./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ss1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/ss1f.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 e031ef2556c7b65c227cf4680a42fedd84ef69fd ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 15:37:23,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:37:23,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:37:23,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:37:23,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:37:23,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:37:23,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:37:23,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:37:23,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:37:23,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:37:23,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:37:23,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:37:23,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:37:23,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:37:23,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:37:23,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:37:23,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:37:23,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:37:23,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:37:23,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:37:23,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:37:23,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:37:23,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:37:23,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:37:23,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:37:23,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:37:23,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:37:23,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:37:23,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:37:23,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:37:23,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:37:23,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:37:23,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:37:23,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:37:23,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:37:23,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:37:23,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:37:23,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:37:23,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:37:23,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:37:23,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:37:23,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:37:23,779 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:37:23,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:37:23,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:37:23,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:37:23,781 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:37:23,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:37:23,782 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:37:23,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:37:23,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:37:23,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:37:23,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:37:23,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:37:23,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:37:23,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:37:23,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:37:23,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:37:23,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:37:23,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:37:23,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:37:23,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:37:23,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:37:23,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:37:23,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:37:23,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:37:23,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:37:23,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:37:23,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:37:23,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:37:23,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:37:23,789 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 -> e031ef2556c7b65c227cf4680a42fedd84ef69fd [2019-11-28 15:37:24,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:37:24,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:37:24,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:37:24,110 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:37:24,110 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:37:24,111 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss1f.c [2019-11-28 15:37:24,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cba106d2/dd9d206786c64b4a8ddf1cb9e34196a0/FLAG051fa1da8 [2019-11-28 15:37:24,548 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:37:24,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss1f.c [2019-11-28 15:37:24,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cba106d2/dd9d206786c64b4a8ddf1cb9e34196a0/FLAG051fa1da8 [2019-11-28 15:37:24,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cba106d2/dd9d206786c64b4a8ddf1cb9e34196a0 [2019-11-28 15:37:24,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:37:24,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:37:24,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:24,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:37:24,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:37:24,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:24" (1/1) ... [2019-11-28 15:37:24,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d9d2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:24, skipping insertion in model container [2019-11-28 15:37:24,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:24" (1/1) ... [2019-11-28 15:37:24,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:37:24,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:37:25,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:25,154 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:37:25,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:37:25,197 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:37:25,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25 WrapperNode [2019-11-28 15:37:25,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:37:25,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:25,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:37:25,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:37:25,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:37:25,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:37:25,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:37:25,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:37:25,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... [2019-11-28 15:37:25,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:37:25,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:37:25,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:37:25,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:37:25,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:37:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 15:37:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 15:37:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 15:37:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:37:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:37:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 15:37:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 15:37:25,668 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:37:25,669 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-28 15:37:25,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:25 BoogieIcfgContainer [2019-11-28 15:37:25,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:37:25,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:37:25,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:37:25,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:37:25,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:37:24" (1/3) ... [2019-11-28 15:37:25,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4049d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:25, skipping insertion in model container [2019-11-28 15:37:25,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:25" (2/3) ... [2019-11-28 15:37:25,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4049d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:37:25, skipping insertion in model container [2019-11-28 15:37:25,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:25" (3/3) ... [2019-11-28 15:37:25,678 INFO L109 eAbstractionObserver]: Analyzing ICFG ss1f.c [2019-11-28 15:37:25,689 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:37:25,697 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:37:25,710 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:37:25,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:37:25,733 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:37:25,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:37:25,734 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:37:25,734 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:37:25,734 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:37:25,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:37:25,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:37:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-28 15:37:25,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 15:37:25,753 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:25,754 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:25,754 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:25,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:25,759 INFO L82 PathProgramCache]: Analyzing trace with hash 920027386, now seen corresponding path program 1 times [2019-11-28 15:37:25,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:25,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598231274] [2019-11-28 15:37:25,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:37:25,897 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598231274] [2019-11-28 