./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/bubble_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/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 3904eabd3ac5671d8bfd7199410990878a421a86 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:11:43,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:11:43,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:11:43,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:11:43,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:11:43,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:11:43,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:11:43,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:11:43,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:11:43,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:11:43,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:11:43,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:11:43,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:11:43,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:11:43,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:11:43,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:11:43,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:11:43,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:11:43,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:11:43,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:11:43,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:11:43,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:11:43,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:11:43,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:11:43,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:11:43,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:11:43,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:11:43,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:11:43,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:11:43,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:11:43,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:11:43,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:11:43,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:11:43,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:11:43,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:11:43,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:11:43,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:11:43,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:11:43,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:11:43,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:11:43,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:11:43,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:11:43,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:11:43,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:11:43,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:11:43,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:11:43,631 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:11:43,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:11:43,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:11:43,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:11:43,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:11:43,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:11:43,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:11:43,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:11:43,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:11:43,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:11:43,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:11:43,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:11:43,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:11:43,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:11:43,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:11:43,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:11:43,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:11:43,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:11:43,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:11:43,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:11:43,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:11:43,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:11:43,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:11:43,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:11:43,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:11:43,641 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_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3904eabd3ac5671d8bfd7199410990878a421a86 [2020-12-01 15:11:43,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:11:44,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:11:44,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:11:44,031 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:11:44,032 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:11:44,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/../../sv-benchmarks/c/loops/bubble_sort-2.i [2020-12-01 15:11:44,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/data/90ba78af2/d1812b5d7e9848758097c9e51b474b2d/FLAGc4401ba9a [2020-12-01 15:11:44,899 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:11:44,899 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/sv-benchmarks/c/loops/bubble_sort-2.i [2020-12-01 15:11:44,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/data/90ba78af2/d1812b5d7e9848758097c9e51b474b2d/FLAGc4401ba9a [2020-12-01 15:11:45,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/data/90ba78af2/d1812b5d7e9848758097c9e51b474b2d [2020-12-01 15:11:45,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:11:45,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:11:45,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:11:45,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:11:45,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:11:45,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:45,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1941d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45, skipping insertion in model container [2020-12-01 15:11:45,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:45,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:11:45,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:11:45,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:11:45,635 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:11:45,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:11:45,844 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:11:45,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45 WrapperNode [2020-12-01 