./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9558f99275cc5124f556ee48cb271fffdec36102 ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9558f99275cc5124f556ee48cb271fffdec36102 ...................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:15:51,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:15:51,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:15:51,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:15:51,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:15:51,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:15:51,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:15:51,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:15:51,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:15:51,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:15:51,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:15:51,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:15:51,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:15:51,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:15:51,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:15:51,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:15:51,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:15:51,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:15:51,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:15:51,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:15:51,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:15:51,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:15:51,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:15:51,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:15:51,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:15:51,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:15:51,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:15:51,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:15:51,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:15:51,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:15:51,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:15:51,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:15:51,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:15:51,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:15:51,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:15:51,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:15:51,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:15:51,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:15:51,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:15:51,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:15:51,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:15:51,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:15:51,301 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:15:51,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:15:51,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:15:51,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:15:51,304 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:15:51,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:15:51,305 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:15:51,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:15:51,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:15:51,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:15:51,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:15:51,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:15:51,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:15:51,307 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:15:51,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:15:51,308 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:15:51,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:15:51,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:15:51,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:15:51,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:15:51,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:15:51,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:15:51,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:15:51,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:15:51,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:15:51,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:15:51,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:15:51,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:15:51,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:15:51,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9558f99275cc5124f556ee48cb271fffdec36102 [2020-10-24 14:15:51,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:15:51,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:15:51,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:15:51,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:15:51,816 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:15:51,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float1.c [2020-10-24 14:15:51,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aca6a0ca/ede880c50db44f33b223f1f5808c8816/FLAG66f0e78ff [2020-10-24 14:15:52,674 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:15:52,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float1.c [2020-10-24 14:15:52,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aca6a0ca/ede880c50db44f33b223f1f5808c8816/FLAG66f0e78ff [2020-10-24 14:15:53,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3aca6a0ca/ede880c50db44f33b223f1f5808c8816 [2020-10-24 14:15:53,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:15:53,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:15:53,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:53,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:15:53,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:15:53,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f192cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53, skipping insertion in model container [2020-10-24 14:15:53,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,079 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:15:53,097 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:15:53,335 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:15:53,350 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:15:53,371 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:15:53,392 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:15:53,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53 WrapperNode [2020-10-24 14:15:53,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:53,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:15:53,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:15:53,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:15:53,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:15:53,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:15:53,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:15:53,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:15:53,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... [2020-10-24 14:15:53,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:15:53,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:15:53,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:15:53,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:15:53,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:15:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:15:53,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:15:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:15:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:15:53,761 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:15:53,762 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:15:53,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:15:53 BoogieIcfgContainer [2020-10-24 14:15:53,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:15:53,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:15:53,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:15:53,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:15:53,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:15:53" (1/3) ... [2020-10-24 14:15:53,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59798f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:15:53, skipping insertion in model container [2020-10-24 14:15:53,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53" (2/3) ... [2020-10-24 14:15:53,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59798f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:15:53, skipping insertion in model container [2020-10-24 14:15:53,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:15:53" (3/3) ... [2020-10-24 14:15:53,775 INFO L111 eAbstractionObserver]: Analyzing ICFG float1.c [2020-10-24 14:15:53,790 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:15:53,796 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-24 14:15:53,815 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-24 14:15:53,890 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:15:53,891 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:15:53,891 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:15:53,891 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:15:53,891 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:15:53,892 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:15:53,893 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:15:53,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:15:53,930 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-24 14:15:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:15:53,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:15:53,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:15:53,939 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:15:53,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:15:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 14:15:53,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:15:53,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788190882] [2020-10-24 14:15:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:15:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:15:54,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:15:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:15:54,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:15:54,134 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:15:54,135 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:15:54,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:15:54,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:15:54 BoogieIcfgContainer [2020-10-24 14:15:54,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:15:54,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:15:54,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:15:54,161 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:15:54,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:15:53" (3/4) ... [2020-10-24 14:15:54,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:15:54,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:15:54,170 INFO L168 Benchmark]: Toolchain (without parser) took 1120.45 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 24.