./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test06.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/ldv-regression/test06.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 7e4b751f1cff14576af7e2c8fb6f6f5af2d2fb8f159c6730e8a5d44ae1632f58 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 08:09:24,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 08:09:24,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 08:09:24,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 08:09:24,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 08:09:24,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 08:09:24,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 08:09:24,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 08:09:24,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 08:09:24,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 08:09:24,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 08:09:24,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 08:09:24,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 08:09:24,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 08:09:24,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 08:09:24,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 08:09:24,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 08:09:24,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 08:09:24,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 08:09:24,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 08:09:24,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 08:09:24,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 08:09:24,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 08:09:24,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 08:09:24,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 08:09:24,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 08:09:24,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 08:09:24,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 08:09:24,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 08:09:24,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 08:09:24,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 08:09:24,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 08:09:24,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 08:09:24,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 08:09:24,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 08:09:24,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 08:09:24,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 08:09:24,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 08:09:24,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 08:09:24,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 08:09:24,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 08:09:24,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 08:09:24,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 08:09:24,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 08:09:24,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 08:09:24,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 08:09:24,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 08:09:24,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 08:09:24,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 08:09:24,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 08:09:24,370 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 08:09:24,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 08:09:24,371 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 08:09:24,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 08:09:24,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 08:09:24,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 08:09:24,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 08:09:24,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 08:09:24,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 08:09:24,372 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 08:09:24,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 08:09:24,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 08:09:24,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 08:09:24,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 08:09:24,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 08:09:24,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 08:09:24,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 08:09:24,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 08:09:24,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 08:09:24,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 08:09:24,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 08:09:24,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 08:09:24,374 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 08:09:24,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 08:09:24,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 08:09:24,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 08:09:24,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4b751f1cff14576af7e2c8fb6f6f5af2d2fb8f159c6730e8a5d44ae1632f58 [2021-12-17 08:09:24,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 08:09:24,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 08:09:24,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 08:09:24,650 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 08:09:24,651 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 08:09:24,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test06.c [2021-12-17 08:09:24,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9740e25/2e6e7e65dfb44dedb4b50cd5e00f3fd0/FLAG793f91708 [2021-12-17 08:09:25,068 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 08:09:25,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test06.c [2021-12-17 08:09:25,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9740e25/2e6e7e65dfb44dedb4b50cd5e00f3fd0/FLAG793f91708 [2021-12-17 08:09:25,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9740e25/2e6e7e65dfb44dedb4b50cd5e00f3fd0 [2021-12-17 08:09:25,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 08:09:25,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 08:09:25,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 08:09:25,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 08:09:25,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 08:09:25,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357c569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25, skipping insertion in model container [2021-12-17 08:09:25,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 08:09:25,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 08:09:25,263 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/ldv-regression/test06.c[670,683] [2021-12-17 08:09:25,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 08:09:25,273 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 08:09:25,295 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/ldv-regression/test06.c[670,683] [2021-12-17 08:09:25,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 08:09:25,311 INFO L208 MainTranslator]: Completed translation [2021-12-17 08:09:25,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25 WrapperNode [2021-12-17 08:09:25,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 08:09:25,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 08:09:25,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 08:09:25,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 08:09:25,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,350 INFO L137 Inliner]: procedures = 16, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 86 [2021-12-17 08:09:25,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 08:09:25,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 08:09:25,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 08:09:25,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 08:09:25,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 08:09:25,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 08:09:25,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 08:09:25,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 08:09:25,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (1/1) ... [2021-12-17 08:09:25,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 08:09:25,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 08:09:25,424 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 08:09:25,451 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 08:09:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-17 08:09:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 08:09:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 08:09:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 08:09:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-17 08:09:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 08:09:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 08:09:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 08:09:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 08:09:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 08:09:25,525 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 08:09:25,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 08:09:25,723 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 08:09:25,733 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 08:09:25,733 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 08:09:25,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:09:25 