./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 678e0110 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 0.1.24-678e011 [2019-11-19 20:50:38,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:50:38,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:50:38,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:50:38,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:50:38,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:50:38,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:50:38,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:50:38,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:50:38,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:50:38,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:50:38,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:50:38,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:50:38,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:50:38,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:50:38,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:50:38,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:50:38,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:50:38,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:50:38,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:50:38,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:50:38,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:50:38,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:50:38,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:50:38,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:50:38,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:50:38,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:50:38,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:50:38,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:50:38,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:50:38,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:50:38,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:50:38,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:50:38,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:50:38,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:50:38,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:50:38,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:50:38,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:50:38,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:50:38,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:50:38,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:50:38,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 20:50:38,352 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:50:38,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:50:38,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:50:38,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:50:38,355 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:50:38,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:50:38,356 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:50:38,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:50:38,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:50:38,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:50:38,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 20:50:38,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 20:50:38,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 20:50:38,359 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:50:38,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:50:38,359 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:50:38,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 20:50:38,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:50:38,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:50:38,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 20:50:38,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 20:50:38,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 20:50:38,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:50:38,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 20:50:38,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 20:50:38,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:50:38,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 20:50:38,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 20:50:38,363 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 [2019-11-19 20:50:38,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:50:38,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:50:38,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:50:38,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:50:38,689 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:50:38,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss2f.c [2019-11-19 20:50:38,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee077cd4/882dcce62d364a5a9e32c98b8586d2d0/FLAGd4b0d1980 [2019-11-19 20:50:39,218 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:50:39,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss2f.c [2019-11-19 20:50:39,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee077cd4/882dcce62d364a5a9e32c98b8586d2d0/FLAGd4b0d1980 [2019-11-19 20:50:39,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee077cd4/882dcce62d364a5a9e32c98b8586d2d0 [2019-11-19 20:50:39,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:50:39,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:50:39,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:50:39,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:50:39,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:50:39,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12eac16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39, skipping insertion in model container [2019-11-19 20:50:39,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,609 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:50:39,629 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:50:39,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:50:39,825 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:50:39,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:50:39,866 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:50:39,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39 WrapperNode [2019-11-19 20:50:39,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:50:39,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:50:39,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:50:39,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:50:39,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:50:39,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:50:39,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:50:39,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:50:39,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:39,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:40,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:40,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:40,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (1/1) ... [2019-11-19 20:50:40,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:50:40,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:50:40,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:50:40,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:50:40,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (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 [2019-11-19 20:50:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:50:40,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:50:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 20:50:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:50:40,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:50:40,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:50:40,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 20:50:40,375 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:50:40,375 INFO L285 CfgBuilder]: Removed 13 assume(true) statements. [2019-11-19 20:50:40,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:40 BoogieIcfgContainer [2019-11-19 20:50:40,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:50:40,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 20:50:40,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 20:50:40,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 20:50:40,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:50:39" (1/3) ... [2019-11-19 20:50:40,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e04157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:50:40, skipping insertion in model container [2019-11-19 20:50:40,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:39" (2/3) ... [2019-11-19 20:50:40,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e04157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:50:40, skipping insertion in model container [2019-11-19 20:50:40,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:40" (3/3) ... [2019-11-19 20:50:40,390 INFO L109 eAbstractionObserver]: Analyzing ICFG ss2f.c [2019-11-19 20:50:40,404 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 20:50:40,411 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 20:50:40,426 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 20:50:40,461 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 20:50:40,461 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 20:50:40,461 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 20:50:40,462 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:50:40,462 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:50:40,462 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 20:50:40,463 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:50:40,463 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 20:50:40,481 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-19 20:50:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 20:50:40,496 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:40,511 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:40,512 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:40,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1755305885, now seen corresponding path program 1 times [2019-11-19 20:50:40,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:40,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012484818] [2019-11-19 20:50:40,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:50:40,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012484818] [2019-11-19 20:50:40,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:40,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 20:50:40,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971228191] [2019-11-19 