./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 56797e61f5ee281c00742e683df6d32e4d423773c50b7f1c748881e4f8402597 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:30:48,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:30:48,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:30:48,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:30:48,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:30:48,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:30:48,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:30:48,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:30:48,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:30:48,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:30:48,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:30:48,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:30:48,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:30:48,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:30:48,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:30:48,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:30:48,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:30:48,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:30:48,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:30:48,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:30:48,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:30:48,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:30:48,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:30:48,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:30:48,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:30:48,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:30:48,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:30:48,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:30:48,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:30:48,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:30:48,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:30:48,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:30:48,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:30:48,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:30:48,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:30:48,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:30:48,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:30:48,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:30:48,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:30:48,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:30:48,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:30:48,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:30:48,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:30:48,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:30:48,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:30:48,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:30:48,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:30:48,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:30:48,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:30:48,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:30:48,176 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:30:48,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:30:48,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:30:48,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:30:48,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:30:48,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:30:48,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:30:48,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:30:48,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:30:48,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:30:48,179 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:30:48,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:30:48,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:30:48,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:30:48,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:30:48,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:30:48,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:30:48,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:30:48,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:30:48,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:30:48,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:30:48,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:30:48,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:30:48,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:30:48,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:30:48,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:30:48,182 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56797e61f5ee281c00742e683df6d32e4d423773c50b7f1c748881e4f8402597 [2021-12-19 15:30:48,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:30:48,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:30:48,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:30:48,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:30:48,413 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:30:48,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2021-12-19 15:30:48,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1bc8a31b/363095c6558344eb8d2e0faf03c9bdd5/FLAG94b3b3520 [2021-12-19 15:30:48,857 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:30:48,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2021-12-19 15:30:48,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1bc8a31b/363095c6558344eb8d2e0faf03c9bdd5/FLAG94b3b3520 [2021-12-19 15:30:49,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1bc8a31b/363095c6558344eb8d2e0faf03c9bdd5 [2021-12-19 15:30:49,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:30:49,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:30:49,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:30:49,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:30:49,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:30:49,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9eef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49, skipping insertion in model container [2021-12-19 15:30:49,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:30:49,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:30:49,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2021-12-19 15:30:49,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:30:49,441 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:30:49,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2021-12-19 15:30:49,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:30:49,480 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:30:49,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49 WrapperNode [2021-12-19 15:30:49,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:30:49,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:30:49,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:30:49,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:30:49,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,512 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-12-19 15:30:49,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:30:49,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:30:49,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:30:49,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:30:49,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:30:49,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:30:49,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:30:49,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:30:49,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (1/1) ... [2021-12-19 15:30:49,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:30:49,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:49,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 15:30:49,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 15:30:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:30:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:30:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:30:49,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:30:49,666 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:30:49,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:30:49,745 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:30:49,750 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:30:49,750 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 15:30:49,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:30:49 BoogieIcfgContainer [2021-12-19 15:30:49,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:30:49,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:30:49,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:30:49,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:30:49,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:30:49" (1/3) ... [2021-12-19 15:30:49,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c27c2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:30:49, skipping insertion in model container [2021-12-19 15:30:49,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:49" (2/3) ... [2021-12-19 15:30:49,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c27c2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:30:49, skipping insertion in model container [2021-12-19 15:30:49,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:30:49" (3/3) ... [2021-12-19 15:30:49,763 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2021-12-19 15:30:49,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:30:49,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-19 15:30:49,810 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:30:49,819 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:30:49,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-19 15:30:49,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:49,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-19 15:30:49,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:49,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-19 15:30:49,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:30:49,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:49,854 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-12-19 15:30:49,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:49,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805076221] [2021-12-19 15:30:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:49,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:49,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:49,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805076221] [2021-12-19 15:30:49,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805076221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:49,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:49,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:30:49,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832623796] [2021-12-19 15:30:49,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:50,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:30:50,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:50,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:30:50,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:50,040 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:50,100 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-12-19 15:30:50,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:30:50,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-19 15:30:50,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:50,109 INFO L225 Difference]: With dead ends: 31 [2021-12-19 15:30:50,109 INFO L226 Difference]: Without dead ends: 12 [2021-12-19 15:30:50,111 INFO L932 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 [2021-12-19 15:30:50,114 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:50,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-19 15:30:50,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-19 15:30:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-12-19 15:30:50,169 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2021-12-19 15:30:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:50,169 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-12-19 15:30:50,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,170 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-12-19 15:30:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-19 15:30:50,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:50,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-19 15:30:50,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:30:50,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:30:50,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:50,172 