./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/floats-cbmc-regression/float-no-simp4.i -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5678568630a4199d94fed33c5301bef19d60be .......................................................................................................................................................................... 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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/floats-cbmc-regression/float-no-simp4.i -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5678568630a4199d94fed33c5301bef19d60be ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:06:03,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:06:03,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:06:03,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:06:03,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:06:03,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:06:03,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:06:03,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:06:03,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:06:03,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:06:03,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:06:03,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:06:03,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:06:03,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:06:03,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:06:03,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:06:03,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:06:03,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:06:03,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:06:03,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:06:03,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:06:03,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:06:03,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:06:03,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:06:03,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:06:03,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:06:03,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:06:03,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:06:03,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:06:03,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:06:03,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:06:03,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:06:03,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:06:03,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:06:03,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:06:03,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:06:03,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:06:03,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:06:03,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:06:03,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:06:03,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:06:03,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:06:03,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:06:03,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:06:03,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:06:03,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:06:03,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:06:03,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:06:03,517 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:06:03,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:06:03,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:06:03,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:06:03,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:06:03,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:06:03,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:06:03,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:06:03,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:06:03,519 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:06:03,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:06:03,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:06:03,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:06:03,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:06:03,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:06:03,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:06:03,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:03,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:06:03,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:06:03,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:06:03,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:06:03,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:06:03,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:06:03,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:06:03,522 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5678568630a4199d94fed33c5301bef19d60be [2021-08-26 00:06:03,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:06:03,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:06:03,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:06:03,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:06:03,791 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:06:03,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-08-26 00:06:03,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c430bc66/3d694ca84ba54124ad43f5da0bc7e9d2/FLAG09dfaf4e6 [2021-08-26 00:06:04,284 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:06:04,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-08-26 00:06:04,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c430bc66/3d694ca84ba54124ad43f5da0bc7e9d2/FLAG09dfaf4e6 [2021-08-26 00:06:04,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c430bc66/3d694ca84ba54124ad43f5da0bc7e9d2 [2021-08-26 00:06:04,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:06:04,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:06:04,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:04,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:06:04,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:06:04,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:04" (1/1) ... [2021-08-26 00:06:04,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56087d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:04, skipping insertion in model container [2021-08-26 00:06:04,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:04" (1/1) ... [2021-08-26 00:06:04,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:06:04,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:06:05,011 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1694) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1415) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1359) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3219) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-26 00:06:05,017 INFO L168 Benchmark]: Toolchain (without parser) took 390.38 ms. Allocated memory is still 71.3 MB. Free memory was 51.3 MB in the beginning and 52.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:05,018 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 51.8 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:05,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.83 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 52.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:05,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 51.8 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.83 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 52.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:06:06,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:06:06,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:06:06,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:06:06,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:06:06,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:06:06,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:06:06,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:06:06,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:06:06,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:06:06,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:06:06,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:06:06,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:06:06,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:06:06,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:06:06,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:06:06,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:06:06,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:06:06,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:06:06,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:06:06,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:06:06,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:06:06,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:06:06,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:06:06,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:06:06,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:06:06,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:06:06,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:06:06,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:06:06,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:06:06,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:06:06,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:06:06,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:06:06,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:06:06,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:06:06,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:06:06,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:06:06,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:06:06,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:06:06,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:06:06,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:06:06,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:06:06,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:06:06,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:06:06,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:06:06,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:06:06,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:06:06,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:06:06,517 