./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test12.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer --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 5c53a6d62fed0622838fea72ad24550253a2b4bc .................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:17:52,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:17:52,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:17:52,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:17:52,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:17:52,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:17:52,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:17:52,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:17:52,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:17:52,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:17:52,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:17:52,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:17:52,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:17:52,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:17:52,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:17:52,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:17:52,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:17:52,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:17:52,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:17:52,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:17:52,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:17:52,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:17:52,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:17:52,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:17:52,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:17:52,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:17:52,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:17:52,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:17:52,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:17:52,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:17:52,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:17:52,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:17:52,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:17:52,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:17:52,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:17:52,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:17:52,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:17:52,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:17:52,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:17:52,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:17:52,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:17:52,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:17:52,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:17:52,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:17:52,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:17:52,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:17:52,976 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:17:52,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:17:52,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:17:52,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:17:52,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:17:52,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:17:52,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:17:52,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:17:52,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:17:52,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:17:52,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:17:52,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:17:52,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:17:52,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:17:52,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:17:52,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:17:52,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:17:52,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:52,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:17:52,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:17:52,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:17:52,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:17:52,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:17:52,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:17:52,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:17:52,984 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:/tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c53a6d62fed0622838fea72ad24550253a2b4bc [2020-11-28 03:17:53,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:17:53,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:17:53,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:17:53,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:17:53,314 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:17:53,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test12.c [2020-11-28 03:17:53,391 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/data/371cec34a/9ea8786ffa8c4bcaa63d4cf4b6b6feb4/FLAG38a1e9738 [2020-11-28 03:17:53,925 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:17:53,926 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/sv-benchmarks/c/ldv-regression/test12.c [2020-11-28 03:17:53,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/data/371cec34a/9ea8786ffa8c4bcaa63d4cf4b6b6feb4/FLAG38a1e9738 [2020-11-28 03:17:54,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/data/371cec34a/9ea8786ffa8c4bcaa63d4cf4b6b6feb4 [2020-11-28 03:17:54,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:17:54,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:17:54,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:54,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:17:54,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:17:54,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf28b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54, skipping insertion in model container [2020-11-28 03:17:54,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:17:54,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:17:54,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:54,520 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:17:54,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:54,564 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:17:54,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54 WrapperNode [2020-11-28 03:17:54,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:54,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:54,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:17:54,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:17:54,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:54,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:17:54,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:17:54,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:17:54,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... [2020-11-28 03:17:54,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:17:54,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:17:54,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:17:54,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:17:54,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:17:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:17:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:17:54,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:17:54,946 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:17:54,947 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:17:54,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:54 BoogieIcfgContainer [2020-11-28 03:17:54,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:17:54,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:17:54,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:17:54,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:17:54,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:54" (1/3) ... [2020-11-28 03:17:54,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b6fdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:54, skipping insertion in model container [2020-11-28 03:17:54,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:54" (2/3) ... [2020-11-28 03:17:54,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b6fdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:54, skipping insertion in model container [2020-11-28 03:17:54,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:54" (3/3) ... [2020-11-28 03:17:54,960 INFO L111 eAbstractionObserver]: Analyzing ICFG test12.c [2020-11-28 03:17:54,971 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:17:54,975 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:17:54,987 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:17:55,024 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:17:55,024 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:17:55,024 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:17:55,025 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:17:55,025 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:17:55,025 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:17:55,025 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:17:55,025 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:17:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:17:55,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:17:55,046 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:55,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:17:55,047 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:55,054 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-28 03:17:55,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:55,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077540816] [2020-11-28 03:17:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:55,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:55,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:55,288 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:55,288 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:17:55,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:17:55,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:55 BoogieIcfgContainer [2020-11-28 03:17:55,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:17:55,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:55,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:55,321 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:55,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:54" (3/4) ... [2020-11-28 03:17:55,323 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:17:55,393 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b87f5b83-758f-471b-9278-a6328c83831f/bin/uautomizer/witness.graphml [2020-11-28 03:17:55,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:55,397 INFO L168 Benchmark]: Toolchain (without parser) took 1080.75 ms. Allocated memory is still 83.9 MB. Free memory was 53.1 MB in the beginning and 34.9 MB in the end (delta: 18.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:55,399 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 45.3 MB in the beginning and 45.2 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:55,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.25 ms. Allocated memory is still 83.9 MB. Free memory was 52.9 MB in the beginning and 62.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:55,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.98 ms. Allocated memory is still 83.9 MB. Free memory was 62.6 MB in the beginning and 61.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:55,404 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 83.9 MB. Free memory was 61.5 MB in the beginning and 60.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:55,405 INFO L168 Benchmark]: RCFGBuilder took 310.29 ms. Allocated memory is still 83.9 MB. Free memory was 60.4 MB in the beginning and 49.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:55,406 INFO L168 Benchmark]: TraceAbstraction took 366.74 ms. Allocated memory is still 83.9 MB. Free memory was 48.9 MB in the beginning and 36.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:55,408 INFO L168 Benchmark]: Witness Printer took 74.51 ms. Allocated memory is still 83.9 MB. Free memory was 36.7 MB in the beginning and 34.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:55,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 45.3 MB in the beginning and 45.2 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.25 ms. Allocated memory is still 83.9 MB. Free memory was 52.9 MB in the beginning and 62.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.98 ms. Allocated memory is still 83.9 MB. Free memory was 62.6 MB in the beginning and 61.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.86 ms. Allocated memory is still 83.9 MB. Free memory was 61.5 MB in the beginning and 60.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 310.29 ms. Allocated memory is still 83.9 MB. Free memory was 60.4 MB in the beginning and 49.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 366.74 ms. Allocated memory is still 83.9 MB. Free memory was 48.9 MB in the beginning and 36.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 74.51 ms. Allocated memory is still 83.9 MB. Free memory was 36.7 MB in the beginning and 34.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] int a, b; VAL [a={5:0}, b={3:0}] [L7] COND TRUE a != b VAL [a={5:0}, b={3:0}] [L3] __assert_fail("0", "test12.c", 3, "reach_error") VAL [a={5:0}, b={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! Received shutdown request...