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-12-19 15:30:50,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:50,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961842698] [2021-12-19 15:30:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:50,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:50,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:50,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961842698] [2021-12-19 15:30:50,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961842698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:50,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:50,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:30:50,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617895436] [2021-12-19 15:30:50,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:50,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:30:50,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:50,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:30:50,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:50,247 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:50,256 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-12-19 15:30:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:30:50,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-19 15:30:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:50,258 INFO L225 Difference]: With dead ends: 11 [2021-12-19 15:30:50,258 INFO L226 Difference]: Without dead ends: 10 [2021-12-19 15:30:50,258 INFO L932 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 [2021-12-19 15:30:50,259 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:50,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:50,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-19 15:30:50,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-19 15:30:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-12-19 15:30:50,263 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2021-12-19 15:30:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:50,263 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-12-19 15:30:50,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-12-19 15:30:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:30:50,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:50,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:50,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:30:50,265 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:30:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:50,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-12-19 15:30:50,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:50,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415536945] [2021-12-19 15:30:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:50,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:50,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:50,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415536945] [2021-12-19 15:30:50,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415536945] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:50,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:50,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:30:50,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791304425] [2021-12-19 15:30:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:50,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:30:50,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:30:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:50,318 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:50,336 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-12-19 15:30:50,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:30:50,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 15:30:50,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:50,337 INFO L225 Difference]: With dead ends: 11 [2021-12-19 15:30:50,337 INFO L226 Difference]: Without dead ends: 10 [2021-12-19 15:30:50,338 INFO L932 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 [2021-12-19 15:30:50,345 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:50,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-12-19 15:30:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-12-19 15:30:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-12-19 15:30:50,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-12-19 15:30:50,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:50,353 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-12-19 15:30:50,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-12-19 15:30:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:30:50,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:50,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:50,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:30:50,356 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-19 15:30:50,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2021-12-19 15:30:50,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:50,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277323299] [2021-12-19 15:30:50,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:50,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:50,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:50,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277323299] [2021-12-19 15:30:50,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277323299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:50,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:50,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:30:50,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27340074] [2021-12-19 15:30:50,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:50,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:30:50,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:50,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:30:50,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:50,404 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:50,413 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-12-19 15:30:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:30:50,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-19 15:30:50,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:50,414 INFO L225 Difference]: With dead ends: 9 [2021-12-19 15:30:50,414 INFO L226 Difference]: Without dead ends: 0 [2021-12-19 15:30:50,415 INFO L932 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 [2021-12-19 15:30:50,427 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:50,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:50,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-19 15:30:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-19 15:30:50,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 15:30:50,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-12-19 15:30:50,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:50,429 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 15:30:50,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-19 15:30:50,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-19 15:30:50,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-19 15:30:50,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-19 15:30:50,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-19 15:30:50,432 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-19 15:30:50,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-19 15:30:50,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-19 15:30:50,448 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-12-19 15:30:50,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-19 15:30:50,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:30:50,449 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-12-19 15:30:50,449 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-12-19 15:30:50,450 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2021-12-19 15:30:50,450 INFO L858 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2021-12-19 15:30:50,450 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-12-19 15:30:50,450 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-19 15:30:50,452 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-12-19 15:30:50,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-12-19 15:30:50,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-19 15:30:50,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-19 15:30:50,453 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-12-19 15:30:50,453 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-12-19 15:30:50,453 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-12-19 15:30:50,454 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-12-19 15:30:50,454 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-12-19 15:30:50,457 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-19 15:30:50,459 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-19 15:30:50,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:30:50 BoogieIcfgContainer [2021-12-19 15:30:50,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-19 15:30:50,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 15:30:50,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 15:30:50,479 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 15:30:50,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:30:49" (3/4) ... [2021-12-19 15:30:50,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-19 15:30:50,497 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-19 15:30:50,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-19 15:30:50,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-19 15:30:50,498 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-19 15:30:50,519 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 15:30:50,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 15:30:50,520 INFO L158 Benchmark]: Toolchain (without parser) took 1230.67ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 76.7MB in the end (delta: -6.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2021-12-19 15:30:50,520 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 81.8MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:30:50,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.75ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 60.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 15:30:50,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.63ms. Allocated memory is still 100.7MB. Free memory was 60.5MB in the beginning and 59.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:30:50,525 INFO L158 Benchmark]: Boogie Preprocessor took 34.60ms. Allocated memory is still 100.7MB. Free memory was 59.0MB in the beginning and 58.2MB in the end (delta: 880.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 15:30:50,525 INFO L158 Benchmark]: RCFGBuilder took 203.75ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 78.7MB in the end (delta: -20.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-12-19 15:30:50,525 INFO L158 Benchmark]: TraceAbstraction took 719.48ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 44.2MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-12-19 15:30:50,526 INFO L158 Benchmark]: Witness Printer took 40.81ms. Allocated memory is still 100.7MB. Free memory was 44.2MB in the beginning and 76.7MB in the end (delta: -32.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-12-19 15:30:50,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 81.8MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.75ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 60.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.63ms. Allocated memory is still 100.7MB. Free memory was 60.5MB in the beginning and 59.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.60ms. Allocated memory is still 100.7MB. Free memory was 59.0MB in the beginning and 58.2MB in the end (delta: 880.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 203.75ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 78.7MB in the end (delta: -20.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * TraceAbstraction took 719.48ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 44.2MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 40.81ms. Allocated memory is still 100.7MB. Free memory was 44.2MB in the beginning and 76.7MB in the end (delta: -32.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 29 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 <= y + 2147483648 && 0 <= x + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-19 15:30:50,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE