./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifeqn1f.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/ifeqn1f.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 8d91257773214a4dabdd84060376021903a7c216 ....................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:50:01,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:50:01,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:50:01,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:50:01,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:50:01,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:50:01,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:50:01,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:50:01,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:50:01,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:50:01,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:50:01,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:50:01,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:50:01,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:50:01,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:50:01,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:50:01,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:50:01,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:50:01,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:50:01,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:50:01,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:50:01,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:50:01,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:50:01,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:50:01,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:50:01,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:50:01,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:50:01,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:50:01,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:50:01,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:50:01,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:50:01,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:50:01,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:50:01,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:50:01,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:50:01,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:50:01,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:50:01,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:50:01,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:50:01,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:50:01,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:50:01,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 20:50:01,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:50:01,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:50:01,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:50:01,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:50:01,259 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:50:01,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:50:01,260 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:50:01,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:50:01,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:50:01,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:50:01,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 20:50:01,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 20:50:01,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 20:50:01,262 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:50:01,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:50:01,262 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:50:01,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 20:50:01,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:50:01,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:50:01,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 20:50:01,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 20:50:01,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 20:50:01,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:50:01,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 20:50:01,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 20:50:01,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:50:01,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 20:50:01,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 20:50:01,266 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 -> 8d91257773214a4dabdd84060376021903a7c216 [2019-11-19 20:50:01,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:50:01,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:50:01,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:50:01,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:50:01,589 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:50:01,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-11-19 20:50:01,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22003c84/3802d86e20a349ad953e3f5bd9421470/FLAG7cc3edb86 [2019-11-19 20:50:02,120 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:50:02,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn1f.c [2019-11-19 20:50:02,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22003c84/3802d86e20a349ad953e3f5bd9421470/FLAG7cc3edb86 [2019-11-19 20:50:02,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22003c84/3802d86e20a349ad953e3f5bd9421470 [2019-11-19 20:50:02,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:50:02,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:50:02,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:50:02,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:50:02,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:50:02,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a076d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02, skipping insertion in model container [2019-11-19 20:50:02,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,495 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:50:02,515 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:50:02,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:50:02,744 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:50:02,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:50:02,787 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:50:02,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02 WrapperNode [2019-11-19 20:50:02,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:50:02,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:50:02,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:50:02,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:50:02,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:50:02,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:50:02,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:50:02,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:50:02,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (1/1) ... [2019-11-19 20:50:02,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:50:02,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:50:02,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:50:02,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:50:02,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (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 20:50:02,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:50:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-19 20:50:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:50:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:50:02,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:50:03,218 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:50:03,218 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 20:50:03,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:03 BoogieIcfgContainer [2019-11-19 20:50:03,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:50:03,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 20:50:03,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 20:50:03,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 20:50:03,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:50:02" (1/3) ... [2019-11-19 20:50:03,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e5a451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:50:03, skipping insertion in model container [2019-11-19 20:50:03,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:50:02" (2/3) ... [2019-11-19 20:50:03,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e5a451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:50:03, skipping insertion in model container [2019-11-19 20:50:03,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:03" (3/3) ... [2019-11-19 20:50:03,230 INFO L109 eAbstractionObserver]: Analyzing ICFG ifeqn1f.c [2019-11-19 20:50:03,242 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 20:50:03,250 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 20:50:03,279 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 20:50:03,328 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 20:50:03,328 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 20:50:03,329 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 20:50:03,329 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:50:03,329 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:50:03,330 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 20:50:03,330 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:50:03,330 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 20:50:03,349 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-19 20:50:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 20:50:03,357 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:03,358 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:03,359 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:03,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:03,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1201566748, now seen corresponding path program 1 times [2019-11-19 20:50:03,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:03,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090404608] [2019-11-19 20:50:03,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:03,504 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 20:50:03,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090404608] [2019-11-19 20:50:03,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:03,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 20:50:03,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841511456] [2019-11-19 20:50:03,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 