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:06:06,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:06:06,518 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:06:06,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:06:06,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:06:06,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:06:06,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:06:06,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:06,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:06:06,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:06:06,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:06:06,540 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5678568630a4199d94fed33c5301bef19d60be [2021-08-26 00:06:06,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:06:06,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:06:06,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:06:06,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:06:06,801 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:06:06,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-08-26 00:06:06,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef80f1a8/3a1f0e22ec0441f89d3c6fd6e218a541/FLAG3c1c4e48e [2021-08-26 00:06:07,246 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:06:07,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-08-26 00:06:07,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef80f1a8/3a1f0e22ec0441f89d3c6fd6e218a541/FLAG3c1c4e48e [2021-08-26 00:06:07,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef80f1a8/3a1f0e22ec0441f89d3c6fd6e218a541 [2021-08-26 00:06:07,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:06:07,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:06:07,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:07,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:06:07,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:06:07,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:07" (1/1) ... [2021-08-26 00:06:07,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61852171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:07, skipping insertion in model container [2021-08-26 00:06:07,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:06:07" (1/1) ... [2021-08-26 00:06:07,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:06:07,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:06:07,972 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2021-08-26 00:06:07,977 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2021-08-26 00:06:07,979 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2021-08-26 00:06:07,983 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2021-08-26 00:06:07,984 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2021-08-26 00:06:07,989 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2021-08-26 00:06:07,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2021-08-26 00:06:07,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2021-08-26 00:06:07,997 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2021-08-26 00:06:07,997 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2021-08-26 00:06:08,006 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2021-08-26 00:06:08,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:06:08,024 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:06:08,048 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2021-08-26 00:06:08,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2021-08-26 00:06:08,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2021-08-26 00:06:08,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2021-08-26 00:06:08,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2021-08-26 00:06:08,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2021-08-26 00:06:08,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2021-08-26 00:06:08,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2021-08-26 00:06:08,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2021-08-26 00:06:08,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2021-08-26 00:06:08,080 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2021-08-26 00:06:08,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:06:08,146 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:06:08,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08 WrapperNode [2021-08-26 00:06:08,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:06:08,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:06:08,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:06:08,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:06:08,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:06:08,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:06:08,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:06:08,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:06:08,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:06:08,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:06:08,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:06:08,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:06:08,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (1/1) ... [2021-08-26 00:06:08,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:06:08,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:06:08,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 00:06:08,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 00:06:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:06:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:06:08,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:06:08,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:06:08,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:06:08,539 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-26 00:06:08,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:08 BoogieIcfgContainer [2021-08-26 00:06:08,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:06:08,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:06:08,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:06:08,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:06:08,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:06:07" (1/3) ... [2021-08-26 00:06:08,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6131c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:06:08, skipping insertion in model container [2021-08-26 00:06:08,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:06:08" (2/3) ... [2021-08-26 00:06:08,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6131c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:06:08, skipping insertion in model container [2021-08-26 00:06:08,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:08" (3/3) ... [2021-08-26 00:06:08,546 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2021-08-26 00:06:08,549 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:06:08,549 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-08-26 00:06:08,595 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:06:08,601 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 00:06:08,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-08-26 00:06:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 46 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:08,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-26 00:06:08,615 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:08,615 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-26 00:06:08,616 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-08-26 00:06:08,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:08,620 INFO L82 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2021-08-26 00:06:08,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:08,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606906102] [2021-08-26 00:06:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:08,635 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:08,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:08,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:08,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 00:06:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:08,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 00:06:08,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:08,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:08,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:08,767 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:08,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606906102] [2021-08-26 00:06:08,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606906102] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:08,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:08,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 00:06:08,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013739631] [2021-08-26 00:06:08,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 00:06:08,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 00:06:08,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 00:06:08,783 INFO L87 Difference]: Start difference. First operand has 47 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 46 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:08,796 INFO L93 Difference]: Finished difference Result 91 states and 120 transitions. [2021-08-26 00:06:08,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 00:06:08,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-26 00:06:08,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:08,802 INFO L225 Difference]: With dead ends: 91 [2021-08-26 00:06:08,802 INFO L226 Difference]: