./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57db2827f748fdac723600595d50868896f17762 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:20:14,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:20:14,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:20:15,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:20:15,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:20:15,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:20:15,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:20:15,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:20:15,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:20:15,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:20:15,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:20:15,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:20:15,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:20:15,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:20:15,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:20:15,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:20:15,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:20:15,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:20:15,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:20:15,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:20:15,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:20:15,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:20:15,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:20:15,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:20:15,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:20:15,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:20:15,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:20:15,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:20:15,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:20:15,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:20:15,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:20:15,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:20:15,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:20:15,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:20:15,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:20:15,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:20:15,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:20:15,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:20:15,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:20:15,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:20:15,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:20:15,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-11 00:20:15,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:20:15,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:20:15,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:20:15,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:20:15,123 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:20:15,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:20:15,123 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:20:15,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:20:15,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:20:15,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:20:15,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:20:15,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:20:15,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:20:15,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:20:15,125 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:20:15,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:20:15,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:20:15,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:20:15,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:20:15,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:20:15,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:20:15,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:20:15,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:15,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:20:15,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:20:15,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:20:15,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:20:15,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:20:15,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:20:15,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:20:15,135 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_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57db2827f748fdac723600595d50868896f17762 [2021-10-11 00:20:15,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:20:15,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:20:15,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:20:15,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:20:15,492 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:20:15,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2021-10-11 00:20:15,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/data/2b54132de/3edaf4be4b084301a5b41da27d9ae075/FLAG2e78d4786 [2021-10-11 00:20:16,038 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:20:16,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/sv-benchmarks/c/loop-zilu/benchmark25_linear.i [2021-10-11 00:20:16,045 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/data/2b54132de/3edaf4be4b084301a5b41da27d9ae075/FLAG2e78d4786 [2021-10-11 00:20:16,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/data/2b54132de/3edaf4be4b084301a5b41da27d9ae075 [2021-10-11 00:20:16,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:20:16,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:20:16,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:16,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:20:16,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:20:16,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273ccd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16, skipping insertion in model container [2021-10-11 00:20:16,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:20:16,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:20:16,675 WARN L226 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_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/sv-benchmarks/c/loop-zilu/benchmark25_linear.i[868,881] [2021-10-11 00:20:16,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:16,690 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:20:16,701 WARN L226 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_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/sv-benchmarks/c/loop-zilu/benchmark25_linear.i[868,881] [2021-10-11 00:20:16,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:16,715 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:20:16,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16 WrapperNode [2021-10-11 00:20:16,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:16,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:16,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:20:16,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:20:16,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:16,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:20:16,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:20:16,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:20:16,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... [2021-10-11 00:20:16,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:20:16,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:20:16,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:20:16,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:20:16,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:20:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:20:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:20:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:20:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:20:17,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:20:17,034 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:20:17,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:17 BoogieIcfgContainer [2021-10-11 00:20:17,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:20:17,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:20:17,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:20:17,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:20:17,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:16" (1/3) ... [2021-10-11 00:20:17,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2018dfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:17, skipping insertion in model container [2021-10-11 00:20:17,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:16" (2/3) ... [2021-10-11 00:20:17,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2018dfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:17, skipping insertion in model container [2021-10-11 00:20:17,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:17" (3/3) ... [2021-10-11 00:20:17,049 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark25_linear.i [2021-10-11 00:20:17,063 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:20:17,068 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:20:17,082 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:20:17,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:20:17,108 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:20:17,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:20:17,108 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:20:17,108 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:20:17,108 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:20:17,108 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:20:17,109 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:20:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2021-10-11 00:20:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 00:20:17,127 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:17,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 00:20:17,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:20:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:17,133 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-10-11 00:20:17,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:17,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151438179] [2021-10-11 00:20:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:17,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151438179] [2021-10-11 00:20:17,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:17,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:17,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427458946] [2021-10-11 