./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/array-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/array-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 229f3e8ce4e3b13e76b58dc42b5f9a4638bd79f9f3aa927499d1d902ea457152 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:46:38,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:46:38,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:46:39,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:46:39,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:46:39,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:46:39,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:46:39,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:46:39,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:46:39,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:46:39,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:46:39,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:46:39,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:46:39,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:46:39,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:46:39,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:46:39,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:46:39,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:46:39,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:46:39,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:46:39,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:46:39,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:46:39,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:46:39,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:46:39,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:46:39,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:46:39,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:46:39,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:46:39,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:46:39,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:46:39,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:46:39,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:46:39,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:46:39,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:46:39,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:46:39,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:46:39,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:46:39,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:46:39,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:46:39,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:46:39,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:46:39,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:46:39,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:46:39,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:46:39,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:46:39,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:46:39,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:46:39,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:46:39,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:46:39,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:46:39,099 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:46:39,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:46:39,100 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:46:39,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:46:39,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:46:39,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:46:39,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:46:39,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:46:39,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:46:39,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:46:39,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:46:39,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:46:39,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:46:39,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:46:39,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:46:39,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:46:39,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:46:39,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:46:39,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:46:39,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:46:39,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:46:39,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:46:39,106 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:46:39,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:46:39,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:46:39,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:46:39,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 229f3e8ce4e3b13e76b58dc42b5f9a4638bd79f9f3aa927499d1d902ea457152 [2021-11-20 06:46:39,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:46:39,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:46:39,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:46:39,379 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:46:39,380 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:46:39,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/loops/array-1.c [2021-11-20 06:46:39,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/data/f1c2d153e/83778e5c286c4f5e8d0471f06e04abeb/FLAGfa886322b [2021-11-20 06:46:40,014 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:46:40,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/sv-benchmarks/c/loops/array-1.c [2021-11-20 06:46:40,028 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/data/f1c2d153e/83778e5c286c4f5e8d0471f06e04abeb/FLAGfa886322b [2021-11-20 06:46:40,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/data/f1c2d153e/83778e5c286c4f5e8d0471f06e04abeb [2021-11-20 06:46:40,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:46:40,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:46:40,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:46:40,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:46:40,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:46:40,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40653483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40, skipping insertion in model container [2021-11-20 06:46:40,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:46:40,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:46:40,552 WARN L230 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_8fcb7a38-995d-4eb0-840a-37019a784259/sv-benchmarks/c/loops/array-1.c[319,332] [2021-11-20 06:46:40,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:46:40,608 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:46:40,621 WARN L230 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_8fcb7a38-995d-4eb0-840a-37019a784259/sv-benchmarks/c/loops/array-1.c[319,332] [2021-11-20 06:46:40,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:46:40,640 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:46:40,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40 WrapperNode [2021-11-20 06:46:40,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:46:40,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:46:40,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:46:40,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:46:40,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,674 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2021-11-20 06:46:40,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:46:40,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:46:40,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:46:40,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:46:40,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:46:40,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:46:40,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:46:40,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:46:40,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (1/1) ... [2021-11-20 06:46:40,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:46:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:46:40,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:46:40,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:46:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:46:40,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:46:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:46:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:46:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:46:40,847 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:46:40,849 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:46:40,985 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:46:40,991 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:46:40,991 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:46:40,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:46:40 BoogieIcfgContainer [2021-11-20 