./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/modnf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/modnf.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 3fd3ccab48e72f12ae121d44bf0e0da956d21d01 ................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-30f4e4a [2019-11-27 22:30:18,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:30:18,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:30:18,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:30:18,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:30:18,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:30:18,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:30:18,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:30:18,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:30:18,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:30:18,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:30:18,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:30:18,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:30:18,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:30:18,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:30:18,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:30:18,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:30:18,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:30:18,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:30:18,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:30:18,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:30:18,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:30:18,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:30:18,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:30:18,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:30:18,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:30:18,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:30:18,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:30:18,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:30:18,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:30:18,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:30:18,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:30:18,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:30:18,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:30:18,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:30:18,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:30:18,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:30:18,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:30:18,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:30:18,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:30:18,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:30:18,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:30:18,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:30:18,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:30:18,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:30:18,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:30:18,212 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:30:18,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:30:18,213 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:30:18,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:30:18,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:30:18,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:30:18,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:30:18,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:30:18,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:30:18,215 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:30:18,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:30:18,215 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:30:18,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:30:18,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:30:18,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:30:18,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:30:18,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:30:18,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:30:18,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:30:18,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:30:18,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:30:18,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:30:18,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:30:18,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:30:18,219 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 -> 3fd3ccab48e72f12ae121d44bf0e0da956d21d01 [2019-11-27 22:30:18,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:30:18,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:30:18,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:30:18,536 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:30:18,537 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:30:18,537 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modnf.c [2019-11-27 22:30:18,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8194bd33/a473d0ef45db44379ad0a4f4a66fd9cc/FLAG504467b16 [2019-11-27 22:30:19,027 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:30:19,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modnf.c [2019-11-27 22:30:19,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8194bd33/a473d0ef45db44379ad0a4f4a66fd9cc/FLAG504467b16 [2019-11-27 22:30:19,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8194bd33/a473d0ef45db44379ad0a4f4a66fd9cc [2019-11-27 22:30:19,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:30:19,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:30:19,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:30:19,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:30:19,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:30:19,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fadf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19, skipping insertion in model container [2019-11-27 22:30:19,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:30:19,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:30:19,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:30:19,734 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:30:19,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:30:19,792 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:30:19,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19 WrapperNode [2019-11-27 22:30:19,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:30:19,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:30:19,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:30:19,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:30:19,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:30:19,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:30:19,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:30:19,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:30:19,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... [2019-11-27 22:30:19,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:30:19,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:30:19,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:30:19,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:30:19,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:30:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 22:30:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 22:30:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 22:30:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:30:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:30:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 22:30:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 22:30:20,284 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:30:20,284 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 22:30:20,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:30:20 BoogieIcfgContainer [2019-11-27 22:30:20,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:30:20,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:30:20,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:30:20,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:30:20,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:30:19" (1/3) ... [2019-11-27 22:30:20,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed5e994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:30:20, skipping insertion in model container [2019-11-27 22:30:20,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:30:19" (2/3) ... [2019-11-27 22:30:20,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed5e994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:30:20, skipping insertion in model container [2019-11-27 22:30:20,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:30:20" (3/3) ... [2019-11-27 22:30:20,296 INFO L109 eAbstractionObserver]: Analyzing ICFG modnf.c [2019-11-27 22:30:20,311 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:30:20,319 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:30:20,333 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:30:20,359 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:30:20,359 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:30:20,360 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:30:20,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:30:20,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:30:20,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:30:20,361 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:30:20,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:30:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-27 22:30:20,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 22:30:20,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:20,389 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:20,390 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:20,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:20,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1486647931, now seen corresponding path program 1 times [2019-11-27 22:30:20,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:20,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083537429] [2019-11-27 