./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ss2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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/array-fpi/ss2f.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 64cf37aa63047e3fef81006f69e9718542642f9f ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 15:37:27,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:37:28,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:37:28,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:37:28,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:37:28,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:37:28,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:37:28,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:37:28,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:37:28,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:37:28,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:37:28,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:37:28,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:37:28,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:37:28,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:37:28,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:37:28,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:37:28,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:37:28,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:37:28,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:37:28,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:37:28,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:37:28,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:37:28,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:37:28,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:37:28,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:37:28,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:37:28,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:37:28,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:37:28,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:37:28,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:37:28,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:37:28,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:37:28,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:37:28,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:37:28,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:37:28,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:37:28,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:37:28,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:37:28,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:37:28,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:37:28,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:37:28,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:37:28,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:37:28,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:37:28,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:37:28,122 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:37:28,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:37:28,122 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:37:28,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:37:28,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:37:28,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:37:28,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:37:28,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:37:28,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:37:28,125 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:37:28,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:37:28,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:37:28,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:37:28,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:37:28,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:37:28,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:37:28,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:37:28,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:37:28,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:37:28,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:37:28,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:37:28,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:37:28,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:37:28,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:37:28,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:37:28,128 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 -> 64cf37aa63047e3fef81006f69e9718542642f9f [2019-11-28 15:37:28,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:37:28,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:37:28,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:37:28,474 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:37:28,475 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:37:28,476 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss2f.c [2019-11-28 15:37:28,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b93e691/a9c4c5acdcee4631929baaaaece0ff59/FLAGfff88755e [2019-11-28 15:37:29,034 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:37:29,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss2f.c [2019-11-28 15:37:29,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b93e691/a9c4c5acdcee4631929baaaaece0ff59/FLAGfff88755e [2019-11-28 15:37:29,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b93e691/a9c4c5acdcee4631929baaaaece0ff59 [2019-11-28 15:37:29,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:37:29,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:37:29,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:29,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:37:29,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:37:29,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c68b475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29, skipping insertion in model container [2019-11-28 15:37:29,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:37:29,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:37:29,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:29,689 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:37:29,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:29,787 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:37:29,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29 WrapperNode [2019-11-28 15:37:29,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:29,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:29,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:37:29,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:37:29,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:29,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:37:29,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:37:29,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:37:29,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (1/1) ... [2019-11-28 15:37:29,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:37:29,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:37:29,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:37:29,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:37:29,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (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 [2019-11-28 15:37:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 15:37:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:37:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:37:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:37:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:37:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:37:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 15:37:30,285 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:37:30,285 INFO L287 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-28 15:37:30,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:30 BoogieIcfgContainer [2019-11-28 15:37:30,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:37:30,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:37:30,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:37:30,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:37:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:37:29" (1/3) ... [2019-11-28 15:37:30,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf71beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:30, skipping insertion in model container [2019-11-28 15:37:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:29" (2/3) ... [2019-11-28 15:37:30,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf71beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:30, skipping insertion in model container [2019-11-28 15:37:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:30" (3/3) ... [2019-11-28 15:37:30,295 INFO L109 eAbstractionObserver]: Analyzing ICFG ss2f.c [2019-11-28 15:37:30,305 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:37:30,313 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:37:30,325 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:37:30,348 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:37:30,348 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:37:30,348 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:37:30,348 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:37:30,348 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:37:30,349 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:37:30,349 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:37:30,349 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:37:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-28 15:37:30,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 15:37:30,375 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:30,376 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:30,377 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:30,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1755305885, now seen corresponding path program 1 times [2019-11-28 15:37:30,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:30,396 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474423981] [2019-11-28 15:37:30,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:37:30,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474423981] [2019-11-28 15:37:30,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:30,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:37:30,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726694741] [2019-11-28 