./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/id2_b5_o10.c --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/recursive-simple/id2_b5_o10.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 6f330f622534898bf170bbd5a7ac37bee3deb574 .................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/recursive-simple/id2_b5_o10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 6f330f622534898bf170bbd5a7ac37bee3deb574 ..................................................................................................................................................................................................................................................................................................................................................................... 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 19:11:25,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:11:25,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:11:25,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:11:25,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:11:25,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:11:25,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:11:25,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:11:25,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:11:25,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:11:25,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:11:25,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:11:25,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:11:25,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:11:25,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:11:25,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:11:25,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:11:25,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:11:25,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:11:25,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:11:25,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:11:25,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:11:25,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:11:25,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:11:25,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:11:25,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:11:25,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:11:25,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:11:25,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:11:25,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:11:25,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:11:25,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:11:25,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:11:25,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:11:25,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:11:25,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:11:25,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:11:25,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:11:25,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:11:25,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:11:25,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:11:25,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 19:11:25,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:11:25,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:11:25,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:11:25,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:11:25,557 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:11:25,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:11:25,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:11:25,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 19:11:25,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:11:25,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:11:25,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:11:25,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:11:25,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:11:25,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:11:25,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:11:25,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:11:25,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:11:25,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:11:25,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:11:25,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:11:25,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:11:25,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:11:25,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:11:25,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:11:25,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:11:25,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 19:11:25,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 19:11:25,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:11:25,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:11:25,563 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 -> 6f330f622534898bf170bbd5a7ac37bee3deb574 [2020-07-28 19:11:25,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:11:25,886 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:11:25,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:11:25,891 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:11:25,891 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:11:25,892 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2020-07-28 19:11:25,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae580641f/a93ea426f1194c2e94a9406839a42b66/FLAG0b07f55ef [2020-07-28 19:11:26,400 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:11:26,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2020-07-28 19:11:26,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae580641f/a93ea426f1194c2e94a9406839a42b66/FLAG0b07f55ef [2020-07-28 19:11:26,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae580641f/a93ea426f1194c2e94a9406839a42b66 [2020-07-28 19:11:26,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:11:26,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:11:26,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:11:26,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:11:26,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:11:26,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:11:26" (1/1) ... [2020-07-28 19:11:26,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d3055d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:26, skipping insertion in model container [2020-07-28 19:11:26,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:11:26" (1/1) ... [2020-07-28 19:11:26,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:11:26,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:11:27,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:11:27,069 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:11:27,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:11:27,113 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:11:27,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27 WrapperNode [2020-07-28 19:11:27,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:11:27,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:11:27,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:11:27,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:11:27,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:11:27,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:11:27,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:11:27,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:11:27,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (1/1) ... [2020-07-28 19:11:27,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:11:27,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:11:27,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:11:27,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:11:27,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (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 19:11:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-07-28 19:11:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-07-28 19:11:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:11:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:11:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-28 19:11:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-28 19:11:27,604 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:11:27,604 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 19:11:27,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:11:27 BoogieIcfgContainer [2020-07-28 19:11:27,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:11:27,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:11:27,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:11:27,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:11:27,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:11:26" (1/3) ... [2020-07-28 19:11:27,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b97984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:11:27, skipping