./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifeqn5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/ifeqn5f.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 9a6037c76b46b0da4af31997de1947f2fadc4b09 ......................................................................................................................................................................................................................................................................................................................................................................... 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-wip.dd.seqcomp-5fbdf5b [2021-08-29 02:03:30,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 02:03:30,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 02:03:30,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 02:03:30,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 02:03:30,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 02:03:30,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 02:03:30,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 02:03:30,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 02:03:30,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 02:03:30,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 02:03:30,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 02:03:30,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 02:03:30,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 02:03:30,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 02:03:30,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 02:03:30,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 02:03:30,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 02:03:30,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 02:03:30,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 02:03:30,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 02:03:30,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 02:03:30,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 02:03:30,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 02:03:30,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 02:03:30,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 02:03:30,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 02:03:30,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 02:03:30,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 02:03:30,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 02:03:30,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 02:03:30,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 02:03:30,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 02:03:30,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 02:03:30,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 02:03:30,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 02:03:30,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 02:03:30,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 02:03:30,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 02:03:30,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 02:03:30,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 02:03:30,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 02:03:30,364 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 02:03:30,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 02:03:30,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 02:03:30,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 02:03:30,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 02:03:30,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 02:03:30,367 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 02:03:30,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 02:03:30,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 02:03:30,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 02:03:30,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 02:03:30,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 02:03:30,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 02:03:30,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 02:03:30,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 02:03:30,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 02:03:30,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 02:03:30,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 02:03:30,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 02:03:30,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 02:03:30,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 02:03:30,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 02:03:30,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:03:30,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 02:03:30,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 02:03:30,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 02:03:30,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 02:03:30,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 02:03:30,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 02:03:30,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 02:03:30,372 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a6037c76b46b0da4af31997de1947f2fadc4b09 [2021-08-29 02:03:30,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 02:03:30,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 02:03:30,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 02:03:30,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 02:03:30,691 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 02:03:30,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifeqn5f.c [2021-08-29 02:03:30,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f8828a4/820524fbc8804c709e5f6b65b4efb31a/FLAGf759f0150 [2021-08-29 02:03:31,227 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 02:03:31,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifeqn5f.c [2021-08-29 02:03:31,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f8828a4/820524fbc8804c709e5f6b65b4efb31a/FLAGf759f0150 [2021-08-29 02:03:31,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09f8828a4/820524fbc8804c709e5f6b65b4efb31a [2021-08-29 02:03:31,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 02:03:31,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 02:03:31,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 02:03:31,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 02:03:31,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 02:03:31,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14152472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31, skipping insertion in model container [2021-08-29 02:03:31,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 02:03:31,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 02:03:31,394 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/ifeqn5f.c[590,603] [2021-08-29 02:03:31,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:03:31,415 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 02:03:31,440 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/ifeqn5f.c[590,603] [2021-08-29 02:03:31,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 02:03:31,475 INFO L208 MainTranslator]: Completed translation [2021-08-29 02:03:31,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31 WrapperNode [2021-08-29 02:03:31,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 02:03:31,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 02:03:31,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 02:03:31,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 02:03:31,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 02:03:31,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 02:03:31,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 02:03:31,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 02:03:31,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 02:03:31,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 02:03:31,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 02:03:31,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 02:03:31,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (1/1) ... [2021-08-29 02:03:31,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 02:03:31,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:03:31,562 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) [2021-08-29 02:03:31,576 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 [2021-08-29 02:03:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 02:03:31,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 02:03:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 02:03:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 02:03:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 02:03:31,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 02:03:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 02:03:31,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 02:03:31,826 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-08-29 02:03:31,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:03:31 BoogieIcfgContainer [2021-08-29 02:03:31,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 02:03:31,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 02:03:31,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 02:03:31,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 02:03:31,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:03:31" (1/3) ... [2021-08-29 02:03:31,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319114d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:03:31, skipping insertion in model container [2021-08-29 02:03:31,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:03:31" (2/3) ... [2021-08-29 02:03:31,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319114d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:03:31, skipping insertion in model container [2021-08-29 02:03:31,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:03:31" (3/3) ... [2021-08-29 02:03:31,849 INFO L111 eAbstractionObserver]: Analyzing ICFG ifeqn5f.c [2021-08-29 02:03:31,854 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 02:03:31,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 02:03:31,905 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 02:03:31,915 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 [2021-08-29 02:03:31,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 02:03:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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) [2021-08-29 02:03:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 02:03:31,938 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:03:31,938 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:03:31,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:03:31,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:03:31,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1670316217, now seen