15:11:45,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:11:45,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:11:45,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:11:45,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:11:45,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:45,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:45,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:11:45,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:11:45,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:11:45,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:11:46,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... [2020-12-01 15:11:46,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:11:46,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:11:46,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:11:46,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:11:46,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/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 [2020-12-01 15:11:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-01 15:11:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 15:11:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:11:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:11:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:11:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 15:11:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:11:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 15:11:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:11:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:11:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:11:48,156 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:11:48,157 INFO L298 CfgBuilder]: Removed 211 assume(true) statements. [2020-12-01 15:11:48,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:11:48 BoogieIcfgContainer [2020-12-01 15:11:48,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:11:48,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:11:48,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:11:48,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:11:48,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:11:45" (1/3) ... [2020-12-01 15:11:48,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7184996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:11:48, skipping insertion in model container [2020-12-01 15:11:48,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:11:45" (2/3) ... [2020-12-01 15:11:48,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7184996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:11:48, skipping insertion in model container [2020-12-01 15:11:48,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:11:48" (3/3) ... [2020-12-01 15:11:48,177 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2020-12-01 15:11:48,196 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:11:48,202 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 34 error locations. [2020-12-01 15:11:48,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2020-12-01 15:11:48,262 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:11:48,262 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:11:48,262 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:11:48,263 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:11:48,263 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:11:48,263 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:11:48,263 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:11:48,263 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:11:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-12-01 15:11:48,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:11:48,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:48,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:11:48,324 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:11:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:48,332 INFO L82 PathProgramCache]: Analyzing trace with hash -149958222, now seen corresponding path program 1 times [2020-12-01 15:11:48,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:48,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092804982] [2020-12-01 15:11:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:48,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092804982] [2020-12-01 15:11:48,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:11:48,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:11:48,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096150958] [2020-12-01 15:11:48,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:11:48,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:48,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:11:48,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:11:48,532 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 2 states. [2020-12-01 15:11:48,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:48,601 INFO L93 Difference]: Finished difference Result 594 states and 908 transitions. [2020-12-01 15:11:48,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:11:48,603 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:11:48,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:48,636 INFO L225 Difference]: With dead ends: 594 [2020-12-01 15:11:48,646 INFO L226 Difference]: Without dead ends: 272 [2020-12-01 15:11:48,653 INFO L677 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 [2020-12-01 15:11:48,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-12-01 15:11:48,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2020-12-01 15:11:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-12-01 15:11:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 277 transitions. [2020-12-01 15:11:48,778 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 277 transitions. Word has length 9 [2020-12-01 15:11:48,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:48,778 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 277 transitions. [2020-12-01 15:11:48,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:11:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 277 transitions. [2020-12-01 15:11:48,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:11:48,779 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:48,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:11:48,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:11:48,780 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:11:48,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:48,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1487329562, now seen corresponding path program 1 times [2020-12-01 15:11:48,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:48,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026954444] [2020-12-01 15:11:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:11:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:11:49,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026954444] [2020-12-01 