./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/modsf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/modsf.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 ........................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.1-dev-20ed64e [2021-08-25 19:14:49,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 19:14:49,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 19:14:49,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 19:14:49,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 19:14:49,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 19:14:49,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 19:14:49,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 19:14:49,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 19:14:49,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 19:14:49,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 19:14:49,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 19:14:49,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 19:14:49,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 19:14:49,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 19:14:49,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 19:14:49,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 19:14:49,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 19:14:49,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 19:14:49,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 19:14:49,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 19:14:49,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 19:14:49,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 19:14:49,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 19:14:49,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 19:14:49,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 19:14:49,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 19:14:49,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 19:14:49,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 19:14:49,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 19:14:49,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 19:14:49,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 19:14:49,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 19:14:49,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 19:14:49,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 19:14:49,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 19:14:49,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 19:14:49,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 19:14:49,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 19:14:49,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 19:14:49,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 19:14:49,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 19:14:49,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 19:14:49,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 19:14:49,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 19:14:49,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 19:14:49,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 19:14:49,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 19:14:49,367 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 19:14:49,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 19:14:49,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 19:14:49,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 19:14:49,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 19:14:49,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 19:14:49,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 19:14:49,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 19:14:49,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 19:14:49,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 19:14:49,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 19:14:49,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 19:14:49,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 19:14:49,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 19:14:49,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 19:14:49,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 19:14:49,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:14:49,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 19:14:49,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 19:14:49,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 19:14:49,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 19:14:49,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 19:14:49,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 19:14:49,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 19:14:49,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 [2021-08-25 19:14:49,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 19:14:49,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 19:14:49,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 19:14:49,739 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 19:14:49,739 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 19:14:49,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/modsf.c [2021-08-25 19:14:49,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327c3fbc3/1237720caf164bc1942cda2684e55a16/FLAG8a2beb27e [2021-08-25 19:14:50,232 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 19:14:50,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modsf.c [2021-08-25 19:14:50,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327c3fbc3/1237720caf164bc1942cda2684e55a16/FLAG8a2beb27e [2021-08-25 19:14:50,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327c3fbc3/1237720caf164bc1942cda2684e55a16 [2021-08-25 19:14:50,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 19:14:50,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 19:14:50,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 19:14:50,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 19:14:50,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 19:14:50,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa80d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50, skipping insertion in model container [2021-08-25 19:14:50,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 19:14:50,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 19:14:50,411 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modsf.c[588,601] [2021-08-25 19:14:50,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:14:50,441 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 19:14:50,451 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/modsf.c[588,601] [2021-08-25 19:14:50,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:14:50,482 INFO L208 MainTranslator]: Completed translation [2021-08-25 19:14:50,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50 WrapperNode [2021-08-25 19:14:50,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 19:14:50,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 19:14:50,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 19:14:50,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 19:14:50,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 19:14:50,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 19:14:50,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 19:14:50,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 19:14:50,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 19:14:50,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 19:14:50,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 19:14:50,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 19:14:50,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (1/1) ... [2021-08-25 19:14:50,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:14:50,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:14:50,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 19:14:50,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 19:14:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 19:14:50,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 19:14:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-25 19:14:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-25 19:14:50,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 19:14:50,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 19:14:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-25 19:14:50,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-25 19:14:51,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 19:14:51,032 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-25 19:14:51,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:14:51 BoogieIcfgContainer [2021-08-25 19:14:51,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 19:14:51,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 19:14:51,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 19:14:51,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 19:14:51,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:14:50" (1/3) ... [2021-08-25 19:14:51,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7ea5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:14:51, skipping insertion in model container [2021-08-25 19:14:51,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:14:50" (2/3) ... [2021-08-25 19:14:51,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7ea5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:14:51, skipping insertion in model container [2021-08-25 19:14:51,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:14:51" (3/3) ... [2021-08-25 19:14:51,039 INFO L111 eAbstractionObserver]: Analyzing ICFG modsf.c [2021-08-25 19:14:51,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 19:14:51,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 19:14:51,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 19:14:51,103 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 