./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 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y --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 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:43:27,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:43:27,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:43:27,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:43:27,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:43:27,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:43:27,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:43:27,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:43:27,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:43:27,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:43:27,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:43:27,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:43:27,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:43:27,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:43:27,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:43:27,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:43:27,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:43:27,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:43:27,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:43:27,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:43:27,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:43:27,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:43:27,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:43:27,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:43:27,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:43:27,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:43:27,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:43:27,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:43:27,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:43:27,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:43:27,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:43:27,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:43:27,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:43:27,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:43:27,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:43:27,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:43:27,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:43:27,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:43:27,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:43:27,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:43:27,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:43:27,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:43:27,646 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:43:27,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:43:27,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:43:27,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:43:27,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:43:27,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:43:27,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:43:27,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:43:27,649 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:43:27,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:43:27,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:43:27,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:43:27,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:43:27,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:43:27,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:43:27,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:43:27,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:43:27,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:43:27,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:43:27,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:43:27,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:43:27,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:43:27,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:43:27,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:43:27,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:27,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:43:27,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:43:27,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:43:27,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:43:27,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:43:27,665 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:43:27,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:43:27,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:43:27,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:43:27,666 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_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 [2021-11-13 17:43:27,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:43:27,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:43:27,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:43:27,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:43:27,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:43:27,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-13 17:43:28,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/968afd43a/49087700e0d94a759e3e8db8749f215f/FLAG6d3cc182f [2021-11-13 17:43:28,543 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:43:28,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-13 17:43:28,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/968afd43a/49087700e0d94a759e3e8db8749f215f/FLAG6d3cc182f [2021-11-13 17:43:29,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/968afd43a/49087700e0d94a759e3e8db8749f215f [2021-11-13 17:43:29,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:43:29,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:43:29,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:29,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:43:29,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:43:29,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8a6a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29, skipping insertion in model container [2021-11-13 17:43:29,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:43:29,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:43:29,251 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-13 17:43:29,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:29,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:43:29,392 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-13 17:43:29,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:29,498 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:43:29,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29 WrapperNode [2021-11-13 17:43:29,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:29,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:29,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:43:29,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:43:29,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:29,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:43:29,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:43:29,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:43:29,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:43:29,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:43:29,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:43:29,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:43:29,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (1/1) ... [2021-11-13 17:43:29,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:29,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:43:29,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:43:29,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:43:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:43:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:43:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:43:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:43:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:43:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:43:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-13 17:43:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-13 17:43:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:43:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-13 17:43:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-13 17:43:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:43:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-13 17:43:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-13 17:43:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 17:43:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 17:43:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:43:29,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:43:29,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:43:30,103 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-11-13 17:43:30,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:43:30,551 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-11-13 17:43:30,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:30 BoogieIcfgContainer [2021-11-13 17:43:30,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:43:30,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:43:30,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:43:30,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:43:30,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:43:29" (1/3) ... [2021-11-13 17:43:30,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a09a441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:30, skipping insertion in model container [2021-11-13 17:43:30,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:29" (2/3) ... [2021-11-13 17:43:30,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a09a441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:30, skipping insertion in model container [2021-11-13 17:43:30,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:30" (3/3) ... [2021-11-13 17:43:30,562 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-11-13 17:43:30,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:43:30,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:43:30,618 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:43:30,625 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:43:30,625 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:43:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 97 states have (on average 1.731958762886598) internal successors, (168), 115 states have internal predecessors, (168), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-13 17:43:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 