06:46:40,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:46:40,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:46:40,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:46:41,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:46:41,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:46:40" (1/3) ... [2021-11-20 06:46:41,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e41dc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:46:41, skipping insertion in model container [2021-11-20 06:46:41,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:46:40" (2/3) ... [2021-11-20 06:46:41,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e41dc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:46:41, skipping insertion in model container [2021-11-20 06:46:41,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:46:40" (3/3) ... [2021-11-20 06:46:41,011 INFO L111 eAbstractionObserver]: Analyzing ICFG array-1.c [2021-11-20 06:46:41,016 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:46:41,017 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:46:41,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:46:41,075 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:46:41,075 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:46:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-11-20 06:46:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 06:46:41,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:46:41,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 06:46:41,098 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:46:41,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:46:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-11-20 06:46:41,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:46:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501068393] [2021-11-20 06:46:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:46:41,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:46:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:41,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:46:41,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:46:41,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501068393] [2021-11-20 06:46:41,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501068393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:46:41,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:46:41,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:46:41,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056008502] [2021-11-20 06:46:41,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:46:41,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:46:41,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:46:41,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:46:41,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:46:41,372 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-20 06:46:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:46:41,385 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-11-20 06:46:41,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:46:41,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-20 06:46:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:46:41,394 INFO L225 Difference]: With dead ends: 21 [2021-11-20 06:46:41,394 INFO L226 Difference]: Without dead ends: 9 [2021-11-20 06:46:41,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:46:41,402 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:46:41,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:46:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-20 06:46:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-20 06:46:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-11-20 06:46:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-20 06:46:41,442 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-11-20 06:46:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:46:41,442 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-20 06:46:41,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-20 06:46:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-20 06:46:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 06:46:41,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:46:41,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 06:46:41,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:46:41,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:46:41,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:46:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2021-11-20 06:46:41,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:46:41,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139671343] [2021-11-20 06:46:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:46:41,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:46:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:46:41,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:46:41,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139671343] [2021-11-20 06:46:41,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139671343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:46:41,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:46:41,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:46:41,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992438573] [2021-11-20 06:46:41,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:46:41,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:46:41,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:46:41,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:46:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:46:41,624 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-20 06:46:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:46:41,646 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-11-20 06:46:41,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:46:41,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-20 06:46:41,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:46:41,648 INFO L225 Difference]: With dead ends: 16 [2021-11-20 06:46:41,648 INFO L226 Difference]: Without dead ends: 12 [2021-11-20 06:46:41,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:46:41,650 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:46:41,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:46:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-20 06:46:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-11-20 06:46:41,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-11-20 06:46:41,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-20 06:46:41,656 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-11-20 06:46:41,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:46:41,657 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-20 06:46:41,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-11-20 06:46:41,658 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-20 06:46:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 06:46:41,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:46:41,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:46:41,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:46:41,659 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:46:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:46:41,660 INFO L85 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2021-11-20 06:46:41,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:46:41,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25301485] [2021-11-20 06:46:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:46:41,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:46:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:46:42,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:46:42,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25301485] [2021-11-20 06:46:42,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25301485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:46:42,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:46:42,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:46:42,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600763185] [2021-11-20 06:46:42,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:46:42,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:46:42,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:46:42,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:46:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:46:42,753 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 06:46:42,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:46:42,821 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-20 06:46:42,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:46:42,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2021-11-20 06:46:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:46:42,823 INFO L225 Difference]: With dead ends: 16 [2021-11-20 06:46:42,823 INFO L226 Difference]: Without dead ends: 12 [2021-11-20 06:46:42,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:46:42,832 