./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invariants/odd.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invariants/odd.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 22743d7befdbed7bca04117987d3fb7cfca6c20e ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:10:27,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:10:27,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:10:27,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:10:27,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:10:27,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:10:27,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:10:27,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:10:27,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:10:27,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:10:27,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:10:27,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:10:27,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:10:27,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:10:27,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:10:27,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:10:27,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:10:27,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:10:27,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:10:27,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:10:27,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:10:27,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:10:27,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:10:28,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:10:28,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:10:28,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:10:28,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:10:28,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:10:28,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:10:28,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:10:28,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:10:28,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:10:28,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:10:28,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:10:28,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:10:28,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:10:28,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:10:28,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:10:28,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:10:28,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:10:28,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:10:28,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:10:28,043 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:10:28,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:10:28,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:10:28,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:10:28,046 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:10:28,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:10:28,047 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:10:28,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:10:28,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:10:28,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:10:28,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:10:28,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:10:28,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:10:28,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:10:28,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:10:28,051 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:10:28,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:10:28,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:10:28,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:10:28,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:10:28,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:10:28,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:10:28,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:10:28,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:10:28,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:10:28,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:10:28,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:10:28,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:10:28,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:10:28,055 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 -> 22743d7befdbed7bca04117987d3fb7cfca6c20e [2019-11-28 17:10:28,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:10:28,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:10:28,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:10:28,438 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:10:28,438 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:10:28,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/odd.c [2019-11-28 17:10:28,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe426636/c098a321339b4149b86ab97a9557a798/FLAG1b09dbb94 [2019-11-28 17:10:28,959 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:10:28,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/odd.c [2019-11-28 17:10:28,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe426636/c098a321339b4149b86ab97a9557a798/FLAG1b09dbb94 [2019-11-28 17:10:29,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe426636/c098a321339b4149b86ab97a9557a798 [2019-11-28 17:10:29,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:10:29,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:10:29,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:29,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:10:29,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:10:29,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cf5917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29, skipping insertion in model container [2019-11-28 17:10:29,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:10:29,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:10:29,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:29,534 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:10:29,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:29,558 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:10:29,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29 WrapperNode [2019-11-28 17:10:29,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:29,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:29,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:10:29,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:10:29,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:29,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:10:29,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:10:29,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:10:29,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... [2019-11-28 17:10:29,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:10:29,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:10:29,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:10:29,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:10:29,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:10:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:10:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:10:29,898 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:10:29,898 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 17:10:29,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:29 BoogieIcfgContainer [2019-11-28 17:10:29,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:10:29,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:10:29,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:10:29,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:10:29,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:10:29" (1/3) ... [2019-11-28 17:10:29,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650b0ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:29, skipping insertion in model container [2019-11-28 17:10:29,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:29" (2/3) ... [2019-11-28 17:10:29,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650b0ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:29, skipping insertion in model container [2019-11-28 17:10:29,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:29" (3/3) ... [2019-11-28 17:10:29,911 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c [2019-11-28 17:10:29,921 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:10:29,928 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:10:29,938 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:10:29,966 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:10:29,966 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:10:29,966 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:10:29,966 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:10:29,967 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:10:29,967 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:10:29,967 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:10:29,967 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:10:29,980 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-28 17:10:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 17:10:29,986 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:29,986 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 17:10:29,987 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:29,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:29,993 INFO L82 PathProgramCache]: Analyzing trace with hash 29954948, now seen corresponding path program 1 times [2019-11-28 17:10:30,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:30,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182414656] [2019-11-28 17:10:30,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:30,087 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182414656] [2019-11-28 17:10:30,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:10:30,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 17:10:30,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131426405] [2019-11-28 17:10:30,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 17:10:30,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:30,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 17:10:30,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:10:30,108 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-28 17:10:30,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:30,122 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-11-28 17:10:30,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 17:10:30,124 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-28 17:10:30,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:30,134 INFO L225 Difference]: With dead ends: 19 [2019-11-28 17:10:30,135 INFO L226 Difference]: Without dead ends: 7 [2019-11-28 17:10:30,138 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 17:10:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-28 17:10:30,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-28 17:10:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 17:10:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-28 17:10:30,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-28 17:10:30,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:30,169 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-28 17:10:30,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 17:10:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-28 17:10:30,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 17:10:30,169 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:30,170 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 17:10:30,170 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:30,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:30,170 INFO L82 PathProgramCache]: Analyzing trace with hash 921957070, now seen corresponding path program 1 times [2019-11-28 17:10:30,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:30,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613233530] [2019-11-28 17:10:30,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:32,656 WARN L192 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 87 DAG size of output: 13 [2019-11-28 17:10:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:32,666 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613233530] [2019-11-28 17:10:32,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:10:32,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:10:32,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115447752] [2019-11-28 17:10:32,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:10:32,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:32,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:10:32,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:10:32,670 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-11-28 17:10:32,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:32,697 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-11-28 17:10:32,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 17:10:32,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-11-28 17:10:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:32,698 INFO L225 Difference]: With dead ends: 7 [2019-11-28 17:10:32,698 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:10:32,700 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:10:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:10:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:10:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:10:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:10:32,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-11-28 17:10:32,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:32,702 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:10:32,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:10:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:10:32,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:10:32,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:10:32,721 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:10:32,722 INFO L249 CegarLoopResult]: At program point L15(lines 9 16) the Hoare annotation is: true [2019-11-28 17:10:32,722 INFO L246 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2019-11-28 17:10:32,722 INFO L242 CegarLoopResult]: At program point L11-3(lines 11 13) the Hoare annotation is: (not (= ULTIMATE.start_main_~x~0 (let ((.cse0 (div ULTIMATE.start_main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) ULTIMATE.start_main_~x~0) 4294967296)))))) [2019-11-28 17:10:32,723 INFO L246 CegarLoopResult]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-11-28 17:10:32,723 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 17:10:32,723 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:10:32,723 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:10:32,723 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:10:32,724 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:10:32,725 INFO L249 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-28 17:10:32,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:10:32 BoogieIcfgContainer [2019-11-28 17:10:32,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:10:32,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:10:32,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:10:32,745 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:10:32,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:29" (3/4) ... [2019-11-28 17:10:32,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:10:32,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 17:10:32,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:10:32,806 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:10:32,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:10:32,809 INFO L168 Benchmark]: Toolchain (without parser) took 3466.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -55.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:32,810 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:10:32,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.16 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:32,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -133.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:32,813 INFO L168 Benchmark]: Boogie Preprocessor took 28.24 ms. Allocated memory is still 1.1 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. [2019-11-28 17:10:32,814 INFO L168 Benchmark]: RCFGBuilder took 232.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:32,815 INFO L168 Benchmark]: TraceAbstraction took 2842.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:32,816 INFO L168 Benchmark]: Witness Printer took 63.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:10:32,820 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.16 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 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 79.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -133.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.24 ms. Allocated memory is still 1.1 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. * RCFGBuilder took 232.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2842.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 11.5 GB. * Witness Printer took 63.23 ms. Allocated memory is still 1.1 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: 5]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(x == 2 * (x / 2) + 4294967296 * ((x / 2 * -2 + x) / 4294967296)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 22 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...