./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ms5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/ms5f.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 43489357c504c9d567fbb67674e1a4536be31b16cc4b5a9d26541c9c9e4ad6c3 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 01:53:35,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 01:53:35,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 01:53:35,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 01:53:35,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 01:53:35,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 01:53:35,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 01:53:35,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 01:53:35,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 01:53:35,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 01:53:35,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 01:53:35,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 01:53:35,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 01:53:35,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 01:53:35,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 01:53:35,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 01:53:35,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 01:53:35,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 01:53:35,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 01:53:35,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 01:53:35,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 01:53:35,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 01:53:35,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 01:53:35,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 01:53:35,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 01:53:35,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 01:53:35,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 01:53:35,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 01:53:35,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 01:53:35,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 01:53:35,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 01:53:35,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 01:53:35,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 01:53:35,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 01:53:35,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 01:53:35,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 01:53:35,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 01:53:35,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 01:53:35,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 01:53:35,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 01:53:35,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 01:53:35,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 01:53:35,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 01:53:35,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 01:53:35,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 01:53:35,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 01:53:35,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 01:53:35,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 01:53:35,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 01:53:35,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 01:53:35,955 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 01:53:35,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 01:53:35,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 01:53:35,957 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 01:53:35,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 01:53:35,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 01:53:35,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 01:53:35,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 01:53:35,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 01:53:35,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 01:53:35,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 01:53:35,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 01:53:35,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 01:53:35,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 01:53:35,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 01:53:35,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 01:53:35,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 01:53:35,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 01:53:35,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 01:53:35,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 01:53:35,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43489357c504c9d567fbb67674e1a4536be31b16cc4b5a9d26541c9c9e4ad6c3 [2021-12-17 01:53:36,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 01:53:36,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 01:53:36,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 01:53:36,198 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 01:53:36,203 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 01:53:36,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms5f.c [2021-12-17 01:53:36,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c270040a4/f5da2061e56544239b69113a3e0d2564/FLAG361a76e79 [2021-12-17 01:53:36,657 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 01:53:36,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms5f.c [2021-12-17 01:53:36,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c270040a4/f5da2061e56544239b69113a3e0d2564/FLAG361a76e79 [2021-12-17 01:53:37,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c270040a4/f5da2061e56544239b69113a3e0d2564 [2021-12-17 01:53:37,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 01:53:37,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 01:53:37,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 01:53:37,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 01:53:37,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 01:53:37,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48619255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37, skipping insertion in model container [2021-12-17 01:53:37,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 01:53:37,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 01:53:37,253 WARN L230 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/ms5f.c[587,600] [2021-12-17 01:53:37,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 01:53:37,286 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 01:53:37,297 WARN L230 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/ms5f.c[587,600] [2021-12-17 01:53:37,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 01:53:37,320 INFO L208 MainTranslator]: Completed translation [2021-12-17 01:53:37,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37 WrapperNode [2021-12-17 01:53:37,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 01:53:37,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 01:53:37,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 01:53:37,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 01:53:37,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,356 INFO L137 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-12-17 01:53:37,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 01:53:37,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 01:53:37,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 01:53:37,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 01:53:37,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 01:53:37,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 01:53:37,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 01:53:37,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 01:53:37,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (1/1) ... [2021-12-17 01:53:37,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 01:53:37,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 01:53:37,437 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) [2021-12-17 01:53:37,464 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 [2021-12-17 01:53:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 01:53:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 01:53:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 01:53:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 01:53:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-17 01:53:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 01:53:37,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 01:53:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 01:53:37,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 01:53:37,550 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 01:53:37,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 01:53:37,670 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 01:53:37,676 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 01:53:37,676 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 01:53:37,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:53:37 BoogieIcfgContainer [2021-12-17 01:53:37,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 01:53:37,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 01:53:37,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 01:53:37,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 01:53:37,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 01:53:37" (1/3) ... [2021-12-17 01:53:37,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244c837e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 01:53:37, skipping insertion in model container [2021-12-17 01:53:37,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 01:53:37" (2/3) ... [2021-12-17 01:53:37,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244c837e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 01:53:37, skipping insertion in model container [2021-12-17 01:53:37,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:53:37" (3/3) ... [2021-12-17 01:53:37,686 INFO L111 eAbstractionObserver]: Analyzing ICFG ms5f.c [2021-12-17 01:53:37,690 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 01:53:37,703 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 01:53:37,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 01:53:37,737 