./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ms4f.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/ms4f.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 a1e998c997911002053a1a8ad8949f427ab16e7b ................................................................................................................................................................................................................................................................................................................................................................. 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 19:22:01,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 19:22:01,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 19:22:01,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 19:22:01,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 19:22:01,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 19:22:01,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 19:22:01,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 19:22:01,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 19:22:01,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 19:22:01,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 19:22:01,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 19:22:01,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 19:22:01,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 19:22:01,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 19:22:01,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 19:22:01,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 19:22:01,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 19:22:01,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 19:22:01,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 19:22:01,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 19:22:01,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 19:22:01,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 19:22:01,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 19:22:01,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 19:22:01,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 19:22:01,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 19:22:01,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 19:22:01,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 19:22:01,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 19:22:01,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 19:22:01,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 19:22:01,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 19:22:01,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 19:22:01,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 19:22:01,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 19:22:01,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 19:22:01,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 19:22:01,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 19:22:01,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 19:22:01,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 19:22:01,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 19:22:01,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 19:22:01,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 19:22:01,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 19:22:01,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 19:22:01,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 19:22:01,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 19:22:01,358 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 19:22:01,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 19:22:01,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 19:22:01,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 19:22:01,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 19:22:01,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 19:22:01,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 19:22:01,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 19:22:01,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 19:22:01,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 19:22:01,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:22:01,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 19:22:01,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 19:22:01,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 19:22:01,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 19:22:01,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 19:22:01,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 19:22:01,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 19:22:01,362 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1e998c997911002053a1a8ad8949f427ab16e7b [2021-08-25 19:22:01,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 19:22:01,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 19:22:01,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 19:22:01,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 19:22:01,658 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 19:22:01,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms4f.c [2021-08-25 19:22:01,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ba64425/f323b8afa6ca4448bcc5adf2d3b14dac/FLAGa94a8308c [2021-08-25 19:22:02,033 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 19:22:02,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms4f.c [2021-08-25 19:22:02,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ba64425/f323b8afa6ca4448bcc5adf2d3b14dac/FLAGa94a8308c [2021-08-25 19:22:02,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ba64425/f323b8afa6ca4448bcc5adf2d3b14dac [2021-08-25 19:22:02,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 19:22:02,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 19:22:02,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 19:22:02,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 19:22:02,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 19:22:02,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afdaf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02, skipping insertion in model container [2021-08-25 19:22:02,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 19:22:02,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 19:22:02,224 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/ms4f.c[587,600] [2021-08-25 19:22:02,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:22:02,239 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 19:22:02,247 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/ms4f.c[587,600] [2021-08-25 19:22:02,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 19:22:02,271 INFO L208 MainTranslator]: Completed translation [2021-08-25 19:22:02,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02 WrapperNode [2021-08-25 19:22:02,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 19:22:02,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 19:22:02,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 19:22:02,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 19:22:02,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 19:22:02,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 19:22:02,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 19:22:02,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 19:22:02,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 19:22:02,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 19:22:02,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 19:22:02,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 19:22:02,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (1/1) ... [2021-08-25 19:22:02,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 19:22:02,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 19:22:02,386 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 19:22:02,406 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 19:22:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 19:22:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 19:22:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-25 19:22:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-25 19:22:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 19:22:02,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 19:22:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-25 19:22:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-25 19:22:02,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 19:22:02,669 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-25 19:22:02,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:22:02 BoogieIcfgContainer [2021-08-25 19:22:02,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 19:22:02,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 19:22:02,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 19:22:02,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 19:22:02,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:22:02" (1/3) ... [2021-08-25 19:22:02,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e3f722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:22:02, skipping insertion in model container [2021-08-25 19:22:02,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:22:02" (2/3) ... [2021-08-25 19:22:02,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e3f722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:22:02, skipping insertion in model container [2021-08-25 19:22:02,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:22:02" (3/3) ... [2021-08-25 19:22:02,675 INFO L111 eAbstractionObserver]: Analyzing ICFG ms4f.c [2021-08-25 19:22:02,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 19:22:02,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 19:22:02,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 19:22:02,741 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 19:22:02,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 19:22:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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 19:22:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-25 19:22:02,778 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:22:02,778 