./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/multivar_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-acceleration/multivar_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ad235a775c611b52c97f09480429c410266efeb ........................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 18:51:13,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:51:13,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:51:13,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:51:13,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:51:13,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:51:13,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:51:13,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:51:13,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:51:13,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:51:13,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:51:13,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:51:13,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:51:13,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:51:13,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:51:13,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:51:13,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:51:13,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:51:13,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:51:13,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:51:13,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:51:13,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:51:13,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:51:13,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:51:13,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:51:13,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:51:13,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:51:13,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:51:13,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:51:13,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:51:13,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:51:13,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:51:13,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:51:13,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:51:13,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:51:13,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:51:13,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:51:13,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:51:13,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:51:13,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:51:13,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:51:13,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:51:13,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:51:13,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:51:13,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:51:13,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:51:13,796 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:51:13,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:51:13,797 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:51:13,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:51:13,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:51:13,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:51:13,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:51:13,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:51:13,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:51:13,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:51:13,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:51:13,799 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:51:13,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:51:13,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:51:13,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:51:13,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:51:13,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:51:13,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:51:13,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:51:13,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:51:13,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:51:13,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:51:13,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:51:13,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:51:13,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ad235a775c611b52c97f09480429c410266efeb [2019-11-19 18:51:14,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:51:14,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:51:14,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:51:14,121 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:51:14,121 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:51:14,123 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/multivar_1-2.c [2019-11-19 18:51:14,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3c4222a/508c2ad5967040888d3e7bfccd7f3aab/FLAG2cf715cf7 [2019-11-19 18:51:14,625 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:51:14,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/multivar_1-2.c [2019-11-19 18:51:14,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3c4222a/508c2ad5967040888d3e7bfccd7f3aab/FLAG2cf715cf7 [2019-11-19 18:51:15,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d3c4222a/508c2ad5967040888d3e7bfccd7f3aab [2019-11-19 18:51:15,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:51:15,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:51:15,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:51:15,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:51:15,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:51:15,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81e32d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15, skipping insertion in model container [2019-11-19 18:51:15,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,022 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:51:15,037 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:51:15,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:51:15,200 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:51:15,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:51:15,231 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:51:15,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15 WrapperNode [2019-11-19 18:51:15,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:51:15,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:51:15,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:51:15,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:51:15,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:51:15,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:51:15,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:51:15,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:51:15,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... [2019-11-19 18:51:15,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:51:15,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:51:15,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:51:15,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:51:15,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-19 18:51:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:51:15,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:51:15,528 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:51:15,529 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 18:51:15,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:51:15 BoogieIcfgContainer [2019-11-19 18:51:15,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:51:15,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:51:15,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:51:15,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:51:15,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:51:15" (1/3) ... [2019-11-19 18:51:15,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff0aec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:51:15, skipping insertion in model container [2019-11-19 18:51:15,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:51:15" (2/3) ... [2019-11-19 18:51:15,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff0aec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:51:15, skipping insertion in model container [2019-11-19 18:51:15,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:51:15" (3/3) ... [2019-11-19 18:51:15,538 INFO L109 eAbstractionObserver]: Analyzing ICFG multivar_1-2.c [2019-11-19 18:51:15,547 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:51:15,554 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 18:51:15,565 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 18:51:15,589 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:51:15,589 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:51:15,590 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:51:15,590 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:51:15,590 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:51:15,590 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:51:15,590 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:51:15,590 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:51:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-19 18:51:15,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 18:51:15,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:51:15,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 18:51:15,607 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:51:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:51:15,612 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-19 18:51:15,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:51:15,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179438198] [2019-11-19 18:51:15,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:51:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:51:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:51:15,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:51:15,739 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:51:15,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:51:15 BoogieIcfgContainer [2019-11-19 18:51:15,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:51:15,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:51:15,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:51:15,755 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:51:15,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:51:15" (3/4) ... [2019-11-19 18:51:15,757 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 18:51:15,798 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 18:51:15,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:51:15,801 INFO L168 Benchmark]: Toolchain (without parser) took 791.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:51:15,802 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:51:15,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.97 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-19 18:51:15,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:51:15,804 INFO L168 Benchmark]: Boogie Preprocessor took 15.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:51:15,805 INFO L168 Benchmark]: RCFGBuilder took 201.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-19 18:51:15,806 INFO L168 Benchmark]: TraceAbstraction took 222.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:51:15,806 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 18:51:15,811 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.97 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 201.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 222.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] unsigned int x = __VERIFIER_nondet_uint(); [L13] unsigned int y = x + 1; [L15] COND FALSE !(x < 1024) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 5 NumberOfCodeBlocks, 5 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...