./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/condmf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/condmf.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 e84fa47d445c1764a4d529303801930082611d3b .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 01:49:55,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 01:49:55,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 01:49:55,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 01:49:55,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 01:49:55,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 01:49:55,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 01:49:55,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 01:49:55,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 01:49:55,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 01:49:55,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 01:49:55,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 01:49:55,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 01:49:55,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 01:49:55,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 01:49:55,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 01:49:55,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 01:49:55,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 01:49:55,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 01:49:55,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 01:49:55,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 01:49:55,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 01:49:55,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 01:49:55,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 01:49:55,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 01:49:55,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 01:49:55,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 01:49:55,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 01:49:55,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 01:49:55,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 01:49:55,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 01:49:55,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 01:49:55,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 01:49:55,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 01:49:55,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 01:49:55,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 01:49:55,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 01:49:55,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 01:49:55,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 01:49:55,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 01:49:55,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 01:49:55,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 01:49:55,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 01:49:55,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 01:49:55,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 01:49:55,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 01:49:55,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 01:49:55,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 01:49:55,505 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 01:49:55,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 01:49:55,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 01:49:55,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 01:49:55,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 01:49:55,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 01:49:55,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 01:49:55,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 01:49:55,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 01:49:55,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 01:49:55,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 01:49:55,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 01:49:55,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 01:49:55,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 01:49:55,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 01:49:55,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 01:49:55,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 01:49:55,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 01:49:55,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 01:49:55,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 01:49:55,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 01:49:55,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 01:49:55,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 01:49:55,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 01:49:55,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e84fa47d445c1764a4d529303801930082611d3b [2021-08-29 01:49:55,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 01:49:55,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 01:49:55,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 01:49:55,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 01:49:55,830 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 01:49:55,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/condmf.c [2021-08-29 01:49:55,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7af85fe1/b985d31550f04f59a83b5e10edbac4c2/FLAGbaffdb12b [2021-08-29 01:49:56,364 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 01:49:56,364 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/condmf.c [2021-08-29 01:49:56,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7af85fe1/b985d31550f04f59a83b5e10edbac4c2/FLAGbaffdb12b [2021-08-29 01:49:56,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7af85fe1/b985d31550f04f59a83b5e10edbac4c2 [2021-08-29 01:49:56,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 01:49:56,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 01:49:56,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 01:49:56,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 01:49:56,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 01:49:56,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:56,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6246a8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56, skipping insertion in model container [2021-08-29 01:49:56,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:56,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 01:49:56,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 01:49:56,898 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/condmf.c[589,602] [2021-08-29 01:49:56,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 01:49:56,920 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 01:49:56,929 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/condmf.c[589,602] [2021-08-29 01:49:56,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 01:49:56,957 INFO L208 MainTranslator]: Completed translation [2021-08-29 01:49:56,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56 WrapperNode [2021-08-29 01:49:56,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 01:49:56,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 01:49:56,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 01:49:56,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 01:49:56,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:56,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 01:49:57,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 01:49:57,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 01:49:57,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 01:49:57,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 01:49:57,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 01:49:57,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 01:49:57,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 01:49:57,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (1/1) ... [2021-08-29 01:49:57,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 01:49:57,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 01:49:57,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 01:49:57,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 01:49:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 01:49:57,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 01:49:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 01:49:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-29 01:49:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 01:49:57,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 01:49:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 01:49:57,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 01:49:57,342 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-08-29 01:49:57,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:49:57 BoogieIcfgContainer [2021-08-29 01:49:57,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 01:49:57,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 01:49:57,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 01:49:57,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 01:49:57,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:49:56" (1/3) ... [2021-08-29 01:49:57,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2902fc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:49:57, skipping insertion in model container [2021-08-29 01:49:57,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:49:56" (2/3) ... [2021-08-29 01:49:57,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2902fc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:49:57, skipping insertion in model container [2021-08-29 01:49:57,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:49:57" (3/3) ... [2021-08-29 01:49:57,352 INFO L111 eAbstractionObserver]: Analyzing ICFG condmf.c [2021-08-29 01:49:57,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 01:49:57,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 01:49:57,426 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 01:49:57,432 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 01:49:57,432 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 01:49:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 01:49:57,449 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 01:49:57,450 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 01:49:57,450 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 01:49:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 01:49:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1828392228, now seen corresponding path program 1 times [2021-08-29 01:49:57,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 01:49:57,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102801294] [2021-08-29 01:49:57,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 