./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/filter2_iterated.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/float-benchs/filter2_iterated.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 e71375352cb0ad247550ffa746935e0806d4b0b5 ......................................................................................................................................................................................................................................................................... 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/float-benchs/filter2_iterated.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 e71375352cb0ad247550ffa746935e0806d4b0b5 ............................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:23:59,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:23:59,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:23:59,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:23:59,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:23:59,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:23:59,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:23:59,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:23:59,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:23:59,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:23:59,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:23:59,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:23:59,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:23:59,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:23:59,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:23:59,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:23:59,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:23:59,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:23:59,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:23:59,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:23:59,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:23:59,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:23:59,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:23:59,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:23:59,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:23:59,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:23:59,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:23:59,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:23:59,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:23:59,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:23:59,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:23:59,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:23:59,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:23:59,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:23:59,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:23:59,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:23:59,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:23:59,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:23:59,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:23:59,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:23:59,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:23:59,947 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:23:59,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:23:59,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:23:59,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:23:59,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:23:59,964 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:23:59,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:23:59,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:23:59,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:23:59,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:23:59,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:23:59,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:23:59,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:23:59,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:23:59,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:23:59,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:23:59,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:23:59,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:23:59,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:23:59,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:23:59,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:23:59,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:23:59,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:23:59,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:23:59,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:23:59,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:23:59,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:23:59,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:23:59,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:23:59,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:23:59,971 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 -> e71375352cb0ad247550ffa746935e0806d4b0b5 [2020-07-28 17:24:00,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:24:00,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:24:00,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:24:00,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:24:00,306 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:24:00,307 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2020-07-28 17:24:00,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77bb33b19/5f26c407a3bd48f2aed255ebf6f581d1/FLAG8e14e6368 [2020-07-28 17:24:00,895 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:24:00,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2020-07-28 17:24:00,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77bb33b19/5f26c407a3bd48f2aed255ebf6f581d1/FLAG8e14e6368 [2020-07-28 17:24:01,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77bb33b19/5f26c407a3bd48f2aed255ebf6f581d1 [2020-07-28 17:24:01,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:24:01,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:24:01,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:24:01,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:24:01,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:24:01,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee2cd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01, skipping insertion in model container [2020-07-28 17:24:01,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:24:01,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:24:01,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:24:01,538 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:24:01,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:24:01,679 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:24:01,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01 WrapperNode [2020-07-28 17:24:01,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:24:01,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:24:01,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:24:01,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:24:01,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:24:01,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:24:01,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:24:01,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:24:01,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... [2020-07-28 17:24:01,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:24:01,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:24:01,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:24:01,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:24:01,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:24:01,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:24:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:24:01,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:24:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:24:01,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-28 17:24:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:24:02,295 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:24:02,296 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-07-28 17:24:02,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:24:02 BoogieIcfgContainer [2020-07-28 17:24:02,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:24:02,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:24:02,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:24:02,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:24:02,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:24:01" (1/3) ... [2020-07-28 17:24:02,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcb6c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:24:02, skipping insertion in model container [2020-07-28 17:24:02,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:01" (2/3) ... [2020-07-28 17:24:02,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcb6c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:24:02, skipping insertion in model container [2020-07-28 17:24:02,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:24:02" (3/3) ... [2020-07-28 17:24:02,310 INFO L109 eAbstractionObserver]: Analyzing ICFG filter2_iterated.c [2020-07-28 17:24:02,319 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:24:02,326 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:24:02,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:24:02,357 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:24:02,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:24:02,358 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:24:02,358 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:24:02,358 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:24:02,358 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:24:02,359 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:24:02,359 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:24:02,376 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-28 17:24:02,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 17:24:02,383 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:24:02,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:24:02,384 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:24:02,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:24:02,389 INFO L82 PathProgramCache]: Analyzing trace with hash 304794067, now seen corresponding path program 1 times [2020-07-28 17:24:02,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:24:02,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915065346] [2020-07-28 17:24:02,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:24:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:24:02,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:24:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:24:02,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:24:02,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:24:02,583 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:24:02,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:24:02,625 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:24:02,625 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:24:02,626 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 17:24:02,626 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 17:24:02,626 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 17:24:02,626 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-28 17:24:02,626 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:24:02,627 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:24:02,627 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:24:02,627 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 17:24:02,627 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 17:24:02,627 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:24:02,628 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:24:02,628 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:24:02,628 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:24:02,628 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:24:02,629 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:24:02,629 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:24:02,629 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:24:02,629 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 17:24:02,629 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 17:24:02,630 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-28 17:24:02,630 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-28 17:24:02,630 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:24:02,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:24:02 BoogieIcfgContainer [2020-07-28 17:24:02,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:24:02,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:24:02,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:24:02,635 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:24:02,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:24:02" (3/4) ... [2020-07-28 17:24:02,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:24:02,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:24:02,643 INFO L168 Benchmark]: Toolchain (without parser) took 1378.