25,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:53:25,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:53:25,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:53:25,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:53:25,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:53:25,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:53:25,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:53:25,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:53:25,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:53:25,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:53:25,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:53:25,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:53:25,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:53:25,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:53:25,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:53:25,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:53:25,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:53:25,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:53:25,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:53:25,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:53:25,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:53:25,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:53:25,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:53:25,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:53:25,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:53:25,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:53:25,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:53:25,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:53:25,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:53:25,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:53:25,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:53:25,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:53:25,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:53:25,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:53:25,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:53:25,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:53:25,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:53:25,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:53:25,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:53:25,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:53:25,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:53:25,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:53:25,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:53:25,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:53:25,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:53:25,413 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:53:25,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:53:25,416 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:53:25,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:53:25,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:53:25,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:53:25,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:53:25,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:53:25,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:53:25,418 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:53:25,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:53:25,419 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:53:25,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:53:25,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:53:25,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:53:25,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:53:25,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:53:25,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:53:25,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:53:25,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:53:25,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:53:25,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:53:25,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:53:25,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:53:25,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0241b4e27eeca1767f68b7bd93a5fe7104b62d9d [2019-11-27 23:53:25,745 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:53:25,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:53:25,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:53:25,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:53:25,768 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:53:25,771 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test26-1.c [2019-11-27 23:53:25,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c91d59c/0cae147af3b0494095d8fc96c6d33ac8/FLAG367e60d8c [2019-11-27 23:53:26,299 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:53:26,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test26-1.c [2019-11-27 23:53:26,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c91d59c/0cae147af3b0494095d8fc96c6d33ac8/FLAG367e60d8c [2019-11-27 23:53:26,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c91d59c/0cae147af3b0494095d8fc96c6d33ac8 [2019-11-27 23:53:26,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:53:26,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:53:26,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:53:26,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:53:26,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:53:26,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:26,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4537b54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26, skipping insertion in model container [2019-11-27 23:53:26,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:26,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:53:26,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:53:26,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:53:26,890 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:53:26,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:53:26,923 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:53:26,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26 WrapperNode [2019-11-27 23:53:26,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:53:26,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:53:26,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:53:26,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:53:26,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:53:27,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:53:27,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:53:27,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:53:27,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... [2019-11-27 23:53:27,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:53:27,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:53:27,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:53:27,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:53:27,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:53:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:53:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:53:27,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:53:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:53:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-27 23:53:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:53:27,297 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:53:27,297 INFO L297 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-27 23:53:27,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:27 BoogieIcfgContainer [2019-11-27 23:53:27,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:53:27,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:53:27,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:53:27,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:53:27,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:53:26" (1/3) ... [2019-11-27 23:53:27,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca0a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:53:27, skipping insertion in model container [2019-11-27 23:53:27,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:53:26" (2/3) ... [2019-11-27 23:53:27,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca0a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:53:27, skipping insertion in model container [2019-11-27 23:53:27,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:27" (3/3) ... [2019-11-27 23:53:27,308 INFO L109 eAbstractionObserver]: Analyzing ICFG test26-1.c [2019-11-27 23:53:27,322 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:53:27,331 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:53:27,349 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:53:27,374 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:53:27,375 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:53:27,375 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:53:27,375 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:53:27,375 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:53:27,375 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:53:27,376 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:53:27,376 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:53:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-27 23:53:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-27 23:53:27,395 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:53:27,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-27 23:53:27,397 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:53:27,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:53:27,403 INFO L82 PathProgramCache]: Analyzing trace with hash 28692805, now seen corresponding path program 1 times [2019-11-27 23:53:27,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:53:27,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571239355] [2019-11-27 23:53:27,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:53:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:53:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:53:27,641 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571239355] [2019-11-27 23:53:27,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:53:27,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 23:53:27,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341567857] [2019-11-27 23:53:27,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:53:27,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:53:27,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:53:27,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:53:27,668 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-27 23:53:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:53:27,746 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-27 23:53:27,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:53:27,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-27 23:53:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:53:27,757 INFO L225 Difference]: With dead ends: 12 [2019-11-27 23:53:27,757 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:53:27,761 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:53:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:53:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:53:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:53:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:53:27,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-27 23:53:27,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:53:27,807 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:53:27,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:53:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:53:27,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:53:27,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:53:27,833 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:53:27,833 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:53:27,833 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:53:27,833 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:53:27,834 INFO L242 CegarLoopResult]: At program point L25(lines 12 26) the Hoare annotation is: (and (= |~#global~0.offset| ULTIMATE.start_main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| ULTIMATE.start_main_~pd~0.base) ULTIMATE.start_main_~pd~0.offset))) [2019-11-27 23:53:27,834 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2019-11-27 23:53:27,834 INFO L242 CegarLoopResult]: At program point L19(lines 13 26) the Hoare annotation is: false [2019-11-27 23:53:27,834 INFO L246 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2019-11-27 23:53:27,835 INFO L246 CegarLoopResult]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-27 23:53:27,848 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:53:27 BoogieIcfgContainer [2019-11-27 23:53:27,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:53:27,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:53:27,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:53:27,863 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:53:27,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:53:27" (3/4) ... [2019-11-27 23:53:27,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:53:27,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-27 23:53:27,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 23:53:27,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:53:27,927 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:53:27,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:53:27,930 INFO L168 Benchmark]: Toolchain (without parser) took 1257.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -120.6 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:27,930 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:27,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.63 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:27,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:27,933 INFO L168 Benchmark]: Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:27,934 INFO L168 Benchmark]: RCFGBuilder took 249.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:27,935 INFO L168 Benchmark]: TraceAbstraction took 561.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:53:27,935 INFO L168 Benchmark]: Witness Printer took 65.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:53:27,940 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.63 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 561.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 12]: Loop Invariant [2019-11-27 23:53:27,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-27 23:53:27,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: global == pd && unknown-#memory_int-unknown[global][global + 4] == unknown-#memory_int-unknown[pd][pd] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...