./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/oomInt.c_1.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/ldv-regression/oomInt.c_1.i -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 c6e67db8c16273e1bea0fabff61d65ba57872585 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:58:10,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:58:10,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:58:10,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:58:10,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:58:10,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:58:10,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:58:10,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:58:10,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:58:10,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:58:10,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:58:10,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:58:10,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:58:10,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:58:10,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:58:10,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:58:10,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:58:10,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:58:10,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:58:10,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:58:10,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:58:10,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:58:10,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:58:10,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:58:10,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:58:10,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:58:10,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:58:10,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:58:10,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:58:10,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:58:10,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:58:10,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:58:10,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:58:10,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:58:10,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:58:10,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:58:10,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:58:10,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:58:10,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:58:10,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:58:10,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:58:10,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:58:10,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:58:10,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:58:10,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:58:10,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:58:10,730 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:58:10,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:58:10,731 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:58:10,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:58:10,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:58:10,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:58:10,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:58:10,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:58:10,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:58:10,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:58:10,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:58:10,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:58:10,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:58:10,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:58:10,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:58:10,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:58:10,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:58:10,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:58:10,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:58:10,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:58:10,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:58:10,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:58:10,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:58:10,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:58:10,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:58:10,736 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 -> c6e67db8c16273e1bea0fabff61d65ba57872585 [2020-07-28 17:58:11,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:58:11,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:58:11,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:58:11,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:58:11,079 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:58:11,080 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/oomInt.c_1.i [2020-07-28 17:58:11,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7da6f761/60c387cd9a804461bea7489c400c7736/FLAGc85801c9f [2020-07-28 17:58:11,567 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:58:11,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/oomInt.c_1.i [2020-07-28 17:58:11,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7da6f761/60c387cd9a804461bea7489c400c7736/FLAGc85801c9f [2020-07-28 17:58:11,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7da6f761/60c387cd9a804461bea7489c400c7736 [2020-07-28 17:58:11,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:58:11,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:58:11,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:11,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:58:11,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:58:11,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:11" (1/1) ... [2020-07-28 17:58:11,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4921b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:11, skipping insertion in model container [2020-07-28 17:58:11,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:11" (1/1) ... [2020-07-28 17:58:11,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:58:11,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:58:12,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:12,170 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:58:12,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:12,203 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:58:12,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12 WrapperNode [2020-07-28 17:58:12,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:12,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:12,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:58:12,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:58:12,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:12,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:58:12,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:58:12,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:58:12,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (1/1) ... [2020-07-28 17:58:12,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:58:12,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:58:12,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:58:12,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:58:12,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (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 [2020-07-28 17:58:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:58:12,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:58:12,639 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:58:12,639 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-28 17:58:12,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:12 BoogieIcfgContainer [2020-07-28 17:58:12,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:58:12,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:58:12,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:58:12,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:58:12,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:58:11" (1/3) ... [2020-07-28 17:58:12,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf83a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:12, skipping insertion in model container [2020-07-28 17:58:12,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:12" (2/3) ... [2020-07-28 17:58:12,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf83a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:12, skipping insertion in model container [2020-07-28 17:58:12,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:12" (3/3) ... [2020-07-28 17:58:12,651 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.c_1.i [2020-07-28 17:58:12,662 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:58:12,669 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:58:12,683 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:58:12,707 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:58:12,707 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:58:12,708 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:58:12,708 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:58:12,708 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:58:12,708 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:58:12,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:58:12,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:58:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-07-28 17:58:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-28 17:58:12,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:12,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-28 17:58:12,732 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:12,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:12,738 INFO L82 PathProgramCache]: Analyzing trace with hash 889508777, now seen corresponding path program 1 times [2020-07-28 17:58:12,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:12,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328651123] [2020-07-28 17:58:12,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:58:12,983 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} ~p~0 := 0; {13#true} is VALID [2020-07-28 17:58:12,985 INFO L280 TraceCheckUtils]: 1: Hoare triple {13#true} havoc main_#res;havoc firstFunction_#t~ret0;abs_int_#in~i := -3;havoc abs_int_#res;havoc abs_int_~i;abs_int_~i := abs_int_#in~i; {15#(= 0 (+ ULTIMATE.start_abs_int_~i 3))} is VALID [2020-07-28 17:58:12,986 INFO L280 TraceCheckUtils]: 2: Hoare triple {15#(= 0 (+ ULTIMATE.start_abs_int_~i 3))} assume abs_int_~i < 0;abs_int_#res := -abs_int_~i; {16#(<= 3 |ULTIMATE.start_abs_int_#res|)} is VALID [2020-07-28 17:58:12,988 INFO L280 TraceCheckUtils]: 3: Hoare triple {16#(<= 3 |ULTIMATE.start_abs_int_#res|)} firstFunction_#t~ret0 := abs_int_#res;assume -2147483648 <= firstFunction_#t~ret0 && firstFunction_#t~ret0 <= 2147483647;~p~0 := firstFunction_#t~ret0;havoc firstFunction_#t~ret0; {17#(<= 3 ~p~0)} is VALID [2020-07-28 17:58:12,989 INFO L280 TraceCheckUtils]: 4: Hoare triple {17#(<= 3 ~p~0)} assume !(~p~0 >= 0); {14#false} is VALID [2020-07-28 17:58:12,990 INFO L280 TraceCheckUtils]: 5: Hoare triple {14#false} assume !false; {14#false} is VALID [2020-07-28 17:58:12,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:58:12,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328651123] [2020-07-28 17:58:12,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:58:12,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 17:58:12,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106924772] [2020-07-28 17:58:13,006 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-07-28 17:58:13,007 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:58:13,013 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 17:58:13,035 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:13,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 17:58:13,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:58:13,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 17:58:13,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:58:13,049 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-07-28 17:58:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:13,165 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-07-28 17:58:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:58:13,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-07-28 17:58:13,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:58:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 17:58:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-07-28 17:58:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 17:58:13,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-07-28 17:58:13,176 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 16 transitions. [2020-07-28 17:58:13,241 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:13,249 INFO L225 Difference]: With dead ends: 15 [2020-07-28 17:58:13,249 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:58:13,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 17:58:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:58:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:58:13,279 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:58:13,280 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:13,281 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:13,281 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:13,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:13,282 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:58:13,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:13,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:13,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:13,283 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:13,284 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:13,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:13,284 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:58:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:13,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:13,285 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:13,285 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:58:13,286 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:58:13,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:58:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:58:13,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-07-28 17:58:13,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:58:13,288 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:58:13,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 17:58:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:13,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:13,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:58:13,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:58:13,316 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:58:13,317 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:58:13,317 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:58:13,317 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-28 17:58:13,317 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:58:13,317 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2020-07-28 17:58:13,318 INFO L264 CegarLoopResult]: At program point L23(lines 15 24) the Hoare annotation is: (and (= 0 (+ ULTIMATE.start_abs_int_~i 3)) (<= 3 |ULTIMATE.start_abs_int_#res|)) [2020-07-28 17:58:13,319 INFO L268 CegarLoopResult]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-07-28 17:58:13,319 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-07-28 17:58:13,319 INFO L268 CegarLoopResult]: For program point L5(lines 32 35) no Hoare annotation was computed. [2020-07-28 17:58:13,324 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:58:13,324 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:58:13,324 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 17:58:13,324 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 17:58:13,325 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:58:13,325 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:58:13,325 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:58:13,325 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-28 17:58:13,326 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 17:58:13,326 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 17:58:13,326 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:58:13,326 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:58:13,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:58:13 BoogieIcfgContainer [2020-07-28 17:58:13,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:58:13,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:58:13,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:58:13,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:58:13,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:12" (3/4) ... [2020-07-28 17:58:13,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:58:13,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-07-28 17:58:13,359 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:58:13,391 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 0 == i + 3 && 3 <= \result [2020-07-28 17:58:13,406 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:58:13,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:58:13,410 INFO L168 Benchmark]: Toolchain (without parser) took 1451.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -106.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:13,411 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:13,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.86 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 945.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:13,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:13,413 INFO L168 Benchmark]: Boogie Preprocessor took 122.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:13,414 INFO L168 Benchmark]: RCFGBuilder took 275.04 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:13,415 INFO L168 Benchmark]: TraceAbstraction took 694.72 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:13,416 INFO L168 Benchmark]: Witness Printer took 67.70 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:13,420 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.86 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 945.5 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 38.48 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 122.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 275.04 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 694.72 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: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.70 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 == i + 3 && 3 <= \result - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 9 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...