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:22:02,778 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:22:02,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:22:02,782 INFO L82 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2021-08-25 19:22:02,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:22:02,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320090311] [2021-08-25 19:22:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:22:02,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:22:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:22:02,922 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 19:22:02,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:22:02,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320090311] [2021-08-25 19:22:02,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320090311] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:22:02,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:22:02,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 19:22:02,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521543216] [2021-08-25 19:22:02,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 19:22:02,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:22:02,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 19:22:02,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 19:22:02,936 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 19:22:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:22:02,944 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-08-25 19:22:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 19:22:02,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-08-25 19:22:02,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:22:02,948 INFO L225 Difference]: With dead ends: 34 [2021-08-25 19:22:02,949 INFO L226 Difference]: Without dead ends: 15 [2021-08-25 19:22:02,950 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 19:22:02,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-08-25 19:22:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-08-25 19:22:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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 19:22:02,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-08-25 19:22:02,966 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2021-08-25 19:22:02,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:22:02,966 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-08-25 19:22:02,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 19:22:02,967 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-08-25 19:22:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-25 19:22:02,967 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:22:02,967 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:22:02,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 19:22:02,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:22:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:22:02,968 INFO L82 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2021-08-25 19:22:02,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:22:02,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839695754] [2021-08-25 19:22:02,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:22:02,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:22:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 19:22:03,024 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 19:22:03,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 19:22:03,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839695754] [2021-08-25 19:22:03,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839695754] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 19:22:03,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 19:22:03,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 19:22:03,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870448417] [2021-08-25 19:22:03,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 19:22:03,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 19:22:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 19:22:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 19:22:03,027 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 19:22:03,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 19:22:03,065 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-08-25 19:22:03,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 19:22:03,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-08-25 19:22:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 19:22:03,067 INFO L225 Difference]: With dead ends: 28 [2021-08-25 19:22:03,067 INFO L226 Difference]: Without dead ends: 20 [2021-08-25 19:22:03,068 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 19:22:03,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-08-25 19:22:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-08-25 19:22:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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 19:22:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-08-25 19:22:03,075 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2021-08-25 19:22:03,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 19:22:03,075 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-08-25 19:22:03,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 19:22:03,076 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-08-25 19:22:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-25 19:22:03,076 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 19:22:03,076 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 19:22:03,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 19:22:03,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 19:22:03,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 19:22:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2021-08-25 19:22:03,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 19:22:03,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664446790] [2021-08-25 19:22:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 19:22:03,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 19:22:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 19:22:03,130 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 19:22:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 19:22:03,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 19:22:03,205 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 19:22:03,206 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 19:22:03,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 19:22:03,210 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 19:22:03,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:22:03 BoogieIcfgContainer [2021-08-25 19:22:03,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 19:22:03,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 19:22:03,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 19:22:03,226 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 19:22:03,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:22:02" (3/4) ... [2021-08-25 19:22:03,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-25 19:22:03,251 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 19:22:03,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 19:22:03,253 INFO L168 Benchmark]: Toolchain (without parser) took 1184.58 ms. Allocated memory was 73.4 MB in the beginning and 113.2 MB in the end (delta: 39.8 MB). Free memory was 55.6 MB in the beginning and 89.6 MB in the end (delta: -34.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-25 19:22:03,253 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 73.4 MB. Free memory was 55.0 MB in the beginning and 54.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:22:03,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.38 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 57.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-08-25 19:22:03,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.19 ms. Allocated memory is still 73.4 MB. Free memory was 57.0 MB in the beginning and 55.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 19:22:03,254 INFO L168 Benchmark]: Boogie Preprocessor took 34.89 ms. Allocated memory is still 73.4 MB. Free memory was 55.4 MB in the beginning and 54.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 19:22:03,254 INFO L168 Benchmark]: RCFGBuilder took 304.05 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 39.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 19:22:03,255 INFO L168 Benchmark]: TraceAbstraction took 554.58 ms. Allocated memory was 73.4 MB in the beginning and 113.2 MB in the end (delta: 39.8 MB). Free memory was 39.0 MB in the beginning and 92.3 MB in the end (delta: -53.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-08-25 19:22:03,255 INFO L168 Benchmark]: Witness Printer took 25.65 ms. Allocated memory is still 113.2 MB. Free memory was 92.3 MB in the beginning and 89.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-25 19:22:03,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 73.4 MB. Free memory was 55.0 MB in the beginning and 54.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 207.38 ms. Allocated memory is still 73.4 MB. Free memory was 55.5 MB in the beginning and 57.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.19 ms. Allocated memory is still 73.4 MB. Free memory was 57.0 MB in the beginning and 55.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.89 ms. Allocated memory is still 73.4 MB. Free memory was 55.4 MB in the beginning and 54.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.05 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 39.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 554.58 ms. Allocated memory was 73.4 MB in the beginning and 113.2 MB in the end (delta: 39.8 MB). Free memory was 39.0 MB in the beginning and 92.3 MB in the end (delta: -53.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Witness Printer took 25.65 ms. Allocated memory is still 113.2 MB. Free memory was 92.3 MB in the beginning and 89.6 MB in the end (delta: 2.7 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] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [N=1] [L31] COND TRUE i