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:54,171 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:15:54,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.21 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 35.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:54,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.81 ms. Allocated memory is still 54.5 MB. Free memory was 35.2 MB in the beginning and 33.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:15:54,174 INFO L168 Benchmark]: Boogie Preprocessor took 28.22 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 33.0 MB in the end (delta: 879.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:54,175 INFO L168 Benchmark]: RCFGBuilder took 288.62 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 36.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:54,176 INFO L168 Benchmark]: TraceAbstraction took 393.47 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 25.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:15:54,177 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 54.5 MB. Free memory was 24.8 MB in the beginning and 24.6 MB in the end (delta: 213.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:15:54,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.21 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 35.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.81 ms. Allocated memory is still 54.5 MB. Free memory was 35.2 MB in the beginning and 33.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.22 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 33.0 MB in the end (delta: 879.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 288.62 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 36.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 393.47 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 25.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.06 ms. Allocated memory is still 54.5 MB. Free memory was 24.8 MB in the beginning and 24.6 MB in the end (delta: 213.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 9, overapproximation of to_real at line 8. Possible FailurePath: [L5] double x; [L6] int y; [L8] x=2 [L9] x-=0.6 [L10] y=x [L12] COND TRUE !(y==1) [L3] __assert_fail("0", "float1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 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=14occurred 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, 4 NumberOfCodeBlocks, 4 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 0.2.0-ee8e70e [2020-10-24 14:15:56,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:15:56,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:15:56,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:15:56,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:15:56,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:15:56,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:15:56,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:15:56,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:15:56,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:15:56,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:15:56,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:15:56,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:15:56,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:15:56,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:15:56,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:15:56,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:15:56,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:15:56,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:15:56,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:15:56,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:15:56,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:15:56,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:15:56,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:15:56,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:15:56,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:15:56,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:15:56,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:15:56,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:15:56,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:15:56,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:15:56,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:15:56,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:15:56,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:15:56,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:15:56,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:15:56,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:15:56,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:15:56,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:15:56,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:15:56,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:15:56,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:15:57,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:15:57,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:15:57,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:15:57,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:15:57,053 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:15:57,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:15:57,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:15:57,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:15:57,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:15:57,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:15:57,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:15:57,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:15:57,057 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:15:57,057 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:15:57,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:15:57,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:15:57,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:15:57,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:15:57,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:15:57,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:15:57,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:15:57,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:15:57,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:15:57,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:15:57,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:15:57,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:15:57,060 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:15:57,061 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:15:57,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:15:57,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:15:57,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:15:57,062 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9558f99275cc5124f556ee48cb271fffdec36102 [2020-10-24 14:15:57,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:15:57,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:15:57,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:15:57,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:15:57,519 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:15:57,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float1.c [2020-10-24 14:15:57,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51dec27b9/4d9be69ed2a44c78a90e268ce20177a5/FLAGb35d8eeaa [2020-10-24 14:15:58,294 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:15:58,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float1.c [2020-10-24 14:15:58,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51dec27b9/4d9be69ed2a44c78a90e268ce20177a5/FLAGb35d8eeaa [2020-10-24 14:15:58,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51dec27b9/4d9be69ed2a44c78a90e268ce20177a5 [2020-10-24 14:15:58,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:15:58,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:15:58,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:58,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:15:58,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:15:58,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:58,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6098043f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58, skipping insertion in model container [2020-10-24 14:15:58,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:58,699 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:15:58,717 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:15:58,928 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:15:58,947 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:15:58,964 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:15:58,988 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:15:58,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58 WrapperNode [2020-10-24 