./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/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_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/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 64bit --witnessprinter.graph.data.programhash c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc .......................................................................................................................................................................................................................................................................................................................................................... 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 00:21:30,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:30,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:30,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:30,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:30,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:30,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:30,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:30,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:30,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:30,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:30,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:30,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:30,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:30,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:30,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:30,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:30,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:30,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:30,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:30,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:30,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:30,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:30,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:30,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:30,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:30,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:30,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:30,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:30,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:30,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:30,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:30,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:30,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:30,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:30,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:30,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:30,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:30,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:30,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:30,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:30,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:21:30,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:30,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:30,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:30,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:30,354 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:30,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:30,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:21:30,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:30,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:30,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:30,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:30,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:30,363 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:21:30,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:30,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:30,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:30,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:30,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:30,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:30,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:30,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:30,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:30,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:30,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:30,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:30,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:30,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:30,365 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_a7c5995a-a8cb-4d92-8647-7693db4328cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2021-10-11 00:21:30,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:30,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:30,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:30,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:30,721 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:30,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-10-11 00:21:30,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/data/d91b11a53/612dfa40e8924b14a448db847346e085/FLAG25caea2b2 [2021-10-11 00:21:31,281 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:31,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-10-11 00:21:31,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/data/d91b11a53/612dfa40e8924b14a448db847346e085/FLAG25caea2b2 [2021-10-11 00:21:31,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/data/d91b11a53/612dfa40e8924b14a448db847346e085 [2021-10-11 00:21:31,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:31,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:31,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:31,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:31,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:31,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52391878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31, skipping insertion in model container [2021-10-11 00:21:31,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:31,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:31,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:31,866 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:31,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:31,899 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:31,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31 WrapperNode [2021-10-11 00:21:31,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:31,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:31,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:31,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:31,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:31,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:31,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:31,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:31,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... [2021-10-11 00:21:31,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:31,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:31,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:31,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:31,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/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 00:21:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:32,248 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:32,248 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:21:32,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:32 BoogieIcfgContainer [2021-10-11 00:21:32,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:32,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:32,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:32,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:32,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:31" (1/3) ... [2021-10-11 00:21:32,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7beaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:32, skipping insertion in model container [2021-10-11 00:21:32,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:31" (2/3) ... [2021-10-11 00:21:32,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7beaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:32, skipping insertion in model container [2021-10-11 00:21:32,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:32" (3/3) ... [2021-10-11 00:21:32,263 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo_step2-1.c [2021-10-11 00:21:32,279 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:32,282 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:21:32,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:21:32,317 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:32,317 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:32,318 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:32,318 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:32,318 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:32,318 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:32,318 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:32,318 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:32,330 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-10-11 00:21:32,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:21:32,334 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:32,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:21:32,335 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:21:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:32,341 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2021-10-11 00:21:32,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:32,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443847692] [2021-10-11 00:21:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:32,493 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 00:21:32,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443847692] [2021-10-11 00:21:32,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:32,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 00:21:32,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387529593] [2021-10-11 00:21:32,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:32,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:32,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:32,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:32,516 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2021-10-11 00:21:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:32,555 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-11 