./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ss4f.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/ss4f.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 7b7b665c41d8eb97c323bd5a23347954e8a377fe ......................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:33:05,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:33:05,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:33:05,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:33:05,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:33:05,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:33:05,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:33:05,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:33:05,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:33:05,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:33:05,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:33:05,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:33:05,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:33:05,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:33:05,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:33:05,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:33:05,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:33:05,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:33:05,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:33:05,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:33:05,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:33:05,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:33:05,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:33:05,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:33:05,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:33:05,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:33:05,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:33:05,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:33:05,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:33:05,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:33:05,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:33:05,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:33:05,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:33:05,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:33:05,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:33:05,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:33:05,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:33:05,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:33:05,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:33:05,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:33:05,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:33:05,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:33:05,227 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:33:05,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:33:05,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:33:05,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:33:05,232 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:33:05,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:33:05,233 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:33:05,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:33:05,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:33:05,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:33:05,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:33:05,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:33:05,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:33:05,234 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:33:05,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:33:05,235 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:33:05,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:33:05,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:33:05,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:33:05,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:33:05,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:33:05,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:33:05,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:33:05,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:33:05,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:33:05,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:33:05,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:33:05,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:33:05,239 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 -> 7b7b665c41d8eb97c323bd5a23347954e8a377fe [2019-11-27 22:33:05,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:33:05,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:33:05,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:33:05,593 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:33:05,594 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:33:05,596 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss4f.c [2019-11-27 22:33:05,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/378b6af4c/4fbc525e5be2423a90cc139a29cfcff2/FLAG3749634fa [2019-11-27 22:33:06,112 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:33:06,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss4f.c [2019-11-27 22:33:06,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/378b6af4c/4fbc525e5be2423a90cc139a29cfcff2/FLAG3749634fa [2019-11-27 22:33:06,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/378b6af4c/4fbc525e5be2423a90cc139a29cfcff2 [2019-11-27 22:33:06,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:33:06,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:33:06,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:06,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:33:06,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:33:06,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:06,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d9ed56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06, skipping insertion in model container [2019-11-27 22:33:06,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:06,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:33:06,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:33:06,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:06,853 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:33:06,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:06,892 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:33:06,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06 WrapperNode [2019-11-27 22:33:06,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:06,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:06,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:33:06,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:33:06,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:06,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:06,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:06,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:33:06,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:33:06,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:33:07,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (1/1) ... [2019-11-27 22:33:07,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:33:07,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:33:07,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:33:07,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:33:07,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (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 22:33:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 22:33:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 22:33:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-27 22:33:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:33:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:33:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 22:33:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 22:33:07,421 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:33:07,421 INFO L297 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-27 22:33:07,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:07 BoogieIcfgContainer [2019-11-27 22:33:07,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:33:07,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:33:07,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:33:07,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:33:07,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:33:06" (1/3) ... [2019-11-27 22:33:07,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e21d747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:33:07, skipping insertion in model container [2019-11-27 22:33:07,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:06" (2/3) ... [2019-11-27 22:33:07,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e21d747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:33:07, skipping insertion in model container [2019-11-27 22:33:07,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:07" (3/3) ... [2019-11-27 22:33:07,437 INFO L109 eAbstractionObserver]: Analyzing ICFG ss4f.c [2019-11-27 22:33:07,446 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:33:07,455 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:33:07,466 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:33:07,495 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:33:07,495 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:33:07,496 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:33:07,496 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:33:07,496 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:33:07,496 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:33:07,496 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:33:07,497 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:33:07,510 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-27 22:33:07,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-27 22:33:07,516 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:07,517 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:07,517 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:07,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:07,524 INFO L82 PathProgramCache]: Analyzing trace with hash 920027386, now seen corresponding path program 1 times [2019-11-27 22:33:07,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:07,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440446235] [2019-11-27 22:33:07,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:33:07,659 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 22:33:07,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440446235] [2019-11-27 22:33:07,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:33:07,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 22:33:07,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593454965] [2019-11-27 