Without dead ends: 44 [2021-08-26 00:06:08,804 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 00:06:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-08-26 00:06:08,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-08-26 00:06:08,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 33 states have (on average 1.303030303030303) internal successors, (43), 43 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2021-08-26 00:06:08,827 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 5 [2021-08-26 00:06:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:08,827 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2021-08-26 00:06:08,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2021-08-26 00:06:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-26 00:06:08,827 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:08,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-26 00:06:08,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-26 00:06:09,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:09,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-08-26 00:06:09,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:09,036 INFO L82 PathProgramCache]: Analyzing trace with hash 28695813, now seen corresponding path program 1 times [2021-08-26 00:06:09,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:09,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505436371] [2021-08-26 00:06:09,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:09,036 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:09,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:09,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:09,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 00:06:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:09,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 00:06:09,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:09,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:09,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:09,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505436371] [2021-08-26 00:06:09,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505436371] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:09,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:09,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 00:06:09,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730026638] [2021-08-26 00:06:09,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:09,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:09,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:09,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:09,569 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:09,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:09,636 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-08-26 00:06:09,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 00:06:09,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-26 00:06:09,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:09,637 INFO L225 Difference]: With dead ends: 44 [2021-08-26 00:06:09,640 INFO L226 Difference]: Without dead ends: 38 [2021-08-26 00:06:09,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-26 00:06:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-26 00:06:09,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-08-26 00:06:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 37 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2021-08-26 00:06:09,645 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 5 [2021-08-26 00:06:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:09,646 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2021-08-26 00:06:09,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2021-08-26 00:06:09,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 00:06:09,647 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:09,647 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:06:09,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:09,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:09,863 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-08-26 00:06:09,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:09,869 INFO L82 PathProgramCache]: Analyzing trace with hash -686348615, now seen corresponding path program 1 times [2021-08-26 00:06:09,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:09,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446877073] [2021-08-26 00:06:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:09,872 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:09,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:09,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:09,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 00:06:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:09,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 00:06:09,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:09,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:10,070 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:10,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446877073] [2021-08-26 00:06:10,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446877073] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:10,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:10,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 00:06:10,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387801196] [2021-08-26 00:06:10,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:10,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:10,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:10,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:10,074 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:10,113 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2021-08-26 00:06:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 00:06:10,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-26 00:06:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:10,115 INFO L225 Difference]: With dead ends: 38 [2021-08-26 00:06:10,115 INFO L226 Difference]: Without dead ends: 34 [2021-08-26 00:06:10,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.7ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-26 00:06:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-26 00:06:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-08-26 00:06:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 33 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2021-08-26 00:06:10,121 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 10 [2021-08-26 00:06:10,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:10,122 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2021-08-26 00:06:10,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2021-08-26 00:06:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-26 00:06:10,123 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:10,123 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:06:10,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:10,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:10,337 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-08-26 00:06:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:10,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1664358106, now seen corresponding path program 1 times [2021-08-26 00:06:10,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:10,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485175968] [2021-08-26 00:06:10,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:10,339 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:10,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:10,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:10,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-26 00:06:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:10,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 00:06:10,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:10,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:10,929 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:10,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485175968] [2021-08-26 00:06:10,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485175968] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:10,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:10,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 00:06:10,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292710413] [2021-08-26 00:06:10,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:10,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:10,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:10,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:10,931 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:10,973 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2021-08-26 00:06:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 00:06:10,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-26 00:06:10,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:10,975 INFO L225 Difference]: With dead ends: 34 [2021-08-26 00:06:10,976 INFO L226 Difference]: Without dead ends: 28 [2021-08-26 00:06:10,976 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.3ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-26 00:06:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-26 00:06:10,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-08-26 00:06:10,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2021-08-26 00:06:10,981 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 14 [2021-08-26 00:06:10,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:10,981 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2021-08-26 00:06:10,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:10,982 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2021-08-26 00:06:10,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 00:06:10,983 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:10,983 