./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ifncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/ifncompf.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 19b2937af05cedee0ee8c037c66accd504b6c96d ........................................................................................................................................................................................................................................................................................................................................................................................... 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.multireach-323-8d31f38 [2021-07-04 16:55:48,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 16:55:48,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 16:55:48,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 16:55:48,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 16:55:48,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 16:55:48,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 16:55:48,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 16:55:48,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 16:55:48,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 16:55:48,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 16:55:48,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 16:55:48,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 16:55:48,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 16:55:48,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 16:55:48,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 16:55:48,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 16:55:48,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 16:55:48,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 16:55:48,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 16:55:48,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 16:55:49,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 16:55:49,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 16:55:49,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 16:55:49,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 16:55:49,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 16:55:49,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 16:55:49,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 16:55:49,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 16:55:49,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 16:55:49,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 16:55:49,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 16:55:49,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 16:55:49,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 16:55:49,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 16:55:49,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 16:55:49,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 16:55:49,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 16:55:49,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 16:55:49,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 16:55:49,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 16:55:49,025 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 16:55:49,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 16:55:49,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 16:55:49,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 16:55:49,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 16:55:49,065 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 16:55:49,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 16:55:49,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 16:55:49,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 16:55:49,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 16:55:49,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 16:55:49,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 16:55:49,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 16:55:49,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 16:55:49,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 16:55:49,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 16:55:49,067 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 16:55:49,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 16:55:49,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 16:55:49,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 16:55:49,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 16:55:49,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 16:55:49,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 16:55:49,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 16:55:49,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 16:55:49,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 16:55:49,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 16:55:49,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 16:55:49,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 16:55:49,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19b2937af05cedee0ee8c037c66accd504b6c96d [2021-07-04 16:55:49,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 16:55:49,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 16:55:49,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 16:55:49,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 16:55:49,358 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 16:55:49,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ifncompf.c [2021-07-04 16:55:49,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb312bdd/c24a476d4c3d415abe2ddece50797a08/FLAGd39d1ba23 [2021-07-04 16:55:49,737 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 16:55:49,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ifncompf.c [2021-07-04 16:55:49,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb312bdd/c24a476d4c3d415abe2ddece50797a08/FLAGd39d1ba23 [2021-07-04 16:55:50,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb312bdd/c24a476d4c3d415abe2ddece50797a08 [2021-07-04 16:55:50,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 16:55:50,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 16:55:50,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 16:55:50,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 16:55:50,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 16:55:50,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599cfb14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50, skipping insertion in model container [2021-07-04 16:55:50,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 16:55:50,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 16:55:50,280 WARN L224 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/ifncompf.c[591,604] [2021-07-04 16:55:50,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 16:55:50,301 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 16:55:50,311 WARN L224 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/ifncompf.c[591,604] [2021-07-04 16:55:50,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 16:55:50,330 INFO L208 MainTranslator]: Completed translation [2021-07-04 16:55:50,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50 WrapperNode [2021-07-04 16:55:50,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 16:55:50,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 16:55:50,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 16:55:50,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 16:55:50,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 16:55:50,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 16:55:50,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 16:55:50,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 16:55:50,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 16:55:50,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 16:55:50,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 16:55:50,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 16:55:50,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (1/1) ... [2021-07-04 16:55:50,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 16:55:50,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 16:55:50,515 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) [2021-07-04 16:55:50,569 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 [2021-07-04 16:55:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 16:55:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 16:55:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-04 16:55:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-04 16:55:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 16:55:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 16:55:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-04 16:55:50,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 16:55:50,945 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-04 16:55:50,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 04:55:50 BoogieIcfgContainer [2021-07-04 16:55:50,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 16:55:50,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 16:55:50,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 16:55:50,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 16:55:50,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 04:55:50" (1/3) ... [2021-07-04 16:55:50,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3cca3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 04:55:50, skipping insertion in model container [2021-07-04 16:55:50,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 04:55:50" (2/3) ... [2021-07-04 16:55:50,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3cca3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 04:55:50, skipping insertion in model container [2021-07-04 16:55:50,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 04:55:50" (3/3) ... [2021-07-04 16:55:50,951 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2021-07-04 16:55:50,955 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 16:55:50,955 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 16:55:50,986 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 16:55:50,990 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 16:55:50,990 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 16:55:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 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) [2021-07-04 16:55:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-04 16:55:51,029 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 16:55:51,029 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 16:55:51,030 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 16:55:51,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 16:55:51,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1152450264, now seen corresponding path program 1 times [2021-07-04 16:55:51,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 16:55:51,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799906587] [2021-07-04 16:55:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:55:51,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 