./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c384f7a6c7ac4b51f51fdae23487764a8637ce9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 17:31:55,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:31:55,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:31:55,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:31:55,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:31:55,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:31:55,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:31:55,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:31:55,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:31:55,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:31:55,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:31:55,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:31:55,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:31:55,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:31:55,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:31:55,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:31:55,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:31:55,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:31:55,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:31:55,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:31:55,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:31:55,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:31:55,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:31:55,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:31:55,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:31:55,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:31:55,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:31:55,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:31:55,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:31:55,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:31:55,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:31:55,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:31:55,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:31:55,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:31:55,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:31:55,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:31:55,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:31:55,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:31:55,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:31:55,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:31:55,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:31:55,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:31:55,433 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:31:55,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:31:55,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:31:55,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:31:55,434 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:31:55,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:31:55,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:31:55,436 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:31:55,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:31:55,436 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:31:55,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:31:55,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:31:55,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:31:55,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:31:55,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:31:55,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:31:55,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:31:55,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:31:55,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:31:55,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:31:55,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:31:55,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:31:55,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:31:55,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/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(__VERIFIER_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 -> 6c384f7a6c7ac4b51f51fdae23487764a8637ce9 [2019-12-07 17:31:55,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:31:55,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:31:55,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:31:55,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:31:55,555 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:31:55,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/../../sv-benchmarks/c/loops/bubble_sort-2.i [2019-12-07 17:31:55,593 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/data/833d2e89e/4eed43f93fb34ff1960adbe2e129bd57/FLAG3b8bcbb3e [2019-12-07 17:31:56,040 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:31:56,040 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/sv-benchmarks/c/loops/bubble_sort-2.i [2019-12-07 17:31:56,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/data/833d2e89e/4eed43f93fb34ff1960adbe2e129bd57/FLAG3b8bcbb3e [2019-12-07 17:31:56,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/data/833d2e89e/4eed43f93fb34ff1960adbe2e129bd57 [2019-12-07 17:31:56,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:31:56,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:31:56,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:31:56,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:31:56,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:31:56,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6948f983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56, skipping insertion in model container [2019-12-07 17:31:56,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:31:56,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:31:56,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:31:56,314 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:31:56,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:31:56,374 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:31:56,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56 WrapperNode [2019-12-07 17:31:56,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:31:56,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:31:56,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:31:56,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:31:56,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:31:56,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:31:56,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:31:56,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:31:56,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... [2019-12-07 17:31:56,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:31:56,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:31:56,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:31:56,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:31:56,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/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 [2019-12-07 17:31:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 17:31:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 17:31:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:31:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:31:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:31:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 17:31:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:31:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 17:31:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:31:56,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:31:56,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:31:57,173 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:31:57,173 INFO L287 CfgBuilder]: Removed 143 assume(true) statements. [2019-12-07 17:31:57,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:31:57 BoogieIcfgContainer [2019-12-07 17:31:57,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:31:57,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:31:57,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:31:57,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:31:57,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:31:56" (1/3) ... [2019-12-07 17:31:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1567f7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:31:57, skipping insertion in model container [2019-12-07 17:31:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:31:56" (2/3) ... [2019-12-07 17:31:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1567f7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:31:57, skipping insertion in model container [2019-12-07 17:31:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:31:57" (3/3) ... [2019-12-07 17:31:57,178 INFO L109 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2019-12-07 17:31:57,185 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:31:57,190 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 34 error locations. [2019-12-07 17:31:57,197 INFO L249 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2019-12-07 17:31:57,214 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:31:57,214 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:31:57,214 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:31:57,214 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:31:57,215 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:31:57,215 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:31:57,215 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:31:57,215 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:31:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states. [2019-12-07 17:31:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:31:57,236 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:31:57,236 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:57,237 INFO L410 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]=== [2019-12-07 17:31:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:57,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1809897809, now seen corresponding path program 1 times [2019-12-07 17:31:57,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:57,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994464637] [2019-12-07 17:31:57,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:31:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:31:57,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994464637] [2019-12-07 17:31:57,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:31:57,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:31:57,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973987196] [2019-12-07 17:31:57,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:31:57,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:31:57,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:31:57,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:31:57,350 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 2 states. [2019-12-07 17:31:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:31:57,380 INFO L93 Difference]: Finished difference Result 424 states and 670 transitions. [2019-12-07 17:31:57,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:31:57,381 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 17:31:57,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:31:57,389 INFO L225 Difference]: With dead ends: 424 [2019-12-07 17:31:57,389 INFO L226 Difference]: Without dead ends: 204 [2019-12-07 17:31:57,392 INFO L630 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 [2019-12-07 17:31:57,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-12-07 17:31:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2019-12-07 17:31:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-12-07 17:31:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 209 transitions. [2019-12-07 17:31:57,426 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 209 transitions. Word has length 7 [2019-12-07 17:31:57,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:31:57,426 INFO L462 AbstractCegarLoop]: Abstraction has 204 states and 209 transitions. [2019-12-07 17:31:57,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:31:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 209 transitions. [2019-12-07 17:31:57,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 17:31:57,426 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:31:57,427 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:57,427 INFO L410 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]=== [2019-12-07 17:31:57,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:57,427 INFO L82 PathProgramCache]: Analyzing trace with hash -2031969607, now seen corresponding path program 1 times [2019-12-07 