20:50:40,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 20:50:40,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:40,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 20:50:40,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 20:50:40,673 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-11-19 20:50:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:40,691 INFO L93 Difference]: Finished difference Result 57 states and 84 transitions. [2019-11-19 20:50:40,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 20:50:40,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-19 20:50:40,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:40,703 INFO L225 Difference]: With dead ends: 57 [2019-11-19 20:50:40,704 INFO L226 Difference]: Without dead ends: 27 [2019-11-19 20:50:40,708 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 [2019-11-19 20:50:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-19 20:50:40,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-19 20:50:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-19 20:50:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-19 20:50:40,751 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 18 [2019-11-19 20:50:40,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:40,751 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-19 20:50:40,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 20:50:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-11-19 20:50:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 20:50:40,753 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:40,753 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:40,753 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:40,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1234619631, now seen corresponding path program 1 times [2019-11-19 20:50:40,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:40,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952675592] [2019-11-19 20:50:40,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:40,781 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:40,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857616140] [2019-11-19 20:50:40,781 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 [2019-11-19 20:50:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:40,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 20:50:40,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:50:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:50:40,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952675592] [2019-11-19 20:50:40,953 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 20:50:40,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857616140] [2019-11-19 20:50:40,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:40,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:50:40,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624180877] [2019-11-19 20:50:40,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 20:50:40,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:40,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:50:40,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:50:40,961 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2019-11-19 20:50:41,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:41,062 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-19 20:50:41,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:50:41,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-19 20:50:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:41,063 INFO L225 Difference]: With dead ends: 51 [2019-11-19 20:50:41,063 INFO L226 Difference]: Without dead ends: 29 [2019-11-19 20:50:41,065 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 [2019-11-19 20:50:41,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-19 20:50:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-11-19 20:50:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-19 20:50:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2019-11-19 20:50:41,071 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 18 [2019-11-19 20:50:41,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:41,072 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2019-11-19 20:50:41,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 20:50:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2019-11-19 20:50:41,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-19 20:50:41,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:41,073 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] [2019-11-19 20:50:41,277 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:41,278 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:41,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:41,279 INFO L82 PathProgramCache]: Analyzing trace with hash -654530065, now seen corresponding path program 1 times [2019-11-19 20:50:41,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:41,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742276165] [2019-11-19 20:50:41,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:41,310 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:41,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118481667] [2019-11-19 20:50:41,315 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 [2019-11-19 20:50:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:41,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 20:50:41,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:50:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:50:41,418 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742276165] [2019-11-19 20:50:41,418 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 20:50:41,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118481667] [2019-11-19 20:50:41,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:41,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:50:41,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204071894] [2019-11-19 20:50:41,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 20:50:41,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:41,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:50:41,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:50:41,422 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 4 states. [2019-11-19 20:50:41,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:41,562 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2019-11-19 20:50:41,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:50:41,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-11-19 20:50:41,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:41,565 INFO L225 Difference]: With dead ends: 64 [2019-11-19 20:50:41,566 INFO L226 Difference]: Without dead ends: 45 [2019-11-19 20:50:41,567 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 [2019-11-19 20:50:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-19 20:50:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2019-11-19 20:50:41,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-19 20:50:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2019-11-19 20:50:41,583 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 20 [2019-11-19 20:50:41,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:41,584 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-11-19 20:50:41,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 20:50:41,584 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2019-11-19 20:50:41,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 20:50:41,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:41,587 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] [2019-11-19 20:50:41,799 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:41,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:41,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:41,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1132298245, now seen corresponding path program 1 times [2019-11-19 20:50:41,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:41,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718796096] [2019-11-19 20:50:41,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:41,849 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:41,850 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553039145] [2019-11-19 20:50:41,852 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 [2019-11-19 20:50:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:50:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:50:41,982 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:50:41,982 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 20:50:42,191 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:42,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:50:42 BoogieIcfgContainer [2019-11-19 20:50:42,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 20:50:42,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:50:42,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:50:42,257 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:50:42,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:40" (3/4) ... [2019-11-19 20:50:42,262 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 20:50:42,343 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:50:42,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:50:42,346 INFO L168 Benchmark]: Toolchain (without parser) took 2752.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -63.3 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:42,346 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-19 20:50:42,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:42,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:42,348 INFO L168 Benchmark]: Boogie Preprocessor took 30.38 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. [2019-11-19 20:50:42,349 INFO L168 Benchmark]: RCFGBuilder took 365.35 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:42,350 INFO L168 Benchmark]: TraceAbstraction took 1876.58 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: 89.4 MB). Peak memory consumption was 89.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:42,350 INFO L168 Benchmark]: Witness Printer took 86.69 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. [2019-11-19 20:50:42,354 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 273.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 114.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.38 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 365.35 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1876.58 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: 89.4 MB). Peak memory consumption was 89.4 MB. Max. memory is 11.5 GB. * Witness Printer took 86.69 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