insertion in model container [2020-07-28 19:11:27,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:27" (2/3) ... [2020-07-28 19:11:27,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b97984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:11:27, skipping insertion in model container [2020-07-28 19:11:27,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:11:27" (3/3) ... [2020-07-28 19:11:27,617 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b5_o10.c [2020-07-28 19:11:27,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:11:27,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 19:11:27,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 19:11:27,666 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:11:27,666 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:11:27,666 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:11:27,666 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:11:27,667 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:11:27,667 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:11:27,667 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:11:27,667 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:11:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-28 19:11:27,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 19:11:27,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:11:27,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:11:27,691 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:11:27,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:11:27,697 INFO L82 PathProgramCache]: Analyzing trace with hash -394807891, now seen corresponding path program 1 times [2020-07-28 19:11:27,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 19:11:27,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242022614] [2020-07-28 19:11:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 19:11:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:11:27,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 19:11:27,811 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 19:11:27,821 INFO L168 Benchmark]: Toolchain (without parser) took 985.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -130.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:27,823 INFO L168 Benchmark]: CDTParser took 0.28 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 19:11:27,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.11 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:27,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:27,827 INFO L168 Benchmark]: Boogie Preprocessor took 26.62 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:27,829 INFO L168 Benchmark]: RCFGBuilder took 379.45 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 19:11:27,830 INFO L168 Benchmark]: TraceAbstraction took 206.56 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:27,839 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 0.28 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 275.11 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.62 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 379.45 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 206.56 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 19:11:29,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 19:11:29,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 19:11:29,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 19:11:29,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 19:11:29,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 19:11:29,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 19:11:29,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 19:11:29,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 19:11:29,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 19:11:29,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 19:11:29,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 19:11:29,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 19:11:29,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 19:11:29,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 19:11:29,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 19:11:29,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 19:11:29,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 19:11:29,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 19:11:29,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 19:11:29,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 19:11:29,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 19:11:29,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 19:11:29,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 19:11:29,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 19:11:29,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 19:11:29,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 19:11:29,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 19:11:29,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 19:11:29,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 19:11:29,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 19:11:29,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 19:11:29,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 19:11:29,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 19:11:29,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 19:11:29,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 19:11:29,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 19:11:29,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 19:11:29,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 19:11:29,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 19:11:29,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 19:11:29,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 19:11:29,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 19:11:29,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 19:11:29,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 19:11:29,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 19:11:29,855 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 19:11:29,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 19:11:29,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 19:11:29,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 19:11:29,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 19:11:29,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 19:11:29,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 19:11:29,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 19:11:29,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 19:11:29,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 19:11:29,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 19:11:29,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 19:11:29,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 19:11:29,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 19:11:29,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 19:11:29,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 19:11:29,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 19:11:29,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 19:11:29,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 19:11:29,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 19:11:29,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 19:11:29,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 19:11:29,860 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 19:11:29,861 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 19:11:29,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 19:11:29,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 19:11:29,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 19:11:29,862 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 6f330f622534898bf170bbd5a7ac37bee3deb574 [2020-07-28 19:11:30,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 19:11:30,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 19:11:30,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 19:11:30,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 19:11:30,205 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 19:11:30,206 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2020-07-28 19:11:30,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3b13b544/116fb348459f40fabf4771e810cb87d8/FLAG961f6c654 [2020-07-28 19:11:30,769 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 19:11:30,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2020-07-28 19:11:30,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3b13b544/116fb348459f40fabf4771e810cb87d8/FLAG961f6c654 [2020-07-28 19:11:31,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3b13b544/116fb348459f40fabf4771e810cb87d8 [2020-07-28 19:11:31,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 19:11:31,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 19:11:31,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 19:11:31,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 19:11:31,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 