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:46:42,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:46:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-20 06:46:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-11-20 06:46:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 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) [2021-11-20 06:46:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-20 06:46:42,846 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2021-11-20 06:46:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:46:42,846 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-20 06:46:42,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 06:46:42,847 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-20 06:46:42,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 06:46:42,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:46:42,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:46:42,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:46:42,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:46:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:46:42,850 INFO L85 PathProgramCache]: Analyzing trace with hash -275361512, now seen corresponding path program 1 times [2021-11-20 06:46:42,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:46:42,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754981019] [2021-11-20 06:46:42,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:46:42,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:46:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:46:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:46:43,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:46:43,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754981019] [2021-11-20 06:46:43,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754981019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:46:43,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:46:43,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:46:43,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601827963] [2021-11-20 06:46:43,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:46:43,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:46:43,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:46:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:46:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:46:43,608 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 06:46:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:46:43,665 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-11-20 06:46:43,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:46:43,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 9 [2021-11-20 06:46:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:46:43,667 INFO L225 Difference]: With dead ends: 11 [2021-11-20 06:46:43,667 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:46:43,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:46:43,680 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:46:43,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:46:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:46:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:46:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-20 06:46:43,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:46:43,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-20 06:46:43,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:46:43,685 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:46:43,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-20 06:46:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:46:43,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:46:43,688 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:46:43,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:46:43,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:46:43,723 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:46:43,724 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 26) no Hoare annotation was computed. [2021-11-20 06:46:43,724 INFO L854 garLoopResultBuilder]: At program point L21-3(lines 21 26) the Hoare annotation is: (and (or (<= |ULTIMATE.start_main_~menor~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|) |ULTIMATE.start_main_~#array~0#1.offset|)) (= |ULTIMATE.start_main_~j~0#1| 0)) (= |ULTIMATE.start_main_~#array~0#1.offset| 0) (= |ULTIMATE.start_main_~SIZE~0#1| 1)) [2021-11-20 06:46:43,724 INFO L858 garLoopResultBuilder]: For program point L21-4(lines 21 26) no Hoare annotation was computed. [2021-11-20 06:46:43,725 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-11-20 06:46:43,725 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:46:43,725 INFO L861 garLoopResultBuilder]: At program point L30(lines 13 31) the Hoare annotation is: true [2021-11-20 06:46:43,725 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:46:43,726 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:46:43,726 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2021-11-20 06:46:43,726 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-11-20 06:46:43,727 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-11-20 06:46:43,727 INFO L861 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-11-20 06:46:43,741 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-20 06:46:43,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:46:43,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:46:43 BoogieIcfgContainer [2021-11-20 06:46:43,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:46:43,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:46:43,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:46:43,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:46:43,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:46:40" (3/4) ... [2021-11-20 06:46:43,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:46:43,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:46:43,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:46:43,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:46:43,786 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:46:43,824 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:46:43,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:46:43,825 INFO L158 Benchmark]: Toolchain (without parser) took 3438.24ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 58.3MB in the beginning and 62.6MB in the end (delta: -4.3MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2021-11-20 06:46:43,825 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:46:43,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.69ms. Allocated memory is still 90.2MB. Free memory was 58.2MB in the beginning and 66.9MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:46:43,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 90.2MB. Free memory was 66.9MB in the beginning and 65.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:46:43,826 INFO L158 Benchmark]: Boogie Preprocessor took 23.11ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 64.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:46:43,827 INFO L158 Benchmark]: RCFGBuilder took 294.58ms. Allocated memory is still 90.2MB. Free memory was 64.2MB in the beginning and 54.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:46:43,828 INFO L158 Benchmark]: TraceAbstraction took 2772.60ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 54.4MB in the beginning and 65.7MB in the end (delta: -11.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2021-11-20 06:46:43,831 INFO L158 Benchmark]: Witness Printer took 55.06ms. Allocated memory is still 132.1MB. Free memory was 65.7MB in the beginning and 62.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:46:43,834 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 90.2MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.69ms. Allocated memory is still 90.2MB. Free memory was 58.2MB in the beginning and 66.9MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 90.2MB. Free memory was 66.9MB in the beginning and 65.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.11ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 64.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.58ms. Allocated memory is still 90.2MB. Free memory was 64.2MB in the beginning and 54.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2772.60ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 54.4MB in the beginning and 65.7MB in the end (delta: -11.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 55.06ms. Allocated memory is still 132.1MB. Free memory was 65.7MB in the beginning and 62.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 29 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((menor <= unknown-#memory_int-unknown[array][array] || j == 0) && array == 0) && SIZE == 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 06:46:43,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fcb7a38-995d-4eb0-840a-37019a784259/bin/uautomizer-DQz5hQGWxF/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: TRUE