14:15:58,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:15:58,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:15:58,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:15:58,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:15:59,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:15:59,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:15:59,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:15:59,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:15:59,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... [2020-10-24 14:15:59,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:15:59,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:15:59,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:15:59,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:15:59,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:15:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:15:59,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:15:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:15:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:15:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:00,046 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:00,047 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:16:00,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:00 BoogieIcfgContainer [2020-10-24 14:16:00,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:00,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:00,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:00,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:00,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:15:58" (1/3) ... [2020-10-24 14:16:00,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a867491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:00, skipping insertion in model container [2020-10-24 14:16:00,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:58" (2/3) ... [2020-10-24 14:16:00,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a867491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:00, skipping insertion in model container [2020-10-24 14:16:00,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:00" (3/3) ... [2020-10-24 14:16:00,075 INFO L111 eAbstractionObserver]: Analyzing ICFG float1.c [2020-10-24 14:16:00,108 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:00,123 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-24 14:16:00,164 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-24 14:16:00,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:00,232 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:00,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:00,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:00,241 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:00,242 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:00,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:00,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:00,259 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-24 14:16:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:16:00,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:00,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:16:00,266 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:00,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:00,273 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 14:16:00,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:00,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559869632] [2020-10-24 14:16:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:16:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:00,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 14:16:00,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:01,240 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-10-24 14:16:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:01,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:01,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:01,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559869632] [2020-10-24 14:16:01,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:01,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:16:01,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143773369] [2020-10-24 14:16:01,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 14:16:01,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:01,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 14:16:01,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 14:16:01,762 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 5 states. [2020-10-24 14:16:03,502 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-10-24 14:16:04,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:04,830 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-10-24 14:16:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:04,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-10-24 14:16:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:04,853 INFO L225 Difference]: With dead ends: 19 [2020-10-24 14:16:04,853 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:16:04,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:16:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:16:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:16:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:16:04,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-24 14:16:04,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:04,893 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:16:04,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 14:16:04,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:16:04,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:16:05,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:16:05,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:16:05,117 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:16:05,118 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 14:16:05,118 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-24 14:16:05,118 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 14:16:05,118 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 14:16:05,118 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-24 14:16:05,118 INFO L274 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-10-24 14:16:05,119 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:16:05,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:16:05,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:16:05,119 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 14:16:05,119 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-24 14:16:05,120 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-24 14:16:05,120 INFO L274 CegarLoopResult]: For program point L4(lines 4 20) no Hoare annotation was computed. [2020-10-24 14:16:05,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:16:05 BoogieIcfgContainer [2020-10-24 14:16:05,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:16:05,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:16:05,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:16:05,128 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:16:05,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:00" (3/4) ... [2020-10-24 14:16:05,132 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:16:05,144 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 14:16:05,144 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:16:05,144 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 14:16:05,145 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:16:05,190 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:16:05,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:16:05,193 INFO L168 Benchmark]: Toolchain (without parser) took 6527.56 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 27.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:05,193 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:05,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.43 ms. Allocated memory is still 48.2 MB. Free memory was 25.1 MB in the beginning and 26.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:05,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.66 ms. Allocated memory is still 48.2 MB. Free memory was 26.4 MB in the beginning and 24.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:05,196 INFO L168 Benchmark]: Boogie Preprocessor took 30.34 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 23.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:05,197 INFO L168 Benchmark]: RCFGBuilder took 986.68 ms. Allocated memory is still 48.2 MB. Free memory was 23.7 MB in the beginning and 23.7 MB in the end (delta: -1.1 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:05,198 INFO L168 Benchmark]: TraceAbstraction took 5073.25 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.3 MB in the beginning and 29.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:05,198 INFO L168 Benchmark]: Witness Printer took 63.19 ms. Allocated memory is still 58.7 MB. Free memory was 29.8 MB in the beginning and 27.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:05,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 317.43 ms. Allocated memory is still 48.2 MB. Free memory was 25.1 MB in the beginning and 26.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.66 ms. Allocated memory is still 48.2 MB. Free memory was 26.4 MB in the beginning and 24.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.34 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 23.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 986.68 ms. Allocated memory is still 48.2 MB. Free memory was 23.7 MB in the beginning and 23.7 MB in the end (delta: -1.1 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5073.25 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.3 MB in the beginning and 29.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Witness Printer took 63.19 ms. Allocated memory is still 58.7 MB. Free memory was 29.8 MB in the beginning and 27.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 204 SizeOfPredicates, 3 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 6 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...