16:55:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 16:55:51,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:55:51,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:55:51,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:55:51,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:55:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 16:55:51,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 16:55:51,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799906587] [2021-07-04 16:55:51,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799906587] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 16:55:51,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 16:55:51,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-04 16:55:51,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73767366] [2021-07-04 16:55:51,211 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 16:55:51,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 16:55:51,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 16:55:51,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 16:55:51,225 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-07-04 16:55:51,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 16:55:51,242 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2021-07-04 16:55:51,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 16:55:51,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-07-04 16:55:51,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 16:55:51,250 INFO L225 Difference]: With dead ends: 50 [2021-07-04 16:55:51,250 INFO L226 Difference]: Without dead ends: 23 [2021-07-04 16:55:51,253 INFO L795 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 [2021-07-04 16:55:51,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-07-04 16:55:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-07-04 16:55:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 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) [2021-07-04 16:55:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2021-07-04 16:55:51,280 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 14 [2021-07-04 16:55:51,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 16:55:51,281 INFO L442 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-07-04 16:55:51,281 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-07-04 16:55:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2021-07-04 16:55:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-04 16:55:51,282 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 16:55:51,282 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 16:55:51,285 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 16:55:51,285 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 16:55:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 16:55:51,286 INFO L82 PathProgramCache]: Analyzing trace with hash 670750212, now seen corresponding path program 1 times [2021-07-04 16:55:51,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 16:55:51,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505189717] [2021-07-04 16:55:51,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:55:51,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 16:55:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 16:55:51,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:55:51,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:55:51,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:55:51,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 16:55:51,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:55:51,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 16:55:51,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 16:55:51,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 16:55:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 16:55:51,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 16:55:51,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505189717] [2021-07-04 16:55:51,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505189717] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 16:55:51,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 16:55:51,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-04 16:55:51,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543504150] [2021-07-04 16:55:51,374 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-04 16:55:51,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 16:55:51,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-04 16:55:51,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 16:55:51,379 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-07-04 16:55:51,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 16:55:51,478 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2021-07-04 16:55:51,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 16:55:51,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2021-07-04 16:55:51,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 16:55:51,480 INFO L225 Difference]: With dead ends: 56 [2021-07-04 16:55:51,480 INFO L226 Difference]: Without dead ends: 38 [2021-07-04 16:55:51,481 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 16:55:51,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-07-04 16:55:51,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-07-04 16:55:51,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 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) [2021-07-04 16:55:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-07-04 16:55:51,487 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2021-07-04 16:55:51,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 16:55:51,487 INFO L442 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-07-04 16:55:51,487 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-07-04 16:55:51,487 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2021-07-04 16:55:51,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-07-04 16:55:51,488 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 16:55:51,488 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 16:55:51,489 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-04 16:55:51,489 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 16:55:51,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 16:55:51,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1978137699, now seen corresponding path program 1 times [2021-07-04 16:55:51,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 16:55:51,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465581043] [2021-07-04 16:55:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:55:51,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 16:55:51,511 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-07-04 16:55:51,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631650902] [2021-07-04 16:55:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 16:55:51,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-04 16:55:51,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 16:55:51,525 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) [2021-07-04 16:55:51,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-04 16:55:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 16:55:51,607 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 16:55:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 16:55:51,628 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 16:55:51,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 16:55:51,687 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 16:55:51,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-04 16:55:51,890 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-04 16:55:51,890 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 16:55:51,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 04:55:51 BoogieIcfgContainer [2021-07-04 16:55:51,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 16:55:51,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 16:55:51,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 16:55:51,933 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 16:55:51,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 04:55:50" (3/4) ... [2021-07-04 16:55:51,935 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-04 16:55:51,991 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 16:55:51,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 16:55:51,996 INFO L168 Benchmark]: Toolchain (without parser) took 1836.65 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 47.1 MB in the beginning and 59.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:51,996 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 47.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 16:55:51,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.74 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 36.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:51,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.96 ms. Allocated memory is still 67.1 MB. Free memory was 36.7 MB in the beginning and 50.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:51,997 INFO L168 Benchmark]: Boogie Preprocessor took 40.83 ms. Allocated memory is still 67.1 MB. Free memory was 50.0 MB in the beginning and 48.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:51,998 INFO L168 Benchmark]: RCFGBuilder took 482.55 ms. Allocated memory is still 67.1 MB. Free memory was 48.5 MB in the beginning and 48.5 MB in the end (delta: 32.1 kB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:51,998 INFO L168 Benchmark]: TraceAbstraction took 984.95 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 48.1 MB in the beginning and 62.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:51,998 INFO L168 Benchmark]: Witness Printer took 62.68 ms. Allocated memory is still 86.0 MB. Free memory was 62.9 MB in the beginning and 59.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-04 16:55:52,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 47.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 170.74 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 36.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.96 ms. Allocated memory is still 67.1 MB. Free memory was 36.7 MB in the beginning and 50.0 MB in the end (delta: -13.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.83 ms. Allocated memory is still 67.1 MB. Free memory was 50.0 MB in the beginning and 48.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 482.55 ms. Allocated memory is still 67.1 MB. Free memory was 48.5 MB in the beginning and 48.5 MB in the end (delta: 32.1 kB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 984.95 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 48.1 MB in the beginning and 62.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 62.68 ms. Allocated memory is still 86.0 MB. Free memory was 62.9 MB in the beginning and 59.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 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 *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] i=0 VAL [N=1] [L32] COND TRUE i