./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/res2of.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/res2of.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 4fbfae688002978f573d529f096837ca8e206a82 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:35:51,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:35:51,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:35:51,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:35:51,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:35:51,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:35:51,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:35:51,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:35:51,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:35:51,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:35:51,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:35:51,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:35:51,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:35:51,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:35:51,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:35:51,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:35:51,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:35:51,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:35:51,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:35:51,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:35:51,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:35:51,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:35:51,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:35:51,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:35:51,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:35:51,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:35:51,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:35:51,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:35:51,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:35:51,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:35:51,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:35:51,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:35:51,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:35:51,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:35:51,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:35:51,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:35:51,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:35:51,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:35:51,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:35:51,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:35:51,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:35:51,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:35:51,978 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:35:51,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:35:51,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:35:51,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:35:51,980 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:35:51,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:35:51,981 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:35:51,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:35:51,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:35:51,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:35:51,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:35:51,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:35:51,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:35:51,982 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:35:51,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:35:51,983 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:35:51,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:35:51,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:35:51,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:35:51,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:35:51,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:35:51,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:35:51,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:35:51,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:35:51,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:35:51,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:35:51,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:35:51,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:35:51,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:35:51,986 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 -> 4fbfae688002978f573d529f096837ca8e206a82 [2019-11-28 15:35:52,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:35:52,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:35:52,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:35:52,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:35:52,295 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:35:52,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/res2of.c [2019-11-28 15:35:52,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c52659b/6d16f99bd26e4dee8c3d33cf0eec1ef5/FLAG5b02031bd [2019-11-28 15:35:52,862 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:35:52,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res2of.c [2019-11-28 15:35:52,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c52659b/6d16f99bd26e4dee8c3d33cf0eec1ef5/FLAG5b02031bd [2019-11-28 15:35:53,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c52659b/6d16f99bd26e4dee8c3d33cf0eec1ef5 [2019-11-28 15:35:53,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:35:53,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:35:53,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:35:53,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:35:53,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:35:53,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc03040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53, skipping insertion in model container [2019-11-28 15:35:53,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:35:53,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:35:53,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:35:53,481 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:35:53,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:35:53,519 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:35:53,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53 WrapperNode [2019-11-28 15:35:53,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:35:53,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:35:53,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:35:53,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:35:53,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:35:53,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:35:53,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:35:53,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:35:53,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (1/1) ... [2019-11-28 15:35:53,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:35:53,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:35:53,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:35:53,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:35:53,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (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 15:35:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 15:35:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:35:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:35:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:35:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:35:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:35:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 15:35:54,055 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:35:54,056 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 15:35:54,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:54 BoogieIcfgContainer [2019-11-28 15:35:54,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:35:54,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:35:54,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:35:54,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:35:54,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:35:53" (1/3) ... [2019-11-28 15:35:54,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd32680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:35:54, skipping insertion in model container [2019-11-28 15:35:54,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:53" (2/3) ... [2019-11-28 15:35:54,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd32680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:35:54, skipping insertion in model container [2019-11-28 15:35:54,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:54" (3/3) ... [2019-11-28 15:35:54,067 INFO L109 eAbstractionObserver]: Analyzing ICFG res2of.c [2019-11-28 15:35:54,077 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:35:54,085 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:35:54,097 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:35:54,121 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:35:54,121 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:35:54,121 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:35:54,122 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:35:54,122 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:35:54,122 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:35:54,122 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:35:54,122 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:35:54,137 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-28 15:35:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 15:35:54,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:54,145 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:54,145 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:54,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:54,150 INFO L82 PathProgramCache]: Analyzing trace with hash -81924726, now seen corresponding path program 1 times [2019-11-28 15:35:54,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:54,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375966317] [2019-11-28 15:35:54,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:54,292 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 15:35:54,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375966317] [2019-11-28 15:35:54,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:54,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:35:54,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142902761] [2019-11-28 15:35:54,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:35:54,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:54,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:35:54,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:35:54,313 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-28 15:35:54,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:54,329 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-11-28 15:35:54,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:35:54,330 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-28 