22:30:20,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:30:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:30:20,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083537429] [2019-11-27 22:30:20,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:30:20,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:30:20,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477515442] [2019-11-27 22:30:20,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 22:30:20,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:30:20,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 22:30:20,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:30:20,624 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-27 22:30:20,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:30:20,642 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2019-11-27 22:30:20,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 22:30:20,644 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 22:30:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:30:20,653 INFO L225 Difference]: With dead ends: 33 [2019-11-27 22:30:20,653 INFO L226 Difference]: Without dead ends: 15 [2019-11-27 22:30:20,657 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 [2019-11-27 22:30:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-27 22:30:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-27 22:30:20,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-27 22:30:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-27 22:30:20,696 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-11-27 22:30:20,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:30:20,697 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-27 22:30:20,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 22:30:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-27 22:30:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 22:30:20,699 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:20,699 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:20,700 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:20,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1772723449, now seen corresponding path program 1 times [2019-11-27 22:30:20,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:20,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207139422] [2019-11-27 22:30:20,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:30:20,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:30:20,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207139422] [2019-11-27 22:30:20,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:30:20,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:30:20,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258453734] [2019-11-27 22:30:20,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:30:20,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:30:20,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:30:20,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:30:20,784 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-27 22:30:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:30:20,899 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-11-27 22:30:20,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:30:20,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-27 22:30:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:30:20,901 INFO L225 Difference]: With dead ends: 27 [2019-11-27 22:30:20,901 INFO L226 Difference]: Without dead ends: 17 [2019-11-27 22:30:20,902 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 [2019-11-27 22:30:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-27 22:30:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-27 22:30:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-27 22:30:20,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-27 22:30:20,907 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2019-11-27 22:30:20,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:30:20,907 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-27 22:30:20,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:30:20,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-27 22:30:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 22:30:20,915 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:20,915 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:20,915 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:20,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:20,915 INFO L82 PathProgramCache]: Analyzing trace with hash 827904471, now seen corresponding path program 1 times [2019-11-27 22:30:20,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:20,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054562716] [2019-11-27 22:30:20,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:30:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-27 22:30:21,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054562716] [2019-11-27 22:30:21,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:30:21,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:30:21,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144680503] [2019-11-27 22:30:21,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:30:21,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:30:21,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:30:21,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:30:21,013 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-11-27 22:30:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:30:21,078 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-11-27 22:30:21,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:30:21,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-27 22:30:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:30:21,079 INFO L225 Difference]: With dead ends: 32 [2019-11-27 22:30:21,079 INFO L226 Difference]: Without dead ends: 25 [2019-11-27 22:30:21,080 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 [2019-11-27 22:30:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-27 22:30:21,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2019-11-27 22:30:21,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-27 22:30:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-11-27 22:30:21,085 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-11-27 22:30:21,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:30:21,086 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-11-27 22:30:21,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:30:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-11-27 22:30:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 22:30:21,087 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:30:21,087 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:30:21,087 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:30:21,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:30:21,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1602337035, now seen corresponding path program 1 times [2019-11-27 22:30:21,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:30:21,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917637241] [2019-11-27 22:30:21,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:30:21,117 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:30:21,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169587226] [2019-11-27 22:30:21,118 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 [2019-11-27 22:30:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:30:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:30:21,216 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:30:21,216 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:30:21,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:30:21,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:30:21 BoogieIcfgContainer [2019-11-27 22:30:21,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:30:21,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:30:21,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:30:21,455 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:30:21,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:30:20" (3/4) ... [2019-11-27 22:30:21,458 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:30:21,509 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:30:21,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:30:21,511 INFO L168 Benchmark]: Toolchain (without parser) took 2100.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -109.4 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:21,511 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-27 22:30:21,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.75 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. [2019-11-27 22:30:21,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -208.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:21,514 INFO L168 Benchmark]: Boogie Preprocessor took 59.73 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:21,515 INFO L168 Benchmark]: RCFGBuilder took 318.13 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:21,516 INFO L168 Benchmark]: TraceAbstraction took 1166.32 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: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:21,516 INFO L168 Benchmark]: Witness Printer took 55.01 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-27 22:30:21,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 381.75 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 113.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -208.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.73 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.13 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1166.32 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: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * Witness Printer took 55.01 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: 6.5 MB). Peak memory consumption was 6.5 MB. 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] int sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L26] sum[0] = 0 [L27] i=0 VAL [N=1] [L27] COND TRUE i