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -131.3 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:02,644 INFO L168 Benchmark]: CDTParser took 0.95 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 17:24:02,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:02,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.24 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 17:24:02,647 INFO L168 Benchmark]: Boogie Preprocessor took 40.99 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:02,648 INFO L168 Benchmark]: RCFGBuilder took 522.16 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:02,649 INFO L168 Benchmark]: TraceAbstraction took 332.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:02,650 INFO L168 Benchmark]: Witness Printer took 5.86 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 17:24:02,654 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 0.95 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 413.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.24 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. * Boogie Preprocessor took 40.99 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 522.16 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of to_real at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. Possible FailurePath: [L11] BOOLEAN INIT1, INIT2; [L12] float X, P; [L16] static float E[2], S[2]; [L36] static float E2[2], S2[2]; VAL [E={3:0}, E2={6:0}, INIT1=0, INIT2=0, P=0, S={5:0}, S2={2:0}, X=0] [L56] X = 0 [L57] INIT1 = TRUE [L58] INIT2 = TRUE VAL [E={3:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={2:0}] [L59] COND TRUE \read(TRUE) [L60] X = 0.98*X + 85. VAL [E={3:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={2:0}] [L61] COND FALSE !(X >= -400. && X <= 400.) VAL [E={3:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={2:0}] [L66] COND FALSE !(X >= -800. && X <= 800.) VAL [E={3:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={2:0}] [L7] COND TRUE !(cond) VAL [E={3:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={2:0}] [L7] __VERIFIER_error() VAL [E={3:0}, E2={6:0}, INIT1=1, INIT2=1, P=0, S={5:0}, S2={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:24:04,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:24:04,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:24:04,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:24:04,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:24:04,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:24:04,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:24:04,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:24:04,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:24:04,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:24:04,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:24:04,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:24:04,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:24:04,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:24:04,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:24:04,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:24:04,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:24:04,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:24:04,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:24:04,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:24:04,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:24:04,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:24:04,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:24:04,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:24:04,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:24:04,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:24:04,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:24:04,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:24:04,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:24:04,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:24:04,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:24:04,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:24:04,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:24:04,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:24:04,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:24:04,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:24:04,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:24:04,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:24:04,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:24:04,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:24:04,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:24:04,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:24:04,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:24:04,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:24:04,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:24:04,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:24:04,669 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:24:04,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:24:04,670 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:24:04,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:24:04,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:24:04,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:24:04,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:24:04,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:24:04,672 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:24:04,672 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:24:04,672 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:24:04,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:24:04,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:24:04,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:24:04,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:24:04,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:24:04,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:24:04,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:24:04,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:24:04,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:24:04,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:24:04,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:24:04,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:24:04,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:24:04,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:24:04,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:24:04,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:24:04,677 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 -> e71375352cb0ad247550ffa746935e0806d4b0b5 [2020-07-28 17:24:04,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:24:05,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:24:05,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:24:05,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:24:05,008 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:24:05,009 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2020-07-28 17:24:05,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e59e4d4/5e32acc8609b4a728d16eccdf6425a7f/FLAGaa07abba5 [2020-07-28 17:24:05,550 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:24:05,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2020-07-28 17:24:05,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e59e4d4/5e32acc8609b4a728d16eccdf6425a7f/FLAGaa07abba5 [2020-07-28 17:24:05,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e59e4d4/5e32acc8609b4a728d16eccdf6425a7f [2020-07-28 17:24:05,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:24:05,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:24:05,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:24:05,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:24:05,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:24:05,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:24:05" (1/1) ... [2020-07-28 17:24:05,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edfee5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:05, skipping insertion in model container [2020-07-28 17:24:05,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:24:05" (1/1) ... [2020-07-28 17:24:05,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:24:05,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:24:06,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:24:06,177 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:24:06,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:24:06,320 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:24:06,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06 WrapperNode [2020-07-28 17:24:06,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:24:06,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:24:06,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:24:06,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:24:06,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:24:06,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:24:06,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:24:06,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:24:06,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... [2020-07-28 17:24:06,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:24:06,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:24:06,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:24:06,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:24:06,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:24:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:24:06,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-07-28 17:24:06,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:24:06,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:24:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:24:06,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:24:06,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:24:19,266 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-07-28 17:24:19,268 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.constructTransFormula(Statements2TransFormula.java:214) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.getTransFormula(Statements2TransFormula.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:722) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.access$1(CfgBuilder.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 26 more [2020-07-28 17:24:19,274 INFO L168 Benchmark]: Toolchain (without parser) took 13370.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -119.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:19,275 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:24:19,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:19,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:19,278 INFO L168 Benchmark]: Boogie Preprocessor took 48.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:24:19,279 INFO L168 Benchmark]: RCFGBuilder took 12821.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:24:19,282 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12821.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...