20:50:03,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:03,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 20:50:03,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 20:50:03,526 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-19 20:50:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:03,542 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2019-11-19 20:50:03,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 20:50:03,544 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-19 20:50:03,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:03,555 INFO L225 Difference]: With dead ends: 36 [2019-11-19 20:50:03,555 INFO L226 Difference]: Without dead ends: 17 [2019-11-19 20:50:03,559 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 20:50:03,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-19 20:50:03,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 20:50:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 20:50:03,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-19 20:50:03,597 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-11-19 20:50:03,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:03,598 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-19 20:50:03,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 20:50:03,598 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-19 20:50:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 20:50:03,599 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:03,599 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:03,600 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:03,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:03,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1920794649, now seen corresponding path program 1 times [2019-11-19 20:50:03,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:03,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855815862] [2019-11-19 20:50:03,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:03,620 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:03,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780204795] [2019-11-19 20:50:03,621 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 20:50:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:03,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 20:50:03,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:50:03,773 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 20:50:03,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855815862] [2019-11-19 20:50:03,774 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 20:50:03,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780204795] [2019-11-19 20:50:03,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:03,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:50:03,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561124699] [2019-11-19 20:50:03,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 20:50:03,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:03,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:50:03,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:50:03,782 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-11-19 20:50:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:03,844 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2019-11-19 20:50:03,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:50:03,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-19 20:50:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:03,845 INFO L225 Difference]: With dead ends: 31 [2019-11-19 20:50:03,846 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 20:50:03,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 20:50:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 20:50:03,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2019-11-19 20:50:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 20:50:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-19 20:50:03,852 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-19 20:50:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:03,853 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-19 20:50:03,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 20:50:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-19 20:50:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 20:50:03,854 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:03,854 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:04,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:04,060 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:04,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1948223762, now seen corresponding path program 1 times [2019-11-19 20:50:04,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:04,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899821417] [2019-11-19 20:50:04,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:04,088 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:04,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645462037] [2019-11-19 20:50:04,093 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 20:50:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:50:04,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-19 20:50:04,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:50:04,195 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 20:50:04,195 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899821417] [2019-11-19 20:50:04,195 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-19 20:50:04,196 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645462037] [2019-11-19 20:50:04,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:50:04,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:50:04,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580024446] [2019-11-19 20:50:04,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 20:50:04,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:50:04,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:50:04,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:50:04,201 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 4 states. [2019-11-19 20:50:04,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:50:04,265 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-19 20:50:04,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:50:04,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-19 20:50:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 20:50:04,267 INFO L225 Difference]: With dead ends: 36 [2019-11-19 20:50:04,267 INFO L226 Difference]: Without dead ends: 29 [2019-11-19 20:50:04,268 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 20:50:04,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-19 20:50:04,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-11-19 20:50:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-19 20:50:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-11-19 20:50:04,274 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2019-11-19 20:50:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 20:50:04,275 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-11-19 20:50:04,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 20:50:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-11-19 20:50:04,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 20:50:04,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 20:50:04,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:50:04,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:04,488 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 20:50:04,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:50:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1326513248, now seen corresponding path program 1 times [2019-11-19 20:50:04,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:50:04,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288355641] [2019-11-19 20:50:04,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:50:04,506 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-19 20:50:04,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062743112] [2019-11-19 20:50:04,510 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 20:50:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:50:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:50:04,598 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:50:04,598 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 20:50:04,802 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:50:04,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:50:04 BoogieIcfgContainer [2019-11-19 20:50:04,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 20:50:04,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:50:04,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:50:04,840 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:50:04,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:50:03" (3/4) ... [2019-11-19 20:50:04,843 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 20:50:04,902 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:50:04,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:50:04,905 INFO L168 Benchmark]: Toolchain (without parser) took 2427.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -69.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:04,906 INFO L168 Benchmark]: CDTParser took 0.25 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 20:50:04,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.42 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:04,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:04,909 INFO L168 Benchmark]: Boogie Preprocessor took 33.73 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. [2019-11-19 20:50:04,910 INFO L168 Benchmark]: RCFGBuilder took 293.64 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:04,910 INFO L168 Benchmark]: TraceAbstraction took 1617.89 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: 76.8 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:50:04,911 INFO L168 Benchmark]: Witness Printer took 62.63 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. [2019-11-19 20:50:04,915 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 310.42 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 103.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 293.64 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1617.89 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: 76.8 MB). Peak memory consumption was 76.8 MB. Max. memory is 11.5 GB. * Witness Printer took 62.63 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 *a = malloc(sizeof(long long)*N); [L24] long long *b = malloc(sizeof(long long)*N); [L26] i=0 VAL [N=1] [L26] COND TRUE i