./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/simple_3-2.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/loop-acceleration/simple_3-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92de3ce9156ddf83a60df0cbd59fea0aeff14b3b .............................................................................................................................................................................................................................................. 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/loop-acceleration/simple_3-2.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 92de3ce9156ddf83a60df0cbd59fea0aeff14b3b ........................................................................................................................................................................................................................................................................................................................... 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 18:14:28,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:14:29,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:14:29,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:14:29,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:14:29,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:14:29,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:14:29,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:14:29,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:14:29,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:14:29,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:14:29,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:14:29,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:14:29,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:14:29,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:14:29,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:14:29,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:14:29,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:14:29,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:14:29,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:14:29,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:14:29,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:14:29,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:14:29,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:14:29,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:14:29,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:14:29,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:14:29,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:14:29,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:14:29,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:14:29,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:14:29,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:14:29,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:14:29,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:14:29,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:14:29,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:14:29,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:14:29,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:14:29,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:14:29,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:14:29,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:14:29,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:14:29,077 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:14:29,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:14:29,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:14:29,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:14:29,079 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:14:29,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:14:29,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:14:29,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:14:29,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:14:29,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:14:29,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:14:29,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:14:29,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:14:29,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:14:29,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:14:29,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:14:29,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:14:29,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:14:29,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:14:29,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:14:29,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:14:29,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:14:29,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:14:29,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:14:29,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:14:29,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:14:29,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:14:29,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:14:29,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:14:29,087 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 -> 92de3ce9156ddf83a60df0cbd59fea0aeff14b3b [2020-07-28 18:14:29,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:14:29,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:14:29,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:14:29,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:14:29,457 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:14:29,458 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/simple_3-2.c [2020-07-28 18:14:29,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b335dc7/fef9d8e8ec6e4a05aa444b1dbe7b0b2f/FLAGb5358abf1 [2020-07-28 18:14:29,896 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:14:29,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/simple_3-2.c [2020-07-28 18:14:29,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b335dc7/fef9d8e8ec6e4a05aa444b1dbe7b0b2f/FLAGb5358abf1 [2020-07-28 18:14:30,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01b335dc7/fef9d8e8ec6e4a05aa444b1dbe7b0b2f [2020-07-28 18:14:30,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:14:30,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:14:30,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:14:30,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:14:30,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:14:30,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d6ddce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30, skipping insertion in model container [2020-07-28 18:14:30,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:14:30,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:14:30,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:14:30,477 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:14:30,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:14:30,505 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:14:30,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30 WrapperNode [2020-07-28 18:14:30,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:14:30,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:14:30,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:14:30,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:14:30,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:14:30,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:14:30,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:14:30,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:14:30,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (1/1) ... [2020-07-28 18:14:30,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:14:30,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:14:30,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:14:30,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:14:30,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (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 18:14:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:14:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:14:30,952 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:14:30,952 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-28 18:14:30,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:30 BoogieIcfgContainer [2020-07-28 18:14:30,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:14:30,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:14:30,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:14:30,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:14:30,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:14:30" (1/3) ... [2020-07-28 18:14:30,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55f04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:14:30, skipping insertion in model container [2020-07-28 18:14:30,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:30" (2/3) ... [2020-07-28 18:14:30,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f55f04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:14:30, skipping insertion in model container [2020-07-28 18:14:30,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:30" (3/3) ... [2020-07-28 18:14:30,968 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-2.c [2020-07-28 18:14:30,979 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:14:30,988 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:14:31,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:14:31,036 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:14:31,037 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:14:31,037 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:14:31,037 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:14:31,037 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:14:31,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:14:31,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:14:31,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:14:31,058 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 18:14:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 18:14:31,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:14:31,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 18:14:31,070 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:14:31,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:14:31,078 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2020-07-28 18:14:31,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:14:31,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659780918] [2020-07-28 18:14:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:14:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:14:31,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:14:31,296 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 18:14:31,304 INFO L168 Benchmark]: Toolchain (without parser) took 1026.