15:11:49,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:11:49,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:11:49,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758134617] [2020-12-01 15:11:49,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:11:49,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:11:49,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:11:49,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:11:49,143 INFO L87 Difference]: Start difference. First operand 272 states and 277 transitions. Second operand 4 states. [2020-12-01 15:11:49,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:11:49,391 INFO L93 Difference]: Finished difference Result 272 states and 277 transitions. [2020-12-01 15:11:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:11:49,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-01 15:11:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:11:49,401 INFO L225 Difference]: With dead ends: 272 [2020-12-01 15:11:49,402 INFO L226 Difference]: Without dead ends: 264 [2020-12-01 15:11:49,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:11:49,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-12-01 15:11:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-12-01 15:11:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-12-01 15:11:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 269 transitions. [2020-12-01 15:11:49,438 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 269 transitions. Word has length 16 [2020-12-01 15:11:49,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:11:49,438 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 269 transitions. [2020-12-01 15:11:49,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:11:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 269 transitions. [2020-12-01 15:11:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 15:11:49,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:11:49,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:11:49,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:11:49,443 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:11:49,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:11:49,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1482691769, now seen corresponding path program 1 times [2020-12-01 15:11:49,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:11:49,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499436603] [2020-12-01 15:11:49,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:11:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:11:49,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:11:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:11:49,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:11:50,034 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:11:50,034 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:11:50,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:11:50,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:11:50 BoogieIcfgContainer [2020-12-01 15:11:50,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:11:50,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:11:50,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:11:50,177 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:11:50,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:11:48" (3/4) ... [2020-12-01 15:11:50,181 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:11:50,349 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_78da03e6-4128-4ea7-a0b0-df11c9d1dd48/bin/uautomizer/witness.graphml [2020-12-01 15:11:50,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:11:50,352 INFO L168 Benchmark]: Toolchain (without parser) took 5215.26 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 57.3 MB in the beginning and 64.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,353 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 73.4 MB. Free memory was 46.3 MB in the beginning and 46.3 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:11:50,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.91 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 58.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.17 ms. Allocated memory is still 88.1 MB. Free memory was 58.6 MB in the beginning and 51.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,355 INFO L168 Benchmark]: Boogie Preprocessor took 157.63 ms. Allocated memory is still 88.1 MB. Free memory was 51.7 MB in the beginning and 63.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,356 INFO L168 Benchmark]: RCFGBuilder took 2012.51 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 63.6 MB in the beginning and 63.8 MB in the end (delta: -247.7 kB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,357 INFO L168 Benchmark]: TraceAbstraction took 2008.64 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 71.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,357 INFO L168 Benchmark]: Witness Printer took 173.97 ms. Allocated memory is still 130.0 MB. Free memory was 71.1 MB in the beginning and 64.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:11:50,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 73.4 MB. Free memory was 46.3 MB in the beginning and 46.3 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 723.91 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 58.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 128.17 ms. Allocated memory is still 88.1 MB. Free memory was 58.6 MB in the beginning and 51.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 157.63 ms. Allocated memory is still 88.1 MB. Free memory was 51.7 MB in the beginning and 63.6 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2012.51 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 63.6 MB in the beginning and 63.8 MB in the end (delta: -247.7 kB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2008.64 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 63.2 MB in the beginning and 71.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 173.97 ms. Allocated memory is still 130.0 MB. Free memory was 71.1 MB in the beginning and 64.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L52] struct list_head gl_list = {& gl_list, & gl_list}; VAL [gl_list={4294967292:0}] [L835] struct list_head const *__cil_tmp1 ; [L836] struct list_head const *__cil_tmp2 ; [L676] int tmp ; [L677] int tmp___0 ; VAL [gl_list={4294967292:0}] [L680] COND TRUE 1 VAL [gl_list={4294967292:0}] [L683] tmp = __VERIFIER_nondet_int() [L622] struct node *node ; [L623] void *tmp ; [L624] unsigned int __cil_tmp4 ; [L625] unsigned int __cil_tmp5 ; [L626] unsigned int __cil_tmp6 ; [L627] struct list_head *__cil_tmp7 ; [L628] unsigned int __cil_tmp8 ; [L629] unsigned int __cil_tmp9 ; [L630] unsigned int __cil_tmp10 ; [L631] unsigned int __cil_tmp11 ; [L632] unsigned int __cil_tmp12 ; [L633] unsigned int __cil_tmp13 ; [L634] unsigned int __cil_tmp14 ; [L635] unsigned int __cil_tmp15 ; [L638] __cil_tmp4 = (unsigned int )20UL [L639] tmp = malloc(__cil_tmp4) [L640] node = (struct node *)tmp VAL [gl_list={4294967292:0}] [L642] COND FALSE !