00:21:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:32,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 00:21:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:32,565 INFO L225 Difference]: With dead ends: 15 [2021-10-11 00:21:32,565 INFO L226 Difference]: Without dead ends: 6 [2021-10-11 00:21:32,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 00:21:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-10-11 00:21:32,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-11 00:21:32,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:21:32,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-10-11 00:21:32,599 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-10-11 00:21:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:32,599 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-10-11 00:21:32,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-10-11 00:21:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 00:21:32,600 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:32,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 00:21:32,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:32,601 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:21:32,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:32,602 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2021-10-11 00:21:32,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:32,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916860514] [2021-10-11 00:21:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:32,626 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 00:21:32,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916860514] [2021-10-11 00:21:32,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:32,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:32,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717014037] [2021-10-11 00:21:32,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:32,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:32,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:32,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:32,631 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2021-10-11 00:21:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:32,655 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-11 00:21:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:32,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 00:21:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:32,657 INFO L225 Difference]: With dead ends: 10 [2021-10-11 00:21:32,657 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 00:21:32,658 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 00:21:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 00:21:32,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 00:21:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 00:21:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 00:21:32,661 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-10-11 00:21:32,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:32,662 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 00:21:32,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:32,662 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-11 00:21:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 00:21:32,662 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:32,663 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-10-11 00:21:32,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:21:32,663 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:21:32,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:32,664 INFO L82 PathProgramCache]: Analyzing trace with hash -423045501, now seen corresponding path program 1 times [2021-10-11 00:21:32,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:32,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067428175] [2021-10-11 00:21:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:32,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:32,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067428175] [2021-10-11 00:21:32,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546287056] [2021-10-11 00:21:32,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:21:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:32,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:21:32,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:32,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:32,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:21:32,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-11 00:21:32,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318230337] [2021-10-11 00:21:32,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:21:32,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:32,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:21:32,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:21:32,826 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2021-10-11 00:21:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:32,844 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-11 00:21:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:21:32,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 00:21:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:32,846 INFO L225 Difference]: With dead ends: 9 [2021-10-11 00:21:32,846 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:21:32,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:21:32,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:21:32,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:21:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:21:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:21:32,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 00:21:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:32,848 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:32,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:21:32,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:21:32,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:21:33,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 00:21:33,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:21:33,105 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-11 00:21:33,106 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:21:33,107 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2021-10-11 00:21:33,107 INFO L262 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-10-11 00:21:33,107 INFO L262 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2021-10-11 00:21:33,108 INFO L262 CegarLoopResult]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2021-10-11 00:21:33,108 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-11 00:21:33,108 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:21:33,108 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:21:33,109 INFO L258 CegarLoopResult]: At program point L20(lines 11 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-11 00:21:33,109 INFO L258 CegarLoopResult]: At program point L16-2(lines 16 18) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 1))) [2021-10-11 00:21:33,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:33 BoogieIcfgContainer [2021-10-11 00:21:33,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:33,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:33,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:33,132 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:33,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:32" (3/4) ... [2021-10-11 00:21:33,135 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:21:33,142 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:21:33,142 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:21:33,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7c5995a-a8cb-4d92-8647-7693db4328cd/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:21:33,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:33,188 INFO L168 Benchmark]: Toolchain (without parser) took 1503.21 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 71.0 MB in the beginning and 76.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:33,189 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 98.6 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:33,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.97 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 70.7 MB in the beginning and 127.4 MB in the end (delta: -56.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:33,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.98 ms. Allocated memory is still 148.9 MB. Free memory was 127.4 MB in the beginning and 126.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:33,195 INFO L168 Benchmark]: Boogie Preprocessor took 18.36 ms. Allocated memory is still 148.9 MB. Free memory was 126.1 MB in the beginning and 125.3 MB in the end (delta: 783.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:33,196 INFO L168 Benchmark]: RCFGBuilder took 287.92 ms. Allocated memory is still 148.9 MB. Free memory was 125.3 MB in the beginning and 116.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:33,197 INFO L168 Benchmark]: TraceAbstraction took 876.97 ms. Allocated memory is still 148.9 MB. Free memory was 115.7 MB in the beginning and 78.6 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:33,198 INFO L168 Benchmark]: Witness Printer took 55.02 ms. Allocated memory is still 148.9 MB. Free memory was 78.6 MB in the beginning and 76.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:33,204 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 98.6 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.97 ms. Allocated memory was 98.6 MB in the beginning and 148.9 MB in the end (delta: 50.3 MB). Free memory was 70.7 MB in the beginning and 127.4 MB in the end (delta: -56.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.98 ms. Allocated memory is still 148.9 MB. Free memory was 127.4 MB in the beginning and 126.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.36 ms. Allocated memory is still 148.9 MB. Free memory was 126.1 MB in the beginning and 125.3 MB in the end (delta: 783.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 287.92 ms. Allocated memory is still 148.9 MB. Free memory was 125.3 MB in the beginning and 116.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 876.97 ms. Allocated memory is still 148.9 MB. Free memory was 115.7 MB in the beginning and 78.6 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 55.02 ms. Allocated memory is still 148.9 MB. Free memory was 78.6 MB in the beginning and 76.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 21 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 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...