15:37:30,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:37:30,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:30,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:37:30,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:30,547 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-11-28 15:37:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:30,564 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2019-11-28 15:37:30,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:37:30,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-28 15:37:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:30,576 INFO L225 Difference]: With dead ends: 57 [2019-11-28 15:37:30,576 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 15:37:30,579 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 15:37:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-28 15:37:30,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 15:37:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-28 15:37:30,612 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 18 [2019-11-28 15:37:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:30,613 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-28 15:37:30,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:37:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-11-28 15:37:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 15:37:30,614 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:30,614 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:30,614 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:30,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:30,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1234619631, now seen corresponding path program 1 times [2019-11-28 15:37:30,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:30,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852283121] [2019-11-28 15:37:30,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:30,638 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:30,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390577711] [2019-11-28 15:37:30,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:30,727 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:37:30,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:37:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:37:30,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852283121] [2019-11-28 15:37:30,768 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:37:30,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390577711] [2019-11-28 15:37:30,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:30,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:37:30,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714125097] [2019-11-28 15:37:30,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:37:30,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:30,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:37:30,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:30,772 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2019-11-28 15:37:30,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:30,861 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-28 15:37:30,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:37:30,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-28 15:37:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:30,863 INFO L225 Difference]: With dead ends: 51 [2019-11-28 15:37:30,863 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 15:37:30,864 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:30,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 15:37:30,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-11-28 15:37:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-28 15:37:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2019-11-28 15:37:30,870 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 18 [2019-11-28 15:37:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:30,870 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2019-11-28 15:37:30,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:37:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2019-11-28 15:37:30,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-28 15:37:30,871 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:30,872 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:31,082 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:31,083 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:31,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:31,084 INFO L82 PathProgramCache]: Analyzing trace with hash -654530065, now seen corresponding path program 1 times [2019-11-28 15:37:31,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:31,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27194356] [2019-11-28 15:37:31,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:31,117 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:31,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843305694] [2019-11-28 15:37:31,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:31,199 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:37:31,202 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:37:31,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 15:37:31,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27194356] [2019-11-28 15:37:31,224 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:37:31,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843305694] [2019-11-28 15:37:31,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:31,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:37:31,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112178954] [2019-11-28 15:37:31,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:37:31,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:31,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:37:31,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:37:31,231 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 4 states. [2019-11-28 15:37:31,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:31,366 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2019-11-28 15:37:31,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:37:31,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-11-28 15:37:31,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:31,369 INFO L225 Difference]: With dead ends: 64 [2019-11-28 15:37:31,369 INFO L226 Difference]: Without dead ends: 45 [2019-11-28 15:37:31,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:37:31,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-28 15:37:31,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2019-11-28 15:37:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-28 15:37:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2019-11-28 15:37:31,384 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 20 [2019-11-28 15:37:31,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:31,384 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-11-28 15:37:31,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:37:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2019-11-28 15:37:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-28 15:37:31,386 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:31,386 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:31,596 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:31,596 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:31,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1132298245, now seen corresponding path program 1 times [2019-11-28 15:37:31,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:31,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55059502] [2019-11-28 15:37:31,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:31,629 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:31,630 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305092271] [2019-11-28 15:37:31,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:31,777 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:37:31,778 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:37:31,981 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:32,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:37:32 BoogieIcfgContainer [2019-11-28 15:37:32,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:37:32,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:37:32,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:37:32,031 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:37:32,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:30" (3/4) ... [2019-11-28 15:37:32,034 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:37:32,095 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:37:32,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:37:32,098 INFO L168 Benchmark]: Toolchain (without parser) took 2674.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -44.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:32,099 INFO L168 Benchmark]: CDTParser took 0.86 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. [2019-11-28 15:37:32,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:32,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.55 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. [2019-11-28 15:37:32,101 INFO L168 Benchmark]: Boogie Preprocessor took 44.09 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. [2019-11-28 15:37:32,102 INFO L168 Benchmark]: RCFGBuilder took 407.09 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:32,102 INFO L168 Benchmark]: TraceAbstraction took 1742.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:32,103 INFO L168 Benchmark]: Witness Printer took 64.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:32,107 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 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 364.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.55 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. * Boogie Preprocessor took 44.09 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. * RCFGBuilder took 407.09 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1742.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 11.5 GB. * Witness Printer took 64.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] long long *a = malloc(sizeof(long long)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i