01:49:57,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 01:49:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 01:49:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 01:49:57,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 01:49:57,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102801294] [2021-08-29 01:49:57,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102801294] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 01:49:57,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 01:49:57,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 01:49:57,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593424909] [2021-08-29 01:49:57,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 01:49:57,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 01:49:57,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 01:49:57,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 01:49:57,641 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 01:49:57,690 INFO L93 Difference]: Finished difference Result 40 states and 56 transitions. [2021-08-29 01:49:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 01:49:57,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 01:49:57,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 01:49:57,699 INFO L225 Difference]: With dead ends: 40 [2021-08-29 01:49:57,699 INFO L226 Difference]: Without dead ends: 18 [2021-08-29 01:49:57,701 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 01:49:57,704 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.91ms IncrementalHoareTripleChecker+Time [2021-08-29 01:49:57,705 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.28ms Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 35.91ms Time] [2021-08-29 01:49:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-08-29 01:49:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-29 01:49:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-08-29 01:49:57,742 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2021-08-29 01:49:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 01:49:57,743 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-08-29 01:49:57,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-08-29 01:49:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 01:49:57,745 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 01:49:57,745 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 01:49:57,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 01:49:57,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 01:49:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 01:49:57,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1148333858, now seen corresponding path program 1 times [2021-08-29 01:49:57,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 01:49:57,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592532437] [2021-08-29 01:49:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 01:49:57,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 01:49:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 01:49:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 01:49:57,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 01:49:57,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592532437] [2021-08-29 01:49:57,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592532437] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 01:49:57,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 01:49:57,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 01:49:57,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460034966] [2021-08-29 01:49:57,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 01:49:57,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 01:49:57,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 01:49:57,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 01:49:57,865 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 01:49:57,939 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2021-08-29 01:49:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 01:49:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 01:49:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 01:49:57,940 INFO L225 Difference]: With dead ends: 40 [2021-08-29 01:49:57,940 INFO L226 Difference]: Without dead ends: 29 [2021-08-29 01:49:57,941 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.77ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 01:49:57,942 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.38ms IncrementalHoareTripleChecker+Time [2021-08-29 01:49:57,943 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 63.38ms Time] [2021-08-29 01:49:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-29 01:49:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2021-08-29 01:49:57,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-08-29 01:49:57,948 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2021-08-29 01:49:57,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 01:49:57,949 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-08-29 01:49:57,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 01:49:57,949 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-08-29 01:49:57,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 01:49:57,950 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 01:49:57,950 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 01:49:57,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 01:49:57,951 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 01:49:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 01:49:57,951 INFO L82 PathProgramCache]: Analyzing trace with hash -2142875084, now seen corresponding path program 1 times [2021-08-29 01:49:57,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 01:49:57,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410125030] [2021-08-29 01:49:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 01:49:57,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 01:49:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 01:49:58,013 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 01:49:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 01:49:58,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 01:49:58,089 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 01:49:58,090 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 01:49:58,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 01:49:58,102 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 01:49:58,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:49:58 BoogieIcfgContainer [2021-08-29 01:49:58,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 01:49:58,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 01:49:58,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 01:49:58,134 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 01:49:58,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:49:57" (3/4) ... [2021-08-29 01:49:58,136 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 01:49:58,170 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 01:49:58,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 01:49:58,171 INFO L158 Benchmark]: Toolchain (without parser) took 1407.09ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 35.9MB in the beginning and 43.9MB in the end (delta: -8.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-08-29 01:49:58,171 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 01:49:58,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.82ms. Allocated memory is still 56.6MB. Free memory was 35.6MB in the beginning and 40.8MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 01:49:58,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.00ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 39.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 01:49:58,173 INFO L158 Benchmark]: Boogie Preprocessor took 44.50ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 38.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 01:49:58,173 INFO L158 Benchmark]: RCFGBuilder took 273.51ms. Allocated memory is still 56.6MB. Free memory was 38.1MB in the beginning and 28.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 01:49:58,174 INFO L158 Benchmark]: TraceAbstraction took 787.21ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 28.4MB in the beginning and 46.1MB in the end (delta: -17.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-08-29 01:49:58,175 INFO L158 Benchmark]: Witness Printer took 36.48ms. Allocated memory is still 77.6MB. Free memory was 46.1MB in the beginning and 43.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 01:49:58,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.82ms. Allocated memory is still 56.6MB. Free memory was 35.6MB in the beginning and 40.8MB in the end (delta: -5.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.00ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 39.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.50ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 38.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.51ms. Allocated memory is still 56.6MB. Free memory was 38.1MB in the beginning and 28.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 787.21ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 28.4MB in the beginning and 46.1MB in the end (delta: -17.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 36.48ms. Allocated memory is still 77.6MB. Free memory was 46.1MB in the beginning and 43.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] int *a = malloc(sizeof(int)*N); [L30] i = 0 VAL [N=1] [L30] COND TRUE i < N [L32] a[i] = 0 VAL [N=1] [L30] i++ VAL [N=1] [L30] COND FALSE !(i < N) VAL [N=1] [L35] i = 0 VAL [N=1] [L35] COND TRUE i < N VAL [N=1] [L37] COND TRUE N%2 == 1 [L39] EXPR a[i] [L39] a[i] = a[i] + 2 [L35] i++ VAL [N=1] [L35] COND FALSE !(i < N) VAL [N=1] [L47] i = 0 VAL [N=1] [L47] COND TRUE i < N [L49] a[i] [L15] COND TRUE !(cond) VAL [N=1] [L15] reach_error() VAL [N=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 678.25ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 10.40ms, AutomataDifference: 171.10ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.50ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 99.29ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 76.37ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 67 mSolverCounterSat, 1.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.80ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 29.77ms AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.56ms SsaConstructionTime, 89.44ms SatisfiabilityAnalysisTime, 143.68ms InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-29 01:49:58,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...