./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et3_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et3_true.c -s /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer --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 fddcef50d1620fa12a65326d2aa2b34f63f47255 ................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:20,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:20,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:20,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:20,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:20,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:20,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:20,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:20,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:20,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:20,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:20,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:20,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:20,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:20,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:20,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:20,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:20,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:20,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:20,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:20,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:20,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:20,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:20,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:20,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:20,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:20,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:20,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:20,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:20,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:20,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:20,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:20,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:20,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:20,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:20,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:20,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:20,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:20,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:20,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:20,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:20,620 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 02:56:20,666 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:20,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:20,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:20,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:20,668 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:20,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:20,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:56:20,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:20,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:20,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:20,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:20,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:20,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 02:56:20,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:20,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:20,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:20,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:20,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:20,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:20,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:20,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:20,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:20,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:20,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:20,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:20,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:20,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:20,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:20,673 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-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddcef50d1620fa12a65326d2aa2b34f63f47255 [2020-11-28 02:56:20,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:20,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:20,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:20,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:20,983 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:20,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/../../sv-benchmarks/c/termination-numeric/Et3_true.c [2020-11-28 02:56:21,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/data/e077315b2/9e8aa84346174914bc66a024eedc1e1b/FLAG8cedb7b3b [2020-11-28 02:56:21,539 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:21,539 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/sv-benchmarks/c/termination-numeric/Et3_true.c [2020-11-28 02:56:21,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/data/e077315b2/9e8aa84346174914bc66a024eedc1e1b/FLAG8cedb7b3b [2020-11-28 02:56:21,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/data/e077315b2/9e8aa84346174914bc66a024eedc1e1b [2020-11-28 02:56:21,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:21,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:21,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:21,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:21,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:21,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:21" (1/1) ... [2020-11-28 02:56:21,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ea5317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:21, skipping insertion in model container [2020-11-28 02:56:21,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:21" (1/1) ... [2020-11-28 02:56:21,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:21,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:22,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,139 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:22,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,171 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:22,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22 WrapperNode [2020-11-28 02:56:22,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:22,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:22,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:22,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:22,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:22,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:22,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:22,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/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 [2020-11-28 02:56:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2020-11-28 02:56:22,325 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2020-11-28 02:56:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:22,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:22,553 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:22,553 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:56:22,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22 BoogieIcfgContainer [2020-11-28 02:56:22,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:22,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:22,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:22,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:22,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:21" (1/3) ... [2020-11-28 02:56:22,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27350914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (2/3) ... [2020-11-28 02:56:22,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27350914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22" (3/3) ... [2020-11-28 02:56:22,563 INFO L111 eAbstractionObserver]: Analyzing ICFG Et3_true.c [2020-11-28 02:56:22,572 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:22,575 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 02:56:22,585 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 02:56:22,608 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:22,608 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:22,608 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:22,608 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:22,608 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:22,609 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:22,609 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:22,609 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-28 02:56:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 02:56:22,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:22,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 02:56:22,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:56:22,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:22,633 INFO L82 PathProgramCache]: Analyzing trace with hash 47762, now seen corresponding path program 1 times [2020-11-28 02:56:22,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:22,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727106723] [2020-11-28 02:56:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:22,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:22,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:22,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:22,740 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:22,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:22,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:22 BoogieIcfgContainer [2020-11-28 02:56:22,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:22,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:22,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:22,757 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:22,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22" (3/4) ... [2020-11-28 02:56:22,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:22,791 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_48ac4997-217e-4ae5-ad69-8f51b2197a87/bin/uautomizer/witness.graphml [2020-11-28 02:56:22,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:22,793 INFO L168 Benchmark]: Toolchain (without parser) took 864.12 ms. Allocated memory is still 98.6 MB. Free memory was 67.0 MB in the beginning and 50.6 MB in the end (delta: 16.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:22,794 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory is still 31.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:22,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.05 ms. Allocated memory is still 98.6 MB. Free memory was 66.8 MB in the beginning and 77.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:22,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 98.6 MB. Free memory was 77.2 MB in the beginning and 75.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:22,797 INFO L168 Benchmark]: Boogie Preprocessor took 36.25 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 75.2 MB in the end (delta: 505.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:22,798 INFO L168 Benchmark]: RCFGBuilder took 305.42 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 63.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:22,799 INFO L168 Benchmark]: TraceAbstraction took 198.75 ms. Allocated memory is still 98.6 MB. Free memory was 63.0 MB in the beginning and 52.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:22,800 INFO L168 Benchmark]: Witness Printer took 34.78 ms. Allocated memory is still 98.6 MB. Free memory was 52.2 MB in the beginning and 50.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:22,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 73.4 MB. Free memory is still 31.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.05 ms. Allocated memory is still 98.6 MB. Free memory was 66.8 MB in the beginning and 77.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 98.6 MB. Free memory was 77.2 MB in the beginning and 75.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.25 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 75.2 MB in the end (delta: 505.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 305.42 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 63.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 198.75 ms. Allocated memory is still 98.6 MB. Free memory was 63.0 MB in the beginning and 52.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 34.78 ms. Allocated memory is still 98.6 MB. Free memory was 52.2 MB in the beginning and 50.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 32]: integer overflow possible integer overflow possible We found a FailurePath: [L22] int x = __VERIFIER_nondet_int(); [L23] int y = __VERIFIER_nondet_int(); [L24] int z = __VERIFIER_nondet_int(); [L30] int x = __VERIFIER_nondet_int(); [L31] COND TRUE x < 0 [L32] -x - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...