./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/array-2.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/loops/array-2.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 8df294a242896c5bf5c0de59a6565bdcc2051c441282e921edcd2c4fccba4c24 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 09:24:50,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 09:24:50,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 09:24:50,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 09:24:50,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 09:24:50,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 09:24:50,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 09:24:50,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 09:24:50,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 09:24:50,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 09:24:50,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 09:24:50,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 09:24:50,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 09:24:50,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 09:24:50,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 09:24:50,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 09:24:50,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 09:24:50,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 09:24:50,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 09:24:50,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 09:24:50,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 09:24:50,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 09:24:50,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 09:24:50,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 09:24:50,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 09:24:50,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 09:24:50,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 09:24:50,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 09:24:50,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 09:24:50,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 09:24:50,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 09:24:50,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 09:24:50,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 09:24:50,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 09:24:50,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 09:24:50,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 09:24:50,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 09:24:50,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 09:24:50,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 09:24:50,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 09:24:50,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 09:24:50,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 09:24:50,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 09:24:50,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 09:24:50,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 09:24:50,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 09:24:50,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 09:24:50,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 09:24:50,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 09:24:50,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 09:24:50,824 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 09:24:50,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 09:24:50,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 09:24:50,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 09:24:50,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 09:24:50,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 09:24:50,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 09:24:50,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 09:24:50,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 09:24:50,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 09:24:50,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 09:24:50,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 09:24:50,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 09:24:50,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 09:24:50,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 09:24:50,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 09:24:50,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 09:24:50,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 09:24:50,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 09:24:50,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 09:24:50,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 09:24:50,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 09:24:50,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 09:24:50,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 09:24:50,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 09:24:50,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 09:24:50,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8df294a242896c5bf5c0de59a6565bdcc2051c441282e921edcd2c4fccba4c24 [2021-12-17 09:24:51,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 09:24:51,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 09:24:51,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 09:24:51,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 09:24:51,100 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 09:24:51,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/array-2.c [2021-12-17 09:24:51,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477fbc3b0/5e7b8b53d15944308cb4ae1131d9403b/FLAG6a9626355 [2021-12-17 09:24:51,523 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 09:24:51,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/array-2.c [2021-12-17 09:24:51,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477fbc3b0/5e7b8b53d15944308cb4ae1131d9403b/FLAG6a9626355 [2021-12-17 09:24:51,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477fbc3b0/5e7b8b53d15944308cb4ae1131d9403b [2021-12-17 09:24:51,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 09:24:51,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 09:24:51,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 09:24:51,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 09:24:51,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 09:24:51,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:24:51" (1/1) ... [2021-12-17 09:24:51,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591f52cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:51, skipping insertion in model container [2021-12-17 09:24:51,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 09:24:51" (1/1) ... [2021-12-17 09:24:51,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 09:24:51,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 09:24:52,099 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/loops/array-2.c[319,332] [2021-12-17 09:24:52,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 09:24:52,131 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 09:24:52,143 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/loops/array-2.c[319,332] [2021-12-17 09:24:52,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 09:24:52,174 INFO L208 MainTranslator]: Completed translation [2021-12-17 09:24:52,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52 WrapperNode [2021-12-17 09:24:52,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 09:24:52,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 09:24:52,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 09:24:52,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 09:24:52,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,212 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2021-12-17 09:24:52,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 09:24:52,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 09:24:52,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 09:24:52,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 09:24:52,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 09:24:52,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 09:24:52,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 09:24:52,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 09:24:52,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (1/1) ... [2021-12-17 09:24:52,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 09:24:52,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 09:24:52,283 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 09:24:52,285 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 09:24:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 09:24:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 09:24:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 09:24:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 09:24:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 09:24:52,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 09:24:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 09:24:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 09:24:52,363 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 09:24:52,364 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 09:24:52,446 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 09:24:52,451 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 09:24:52,452 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 09:24:52,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:24:52 BoogieIcfgContainer [2021-12-17 09:24:52,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 09:24:52,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 09:24:52,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 09:24:52,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 09:24:52,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 09:24:51" (1/3) ... [2021-12-17 09:24:52,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30491ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:24:52, skipping insertion in model container [2021-12-17 09:24:52,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 09:24:52" (2/3) ... [2021-12-17 09:24:52,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30491ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 09:24:52, skipping insertion in model container [2021-12-17 09:24:52,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:24:52" (3/3) ... [2021-12-17 09:24:52,461 INFO L111 eAbstractionObserver]: Analyzing ICFG array-2.c [2021-12-17 09:24:52,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 09:24:52,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 09:24:52,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 09:24:52,508 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 09:24:52,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 