15:35:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:54,340 INFO L225 Difference]: With dead ends: 51 [2019-11-28 15:35:54,341 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 15:35:54,344 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 15:35:54,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 15:35:54,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 15:35:54,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 15:35:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-11-28 15:35:54,377 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 17 [2019-11-28 15:35:54,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:54,378 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-11-28 15:35:54,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:35:54,378 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-11-28 15:35:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 15:35:54,379 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:54,379 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:54,380 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:54,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:54,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2118036586, now seen corresponding path program 1 times [2019-11-28 15:35:54,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:54,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217582378] [2019-11-28 15:35:54,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:54,523 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 15:35:54,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217582378] [2019-11-28 15:35:54,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:54,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:35:54,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260473433] [2019-11-28 15:35:54,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:35:54,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:54,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:35:54,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:35:54,530 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 4 states. [2019-11-28 15:35:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:54,653 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-11-28 15:35:54,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:35:54,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-28 15:35:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:54,656 INFO L225 Difference]: With dead ends: 39 [2019-11-28 15:35:54,656 INFO L226 Difference]: Without dead ends: 35 [2019-11-28 15:35:54,657 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 [2019-11-28 15:35:54,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-28 15:35:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-28 15:35:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 15:35:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2019-11-28 15:35:54,673 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 17 [2019-11-28 15:35:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:54,674 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2019-11-28 15:35:54,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:35:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2019-11-28 15:35:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 15:35:54,676 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:54,677 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:54,677 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:54,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:54,679 INFO L82 PathProgramCache]: Analyzing trace with hash 434573880, now seen corresponding path program 1 times [2019-11-28 15:35:54,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:54,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552954217] [2019-11-28 15:35:54,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:54,785 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 15:35:54,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552954217] [2019-11-28 15:35:54,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:54,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:35:54,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850301045] [2019-11-28 15:35:54,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:35:54,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:54,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:35:54,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:35:54,790 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 3 states. [2019-11-28 15:35:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:54,858 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2019-11-28 15:35:54,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:35:54,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-28 15:35:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:54,860 INFO L225 Difference]: With dead ends: 54 [2019-11-28 15:35:54,860 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 15:35:54,861 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 15:35:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 15:35:54,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-28 15:35:54,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 15:35:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-28 15:35:54,866 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 19 [2019-11-28 15:35:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:54,866 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-28 15:35:54,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:35:54,866 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-11-28 15:35:54,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 15:35:54,867 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:54,867 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:35:54,867 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:54,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:54,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1502906616, now seen corresponding path program 1 times [2019-11-28 15:35:54,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:54,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387128035] [2019-11-28 15:35:54,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:35:54,936 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 15:35:54,936 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387128035] [2019-11-28 15:35:54,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:35:54,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:35:54,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820936073] [2019-11-28 15:35:54,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:35:54,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:35:54,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:35:54,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:35:54,938 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2019-11-28 15:35:55,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:35:55,052 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-11-28 15:35:55,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:35:55,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-11-28 15:35:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:35:55,054 INFO L225 Difference]: With dead ends: 52 [2019-11-28 15:35:55,054 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 15:35:55,055 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 15:35:55,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 15:35:55,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-11-28 15:35:55,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 15:35:55,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-11-28 15:35:55,061 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2019-11-28 15:35:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:35:55,062 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-11-28 15:35:55,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:35:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-11-28 15:35:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-28 15:35:55,063 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:35:55,063 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] [2019-11-28 15:35:55,063 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:35:55,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:35:55,064 INFO L82 PathProgramCache]: Analyzing trace with hash 590714914, now seen corresponding path program 1 times [2019-11-28 15:35:55,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:35:55,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845008151] [2019-11-28 15:35:55,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:35:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:35:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:35:55,246 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:35:55,246 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:35:55,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:35:55 BoogieIcfgContainer [2019-11-28 15:35:55,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:35:55,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:35:55,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:35:55,302 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:35:55,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:54" (3/4) ... [2019-11-28 15:35:55,305 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:35:55,368 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:35:55,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:35:55,372 INFO L168 Benchmark]: Toolchain (without parser) took 2147.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -71.3 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:55,372 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:35:55,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.74 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:55,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:55,374 INFO L168 Benchmark]: Boogie Preprocessor took 34.66 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 15:35:55,375 INFO L168 Benchmark]: RCFGBuilder took 396.08 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:55,376 INFO L168 Benchmark]: TraceAbstraction took 1242.82 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: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:35:55,376 INFO L168 Benchmark]: Witness Printer took 67.16 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 15:35:55,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.74 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 105.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.66 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 396.08 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1242.82 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: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.16 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] int *a = malloc(sizeof(int)*N); [L25] int *b = malloc(sizeof(int)*N); [L26] int *c = malloc(sizeof(int)*N); [L28] sum[0] = 0 [L29] i=0 VAL [N=1] [L29] COND TRUE i