17:31:57,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:57,427 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499077287] [2019-12-07 17:31:57,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:31:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:31:57,532 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499077287] [2019-12-07 17:31:57,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:31:57,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:31:57,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322376846] [2019-12-07 17:31:57,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:31:57,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:31:57,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:31:57,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:31:57,534 INFO L87 Difference]: Start difference. First operand 204 states and 209 transitions. Second operand 4 states. [2019-12-07 17:31:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:31:57,651 INFO L93 Difference]: Finished difference Result 204 states and 209 transitions. [2019-12-07 17:31:57,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:31:57,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 17:31:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:31:57,653 INFO L225 Difference]: With dead ends: 204 [2019-12-07 17:31:57,653 INFO L226 Difference]: Without dead ends: 200 [2019-12-07 17:31:57,654 INFO L630 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 [2019-12-07 17:31:57,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2019-12-07 17:31:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2019-12-07 17:31:57,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2019-12-07 17:31:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 205 transitions. [2019-12-07 17:31:57,670 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 205 transitions. Word has length 14 [2019-12-07 17:31:57,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:31:57,670 INFO L462 AbstractCegarLoop]: Abstraction has 200 states and 205 transitions. [2019-12-07 17:31:57,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:31:57,670 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 205 transitions. [2019-12-07 17:31:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 17:31:57,671 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:31:57,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:31:57,671 INFO L410 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]=== [2019-12-07 17:31:57,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:31:57,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1132347312, now seen corresponding path program 1 times [2019-12-07 17:31:57,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:31:57,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711040073] [2019-12-07 17:31:57,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:31:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:31:57,910 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:31:57,910 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:31:57,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:31:57 BoogieIcfgContainer [2019-12-07 17:31:57,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:31:57,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:31:57,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:31:57,961 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:31:57,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:31:57" (3/4) ... [2019-12-07 17:31:57,963 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:31:58,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c930c329-9fd3-4a49-8dcc-4001ca6f34b2/bin/uautomizer/witness.graphml [2019-12-07 17:31:58,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:31:58,035 INFO L168 Benchmark]: Toolchain (without parser) took 1974.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 943.5 MB in the beginning and 872.6 MB in the end (delta: 71.0 MB). Peak memory consumption was 172.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,036 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:31:58,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,037 INFO L168 Benchmark]: Boogie Preprocessor took 72.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,037 INFO L168 Benchmark]: RCFGBuilder took 669.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 979.9 MB in the end (delta: 94.6 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,037 INFO L168 Benchmark]: TraceAbstraction took 785.65 ms. Allocated memory is still 1.1 GB. Free memory was 979.9 MB in the beginning and 877.9 MB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,038 INFO L168 Benchmark]: Witness Printer took 72.86 ms. Allocated memory is still 1.1 GB. Free memory was 877.9 MB in the beginning and 872.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:31:58,039 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 669.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 979.9 MB in the end (delta: 94.6 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 785.65 ms. Allocated memory is still 1.1 GB. Free memory was 979.9 MB in the beginning and 877.9 MB in the end (delta: 102.0 MB). Peak memory consumption was 102.0 MB. Max. memory is 11.5 GB. * Witness Printer took 72.86 ms. Allocated memory is still 1.1 GB. Free memory was 877.9 MB in the beginning and 872.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 35]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L41] struct list_head gl_list = {& gl_list, & gl_list}; VAL [gl_list={4294967295:0}] [L824] struct list_head const *__cil_tmp1 ; [L825] struct list_head const *__cil_tmp2 ; [L665] int tmp ; [L666] int tmp___0 ; VAL [gl_list={4294967295:0}] [L669] COND TRUE 1 VAL [gl_list={4294967295:0}] [L672] tmp = __VERIFIER_nondet_int() [L611] struct node *node ; [L612] void *tmp ; [L613] unsigned int __cil_tmp4 ; [L614] unsigned int __cil_tmp5 ; [L615] unsigned int __cil_tmp6 ; [L616] struct list_head *__cil_tmp7 ; [L617] unsigned int __cil_tmp8 ; [L618] unsigned int __cil_tmp9 ; [L619] unsigned int __cil_tmp10 ; [L620] unsigned int __cil_tmp11 ; [L621] unsigned int __cil_tmp12 ; [L622] unsigned int __cil_tmp13 ; [L623] unsigned int __cil_tmp14 ; [L624] unsigned int __cil_tmp15 ; [L627] __cil_tmp4 = (unsigned int )20UL [L628] tmp = malloc(__cil_tmp4) [L629] node = (struct node *)tmp VAL [gl_list={4294967295:0}] [L631] COND FALSE !