09:24:52,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 09:24:52,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-17 09:24:52,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 09:24:52,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-17 09:24:52,529 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 09:24:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 09:24:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-12-17 09:24:52,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 09:24:52,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054063812] [2021-12-17 09:24:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 09:24:52,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 09:24:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 09:24:52,693 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 09:24:52,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 09:24:52,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054063812] [2021-12-17 09:24:52,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054063812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 09:24:52,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 09:24:52,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 09:24:52,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237967534] [2021-12-17 09:24:52,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 09:24:52,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 09:24:52,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 09:24:52,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 09:24:52,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 09:24:52,737 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 3.0) internal successors, (6), 2 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 09:24:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 09:24:52,753 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-12-17 09:24:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 09:24:52,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:24:52,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 09:24:52,762 INFO L225 Difference]: With dead ends: 21 [2021-12-17 09:24:52,762 INFO L226 Difference]: Without dead ends: 9 [2021-12-17 09:24:52,765 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 09:24:52,772 INFO L933 BasicCegarLoop]: 14 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, 14 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 09:24:52,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 09:24:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-12-17 09:24:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-17 09:24:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 09:24:52,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-17 09:24:52,840 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-12-17 09:24:52,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 09:24:52,840 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-17 09:24:52,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 09:24:52,840 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-12-17 09:24:52,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-17 09:24:52,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 09:24:52,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-17 09:24:52,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 09:24:52,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 09:24:52,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 09:24:52,842 INFO L85 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2021-12-17 09:24:52,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 09:24:52,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245647078] [2021-12-17 09:24:52,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 09:24:52,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 09:24:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 09:24:52,999 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 09:24:52,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 09:24:53,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245647078] [2021-12-17 09:24:53,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245647078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 09:24:53,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 09:24:53,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 09:24:53,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786416357] [2021-12-17 09:24:53,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 09:24:53,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 09:24:53,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 09:24:53,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 09:24:53,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 09:24:53,009 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. 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 09:24:53,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 09:24:53,036 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-17 09:24:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 09:24:53,037 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 09:24:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 09:24:53,038 INFO L225 Difference]: With dead ends: 16 [2021-12-17 09:24:53,038 INFO L226 Difference]: Without dead ends: 12 [2021-12-17 09:24:53,039 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 09:24:53,040 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 09:24:53,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 09:24:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-17 09:24:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-12-17 09:24:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 09:24:53,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-12-17 09:24:53,046 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-12-17 09:24:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 09:24:53,047 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-17 09:24:53,048 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 09:24:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-12-17 09:24:53,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-17 09:24:53,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 09:24:53,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 09:24:53,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 09:24:53,052 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 09:24:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 09:24:53,053 INFO L85 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2021-12-17 09:24:53,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 09:24:53,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195719880] [2021-12-17 09:24:53,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 09:24:53,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 09:24:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 09:24:53,086 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 09:24:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 09:24:53,151 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 09:24:53,151 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 09:24:53,152 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 09:24:53,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 09:24:53,162 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-17 09:24:53,165 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 09:24:53,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 09:24:53 BoogieIcfgContainer [2021-12-17 09:24:53,195 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 09:24:53,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 09:24:53,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 09:24:53,196 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 09:24:53,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 09:24:52" (3/4) ... [2021-12-17 09:24:53,199 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-17 09:24:53,238 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 09:24:53,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 09:24:53,239 INFO L158 Benchmark]: Toolchain (without parser) took 1282.50ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 67.6MB in the beginning and 81.1MB in the end (delta: -13.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-17 09:24:53,239 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 09:24:53,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.56ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 73.9MB in the end (delta: -6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 09:24:53,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.50ms. Allocated memory is still 96.5MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 09:24:53,240 INFO L158 Benchmark]: Boogie Preprocessor took 40.76ms. Allocated memory is still 96.5MB. Free memory was 72.2MB in the beginning and 71.4MB in the end (delta: 804.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 09:24:53,241 INFO L158 Benchmark]: RCFGBuilder took 198.55ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 61.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 09:24:53,241 INFO L158 Benchmark]: TraceAbstraction took 740.01ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.3MB in the beginning and 82.6MB in the end (delta: -21.3MB). Peak memory consumption was 141.5kB. Max. memory is 16.1GB. [2021-12-17 09:24:53,241 INFO L158 Benchmark]: Witness Printer took 42.01ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 09:24:53,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.56ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 73.9MB in the end (delta: -6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.50ms. Allocated memory is still 96.5MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.76ms. Allocated memory is still 96.5MB. Free memory was 72.2MB in the beginning and 71.4MB in the end (delta: 804.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 198.55ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 61.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 740.01ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.3MB in the beginning and 82.6MB in the end (delta: -21.3MB). Peak memory consumption was 141.5kB. Max. memory is 16.1GB. * Witness Printer took 42.01ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.1MB in the end (delta: 1.5MB). 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: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int SIZE=1; [L16] unsigned int j,k; [L17] int array[SIZE], menor; [L19] menor = __VERIFIER_nondet_int() [L21] j=0 VAL [array={5:0}, j=0, menor=0, SIZE=1] [L21] COND TRUE jmenor) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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 09:24:53,288 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