corresponding path program 1 times [2021-08-29 02:03:31,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:03:31,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293371004] [2021-08-29 02:03:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:03:31,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:03:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:03:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:03:32,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:03:32,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293371004] [2021-08-29 02:03:32,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293371004] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:03:32,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:03:32,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 02:03:32,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709301155] [2021-08-29 02:03:32,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 02:03:32,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:03:32,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 02:03:32,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 02:03:32,171 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-08-29 02:03:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:03:32,269 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-08-29 02:03:32,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 02:03:32,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-08-29 02:03:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:03:32,305 INFO L225 Difference]: With dead ends: 42 [2021-08-29 02:03:32,305 INFO L226 Difference]: Without dead ends: 19 [2021-08-29 02:03:32,307 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 02:03:32,310 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.07ms IncrementalHoareTripleChecker+Time [2021-08-29 02:03:32,311 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 80.07ms Time] [2021-08-29 02:03:32,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-08-29 02:03:32,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-08-29 02:03:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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) [2021-08-29 02:03:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-08-29 02:03:32,362 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2021-08-29 02:03:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:03:32,363 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-08-29 02:03:32,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2021-08-29 02:03:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-08-29 02:03:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 02:03:32,364 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:03:32,364 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:03:32,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 02:03:32,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:03:32,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:03:32,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1000416578, now seen corresponding path program 1 times [2021-08-29 02:03:32,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:03:32,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011960387] [2021-08-29 02:03:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:03:32,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:03:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 02:03:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 02:03:32,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 02:03:32,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011960387] [2021-08-29 02:03:32,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011960387] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 02:03:32,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 02:03:32,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 02:03:32,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012402333] [2021-08-29 02:03:32,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 02:03:32,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 02:03:32,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 02:03:32,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:03:32,489 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-08-29 02:03:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 02:03:32,579 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-08-29 02:03:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 02:03:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-08-29 02:03:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 02:03:32,582 INFO L225 Difference]: With dead ends: 45 [2021-08-29 02:03:32,582 INFO L226 Difference]: Without dead ends: 31 [2021-08-29 02:03:32,586 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.71ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 02:03:32,587 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.07ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.56ms IncrementalHoareTripleChecker+Time [2021-08-29 02:03:32,588 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 2.07ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 71.56ms Time] [2021-08-29 02:03:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-08-29 02:03:32,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-08-29 02:03:32,598 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) [2021-08-29 02:03:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-08-29 02:03:32,600 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-08-29 02:03:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 02:03:32,600 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-08-29 02:03:32,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-08-29 02:03:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-08-29 02:03:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 02:03:32,602 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 02:03:32,602 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 02:03:32,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 02:03:32,603 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 02:03:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 02:03:32,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1992201947, now seen corresponding path program 1 times [2021-08-29 02:03:32,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 02:03:32,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575327853] [2021-08-29 02:03:32,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:03:32,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 02:03:32,631 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 02:03:32,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496254640] [2021-08-29 02:03:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 02:03:32,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 02:03:32,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 02:03:32,637 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) [2021-08-29 02:03:32,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 02:03:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 02:03:32,713 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 02:03:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 02:03:32,763 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 02:03:32,764 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 02:03:32,765 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 02:03:32,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 02:03:32,993 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 [2021-08-29 02:03:32,998 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 02:03:33,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:03:33 BoogieIcfgContainer [2021-08-29 02:03:33,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 02:03:33,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 02:03:33,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 02:03:33,051 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 02:03:33,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:03:31" (3/4) ... [2021-08-29 02:03:33,054 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 02:03:33,101 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 02:03:33,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 02:03:33,102 INFO L158 Benchmark]: Toolchain (without parser) took 1842.55ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 35.7MB in the beginning and 35.1MB in the end (delta: 591.8kB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-08-29 02:03:33,102 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 02:03:33,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.86ms. Allocated memory is still 56.6MB. Free memory was 35.4MB in the beginning and 40.0MB in the end (delta: -4.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 02:03:33,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.00ms. Allocated memory is still 56.6MB. Free memory was 40.0MB in the beginning and 38.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 02:03:33,104 INFO L158 Benchmark]: Boogie Preprocessor took 21.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 37.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 02:03:33,104 INFO L158 Benchmark]: RCFGBuilder took 291.94ms. Allocated memory is still 56.6MB. Free memory was 37.0MB in the beginning and 27.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 02:03:33,104 INFO L158 Benchmark]: TraceAbstraction took 1220.04ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 27.1MB in the beginning and 37.4MB in the end (delta: -10.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-08-29 02:03:33,105 INFO L158 Benchmark]: Witness Printer took 51.43ms. Allocated memory is still 73.4MB. Free memory was 37.4MB in the beginning and 35.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 02:03:33,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.86ms. Allocated memory is still 56.6MB. Free memory was 35.4MB in the beginning and 40.0MB in the end (delta: -4.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.00ms. Allocated memory is still 56.6MB. Free memory was 40.0MB in the beginning and 38.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.16ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 37.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.94ms. Allocated memory is still 56.6MB. Free memory was 37.0MB in the beginning and 27.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1220.04ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 27.1MB in the beginning and 37.4MB in the end (delta: -10.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 51.43ms. Allocated memory is still 73.4MB. Free memory was 37.4MB in the beginning and 35.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms 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 *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=1] [L31] COND TRUE i