00:20:17,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:17,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:17,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:17,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,308 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2021-10-11 00:20:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:17,351 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-10-11 00:20:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:17,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 00:20:17,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:17,362 INFO L225 Difference]: With dead ends: 24 [2021-10-11 00:20:17,363 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 00:20:17,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 00:20:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-11 00:20:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:20:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-11 00:20:17,400 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-11 00:20:17,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:17,400 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-11 00:20:17,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-11 00:20:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 00:20:17,401 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:17,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 00:20:17,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:20:17,402 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:20:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-10-11 00:20:17,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:17,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404775438] [2021-10-11 00:20:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:17,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404775438] [2021-10-11 00:20:17,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:17,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:17,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825147326] [2021-10-11 00:20:17,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:17,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:17,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:17,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,447 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2021-10-11 00:20:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:17,462 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-11 00:20:17,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:17,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 00:20:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:17,463 INFO L225 Difference]: With dead ends: 10 [2021-10-11 00:20:17,464 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 00:20:17,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 00:20:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 00:20:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 00:20:17,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 00:20:17,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2021-10-11 00:20:17,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:17,469 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 00:20:17,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:17,469 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-11 00:20:17,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:20:17,470 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:20:17,470 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-11 00:20:17,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:20:17,471 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:20:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:17,472 INFO L82 PathProgramCache]: Analyzing trace with hash 183289263, now seen corresponding path program 1 times [2021-10-11 00:20:17,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:17,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462828720] [2021-10-11 00:20:17,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 00:20:17,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462828720] [2021-10-11 00:20:17,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:17,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:17,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706556347] [2021-10-11 00:20:17,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:20:17,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:17,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:17,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,532 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2021-10-11 00:20:17,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:17,548 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-11 00:20:17,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:17,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-10-11 00:20:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:20:17,550 INFO L225 Difference]: With dead ends: 9 [2021-10-11 00:20:17,550 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:20:17,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:17,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:20:17,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:20:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:20:17,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:20:17,552 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 00:20:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:20:17,552 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:20:17,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:20:17,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:20:17,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:20:17,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:20:17,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:20:17,574 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-11 00:20:17,575 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:20:17,575 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-11 00:20:17,575 INFO L262 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-11 00:20:17,575 INFO L262 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-11 00:20:17,575 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-11 00:20:17,575 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:20:17,576 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-11 00:20:17,576 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:20:17,576 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:20:17,577 INFO L265 CegarLoopResult]: At program point L26(lines 19 27) the Hoare annotation is: true [2021-10-11 00:20:17,628 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 24) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-10-11 00:20:17,629 INFO L262 CegarLoopResult]: For program point L22-3(lines 22 24) no Hoare annotation was computed. [2021-10-11 00:20:17,629 INFO L262 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-11 00:20:17,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:17 BoogieIcfgContainer [2021-10-11 00:20:17,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:20:17,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:20:17,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:20:17,663 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:20:17,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:17" (3/4) ... [2021-10-11 00:20:17,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:20:17,678 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 00:20:17,679 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 00:20:17,679 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:20:17,679 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:20:17,725 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e00f0-1d13-4e0b-8ab5-b04cbd577fb3/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:20:17,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:20:17,727 INFO L168 Benchmark]: Toolchain (without parser) took 1267.39 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 61.1 MB in the beginning and 97.7 MB in the end (delta: -36.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:17,728 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 77.7 MB in the end (delta: 57.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:17,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.27 ms. Allocated memory is still 102.8 MB. Free memory was 60.8 MB in the beginning and 77.5 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:17,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 102.8 MB. Free memory was 77.5 MB in the beginning and 76.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:17,730 INFO L168 Benchmark]: Boogie Preprocessor took 19.34 ms. Allocated memory is still 102.8 MB. Free memory was 76.1 MB in the beginning and 75.2 MB in the end (delta: 956.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:17,731 INFO L168 Benchmark]: RCFGBuilder took 270.19 ms. Allocated memory is still 102.8 MB. Free memory was 75.2 MB in the beginning and 64.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:17,731 INFO L168 Benchmark]: TraceAbstraction took 616.55 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 99.0 MB in the end (delta: -35.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:17,732 INFO L168 Benchmark]: Witness Printer took 70.61 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 97.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:17,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 77.7 MB in the end (delta: 57.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.27 ms. Allocated memory is still 102.8 MB. Free memory was 60.8 MB in the beginning and 77.5 MB in the end (delta: -16.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 102.8 MB. Free memory was 77.5 MB in the beginning and 76.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.34 ms. Allocated memory is still 102.8 MB. Free memory was 76.1 MB in the beginning and 75.2 MB in the end (delta: 956.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 270.19 ms. Allocated memory is still 102.8 MB. Free memory was 75.2 MB in the beginning and 64.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 616.55 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 99.0 MB in the end (delta: -35.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. * Witness Printer took 70.61 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 97.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 4 SDslu, 7 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...