17:43:30,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:30,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:30,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:30,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash -810899314, now seen corresponding path program 1 times [2021-11-13 17:43:30,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:30,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904450639] [2021-11-13 17:43:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:30,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:30,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:30,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904450639] [2021-11-13 17:43:30,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904450639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:30,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:30,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 17:43:30,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715509661] [2021-11-13 17:43:30,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:30,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:43:30,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:30,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:43:30,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:43:30,912 INFO L87 Difference]: Start difference. First operand has 125 states, 97 states have (on average 1.731958762886598) internal successors, (168), 115 states have internal predecessors, (168), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:43:30,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:30,961 INFO L93 Difference]: Finished difference Result 248 states and 394 transitions. [2021-11-13 17:43:30,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:43:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 17:43:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:30,972 INFO L225 Difference]: With dead ends: 248 [2021-11-13 17:43:30,972 INFO L226 Difference]: Without dead ends: 116 [2021-11-13 17:43:30,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:43:30,981 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:30,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:43:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-13 17:43:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-11-13 17:43:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 89 states have (on average 1.247191011235955) internal successors, (111), 106 states have internal predecessors, (111), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 17:43:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 139 transitions. [2021-11-13 17:43:31,028 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 139 transitions. Word has length 10 [2021-11-13 17:43:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:31,028 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 139 transitions. [2021-11-13 17:43:31,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:43:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 139 transitions. [2021-11-13 17:43:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 17:43:31,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:31,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:31,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:43:31,031 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:31,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1347869656, now seen corresponding path program 1 times [2021-11-13 17:43:31,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:31,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897018060] [2021-11-13 17:43:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:31,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 17:43:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:31,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:43:31,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897018060] [2021-11-13 17:43:31,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897018060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:31,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:31,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:43:31,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454541600] [2021-11-13 17:43:31,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:31,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:43:31,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:43:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:43:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:43:31,337 INFO L87 Difference]: Start difference. First operand 116 states and 139 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:43:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:31,992 INFO L93 Difference]: Finished difference Result 193 states and 232 transitions. [2021-11-13 17:43:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:43:31,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2021-11-13 17:43:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:31,996 INFO L225 Difference]: With dead ends: 193 [2021-11-13 17:43:31,996 INFO L226 Difference]: Without dead ends: 188 [2021-11-13 17:43:31,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:43:31,998 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 426 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 448.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.90ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 541.64ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:31,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 277 Invalid, 380 Unknown, 0 Unchecked, 9.90ms Time], IncrementalHoareTripleChecker [87 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 541.64ms Time] [2021-11-13 17:43:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-13 17:43:32,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2021-11-13 17:43:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 161 states have internal predecessors, (183), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 17:43:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2021-11-13 17:43:32,063 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 22 [2021-11-13 17:43:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:32,065 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2021-11-13 17:43:32,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:43:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2021-11-13 17:43:32,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 17:43:32,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:32,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:32,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:43:32,067 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:32,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash 379335336, now seen corresponding path program 1 times [2021-11-13 17:43:32,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:43:32,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299913108] [2021-11-13 17:43:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:32,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:43:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:43:32,377 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:43:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:43:32,639 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:43:32,640 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 17:43:32,641 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:43:32,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:43:32,649 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 17:43:32,652 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:43:32,691 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 17:43:32,703 INFO L158 Benchmark]: Toolchain (without parser) took 3673.11ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 87.1MB in the beginning and 70.1MB in the end (delta: 17.1MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2021-11-13 17:43:32,704 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory was 94.1MB in the beginning and 94.1MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:43:32,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.66ms. Allocated memory is still 123.7MB. Free memory was 87.1MB in the beginning and 90.5MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 17:43:32,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.49ms. Allocated memory is still 123.7MB. Free memory was 90.5MB in the beginning and 88.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:43:32,706 INFO L158 Benchmark]: Boogie Preprocessor took 76.13ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 84.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 17:43:32,707 INFO L158 Benchmark]: RCFGBuilder took 889.26ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 54.2MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-13 17:43:32,710 INFO L158 Benchmark]: TraceAbstraction took 2141.51ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 53.5MB in the beginning and 70.1MB in the end (delta: -16.6MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-11-13 17:43:32,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory was 94.1MB in the beginning and 94.1MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.66ms. Allocated memory is still 123.7MB. Free memory was 87.1MB in the beginning and 90.5MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.49ms. Allocated memory is still 123.7MB. Free memory was 90.5MB in the beginning and 88.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.13ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 84.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 889.26ms. Allocated memory is still 123.7MB. Free memory was 84.9MB in the beginning and 54.2MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2141.51ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 53.5MB in the beginning and 70.1MB in the end (delta: -16.6MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 17:43:32,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y --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 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:43:35,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:43:35,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:43:35,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:43:35,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:43:35,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:43:35,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:43:35,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:43:35,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:43:35,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:43:35,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:43:35,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:43:35,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:43:35,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:43:35,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:43:35,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:43:35,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:43:35,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:43:35,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:43:35,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:43:35,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:43:35,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:43:35,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:43:35,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:43:35,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:43:35,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:43:35,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:43:35,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:43:35,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:43:35,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:43:35,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:43:35,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:43:35,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:43:35,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:43:35,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:43:35,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:43:35,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:43:35,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:43:35,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:43:35,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:43:35,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:43:35,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 17:43:35,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:43:35,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:43:35,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:43:35,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:43:35,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:43:35,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:43:35,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:43:35,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:43:35,300 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:43:35,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:43:35,301 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:43:35,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:43:35,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:43:35,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:43:35,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:43:35,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:43:35,303 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 17:43:35,303 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 17:43:35,303 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:43:35,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:43:35,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:43:35,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:43:35,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:43:35,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:43:35,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:43:35,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:35,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:43:35,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:43:35,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:43:35,306 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 17:43:35,306 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 17:43:35,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:43:35,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:43:35,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:43:35,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:43:35,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 17:43:35,308 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 [2021-11-13 17:43:35,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:43:35,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:43:35,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:43:35,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:43:35,723 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:43:35,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-13 17:43:35,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/7e1000462/de3c0459ada549b5a1959af01fd8485e/FLAGa3125645c [2021-11-13 17:43:36,328 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:43:36,328 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-13 17:43:36,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/7e1000462/de3c0459ada549b5a1959af01fd8485e/FLAGa3125645c [2021-11-13 17:43:36,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/data/7e1000462/de3c0459ada549b5a1959af01fd8485e [2021-11-13 17:43:36,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:43:36,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:43:36,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:36,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:43:36,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:43:36,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:36" (1/1) ... [2021-11-13 17:43:36,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7ea48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:36, skipping insertion in model container [2021-11-13 17:43:36,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:43:36" (1/1) ... [2021-11-13 17:43:36,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:43:36,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:43:36,862 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-13 17:43:37,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:37,015 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:43:37,028 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-13 17:43:37,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:43:37,148 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:43:37,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37 WrapperNode [2021-11-13 17:43:37,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:43:37,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:37,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:43:37,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:43:37,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:43:37,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:43:37,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:43:37,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:43:37,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:43:37,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:43:37,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:43:37,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:43:37,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (1/1) ... [2021-11-13 17:43:37,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:43:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:43:37,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:43:37,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 17:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 17:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-13 17:43:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-13 17:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-13 17:43:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-13 17:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-13 17:43:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-13 17:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 17:43:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 17:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:43:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 17:43:37,642 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-11-13 17:43:38,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:43:38,333 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-11-13 17:43:38,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:38 BoogieIcfgContainer [2021-11-13 17:43:38,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:43:38,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:43:38,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:43:38,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:43:38,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:43:36" (1/3) ... [2021-11-13 17:43:38,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb6daf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:38, skipping insertion in model container [2021-11-13 17:43:38,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:43:37" (2/3) ... [2021-11-13 17:43:38,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb6daf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:43:38, skipping insertion in model container [2021-11-13 17:43:38,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:43:38" (3/3) ... [2021-11-13 17:43:38,343 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-11-13 17:43:38,348 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:43:38,349 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:43:38,397 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:43:38,404 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:43:38,404 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:43:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 97 states have (on average 1.731958762886598) internal successors, (168), 115 states have internal predecessors, (168), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-13 17:43:38,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 17:43:38,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:38,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:38,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:38,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:38,434 INFO L85 PathProgramCache]: Analyzing trace with hash -810899314, now seen corresponding path program 1 times [2021-11-13 17:43:38,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:38,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258211645] [2021-11-13 17:43:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:38,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:38,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:38,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:38,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 17:43:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:38,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 17:43:38,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:38,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:38,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:38,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258211645] [2021-11-13 17:43:38,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258211645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:38,738 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:38,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 17:43:38,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118455246] [2021-11-13 17:43:38,741 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:38,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 17:43:38,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:38,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 17:43:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:43:38,785 INFO L87 Difference]: Start difference. First operand has 125 states, 97 states have (on average 1.731958762886598) internal successors, (168), 115 states have internal predecessors, (168), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:43:38,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:38,867 INFO L93 Difference]: Finished difference Result 248 states and 394 transitions. [2021-11-13 17:43:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:43:38,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 17:43:38,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:38,883 INFO L225 Difference]: With dead ends: 248 [2021-11-13 17:43:38,883 INFO L226 Difference]: Without dead ends: 116 [2021-11-13 17:43:38,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 17:43:38,892 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:38,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 2.52ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 17:43:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-13 17:43:38,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-11-13 17:43:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 89 states have (on average 1.247191011235955) internal successors, (111), 106 states have internal predecessors, (111), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 17:43:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 139 transitions. [2021-11-13 17:43:38,953 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 139 transitions. Word has length 10 [2021-11-13 17:43:38,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:38,954 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 139 transitions. [2021-11-13 17:43:38,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:43:38,954 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 139 transitions. [2021-11-13 17:43:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 17:43:38,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:38,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:38,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:39,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:39,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:39,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:39,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1347869656, now seen corresponding path program 1 times [2021-11-13 17:43:39,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:39,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359314462] [2021-11-13 17:43:39,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:39,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:39,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:39,173 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:39,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 17:43:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:43:39,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:43:39,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:43:39,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:39,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 17:43:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:43:39,519 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 17:43:39,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359314462] [2021-11-13 17:43:39,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359314462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 17:43:39,520 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:43:39,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 6 [2021-11-13 17:43:39,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880613864] [2021-11-13 17:43:39,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 17:43:39,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:43:39,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 17:43:39,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:43:39,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:43:39,524 INFO L87 Difference]: Start difference. First operand 116 states and 139 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:43:39,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:43:39,743 INFO L93 Difference]: Finished difference Result 193 states and 232 transitions. [2021-11-13 17:43:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:43:39,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-13 17:43:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:43:39,748 INFO L225 Difference]: With dead ends: 193 [2021-11-13 17:43:39,749 INFO L226 Difference]: Without dead ends: 188 [2021-11-13 17:43:39,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:43:39,751 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 291 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.58ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.57ms IncrementalHoareTripleChecker+Time [2021-11-13 17:43:39,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 477 Invalid, 83 Unknown, 0 Unchecked, 6.58ms Time], IncrementalHoareTripleChecker [28 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 146.57ms Time] [2021-11-13 17:43:39,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-13 17:43:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 172. [2021-11-13 17:43:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 161 states have internal predecessors, (183), 23 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-13 17:43:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 211 transitions. [2021-11-13 17:43:39,811 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 211 transitions. Word has length 22 [2021-11-13 17:43:39,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:43:39,813 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 211 transitions. [2021-11-13 17:43:39,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 17:43:39,813 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 211 transitions. [2021-11-13 17:43:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 17:43:39,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:43:39,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:43:39,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:40,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:40,015 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:43:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:43:40,016 INFO L85 PathProgramCache]: Analyzing trace with hash 379335336, now seen corresponding path program 1 times [2021-11-13 17:43:40,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 17:43:40,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729327684] [2021-11-13 17:43:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:43:40,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 17:43:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 17:43:40,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 17:43:40,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 17:43:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:43:40,255 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:43:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:43:40,497 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-13 17:43:40,498 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 17:43:40,499 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:43:40,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:43:40,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 17:43:40,724 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 17:43:40,727 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 17:43:40,777 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 17:43:40,779 INFO L158 Benchmark]: Toolchain (without parser) took 4160.25ms. Allocated memory was 73.4MB in the beginning and 111.1MB in the end (delta: 37.7MB). Free memory was 56.3MB in the beginning and 70.1MB in the end (delta: -13.8MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-11-13 17:43:40,780 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:43:40,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.29ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 47.9MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:43:40,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.85ms. Allocated memory is still 73.4MB. Free memory was 47.9MB in the beginning and 45.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 17:43:40,782 INFO L158 Benchmark]: Boogie Preprocessor took 74.70ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 41.8MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:43:40,782 INFO L158 Benchmark]: RCFGBuilder took 1047.90ms. Allocated memory was 73.4MB in the beginning and 111.1MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 69.0MB in the end (delta: -27.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-11-13 17:43:40,790 INFO L158 Benchmark]: TraceAbstraction took 2441.23ms. Allocated memory is still 111.1MB. Free memory was 69.0MB in the beginning and 70.1MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:43:40,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 526.29ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 47.9MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.85ms. Allocated memory is still 73.4MB. Free memory was 47.9MB in the beginning and 45.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.70ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 41.8MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1047.90ms. Allocated memory was 73.4MB in the beginning and 111.1MB in the end (delta: 37.7MB). Free memory was 41.8MB in the beginning and 69.0MB in the end (delta: -27.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2441.23ms. Allocated memory is still 111.1MB. Free memory was 69.0MB in the beginning and 70.1MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 17:43:40,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1663abd-9bdc-4388-8f83-41589978930e/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null