15:37:25,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:25,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 15:37:25,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599020154] [2019-11-28 15:37:25,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 15:37:25,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:25,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 15:37:25,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:25,914 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-28 15:37:25,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:25,929 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-28 15:37:25,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 15:37:25,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-28 15:37:25,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:25,940 INFO L225 Difference]: With dead ends: 39 [2019-11-28 15:37:25,940 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 15:37:25,943 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 15:37:25,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 15:37:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 15:37:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 15:37:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-28 15:37:25,972 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2019-11-28 15:37:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:25,973 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-28 15:37:25,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 15:37:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-28 15:37:25,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 15:37:25,974 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:25,974 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:25,975 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:25,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:25,975 INFO L82 PathProgramCache]: Analyzing trace with hash 232180998, now seen corresponding path program 1 times [2019-11-28 15:37:25,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:25,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40205908] [2019-11-28 15:37:25,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:25,995 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:25,995 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553945781] [2019-11-28 15:37:25,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:26,098 INFO L264 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:37:26,104 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:37:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:37:26,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40205908] [2019-11-28 15:37:26,138 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:37:26,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553945781] [2019-11-28 15:37:26,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:26,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:37:26,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642464159] [2019-11-28 15:37:26,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 15:37:26,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:26,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 15:37:26,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:26,142 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2019-11-28 15:37:26,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:26,190 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-28 15:37:26,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 15:37:26,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-28 15:37:26,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:26,192 INFO L225 Difference]: With dead ends: 33 [2019-11-28 15:37:26,192 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 15:37:26,193 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 15:37:26,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 15:37:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-28 15:37:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 15:37:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-28 15:37:26,199 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-28 15:37:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:26,199 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-28 15:37:26,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 15:37:26,200 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-28 15:37:26,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 15:37:26,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:26,201 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:37:26,405 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:26,406 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:26,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:26,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1949301912, now seen corresponding path program 1 times [2019-11-28 15:37:26,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:26,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119392751] [2019-11-28 15:37:26,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:26,437 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:26,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386210307] [2019-11-28 15:37:26,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:37:26,485 INFO L264 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 15:37:26,487 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:37:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 15:37:26,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119392751] [2019-11-28 15:37:26,508 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-28 15:37:26,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386210307] [2019-11-28 15:37:26,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:37:26,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 15:37:26,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683990025] [2019-11-28 15:37:26,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:37:26,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:37:26,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:37:26,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:37:26,511 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-11-28 15:37:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:37:26,585 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-28 15:37:26,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:37:26,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-28 15:37:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:37:26,587 INFO L225 Difference]: With dead ends: 36 [2019-11-28 15:37:26,587 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 15:37:26,587 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:37:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 15:37:26,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-28 15:37:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 15:37:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-28 15:37:26,594 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 15 [2019-11-28 15:37:26,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:37:26,595 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-28 15:37:26,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:37:26,595 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-28 15:37:26,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 15:37:26,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:37:26,596 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] [2019-11-28 15:37:26,805 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:26,806 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:37:26,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:37:26,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1949747954, now seen corresponding path program 1 times [2019-11-28 15:37:26,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:37:26,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821723884] [2019-11-28 15:37:26,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:37:26,841 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:37:26,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005507526] [2019-11-28 15:37:26,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 15:37:26,964 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 15:37:26,964 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:37:27,165 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:37:27,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:37:27 BoogieIcfgContainer [2019-11-28 15:37:27,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:37:27,201 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:37:27,201 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:37:27,201 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:37:27,202 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:37:25" (3/4) ... [2019-11-28 15:37:27,204 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 15:37:27,257 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:37:27,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:37:27,259 INFO L168 Benchmark]: Toolchain (without parser) took 2345.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -75.1 MB). Peak memory consumption was 70.1 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:27,260 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:27,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:27,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:27,262 INFO L168 Benchmark]: Boogie Preprocessor took 33.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:27,263 INFO L168 Benchmark]: RCFGBuilder took 345.01 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:27,263 INFO L168 Benchmark]: TraceAbstraction took 1529.65 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: 79.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-11-28 15:37:27,264 INFO L168 Benchmark]: Witness Printer took 55.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:37:27,267 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 281.18 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 92.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.68 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 345.01 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1529.65 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: 79.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. * Witness Printer took 55.89 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