(! node) VAL [gl_list={4294967295:0}] [L638] *((int *)node) = value [L639] __cil_tmp5 = (unsigned int )node [L640] __cil_tmp6 = __cil_tmp5 + 4 [L641] __cil_tmp7 = (struct list_head *)__cil_tmp6 [L584] struct list_head *__cil_tmp3 ; [L587] EXPR \read(*head) [L587] __cil_tmp3 = *((struct list_head **)head) [L556] unsigned int __cil_tmp4 ; [L557] unsigned int __cil_tmp5 ; [L558] unsigned int __cil_tmp6 ; [L559] unsigned int __cil_tmp7 ; [L561] __cil_tmp4 = (unsigned int )next [L562] __cil_tmp5 = __cil_tmp4 + 4 [L563] *((struct list_head **)__cil_tmp5) = new [L564] *((struct list_head **)new) = next [L565] __cil_tmp6 = (unsigned int )new [L566] __cil_tmp7 = __cil_tmp6 + 4 [L567] *((struct list_head **)__cil_tmp7) = prev [L568] *((struct list_head **)prev) = new VAL [gl_list={4294967295:0}] [L645] COND TRUE 1 VAL [gl_list={4294967295:0}] [L647] __cil_tmp8 = (unsigned int )node [L648] __cil_tmp9 = __cil_tmp8 + 12 [L649] __cil_tmp10 = (unsigned int )node [L650] __cil_tmp11 = __cil_tmp10 + 12 [L651] *((struct list_head **)__cil_tmp9) = (struct list_head *)__cil_tmp11 [L652] __cil_tmp12 = (unsigned int )node [L653] __cil_tmp13 = __cil_tmp12 + 12 [L654] __cil_tmp14 = (unsigned int )node [L655] __cil_tmp15 = __cil_tmp14 + 12 [L656] *((struct list_head **)__cil_tmp13) = (struct list_head *)__cil_tmp15 VAL [gl_list={4294967295:0}] [L674] tmp___0 = __VERIFIER_nondet_int() [L676] COND FALSE !(\read(tmp___0)) VAL [gl_list={4294967295:0}] [L829] __cil_tmp1 = (struct list_head const *)(& gl_list) [L44] struct node const *node ; [L45] unsigned int __cil_tmp3 ; [L46] struct list_head *__cil_tmp4 ; [L47] unsigned int __cil_tmp5 ; [L48] int __cil_tmp6 ; [L49] unsigned int __cil_tmp7 ; [L50] unsigned int __cil_tmp8 ; [L51] unsigned int __cil_tmp9 ; [L52] struct list_head *__cil_tmp10 ; [L53] unsigned int __cil_tmp11 ; [L54] int __cil_tmp12 ; [L55] unsigned int __cil_tmp13 ; [L56] unsigned int __cil_tmp14 ; [L57] struct list_head *__cil_tmp15 ; [L58] unsigned int __cil_tmp16 ; [L59] struct list_head *__cil_tmp17 ; [L60] unsigned int __cil_tmp18 ; [L61] int __cil_tmp19 ; [L62] unsigned int __cil_tmp20 ; [L63] unsigned int __cil_tmp21 ; [L64] unsigned int __cil_tmp22 ; [L65] struct list_head *__cil_tmp23 ; [L66] unsigned int __cil_tmp24 ; [L67] int __cil_tmp25 ; [L68] struct node *__cil_tmp26 ; [L69] unsigned int __cil_tmp27 ; [L70] unsigned int __cil_tmp28 ; [L71] struct list_head *__cil_tmp29 ; [L72] unsigned long __cil_tmp30 ; [L73] char *__cil_tmp31 ; [L74] char *__cil_tmp32 ; [L75] struct node *__cil_tmp33 ; [L76] unsigned int __cil_tmp34 ; [L77] unsigned int __cil_tmp35 ; [L78] struct list_head const *__cil_tmp36 ; [L79] unsigned int __cil_tmp37 ; [L80] unsigned int __cil_tmp38 ; [L81] unsigned int __cil_tmp39 ; [L82] struct list_head *__cil_tmp40 ; [L83] unsigned int __cil_tmp41 ; [L84] int __cil_tmp42 ; [L85] unsigned int __cil_tmp43 ; [L86] unsigned int __cil_tmp44 ; [L87] struct list_head const *__cil_tmp45 ; [L88] unsigned int __cil_tmp46 ; [L89] unsigned int __cil_tmp47 ; [L90] unsigned int __cil_tmp48 ; [L91] unsigned int __cil_tmp49 ; [L92] struct list_head *__cil_tmp50 ; [L93] unsigned int __cil_tmp51 ; [L94] int __cil_tmp52 ; [L95] unsigned int __cil_tmp53 ; [L96] unsigned int __cil_tmp54 ; [L97] struct list_head const *__cil_tmp55 ; [L98] unsigned int __cil_tmp56 ; [L99] unsigned int __cil_tmp57 ; [L100] unsigned int __cil_tmp58 ; [L101] struct list_head *__cil_tmp59 ; [L102] unsigned int __cil_tmp60 ; [L103] int __cil_tmp61 ; [L104] unsigned int __cil_tmp62 ; [L105] unsigned int __cil_tmp63 ; [L106] struct list_head const *__cil_tmp64 ; [L107] unsigned int __cil_tmp65 ; [L108] unsigned int __cil_tmp66 ; [L109] unsigned int __cil_tmp67 ; [L110] unsigned int __cil_tmp68 ; [L111] struct list_head *__cil_tmp69 ; [L112] unsigned int __cil_tmp70 ; [L113] int __cil_tmp71 ; [L114] struct node const *__cil_tmp72 ; [L115] unsigned int __cil_tmp73 ; [L116] unsigned int __cil_tmp74 ; [L117] int __cil_tmp75 ; [L118] unsigned int __cil_tmp76 ; [L119] unsigned int __cil_tmp77 ; [L120] struct list_head const *__cil_tmp78 ; [L121] struct node const *__cil_tmp79 ; [L122] unsigned int __cil_tmp80 ; [L123] unsigned int __cil_tmp81 ; [L124] int __cil_tmp82 ; [L125] int const *__cil_tmp83 ; [L126] struct node const *__cil_tmp84 ; [L127] unsigned int __cil_tmp85 ; [L128] unsigned int __cil_tmp86 ; [L129] int __cil_tmp87 ; [L130] unsigned int __cil_tmp88 ; [L131] unsigned int __cil_tmp89 ; [L132] struct list_head *__cil_tmp90 ; [L133] unsigned int __cil_tmp91 ; [L134] unsigned int __cil_tmp92 ; [L135] struct list_head *__cil_tmp93 ; [L136] unsigned int __cil_tmp94 ; [L137] unsigned int __cil_tmp95 ; [L138] int __cil_tmp96 ; [L139] unsigned int __cil_tmp97 ; [L140] unsigned int __cil_tmp98 ; [L141] unsigned int __cil_tmp99 ; [L142] struct list_head *__cil_tmp100 ; [L143] struct list_head *__cil_tmp101 ; [L144] unsigned int __cil_tmp102 ; [L145] unsigned int __cil_tmp103 ; [L146] int __cil_tmp104 ; [L147] struct list_head *__cil_tmp105 ; [L148] unsigned int __cil_tmp106 ; [L149] unsigned int __cil_tmp107 ; [L150] unsigned int __cil_tmp108 ; [L151] struct list_head const *__cil_tmp109 ; [L152] unsigned int __cil_tmp110 ; [L153] struct list_head *__cil_tmp111 ; [L154] unsigned int __cil_tmp112 ; [L155] struct node *__cil_tmp113 ; [L156] unsigned int __cil_tmp114 ; [L157] unsigned int __cil_tmp115 ; [L158] struct list_head *__cil_tmp116 ; [L159] unsigned long __cil_tmp117 ; [L160] char *__cil_tmp118 ; [L161] char *__cil_tmp119 ; [L162] struct node *__cil_tmp120 ; [L163] unsigned int __cil_tmp121 ; [L164] int __cil_tmp122 ; VAL [gl_list={4294967295:0}] [L168] COND TRUE 1 VAL [gl_list={4294967295:0}] [L170] COND FALSE !(! head) VAL [gl_list={4294967295:0}] [L181] COND TRUE 1 VAL [gl_list={4294967295:0}] [L184] __cil_tmp3 = (unsigned int )head [L185] EXPR \read(*head) [L185] __cil_tmp4 = *((struct list_head * const *)head) [L186] __cil_tmp5 = (unsigned int )__cil_tmp4 [L187] __cil_tmp6 = __cil_tmp5 != __cil_tmp3 VAL [gl_list={4294967295:0}] [L188] COND TRUE ! __cil_tmp6 [L35] __VERIFIER_error() VAL [gl_list={4294967295:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 213 locations, 34 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 411 SDtfs, 216 SDslu, 150 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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=213occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 673 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...