./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condnf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/condnf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f200ba5f761b85a7e085e45c2d123795022765b .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:24:20,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:24:20,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:24:20,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:24:20,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:24:20,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:24:20,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:24:20,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:24:20,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:24:20,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:24:20,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:24:20,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:24:20,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:24:20,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:24:20,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:24:20,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:24:20,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:24:20,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:24:20,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:24:20,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:24:20,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:24:20,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:24:20,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:24:20,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:24:20,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:24:20,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:24:20,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:24:20,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:24:20,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:24:20,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:24:20,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:24:20,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:24:20,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:24:20,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:24:20,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:24:20,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:24:20,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:24:20,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:24:20,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:24:20,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:24:20,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:24:20,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:24:20,936 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:24:20,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:24:20,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:24:20,938 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:24:20,938 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:24:20,938 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:24:20,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:24:20,939 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:24:20,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:24:20,939 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:24:20,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:24:20,940 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:24:20,940 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:24:20,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:24:20,940 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:24:20,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:24:20,942 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:24:20,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:24:20,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:24:20,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:24:20,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:24:20,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:24:20,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:24:20,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:24:20,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:24:20,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:24:20,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:24:20,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:24:20,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:24:20,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:24:20,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:24:20,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:24:20,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:24:20,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:24:20,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:24:20,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:24:20,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:24:20,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:24:20,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:24:20,947 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f200ba5f761b85a7e085e45c2d123795022765b [2021-10-16 02:24:21,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:24:21,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:24:21,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:24:21,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:24:21,228 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:24:21,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/array-fpi/condnf.c [2021-10-16 02:24:21,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/data/14a374496/1e9752ed99c249b09d090c4783a876ae/FLAG54fbddd39 [2021-10-16 02:24:21,753 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:24:21,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/sv-benchmarks/c/array-fpi/condnf.c [2021-10-16 02:24:21,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/data/14a374496/1e9752ed99c249b09d090c4783a876ae/FLAG54fbddd39 [2021-10-16 02:24:22,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/data/14a374496/1e9752ed99c249b09d090c4783a876ae [2021-10-16 02:24:22,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:24:22,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:24:22,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:24:22,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:24:22,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:24:22,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c20061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22, skipping insertion in model container [2021-10-16 02:24:22,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:24:22,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:24:22,363 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_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/sv-benchmarks/c/array-fpi/condnf.c[589,602] [2021-10-16 02:24:22,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:24:22,397 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:24:22,413 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_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/sv-benchmarks/c/array-fpi/condnf.c[589,602] [2021-10-16 02:24:22,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:24:22,452 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:24:22,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22 WrapperNode [2021-10-16 02:24:22,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:24:22,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:24:22,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:24:22,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:24:22,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:24:22,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:24:22,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:24:22,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:24:22,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:24:22,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:24:22,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:24:22,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:24:22,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (1/1) ... [2021-10-16 02:24:22,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:24:22,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:24:22,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:24:22,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:24:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:24:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:24:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:24:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:24:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:24:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:24:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:24:23,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:24:23,132 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-16 02:24:23,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:23 BoogieIcfgContainer [2021-10-16 02:24:23,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:24:23,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:24:23,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:24:23,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:24:23,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:24:22" (1/3) ... [2021-10-16 02:24:23,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f478f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:24:23, skipping insertion in model container [2021-10-16 02:24:23,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:22" (2/3) ... [2021-10-16 02:24:23,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f478f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:24:23, skipping insertion in model container [2021-10-16 02:24:23,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:23" (3/3) ... [2021-10-16 02:24:23,142 INFO L111 eAbstractionObserver]: Analyzing ICFG condnf.c [2021-10-16 02:24:23,147 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:24:23,148 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:24:23,198 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:24:23,205 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-16 02:24:23,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:24:23,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:24:23,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:23,227 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:24:23,228 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:24:23,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:23,240 INFO L82 PathProgramCache]: Analyzing trace with hash -529185191, now seen corresponding path program 1 times [2021-10-16 02:24:23,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:23,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141015022] [2021-10-16 02:24:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:23,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:24:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:24:23,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:24:23,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141015022] [2021-10-16 02:24:23,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141015022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:24:23,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:24:23,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:24:23,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894408502] [2021-10-16 02:24:23,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:24:23,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:24:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:24:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:24:23,562 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:24:23,612 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-10-16 02:24:23,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:24:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-16 02:24:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:24:23,624 INFO L225 Difference]: With dead ends: 20 [2021-10-16 02:24:23,624 INFO L226 Difference]: Without dead ends: 10 [2021-10-16 02:24:23,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:24:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-16 02:24:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-16 02:24:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-16 02:24:23,661 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2021-10-16 02:24:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:24:23,662 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-16 02:24:23,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-16 02:24:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:24:23,664 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:23,664 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:24:23,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:24:23,665 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:24:23,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:23,669 INFO L82 PathProgramCache]: Analyzing trace with hash 351199448, now seen corresponding path program 1 times [2021-10-16 02:24:23,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:23,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469037167] [2021-10-16 02:24:23,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:23,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:24:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:24:23,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:24:23,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469037167] [2021-10-16 02:24:23,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469037167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:24:23,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:24:23,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:24:23,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601441469] [2021-10-16 02:24:23,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:24:23,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:24:23,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:24:23,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:24:23,807 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:24:23,860 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-10-16 02:24:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:24:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-16 02:24:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:24:23,862 INFO L225 Difference]: With dead ends: 21 [2021-10-16 02:24:23,862 INFO L226 Difference]: Without dead ends: 16 [2021-10-16 02:24:23,863 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:24:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-16 02:24:23,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2021-10-16 02:24:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-16 02:24:23,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-10-16 02:24:23,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:24:23,868 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-16 02:24:23,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-16 02:24:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:24:23,869 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:23,869 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:24:23,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:24:23,870 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:24:23,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:23,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1994057592, now seen corresponding path program 1 times [2021-10-16 02:24:23,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:23,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867044268] [2021-10-16 02:24:23,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:23,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:24:23,935 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:24:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:24:23,995 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:24:23,995 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:24:23,996 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:24:23,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:24:24,004 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:24:24,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:24:24 BoogieIcfgContainer [2021-10-16 02:24:24,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:24:24,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:24:24,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:24:24,033 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:24:24,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:23" (3/4) ... [2021-10-16 02:24:24,035 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:24:24,078 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bb43b3e-6851-4dde-8ad3-d6e9838378b0/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:24:24,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:24:24,080 INFO L168 Benchmark]: Toolchain (without parser) took 1903.36 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 75.1 MB in the beginning and 80.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,081 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:24:24,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.45 ms. Allocated memory is still 104.9 MB. Free memory was 75.1 MB in the beginning and 80.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.76 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,083 INFO L168 Benchmark]: Boogie Preprocessor took 58.14 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 77.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,084 INFO L168 Benchmark]: RCFGBuilder took 557.29 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 63.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,085 INFO L168 Benchmark]: TraceAbstraction took 896.01 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 82.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,085 INFO L168 Benchmark]: Witness Printer took 46.25 ms. Allocated memory is still 125.8 MB. Free memory was 82.8 MB in the beginning and 80.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:24,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.45 ms. Allocated memory is still 104.9 MB. Free memory was 75.1 MB in the beginning and 80.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.76 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 78.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.14 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 77.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 557.29 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 63.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 896.01 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 82.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Witness Printer took 46.25 ms. Allocated memory is still 125.8 MB. Free memory was 82.8 MB in the beginning and 80.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] int *a = malloc(sizeof(int)*N); [L30] i=0 VAL [N=1] [L30] COND TRUE i N [L38] EXPR a[i] [L38] a[i] = a[i] [L35] i++ VAL [N=1] [L35] COND FALSE !(i