19:11:31,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4785da84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31, skipping insertion in model container [2020-07-28 19:11:31,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 19:11:31,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 19:11:31,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:11:31,424 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 19:11:31,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 19:11:31,470 INFO L208 MainTranslator]: Completed translation [2020-07-28 19:11:31,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31 WrapperNode [2020-07-28 19:11:31,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 19:11:31,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 19:11:31,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 19:11:31,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 19:11:31,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 19:11:31,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 19:11:31,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 19:11:31,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 19:11:31,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (1/1) ... [2020-07-28 19:11:31,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 19:11:31,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 19:11:31,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 19:11:31,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 19:11:31,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (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 19:11:31,713 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-07-28 19:11:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-07-28 19:11:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 19:11:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 19:11:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-28 19:11:31,714 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-28 19:11:31,991 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 19:11:31,992 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 19:11:31,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:11:31 BoogieIcfgContainer [2020-07-28 19:11:31,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 19:11:31,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 19:11:31,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 19:11:32,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 19:11:32,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 07:11:31" (1/3) ... [2020-07-28 19:11:32,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394e5968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:11:32, skipping insertion in model container [2020-07-28 19:11:32,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 07:11:31" (2/3) ... [2020-07-28 19:11:32,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394e5968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 07:11:32, skipping insertion in model container [2020-07-28 19:11:32,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:11:31" (3/3) ... [2020-07-28 19:11:32,005 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b5_o10.c [2020-07-28 19:11:32,018 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 19:11:32,029 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 19:11:32,047 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 19:11:32,103 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 19:11:32,104 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 19:11:32,104 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 19:11:32,105 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 19:11:32,105 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 19:11:32,106 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 19:11:32,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 19:11:32,107 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 19:11:32,146 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-28 19:11:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 19:11:32,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 19:11:32,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 19:11:32,168 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 19:11:32,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 19:11:32,181 INFO L82 PathProgramCache]: Analyzing trace with hash -394807891, now seen corresponding path program 1 times [2020-07-28 19:11:32,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 19:11:32,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819271886] [2020-07-28 19:11:32,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 19:11:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:11:32,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-28 19:11:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 19:11:32,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 19:11:32,408 INFO L280 TraceCheckUtils]: 0: Hoare triple {26#true} havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~input~0, main_~result~0;main_~input~0 := main_#t~nondet2;havoc main_#t~nondet2; {26#true} is VALID [2020-07-28 19:11:32,410 INFO L263 TraceCheckUtils]: 1: Hoare triple {26#true} call main_#t~ret3 := id(main_~input~0); {26#true} is VALID [2020-07-28 19:11:32,411 INFO L280 TraceCheckUtils]: 2: Hoare triple {26#true} ~x := #in~x; {26#true} is VALID [2020-07-28 19:11:32,412 INFO L280 TraceCheckUtils]: 3: Hoare triple {26#true} assume 0bv32 == ~x;#res := 0bv32; {40#(= |id_#res| (_ bv0 32))} is VALID [2020-07-28 19:11:32,413 INFO L280 TraceCheckUtils]: 4: Hoare triple {40#(= |id_#res| (_ bv0 32))} assume true; {40#(= |id_#res| (_ bv0 32))} is VALID [2020-07-28 19:11:32,418 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {40#(= |id_#res| (_ bv0 32))} {26#true} #42#return; {47#(= |ULTIMATE.start_main_#t~ret3| (_ bv0 32))} is VALID [2020-07-28 19:11:32,420 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#(= |ULTIMATE.start_main_#t~ret3| (_ bv0 32))} main_~result~0 := main_#t~ret3;havoc main_#t~ret3; {51#(= (_ bv0 32) ULTIMATE.start_main_~result~0)} is VALID [2020-07-28 19:11:32,422 INFO L280 TraceCheckUtils]: 7: Hoare triple {51#(= (_ bv0 32) ULTIMATE.start_main_~result~0)} assume 10bv32 == main_~result~0; {27#false} is VALID [2020-07-28 19:11:32,423 INFO L280 TraceCheckUtils]: 8: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-28 19:11:32,426 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 19:11:32,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 19:11:32,570 INFO L280 TraceCheckUtils]: 8: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-28 19:11:32,571 INFO L280 TraceCheckUtils]: 7: Hoare triple {61#(not (= (_ bv10 32) ULTIMATE.start_main_~result~0))} assume 10bv32 == main_~result~0; {27#false} is VALID [2020-07-28 19:11:32,572 INFO L280 TraceCheckUtils]: 6: Hoare triple {65#(not (= (bvadd |ULTIMATE.start_main_#t~ret3| (_ bv4294967286 32)) (_ bv0 32)))} main_~result~0 := main_#t~ret3;havoc main_#t~ret3; {61#(not (= (_ bv10 32) ULTIMATE.start_main_~result~0))} is VALID [2020-07-28 19:11:32,574 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {72#(not (= (bvadd |id_#res| (_ bv4294967286 32)) (_ bv0 32)))} {26#true} #42#return; {65#(not (= (bvadd |ULTIMATE.start_main_#t~ret3| (_ bv4294967286 32)) (_ bv0 32)))} is VALID [2020-07-28 19:11:32,575 INFO L280 TraceCheckUtils]: 4: Hoare triple {72#(not (= (bvadd |id_#res| (_ bv4294967286 32)) (_ bv0 32)))} assume true; {72#(not (= (bvadd |id_#res| (_ bv4294967286 32)) (_ bv0 32)))} is VALID [2020-07-28 19:11:32,578 INFO L280 TraceCheckUtils]: 3: Hoare triple {26#true} assume 0bv32 == ~x;#res := 0bv32; {72#(not (= (bvadd |id_#res| (_ bv4294967286 32)) (_ bv0 32)))} is VALID [2020-07-28 19:11:32,579 INFO L280 TraceCheckUtils]: 2: Hoare triple {26#true} ~x := #in~x; {26#true} is VALID [2020-07-28 19:11:32,579 INFO L263 TraceCheckUtils]: 1: Hoare triple {26#true} call main_#t~ret3 := id(main_~input~0); {26#true} is VALID [2020-07-28 19:11:32,580 INFO L280 TraceCheckUtils]: 0: Hoare triple {26#true} havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~input~0, main_~result~0;main_~input~0 := main_#t~nondet2;havoc main_#t~nondet2; {26#true} is VALID [2020-07-28 19:11:32,581 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 19:11:32,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819271886] [2020-07-28 19:11:32,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 19:11:32,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 19:11:32,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564068286] [2020-07-28 19:11:32,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-07-28 19:11:32,594 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 19:11:32,598 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 19:11:32,626 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:11:32,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 19:11:32,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 19:11:32,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 19:11:32,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:11:32,639 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 8 