BoogieIcfgContainer [2021-12-17 08:09:25,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 08:09:25,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 08:09:25,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 08:09:25,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 08:09:25,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 08:09:25" (1/3) ... [2021-12-17 08:09:25,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97d2e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:09:25, skipping insertion in model container [2021-12-17 08:09:25,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 08:09:25" (2/3) ... [2021-12-17 08:09:25,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97d2e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 08:09:25, skipping insertion in model container [2021-12-17 08:09:25,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:09:25" (3/3) ... [2021-12-17 08:09:25,741 INFO L111 eAbstractionObserver]: Analyzing ICFG test06.c [2021-12-17 08:09:25,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 08:09:25,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 08:09:25,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 08:09:25,796 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 08:09:25,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 08:09:25,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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) [2021-12-17 08:09:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-17 08:09:25,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:25,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-17 08:09:25,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:25,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:25,828 INFO L85 PathProgramCache]: Analyzing trace with hash 889629865, now seen corresponding path program 1 times [2021-12-17 08:09:25,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:25,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930704171] [2021-12-17 08:09:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:25,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 08:09:26,181 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 08:09:26,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 08:09:26,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930704171] [2021-12-17 08:09:26,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930704171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 08:09:26,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 08:09:26,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 08:09:26,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151392577] [2021-12-17 08:09:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 08:09:26,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 08:09:26,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 08:09:26,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 08:09:26,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 08:09:26,215 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 08:09:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 08:09:26,236 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-12-17 08:09:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 08:09:26,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-12-17 08:09:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 08:09:26,255 INFO L225 Difference]: With dead ends: 18 [2021-12-17 08:09:26,255 INFO L226 Difference]: Without dead ends: 8 [2021-12-17 08:09:26,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 08:09:26,263 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 08:09:26,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 08:09:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-17 08:09:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-17 08:09:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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 08:09:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-12-17 08:09:26,295 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2021-12-17 08:09:26,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 08:09:26,295 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-12-17 08:09:26,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 08:09:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-12-17 08:09:26,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-17 08:09:26,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 08:09:26,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-17 08:09:26,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 08:09:26,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 08:09:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 08:09:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1804905802, now seen corresponding path program 1 times [2021-12-17 08:09:26,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 08:09:26,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493404124] [2021-12-17 08:09:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 08:09:26,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 08:09:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 08:09:26,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 08:09:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 08:09:26,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 08:09:26,462 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 08:09:26,464 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 08:09:26,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 08:09:26,470 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 08:09:26,473 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 08:09:26,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 08:09:26 BoogieIcfgContainer [2021-12-17 08:09:26,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 08:09:26,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 08:09:26,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 08:09:26,510 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 08:09:26,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 08:09:25" (3/4) ... [2021-12-17 08:09:26,512 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 08:09:26,542 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 08:09:26,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 08:09:26,543 INFO L158 Benchmark]: Toolchain (without parser) took 1456.45ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 63.5MB in the beginning and 79.0MB in the end (delta: -15.5MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,543 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 08:09:26,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.76ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 76.5MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.97ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 74.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,544 INFO L158 Benchmark]: Boogie Preprocessor took 39.08ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,545 INFO L158 Benchmark]: RCFGBuilder took 342.83ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 59.5MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,545 INFO L158 Benchmark]: TraceAbstraction took 773.60ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 81.5MB in the end (delta: -22.5MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,546 INFO L158 Benchmark]: Witness Printer took 31.93ms. Allocated memory is still 125.8MB. Free memory was 81.5MB in the beginning and 79.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 08:09:26,548 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 is still 79.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.76ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 76.5MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.97ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 74.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.08ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.83ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 59.5MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 773.60ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 81.5MB in the end (delta: -22.5MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 31.93ms. Allocated memory is still 125.8MB. Free memory was 81.5MB in the beginning and 79.0MB in the end (delta: 2.5MB). 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: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int a, b; [L24] int *p1, *p2; [L26] p1 = &a [L27] p2 = &b [L29] b = 1 [L30] a = 5 [L32] EXPR \read(a) [L32] a-- [L34] EXPR \read(a) [L34] CALL, EXPR f(a, &p1, &p2) [L14] COND TRUE a == 4 [L15] CALL g(p1, p2) [L7] EXPR \read(**p2) [L7] int *pq = *p2; [L9] EXPR \read(**p2) [L9] *p1 = *p2 [L10] *pq = 0 VAL [p1={6:0}, p1={6:0}, p2={8:0}, p2={8:0}, pq={5:0}] [L15] RET g(p1, p2) [L16] return 1; VAL [\old(a)=4, \result=1, a=4, p1={6:0}, p1={6:0}, p2={8:0}, p2={8:0}] [L34] RET, EXPR f(a, &p1, &p2) [L34] a = f(a, &p1, &p2) [L36] EXPR \read(*p1) VAL [\read(*p1)=0, \read(*p1)={5:0}, a={7:0}, b={5:0}, p1={6:0}, p2={8:0}] [L36] COND TRUE *p1 == 0 [L42] reach_error() VAL [a={7:0}, b={5:0}, p1={6:0}, p2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, 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, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 08:09:26,591 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... --- 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