19:14:51,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 19:14:51,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-25 19:14:51,119 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:14:51,119 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:14:51,120 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:14:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:14:51,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2021-08-25 19:14:51,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:14:51,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224303254] [2021-08-25 19:14:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:14:51,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:14:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:14:51,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:14:51,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:14:51,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224303254] [2021-08-25 19:14:51,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224303254] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:14:51,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:14:51,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 19:14:51,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010333924] [2021-08-25 19:14:51,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 19:14:51,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:14:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 19:14:51,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:14:51,302 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:14:51,318 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2021-08-25 19:14:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 19:14:51,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-25 19:14:51,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:14:51,325 INFO L225 Difference]: With dead ends: 50 [2021-08-25 19:14:51,325 INFO L226 Difference]: Without dead ends: 23 [2021-08-25 19:14:51,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:14:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-25 19:14:51,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-25 19:14:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-08-25 19:14:51,354 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-08-25 19:14:51,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:14:51,355 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-08-25 19:14:51,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-08-25 19:14:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-25 19:14:51,357 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:14:51,357 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:14:51,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 19:14:51,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:14:51,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:14:51,361 INFO L82 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2021-08-25 19:14:51,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:14:51,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20727312] [2021-08-25 19:14:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:14:51,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:14:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:14:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 19:14:51,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:14:51,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20727312] [2021-08-25 19:14:51,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20727312] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:14:51,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:14:51,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 19:14:51,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558959645] [2021-08-25 19:14:51,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 19:14:51,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:14:51,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 19:14:51,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 19:14:51,457 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:14:51,548 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-08-25 19:14:51,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 19:14:51,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-25 19:14:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:14:51,549 INFO L225 Difference]: With dead ends: 53 [2021-08-25 19:14:51,549 INFO L226 Difference]: Without dead ends: 37 [2021-08-25 19:14:51,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 19:14:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-25 19:14:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2021-08-25 19:14:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-08-25 19:14:51,556 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2021-08-25 19:14:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:14:51,556 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-08-25 19:14:51,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 19:14:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-08-25 19:14:51,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-25 19:14:51,557 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:14:51,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:14:51,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 19:14:51,558 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:14:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:14:51,558 INFO L82 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2021-08-25 19:14:51,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:14:51,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652129386] [2021-08-25 19:14:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:14:51,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:14:51,580 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-25 19:14:51,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485298185] [2021-08-25 19:14:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:14:51,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:14:51,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:14:51,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 19:14:51,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 19:14:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 19:14:51,718 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 19:14:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 19:14:51,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 19:14:51,805 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 19:14:51,806 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 19:14:51,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 19:14:52,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 19:14:52,026 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 19:14:52,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:14:52 BoogieIcfgContainer [2021-08-25 19:14:52,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 19:14:52,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 19:14:52,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 19:14:52,083 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 19:14:52,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:14:51" (3/4) ... [2021-08-25 19:14:52,085 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-25 19:14:52,135 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 19:14:52,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 19:14:52,137 INFO L168 Benchmark]: Toolchain (without parser) took 1884.06 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 41.1 MB in the beginning and 48.4 MB in the end (delta: -7.4 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-08-25 19:14:52,137 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:14:52,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.85 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 30.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-25 19:14:52,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.75 ms. Allocated memory is still 60.8 MB. Free memory was 30.8 MB in the beginning and 43.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 19:14:52,138 INFO L168 Benchmark]: Boogie Preprocessor took 40.83 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 41.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:14:52,138 INFO L168 Benchmark]: RCFGBuilder took 446.21 ms. Allocated memory is still 60.8 MB. Free memory was 41.8 MB in the beginning and 25.0 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-25 19:14:52,139 INFO L168 Benchmark]: TraceAbstraction took 1047.62 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 24.6 MB in the beginning and 51.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-08-25 19:14:52,139 INFO L168 Benchmark]: Witness Printer took 52.21 ms. Allocated memory is still 73.4 MB. Free memory was 51.0 MB in the beginning and 48.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 19:14:52,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.85 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 30.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.75 ms. Allocated memory is still 60.8 MB. Free memory was 30.8 MB in the beginning and 43.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.83 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 41.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 446.21 ms. Allocated memory is still 60.8 MB. Free memory was 41.8 MB in the beginning and 25.0 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1047.62 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 24.6 MB in the beginning and 51.0 MB in the end (delta: -26.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.21 ms. Allocated memory is still 73.4 MB. Free memory was 51.0 MB in the beginning and 48.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i