states. [2020-07-28 19:11:32,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:11:32,914 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-07-28 19:11:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 19:11:32,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-07-28 19:11:32,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 19:11:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 19:11:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 38 transitions. [2020-07-28 19:11:32,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 19:11:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 38 transitions. [2020-07-28 19:11:32,931 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 38 transitions. [2020-07-28 19:11:32,996 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 19:11:33,003 INFO L225 Difference]: With dead ends: 33 [2020-07-28 19:11:33,004 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 19:11:33,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 19:11:33,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 19:11:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 19:11:33,033 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 19:11:33,034 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 19:11:33,035 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 19:11:33,035 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 19:11:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:11:33,036 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 19:11:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 19:11:33,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:11:33,037 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:11:33,037 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 19:11:33,038 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 19:11:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 19:11:33,038 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 19:11:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 19:11:33,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:11:33,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 19:11:33,040 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 19:11:33,040 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 19:11:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 19:11:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 19:11:33,042 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-07-28 19:11:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 19:11:33,043 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 19:11:33,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 19:11:33,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 19:11:33,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 19:11:33,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 19:11:33,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 19:11:33,327 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-07-28 19:11:33,327 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-28 19:11:33,327 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-07-28 19:11:33,327 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-07-28 19:11:33,328 INFO L268 CegarLoopResult]: For program point id2EXIT(lines 14 19) no Hoare annotation was computed. [2020-07-28 19:11:33,328 INFO L271 CegarLoopResult]: At program point id2ENTRY(lines 14 19) the Hoare annotation is: true [2020-07-28 19:11:33,328 INFO L268 CegarLoopResult]: For program point id2FINAL(lines 14 19) no Hoare annotation was computed. [2020-07-28 19:11:33,328 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 19:11:33,328 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 19:11:33,328 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 19:11:33,329 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-28 19:11:33,329 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-07-28 19:11:33,329 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2020-07-28 19:11:33,329 INFO L271 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-07-28 19:11:33,329 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-28 19:11:33,330 INFO L268 CegarLoopResult]: For program point L21(lines 21 27) no Hoare annotation was computed. [2020-07-28 19:11:33,330 INFO L268 CegarLoopResult]: For program point idFINAL(lines 7 12) no Hoare annotation was computed. [2020-07-28 19:11:33,330 INFO L268 CegarLoopResult]: For program point idEXIT(lines 7 12) no Hoare annotation was computed. [2020-07-28 19:11:33,330 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-07-28 19:11:33,330 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-07-28 19:11:33,330 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-28 19:11:33,331 INFO L268 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-07-28 19:11:33,331 INFO L271 CegarLoopResult]: At program point idENTRY(lines 7 12) the Hoare annotation is: true [2020-07-28 19:11:33,336 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 19:11:33,336 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 19:11:33,336 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 19:11:33,336 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 19:11:33,336 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 19:11:33,336 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-28 19:11:33,337 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 19:11:33,337 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 19:11:33,337 WARN L170 areAnnotationChecker]: id2FINAL has no Hoare annotation [2020-07-28 19:11:33,337 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 19:11:33,337 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: idFINAL has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: id2EXIT has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 19:11:33,338 WARN L170 areAnnotationChecker]: idEXIT has no Hoare annotation [2020-07-28 19:11:33,339 WARN L170 areAnnotationChecker]: idEXIT has no Hoare annotation [2020-07-28 19:11:33,339 WARN L170 areAnnotationChecker]: L9-1 has no Hoare annotation [2020-07-28 19:11:33,339 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 19:11:33,339 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 19:11:33,339 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 19:11:33,339 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 19:11:33,340 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 19:11:33,340 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 19:11:33,340 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 19:11:33,340 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 19:11:33,340 INFO L163 areAnnotationChecker]: CFG has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 19:11:33,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 07:11:33 BoogieIcfgContainer [2020-07-28 19:11:33,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 19:11:33,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 19:11:33,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 19:11:33,347 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 19:11:33,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 07:11:31" (3/4) ... [2020-07-28 19:11:33,352 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 19:11:33,359 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2020-07-28 19:11:33,360 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-07-28 19:11:33,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-07-28 19:11:33,370 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 19:11:33,423 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 19:11:33,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 19:11:33,426 INFO L168 Benchmark]: Toolchain (without parser) took 2275.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -87.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:33,427 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:11:33,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.58 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:33,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:33,429 INFO L168 Benchmark]: Boogie Preprocessor took 34.94 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:33,430 INFO L168 Benchmark]: RCFGBuilder took 349.91 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:33,431 INFO L168 Benchmark]: TraceAbstraction took 1349.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 11.5 GB. [2020-07-28 19:11:33,431 INFO L168 Benchmark]: Witness Printer took 76.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 19:11:33,435 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 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.58 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 136.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.94 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 349.91 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1349.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 11.5 GB. * Witness Printer took 76.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 6 SDslu, 102 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 1 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...