(! node) VAL [gl_list={4294967292:0}] [L649] *((int *)node) = value [L650] __cil_tmp5 = (unsigned int )node [L651] __cil_tmp6 = __cil_tmp5 + 4 [L652] __cil_tmp7 = (struct list_head *)__cil_tmp6 [L595] struct list_head *__cil_tmp3 ; [L598] EXPR \read(*head) [L598] __cil_tmp3 = *((struct list_head **)head) [L567] unsigned int __cil_tmp4 ; [L568] unsigned int __cil_tmp5 ; [L569] unsigned int __cil_tmp6 ; [L570] unsigned int __cil_tmp7 ; [L572] __cil_tmp4 = (unsigned int )next [L573] __cil_tmp5 = __cil_tmp4 + 4 [L574] *((struct list_head **)__cil_tmp5) = new [L575] *((struct list_head **)new) = next [L576] __cil_tmp6 = (unsigned int )new [L577] __cil_tmp7 = __cil_tmp6 + 4 [L578] *((struct list_head **)__cil_tmp7) = prev [L579] *((struct list_head **)prev) = new VAL [gl_list={4294967292:0}] [L656] COND TRUE 1 VAL [gl_list={4294967292:0}] [L658] __cil_tmp8 = (unsigned int )node [L659] __cil_tmp9 = __cil_tmp8 + 12 [L660] __cil_tmp10 = (unsigned int )node [L661] __cil_tmp11 = __cil_tmp10 + 12 [L662] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L663] __cil_tmp12 = (unsigned int )node [L664] __cil_tmp13 = __cil_tmp12 + 12 [L665] __cil_tmp14 = (unsigned int )node [L666] __cil_tmp15 = __cil_tmp14 + 12 [L667] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 VAL [gl_list={4294967292:0}] [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) VAL [gl_list={4294967292:0}] [L840] __cil_tmp1 = (struct list_head const *)(& gl_list) [L55] struct node const *node ; [L56] unsigned int __cil_tmp3 ; [L57] struct list_head *__cil_tmp4 ; [L58] unsigned int __cil_tmp5 ; [L59] int __cil_tmp6 ; [L60] unsigned int __cil_tmp7 ; [L61] unsigned int __cil_tmp8 ; [L62] unsigned int __cil_tmp9 ; [L63] struct list_head *__cil_tmp10 ; [L64] unsigned int __cil_tmp11 ; [L65] int __cil_tmp12 ; [L66] unsigned int __cil_tmp13 ; [L67] unsigned int __cil_tmp14 ; [L68] struct list_head *__cil_tmp15 ; [L69] unsigned int __cil_tmp16 ; [L70] struct list_head *__cil_tmp17 ; [L71] unsigned int __cil_tmp18 ; [L72] int __cil_tmp19 ; [L73] unsigned int __cil_tmp20 ; [L74] unsigned int __cil_tmp21 ; [L75] unsigned int __cil_tmp22 ; [L76] struct list_head *__cil_tmp23 ; [L77] unsigned int __cil_tmp24 ; [L78] int __cil_tmp25 ; [L79] struct node *__cil_tmp26 ; [L80] unsigned int __cil_tmp27 ; [L81] unsigned int __cil_tmp28 ; [L82] struct list_head *__cil_tmp29 ; [L83] unsigned long __cil_tmp30 ; [L84] char *__cil_tmp31 ; [L85] char *__cil_tmp32 ; [L86] struct node *__cil_tmp33 ; [L87] unsigned int __cil_tmp34 ; [L88] unsigned int __cil_tmp35 ; [L89] struct list_head const *__cil_tmp36 ; [L90] unsigned int __cil_tmp37 ; [L91] unsigned int __cil_tmp38 ; [L92] unsigned int __cil_tmp39 ; [L93] struct list_head *__cil_tmp40 ; [L94] unsigned int __cil_tmp41 ; [L95] int __cil_tmp42 ; [L96] unsigned int __cil_tmp43 ; [L97] unsigned int __cil_tmp44 ; [L98] struct list_head const *__cil_tmp45 ; [L99] unsigned int __cil_tmp46 ; [L100] unsigned int __cil_tmp47 ; [L101] unsigned int __cil_tmp48 ; [L102] unsigned int __cil_tmp49 ; [L103] struct list_head *__cil_tmp50 ; [L104] unsigned int __cil_tmp51 ; [L105] int __cil_tmp52 ; [L106] unsigned int __cil_tmp53 ; [L107] unsigned int __cil_tmp54 ; [L108] struct list_head const *__cil_tmp55 ; [L109] unsigned int __cil_tmp56 ; [L110] unsigned int __cil_tmp57 ; [L111] unsigned int __cil_tmp58 ; [L112] struct list_head *__cil_tmp59 ; [L113] unsigned int __cil_tmp60 ; [L114] int __cil_tmp61 ; [L115] unsigned int __cil_tmp62 ; [L116] unsigned int __cil_tmp63 ; [L117] struct list_head const *__cil_tmp64 ; [L118] unsigned int __cil_tmp65 ; [L119] unsigned int __cil_tmp66 ; [L120] unsigned int __cil_tmp67 ; [L121] unsigned int __cil_tmp68 ; [L122] struct list_head *__cil_tmp69 ; [L123] unsigned int __cil_tmp70 ; [L124] int __cil_tmp71 ; [L125] struct node const *__cil_tmp72 ; [L126] unsigned int __cil_tmp73 ; [L127] unsigned int __cil_tmp74 ; [L128] int __cil_tmp75 ; [L129] unsigned int __cil_tmp76 ; [L130] unsigned int __cil_tmp77 ; [L131] struct list_head const *__cil_tmp78 ; [L132] struct node const *__cil_tmp79 ; [L133] unsigned int __cil_tmp80 ; [L134] unsigned int __cil_tmp81 ; [L135] int __cil_tmp82 ; [L136] int const *__cil_tmp83 ; [L137] struct node const *__cil_tmp84 ; [L138] unsigned int __cil_tmp85 ; [L139] unsigned int __cil_tmp86 ; [L140] int __cil_tmp87 ; [L141] unsigned int __cil_tmp88 ; [L142] unsigned int __cil_tmp89 ; [L143] struct list_head *__cil_tmp90 ; [L144] unsigned int __cil_tmp91 ; [L145] unsigned int __cil_tmp92 ; [L146] struct list_head *__cil_tmp93 ; [L147] unsigned int __cil_tmp94 ; [L148] unsigned int __cil_tmp95 ; [L149] int __cil_tmp96 ; [L150] unsigned int __cil_tmp97 ; [L151] unsigned int __cil_tmp98 ; [L152] unsigned int __cil_tmp99 ; [L153] struct list_head *__cil_tmp100 ; [L154] struct list_head *__cil_tmp101 ; [L155] unsigned int __cil_tmp102 ; [L156] unsigned int __cil_tmp103 ; [L157] int __cil_tmp104 ; [L158] struct list_head *__cil_tmp105 ; [L159] unsigned int __cil_tmp106 ; [L160] unsigned int __cil_tmp107 ; [L161] unsigned int __cil_tmp108 ; [L162] struct list_head const *__cil_tmp109 ; [L163] unsigned int __cil_tmp110 ; [L164] struct list_head *__cil_tmp111 ; [L165] unsigned int __cil_tmp112 ; [L166] struct node *__cil_tmp113 ; [L167] unsigned int __cil_tmp114 ; [L168] unsigned int __cil_tmp115 ; [L169] struct list_head *__cil_tmp116 ; [L170] unsigned long __cil_tmp117 ; [L171] char *__cil_tmp118 ; [L172] char *__cil_tmp119 ; [L173] struct node *__cil_tmp120 ; [L174] unsigned int __cil_tmp121 ; [L175] int __cil_tmp122 ; VAL [gl_list={4294967292:0}] [L179] COND TRUE 1 VAL [gl_list={4294967292:0}] [L181] COND FALSE !(! head) VAL [gl_list={4294967292:0}] [L192] COND TRUE 1 VAL [gl_list={4294967292:0}] [L195] __cil_tmp3 = (unsigned int )head [L196] EXPR \read(*head) [L196] __cil_tmp4 = *((struct list_head * const *)head) [L197] __cil_tmp5 = (unsigned int )__cil_tmp4 [L198] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 VAL [gl_list={4294967292:0}] [L199] COND TRUE ! __cil_tmp6 [L12] COND FALSE !(0) VAL [gl_list={4294967292:0}] [L12] __assert_fail ("0", "bubble_sort-2.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [gl_list={4294967292:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 315 locations, 34 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 543 SDtfs, 288 SDslu, 206 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 829 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! Received shutdown request...