22:33:07,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 22:33:07,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:33:07,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 22:33:07,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:33:07,679 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-27 22:33:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:33:07,695 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2019-11-27 22:33:07,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 22:33:07,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-27 22:33:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:33:07,705 INFO L225 Difference]: With dead ends: 39 [2019-11-27 22:33:07,705 INFO L226 Difference]: Without dead ends: 18 [2019-11-27 22:33:07,708 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 22:33:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-27 22:33:07,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-27 22:33:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-27 22:33:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-27 22:33:07,740 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2019-11-27 22:33:07,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:33:07,741 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-27 22:33:07,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 22:33:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-27 22:33:07,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-27 22:33:07,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:07,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:07,742 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:07,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:07,743 INFO L82 PathProgramCache]: Analyzing trace with hash 232180998, now seen corresponding path program 1 times [2019-11-27 22:33:07,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:07,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531019911] [2019-11-27 22:33:07,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:07,764 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:07,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661585815] [2019-11-27 22:33:07,764 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 22:33:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:33:07,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 22:33:07,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:33:07,885 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 22:33:07,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531019911] [2019-11-27 22:33:07,886 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-27 22:33:07,886 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661585815] [2019-11-27 22:33:07,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:33:07,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 22:33:07,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86619463] [2019-11-27 22:33:07,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 22:33:07,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:33:07,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 22:33:07,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 22:33:07,889 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2019-11-27 22:33:07,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:33:07,934 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-27 22:33:07,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 22:33:07,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-27 22:33:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:33:07,935 INFO L225 Difference]: With dead ends: 33 [2019-11-27 22:33:07,935 INFO L226 Difference]: Without dead ends: 20 [2019-11-27 22:33:07,937 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 [2019-11-27 22:33:07,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-27 22:33:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-11-27 22:33:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 22:33:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2019-11-27 22:33:07,942 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2019-11-27 22:33:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:33:07,943 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2019-11-27 22:33:07,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 22:33:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2019-11-27 22:33:07,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 22:33:07,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:07,944 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:08,145 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:08,146 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:08,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:08,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1949301912, now seen corresponding path program 1 times [2019-11-27 22:33:08,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:08,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505635073] [2019-11-27 22:33:08,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:08,187 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:08,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339567417] [2019-11-27 22:33:08,188 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 [2019-11-27 22:33:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:33:08,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 22:33:08,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:33:08,282 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 22:33:08,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505635073] [2019-11-27 22:33:08,282 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-27 22:33:08,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339567417] [2019-11-27 22:33:08,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:33:08,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-27 22:33:08,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340292131] [2019-11-27 22:33:08,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 22:33:08,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 22:33:08,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 22:33:08,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 22:33:08,286 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states. [2019-11-27 22:33:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:33:08,379 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-11-27 22:33:08,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 22:33:08,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-27 22:33:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:33:08,381 INFO L225 Difference]: With dead ends: 36 [2019-11-27 22:33:08,381 INFO L226 Difference]: Without dead ends: 26 [2019-11-27 22:33:08,382 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 [2019-11-27 22:33:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-27 22:33:08,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2019-11-27 22:33:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-27 22:33:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-27 22:33:08,388 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 15 [2019-11-27 22:33:08,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:33:08,389 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-27 22:33:08,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 22:33:08,389 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-27 22:33:08,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-27 22:33:08,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:08,390 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] [2019-11-27 22:33:08,591 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:08,591 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:08,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:08,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1949747954, now seen corresponding path program 1 times [2019-11-27 22:33:08,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:08,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665971867] [2019-11-27 22:33:08,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:08,628 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:08,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172331848] [2019-11-27 22:33:08,629 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 [2019-11-27 22:33:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:33:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 22:33:08,729 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 22:33:08,729 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:33:08,933 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:08,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:33:08 BoogieIcfgContainer [2019-11-27 22:33:08,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:33:08,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:33:08,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:33:08,981 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:33:08,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:07" (3/4) ... [2019-11-27 22:33:08,985 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 22:33:09,061 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:33:09,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:33:09,064 INFO L168 Benchmark]: Toolchain (without parser) took 2499.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -45.7 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:09,066 INFO L168 Benchmark]: CDTParser took 0.40 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. [2019-11-27 22:33:09,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.34 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. [2019-11-27 22:33:09,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:09,069 INFO L168 Benchmark]: Boogie Preprocessor took 34.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:33:09,070 INFO L168 Benchmark]: RCFGBuilder took 390.02 ms. Allocated memory is still 1.1 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. [2019-11-27 22:33:09,070 INFO L168 Benchmark]: TraceAbstraction took 1554.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:09,071 INFO L168 Benchmark]: Witness Printer took 82.38 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:33:09,074 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 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 328.34 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 104.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 390.02 ms. Allocated memory is still 1.1 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 1554.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. * Witness Printer took 82.38 ms. Allocated memory is still 1.1 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