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-17 01:53:37,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 01:53:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 01:53:37,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:53:37,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:53:37,772 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:53:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:53:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2021-12-17 01:53:37,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:53:37,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567401971] [2021-12-17 01:53:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:53:37,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:53:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:53:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:53:37,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:53:37,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567401971] [2021-12-17 01:53:37,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567401971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 01:53:37,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 01:53:37,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 01:53:37,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257612434] [2021-12-17 01:53:37,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 01:53:37,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 01:53:37,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:53:37,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 01:53:37,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 01:53:37,963 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:53:37,974 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-12-17 01:53:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 01:53:37,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 01:53:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:53:37,980 INFO L225 Difference]: With dead ends: 34 [2021-12-17 01:53:37,980 INFO L226 Difference]: Without dead ends: 15 [2021-12-17 01:53:37,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 01:53:37,985 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 01:53:37,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 01:53:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-17 01:53:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-17 01:53:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-17 01:53:38,005 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2021-12-17 01:53:38,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:53:38,006 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-17 01:53:38,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:38,006 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-12-17 01:53:38,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 01:53:38,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:53:38,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:53:38,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 01:53:38,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:53:38,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:53:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2021-12-17 01:53:38,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:53:38,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565211220] [2021-12-17 01:53:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:53:38,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:53:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 01:53:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 01:53:38,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 01:53:38,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565211220] [2021-12-17 01:53:38,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565211220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 01:53:38,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 01:53:38,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 01:53:38,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379789438] [2021-12-17 01:53:38,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 01:53:38,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 01:53:38,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 01:53:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 01:53:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 01:53:38,092 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 01:53:38,132 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-12-17 01:53:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 01:53:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 01:53:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 01:53:38,133 INFO L225 Difference]: With dead ends: 28 [2021-12-17 01:53:38,134 INFO L226 Difference]: Without dead ends: 20 [2021-12-17 01:53:38,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 01:53:38,135 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 01:53:38,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 01:53:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-17 01:53:38,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-12-17 01:53:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:38,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-12-17 01:53:38,139 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2021-12-17 01:53:38,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 01:53:38,139 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-12-17 01:53:38,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 01:53:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-12-17 01:53:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-17 01:53:38,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 01:53:38,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 01:53:38,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 01:53:38,140 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 01:53:38,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 01:53:38,141 INFO L85 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2021-12-17 01:53:38,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 01:53:38,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806696959] [2021-12-17 01:53:38,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 01:53:38,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 01:53:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 01:53:38,178 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 01:53:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 01:53:38,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 01:53:38,233 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 01:53:38,234 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 01:53:38,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 01:53:38,238 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-17 01:53:38,240 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 01:53:38,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 01:53:38 BoogieIcfgContainer [2021-12-17 01:53:38,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 01:53:38,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 01:53:38,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 01:53:38,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 01:53:38,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 01:53:37" (3/4) ... [2021-12-17 01:53:38,284 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 01:53:38,312 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 01:53:38,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 01:53:38,313 INFO L158 Benchmark]: Toolchain (without parser) took 1235.62ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 67.0MB in the beginning and 101.0MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 01:53:38,314 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 73.0MB in the end (delta: 25.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 01:53:38,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.45ms. Allocated memory is still 100.7MB. Free memory was 66.7MB in the beginning and 76.6MB in the end (delta: -9.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-12-17 01:53:38,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.49ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 74.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 01:53:38,314 INFO L158 Benchmark]: Boogie Preprocessor took 23.63ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 01:53:38,315 INFO L158 Benchmark]: RCFGBuilder took 296.49ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 63.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 01:53:38,315 INFO L158 Benchmark]: TraceAbstraction took 603.01ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 63.0MB in the beginning and 103.1MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 01:53:38,315 INFO L158 Benchmark]: Witness Printer took 30.47ms. Allocated memory is still 127.9MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 01:53:38,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 73.0MB in the end (delta: 25.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.45ms. Allocated memory is still 100.7MB. Free memory was 66.7MB in the beginning and 76.6MB in the end (delta: -9.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.49ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 74.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.63ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.49ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 63.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 603.01ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 63.0MB in the beginning and 103.1MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.47ms. Allocated memory is still 127.9MB. Free memory was 103.1MB in the beginning and 101.0MB 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [a={-1:0}, i=0, N=1, sum={9:0}] [L31] COND TRUE i 4*N) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, N=1] [L15] reach_error() VAL [\old(cond)=0, cond=0, N=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 30 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 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! [2021-12-17 01:53:38,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE