./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03.c --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_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF --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 eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:34:28,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:34:28,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:34:29,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:34:29,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:34:29,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:34:29,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:34:29,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:34:29,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:34:29,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:34:29,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:34:29,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:34:29,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:34:29,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:34:29,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:34:29,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:34:29,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:34:29,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:34:29,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:34:29,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:34:29,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:34:29,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:34:29,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:34:29,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:34:29,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:34:29,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:34:29,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:34:29,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:34:29,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:34:29,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:34:29,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:34:29,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:34:29,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:34:29,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:34:29,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:34:29,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:34:29,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:34:29,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:34:29,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:34:29,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:34:29,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:34:29,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:34:29,097 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:34:29,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:34:29,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:34:29,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:34:29,102 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:34:29,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:34:29,102 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:34:29,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:34:29,106 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:34:29,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:34:29,107 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:34:29,108 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:34:29,108 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:34:29,109 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:34:29,109 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:34:29,109 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:34:29,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:34:29,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:34:29,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:34:29,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:34:29,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:34:29,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:34:29,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:34:29,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:34:29,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:34:29,113 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:34:29,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:34:29,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:34:29,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:34:29,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:34:29,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:34:29,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:34:29,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:34:29,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:34:29,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:34:29,118 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:34:29,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:34:29,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:34:29,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:34:29,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:34:29,119 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2021-11-13 01:34:29,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:34:29,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:34:29,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:34:29,470 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:34:29,471 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:34:29,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/recursive/EvenOdd03.c [2021-11-13 01:34:29,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/c0ea37c60/9d651e2f40a74919a8a37e3e723571ab/FLAG4d8b7ead9 [2021-11-13 01:34:30,071 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:34:30,072 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/sv-benchmarks/c/recursive/EvenOdd03.c [2021-11-13 01:34:30,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/c0ea37c60/9d651e2f40a74919a8a37e3e723571ab/FLAG4d8b7ead9 [2021-11-13 01:34:30,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/c0ea37c60/9d651e2f40a74919a8a37e3e723571ab [2021-11-13 01:34:30,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:34:30,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:34:30,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:34:30,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:34:30,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:34:30,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7addea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30, skipping insertion in model container [2021-11-13 01:34:30,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:34:30,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:34:30,713 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2021-11-13 01:34:30,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:34:30,727 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:34:30,749 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2021-11-13 01:34:30,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:34:30,762 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:34:30,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30 WrapperNode [2021-11-13 01:34:30,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:34:30,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:34:30,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:34:30,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:34:30,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:34:30,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:34:30,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:34:30,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:34:30,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:34:30,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:34:30,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:34:30,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:34:30,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (1/1) ... [2021-11-13 01:34:30,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:34:30,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:34:30,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:34:30,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:34:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2021-11-13 01:34:30,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2021-11-13 01:34:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:34:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:34:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2021-11-13 01:34:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2021-11-13 01:34:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:34:30,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:34:31,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:34:31,179 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:34:31,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:31 BoogieIcfgContainer [2021-11-13 01:34:31,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:34:31,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:34:31,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:34:31,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:34:31,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:34:30" (1/3) ... [2021-11-13 01:34:31,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b871aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:34:31, skipping insertion in model container [2021-11-13 01:34:31,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:30" (2/3) ... [2021-11-13 01:34:31,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b871aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:34:31, skipping insertion in model container [2021-11-13 01:34:31,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:31" (3/3) ... [2021-11-13 01:34:31,191 INFO L111 eAbstractionObserver]: Analyzing ICFG EvenOdd03.c [2021-11-13 01:34:31,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:34:31,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:34:31,249 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:34:31,257 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=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 [2021-11-13 01:34:31,257 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:34:31,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:34:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:34:31,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:31,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:31,281 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 465177429, now seen corresponding path program 1 times [2021-11-13 01:34:31,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:34:31,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438458947] [2021-11-13 01:34:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:31,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:34:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:34:31,504 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:34:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:34:31,582 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:34:31,585 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:34:31,587 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:34:31,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:34:31,596 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 01:34:31,600 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:34:31,619 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 01:34:31,624 INFO L158 Benchmark]: Toolchain (without parser) took 1172.57ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 41.7MB in the end (delta: 10.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-13 01:34:31,626 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 68.3MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:34:31,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.13ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 68.5MB in the end (delta: -16.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:34:31,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.92ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 67.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:34:31,631 INFO L158 Benchmark]: Boogie Preprocessor took 20.28ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 66.0MB in the end (delta: 990.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:34:31,633 INFO L158 Benchmark]: RCFGBuilder took 358.44ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 55.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:34:31,638 INFO L158 Benchmark]: TraceAbstraction took 437.93ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 41.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:34:31,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 68.3MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.13ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 68.5MB in the end (delta: -16.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.92ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 67.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.28ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 66.0MB in the end (delta: 990.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.44ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 55.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 437.93ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 41.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. 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 01:34:31,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF --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 eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:34:34,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:34:34,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:34:34,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:34:34,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:34:34,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:34:34,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:34:34,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:34:34,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:34:34,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:34:34,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:34:34,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:34:34,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:34:34,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:34:34,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:34:34,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:34:34,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:34:34,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:34:34,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:34:34,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:34:34,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:34:34,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:34:34,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:34:34,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:34:34,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:34:34,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:34:34,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:34:34,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:34:34,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:34:34,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:34:34,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:34:34,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:34:34,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:34:34,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:34:34,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:34:34,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:34:34,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:34:34,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:34:34,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:34:34,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:34:34,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:34:34,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:34:34,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:34:34,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:34:34,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:34:34,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:34:34,388 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:34:34,389 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:34:34,389 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:34:34,389 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:34:34,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:34:34,389 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:34:34,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:34:34,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:34:34,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:34:34,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:34:34,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:34:34,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:34:34,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:34:34,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:34:34,397 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:34:34,397 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:34:34,397 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:34:34,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:34:34,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:34:34,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:34:34,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:34:34,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:34:34,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:34:34,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:34:34,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:34:34,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:34:34,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:34:34,400 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:34:34,400 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:34:34,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:34:34,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:34:34,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:34:34,401 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2021-11-13 01:34:34,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:34:34,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:34:34,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:34:34,826 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:34:34,835 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:34:34,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/recursive/EvenOdd03.c [2021-11-13 01:34:34,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/7edf49845/87b8585142924a8fb3476fa8be5584fb/FLAG5ea5425a1 [2021-11-13 01:34:35,477 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:34:35,478 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/sv-benchmarks/c/recursive/EvenOdd03.c [2021-11-13 01:34:35,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/7edf49845/87b8585142924a8fb3476fa8be5584fb/FLAG5ea5425a1 [2021-11-13 01:34:35,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/data/7edf49845/87b8585142924a8fb3476fa8be5584fb [2021-11-13 01:34:35,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:34:35,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:34:35,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:34:35,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:34:35,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:34:35,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:34:35" (1/1) ... [2021-11-13 01:34:35,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238c9809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:35, skipping insertion in model container [2021-11-13 01:34:35,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:34:35" (1/1) ... [2021-11-13 01:34:35,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:34:35,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:34:36,041 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2021-11-13 01:34:36,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:34:36,057 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:34:36,073 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_c47f9466-303c-4f86-b2c4-59c25cd07e34/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2021-11-13 01:34:36,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:34:36,087 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:34:36,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36 WrapperNode [2021-11-13 01:34:36,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:34:36,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:34:36,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:34:36,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:34:36,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:34:36,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:34:36,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:34:36,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:34:36,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:34:36,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:34:36,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:34:36,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:34:36,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (1/1) ... [2021-11-13 01:34:36,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:34:36,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:34:36,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:34:36,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:34:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2021-11-13 01:34:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2021-11-13 01:34:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:34:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:34:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2021-11-13 01:34:36,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2021-11-13 01:34:36,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:34:36,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:34:36,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:34:36,545 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:34:36,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:36 BoogieIcfgContainer [2021-11-13 01:34:36,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:34:36,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:34:36,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:34:36,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:34:36,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:34:35" (1/3) ... [2021-11-13 01:34:36,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1eba07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:34:36, skipping insertion in model container [2021-11-13 01:34:36,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:34:36" (2/3) ... [2021-11-13 01:34:36,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1eba07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:34:36, skipping insertion in model container [2021-11-13 01:34:36,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:36" (3/3) ... [2021-11-13 01:34:36,572 INFO L111 eAbstractionObserver]: Analyzing ICFG EvenOdd03.c [2021-11-13 01:34:36,577 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:34:36,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:34:36,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:34:36,648 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=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 [2021-11-13 01:34:36,648 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:34:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 01:34:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:34:36,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:36,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:36,691 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1463045116, now seen corresponding path program 1 times [2021-11-13 01:34:36,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:36,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257521204] [2021-11-13 01:34:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:36,733 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:36,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:36,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:36,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:34:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:34:36,846 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:34:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:34:36,944 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-13 01:34:36,946 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:34:36,948 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:34:36,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:37,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:37,166 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 01:34:37,171 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:34:37,184 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 01:34:37,191 INFO L158 Benchmark]: Toolchain (without parser) took 1331.96ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 47.3MB in the end (delta: 874.7kB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-11-13 01:34:37,192 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 69.2MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:34:37,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.96ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 37.8MB in the end (delta: 10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:34:37,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.33ms. Allocated memory is still 69.2MB. Free memory was 37.8MB in the beginning and 52.2MB in the end (delta: -14.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:34:37,197 INFO L158 Benchmark]: Boogie Preprocessor took 45.33ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 51.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:34:37,199 INFO L158 Benchmark]: RCFGBuilder took 366.85ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 40.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:34:37,204 INFO L158 Benchmark]: TraceAbstraction took 639.16ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 47.3MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:34:37,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 69.2MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.96ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 37.8MB in the end (delta: 10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.33ms. Allocated memory is still 69.2MB. Free memory was 37.8MB in the beginning and 52.2MB in the end (delta: -14.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.33ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 51.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.85ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 40.8MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 639.16ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 47.3MB in the end (delta: -7.2MB). 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 01:34:37,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47f9466-303c-4f86-b2c4-59c25cd07e34/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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