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:14:31,305 INFO L168 Benchmark]: CDTParser took 0.30 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 18:14:31,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.32 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 18:14:31,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:14:31,308 INFO L168 Benchmark]: Boogie Preprocessor took 88.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:31,309 INFO L168 Benchmark]: RCFGBuilder took 322.14 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: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:31,310 INFO L168 Benchmark]: TraceAbstraction took 342.73 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:31,314 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 0.30 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 225.32 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 39.29 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 322.14 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: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 342.73 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: 13.4 MB). Peak memory consumption was 13.4 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 18:14:33,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:14:33,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:14:33,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:14:33,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:14:33,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:14:33,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:14:33,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:14:33,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:14:33,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:14:33,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:14:33,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:14:33,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:14:33,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:14:33,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:14:33,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:14:33,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:14:33,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:14:33,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:14:33,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:14:33,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:14:33,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:14:33,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:14:33,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:14:33,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:14:33,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:14:33,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:14:33,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:14:33,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:14:33,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:14:33,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:14:33,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:14:33,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:14:33,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:14:33,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:14:33,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:14:33,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:14:33,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:14:33,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:14:33,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:14:33,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:14:33,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 18:14:33,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:14:33,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:14:33,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:14:33,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:14:33,319 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:14:33,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:14:33,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:14:33,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:14:33,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:14:33,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:14:33,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:14:33,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:14:33,322 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 18:14:33,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 18:14:33,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:14:33,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:14:33,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:14:33,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:14:33,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:14:33,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:14:33,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:14:33,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:14:33,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:14:33,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:14:33,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:14:33,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:14:33,331 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 18:14:33,331 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 18:14:33,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:14:33,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:14:33,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 18:14:33,332 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 -> 92de3ce9156ddf83a60df0cbd59fea0aeff14b3b [2020-07-28 18:14:33,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:14:33,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:14:33,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:14:33,664 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:14:33,665 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:14:33,666 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/simple_3-2.c [2020-07-28 18:14:33,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/975461875/6eaf89635ea84f75b94d7d386544fe37/FLAG941631630 [2020-07-28 18:14:34,185 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:14:34,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/simple_3-2.c [2020-07-28 18:14:34,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/975461875/6eaf89635ea84f75b94d7d386544fe37/FLAG941631630 [2020-07-28 18:14:34,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/975461875/6eaf89635ea84f75b94d7d386544fe37 [2020-07-28 18:14:34,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:14:34,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:14:34,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:14:34,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:14:34,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:14:34,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356c7a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34, skipping insertion in model container [2020-07-28 18:14:34,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:14:34,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:14:34,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:14:34,797 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:14:34,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:14:34,830 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:14:34,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34 WrapperNode [2020-07-28 18:14:34,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:14:34,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:14:34,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:14:34,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:14:34,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:14:34,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:14:34,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:14:34,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:14:34,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (1/1) ... [2020-07-28 18:14:34,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:14:34,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:14:34,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:14:34,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:14:34,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (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 18:14:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:14:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:14:35,190 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:14:35,190 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-28 18:14:35,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:35 BoogieIcfgContainer [2020-07-28 18:14:35,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:14:35,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:14:35,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:14:35,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:14:35,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:14:34" (1/3) ... [2020-07-28 18:14:35,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b823eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:14:35, skipping insertion in model container [2020-07-28 18:14:35,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:14:34" (2/3) ... [2020-07-28 18:14:35,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b823eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:14:35, skipping insertion in model container [2020-07-28 18:14:35,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:35" (3/3) ... [2020-07-28 18:14:35,204 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-2.c [2020-07-28 18:14:35,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:14:35,229 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:14:35,246 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:14:35,278 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:14:35,279 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:14:35,279 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:14:35,280 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:14:35,280 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:14:35,280 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:14:35,280 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:14:35,281 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:14:35,298 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-28 18:14:35,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 18:14:35,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:14:35,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 18:14:35,306 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:14:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:14:35,313 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2020-07-28 18:14:35,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 18:14:35,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826737634] [2020-07-28 18:14:35,329 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 18:14:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:14:35,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-28 18:14:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:14:35,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:14:35,494 INFO L280 TraceCheckUtils]: 0: Hoare triple {12#true} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~N~0;main_~x~0 := 0bv32;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0; {17#(= (_ bv0 32) ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 18:14:35,496 INFO L280 TraceCheckUtils]: 1: Hoare triple {17#(= (_ bv0 32) ULTIMATE.start_main_~x~0)} assume !~bvult32(main_~x~0, ~zero_extendFrom16To32(main_~N~0)); {17#(= (_ bv0 32) ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 18:14:35,498 INFO L280 TraceCheckUtils]: 2: Hoare triple {17#(= (_ bv0 32) ULTIMATE.start_main_~x~0)} __VERIFIER_assert_#in~cond := (if 0bv32 == ~bvurem32(main_~x~0, 2bv32) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {24#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 18:14:35,502 INFO L280 TraceCheckUtils]: 3: Hoare triple {24#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {13#false} is VALID [2020-07-28 18:14:35,502 INFO L280 TraceCheckUtils]: 4: Hoare triple {13#false} assume !false; {13#false} is VALID [2020-07-28 18:14:35,505 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 18:14:35,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 18:14:35,564 INFO L280 TraceCheckUtils]: 4: Hoare triple {13#false} assume !false; {13#false} is VALID [2020-07-28 18:14:35,568 INFO L280 TraceCheckUtils]: 3: Hoare triple {34#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {13#false} is VALID [2020-07-28 18:14:35,570 INFO L280 TraceCheckUtils]: 2: Hoare triple {38#(= (bvurem ULTIMATE.start_main_~x~0 (_ bv2 32)) (_ bv0 32))} __VERIFIER_assert_#in~cond := (if 0bv32 == ~bvurem32(main_~x~0, 2bv32) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {34#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 18:14:35,572 INFO L280 TraceCheckUtils]: 1: Hoare triple {38#(= (bvurem ULTIMATE.start_main_~x~0 (_ bv2 32)) (_ bv0 32))} assume !~bvult32(main_~x~0, ~zero_extendFrom16To32(main_~N~0)); {38#(= (bvurem ULTIMATE.start_main_~x~0 (_ bv2 32)) (_ bv0 32))} is VALID [2020-07-28 18:14:35,574 INFO L280 TraceCheckUtils]: 0: Hoare triple {12#true} havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~N~0;main_~x~0 := 0bv32;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0; {38#(= (bvurem ULTIMATE.start_main_~x~0 (_ bv2 32)) (_ bv0 32))} is VALID [2020-07-28 18:14:35,575 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 18:14:35,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826737634] [2020-07-28 18:14:35,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:14:35,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-07-28 18:14:35,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687050747] [2020-07-28 18:14:35,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-07-28 18:14:35,586 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:14:35,590 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:14:35,614 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:14:35,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:14:35,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 18:14:35,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:14:35,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:14:35,627 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-07-28 18:14:35,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:14:35,786 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2020-07-28 18:14:35,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 18:14:35,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-07-28 18:14:35,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:14:35,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:14:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2020-07-28 18:14:35,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:14:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2020-07-28 18:14:35,797 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 24 transitions. [2020-07-28 18:14:35,850 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:14:35,858 INFO L225 Difference]: With dead ends: 20 [2020-07-28 18:14:35,858 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 18:14:35,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-28 18:14:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 18:14:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 18:14:35,887 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:14:35,888 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 18:14:35,888 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:14:35,889 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:14:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:14:35,890 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:14:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:14:35,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:14:35,891 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:14:35,891 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:14:35,891 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:14:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:14:35,892 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:14:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:14:35,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:14:35,893 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:14:35,893 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:14:35,893 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:14:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 18:14:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 18:14:35,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-07-28 18:14:35,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:14:35,896 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 18:14:35,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:14:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:14:35,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:14:36,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 18:14:36,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 18:14:36,210 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 18:14:36,211 INFO L264 CegarLoopResult]: At program point L15-2(lines 15 17) the Hoare annotation is: (= (bvurem ULTIMATE.start_main_~x~0 (_ bv2 32)) (_ bv0 32)) [2020-07-28 18:14:36,211 INFO L268 CegarLoopResult]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2020-07-28 18:14:36,211 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-07-28 18:14:36,211 INFO L264 CegarLoopResult]: At program point L5-2(lines 1 20) the Hoare annotation is: (and (= (bvurem ULTIMATE.start_main_~x~0 (_ bv2 32)) (_ bv0 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) [2020-07-28 18:14:36,211 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 18:14:36,212 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 18:14:36,212 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-07-28 18:14:36,212 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-07-28 18:14:36,218 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:14:36,222 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 18:14:36,223 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 18:14:36,229 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 18:14:36,229 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-28 18:14:36,229 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-28 18:14:36,229 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 18:14:36,229 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 18:14:36,230 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:14:36,230 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:14:36,230 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:14:36,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:14:36 BoogieIcfgContainer [2020-07-28 18:14:36,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:14:36,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:14:36,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:14:36,246 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:14:36,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:14:35" (3/4) ... [2020-07-28 18:14:36,251 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 18:14:36,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-07-28 18:14:36,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 18:14:36,327 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:14:36,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:14:36,330 INFO L168 Benchmark]: Toolchain (without parser) took 1743.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -99.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:36,331 INFO L168 Benchmark]: CDTParser took 0.25 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 18:14:36,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:36,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:36,339 INFO L168 Benchmark]: Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:14:36,340 INFO L168 Benchmark]: RCFGBuilder took 255.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:36,341 INFO L168 Benchmark]: TraceAbstraction took 1048.99 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: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:14:36,342 INFO L168 Benchmark]: Witness Printer took 82.55 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 18:14:36,351 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 0.25 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 240.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 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 87.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 255.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1048.99 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: 59.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 11.5 GB. * Witness Printer took 82.55 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ~bvurem32(x, 2bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ~bvurem32(x, 2bv32) == 0bv32 && ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 20 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 3 NumberOfNonLiveVariables, 9 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...