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:06:11,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:11,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:11,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-08-26 00:06:11,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:11,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1867176430, now seen corresponding path program 1 times [2021-08-26 00:06:11,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:11,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171486545] [2021-08-26 00:06:11,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:11,194 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:11,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:11,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:11,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-26 00:06:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:11,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 00:06:11,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:11,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:11,450 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:11,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171486545] [2021-08-26 00:06:11,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171486545] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:11,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:11,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 00:06:11,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157965416] [2021-08-26 00:06:11,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:06:11,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:11,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:06:11,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:11,454 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:11,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:11,524 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2021-08-26 00:06:11,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 00:06:11,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-26 00:06:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:11,525 INFO L225 Difference]: With dead ends: 28 [2021-08-26 00:06:11,525 INFO L226 Difference]: Without dead ends: 24 [2021-08-26 00:06:11,525 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.4ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-08-26 00:06:11,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-08-26 00:06:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-08-26 00:06:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0) internal successors, (23), 23 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:11,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2021-08-26 00:06:11,526 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 19 [2021-08-26 00:06:11,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:11,527 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2021-08-26 00:06:11,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2021-08-26 00:06:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 00:06:11,527 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:06:11,527 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:06:11,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:11,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:11,728 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-08-26 00:06:11,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:06:11,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1057859749, now seen corresponding path program 1 times [2021-08-26 00:06:11,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:06:11,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059668846] [2021-08-26 00:06:11,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:06:11,729 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:06:11,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:06:11,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:06:11,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-26 00:06:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:06:11,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-26 00:06:11,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:06:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:11,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:06:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:06:12,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:06:12,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059668846] [2021-08-26 00:06:12,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059668846] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:06:12,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:06:12,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-08-26 00:06:12,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818596384] [2021-08-26 00:06:12,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 00:06:12,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:06:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 00:06:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 00:06:12,071 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:12,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:06:12,126 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-08-26 00:06:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 00:06:12,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-08-26 00:06:12,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:06:12,127 INFO L225 Difference]: With dead ends: 24 [2021-08-26 00:06:12,127 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 00:06:12,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.0ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:06:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 00:06:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 00:06:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 00:06:12,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-08-26 00:06:12,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:06:12,128 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 00:06:12,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:06:12,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 00:06:12,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 00:06:12,130 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,130 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,130 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,131 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:06:12,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-26 00:06:12,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:06:12,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L2-1(line 981) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L2-2(line 988) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L2-3(line 997) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L2-4(line 1004) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 998) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point L3-4(line 3) no Hoare annotation was computed. [2021-08-26 00:06:12,345 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 982) no Hoare annotation was computed. [2021-08-26 00:06:12,348 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point L3-6(line 3) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point L3-8(line 3) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 981) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point L1004(line 1004) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 989) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point L988(line 988) no Hoare annotation was computed. [2021-08-26 00:06:12,349 INFO L857 garLoopResultBuilder]: For program point L988-2(lines 968 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,350 INFO L857 garLoopResultBuilder]: For program point L997(line 997) no Hoare annotation was computed. [2021-08-26 00:06:12,351 INFO L857 garLoopResultBuilder]: For program point L997-2(lines 968 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,351 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 988) no Hoare annotation was computed. [2021-08-26 00:06:12,351 INFO L857 garLoopResultBuilder]: For program point L989(line 989) no Hoare annotation was computed. [2021-08-26 00:06:12,351 INFO L857 garLoopResultBuilder]: For program point L989-2(lines 968 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,352 INFO L857 garLoopResultBuilder]: For program point L981(line 981) no Hoare annotation was computed. [2021-08-26 00:06:12,353 INFO L857 garLoopResultBuilder]: For program point L981-2(lines 968 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,354 INFO L857 garLoopResultBuilder]: For program point L973(line 973) no Hoare annotation was computed. [2021-08-26 00:06:12,355 INFO L857 garLoopResultBuilder]: For program point L973-2(lines 968 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,356 INFO L857 garLoopResultBuilder]: For program point L998(line 998) no Hoare annotation was computed. [2021-08-26 00:06:12,356 INFO L857 garLoopResultBuilder]: For program point L998-2(line 998) no Hoare annotation was computed. [2021-08-26 00:06:12,357 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 00:06:12,357 INFO L857 garLoopResultBuilder]: For program point L990(line 990) no Hoare annotation was computed. [2021-08-26 00:06:12,357 INFO L857 garLoopResultBuilder]: For program point L990-2(line 990) no Hoare annotation was computed. [2021-08-26 00:06:12,358 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2021-08-26 00:06:12,359 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 973) no Hoare annotation was computed. [2021-08-26 00:06:12,359 INFO L857 garLoopResultBuilder]: For program point L982(line 982) no Hoare annotation was computed. [2021-08-26 00:06:12,359 INFO L857 garLoopResultBuilder]: For program point L982-2(line 982) no Hoare annotation was computed. [2021-08-26 00:06:12,359 INFO L857 garLoopResultBuilder]: For program point L974(line 974) no Hoare annotation was computed. [2021-08-26 00:06:12,359 INFO L857 garLoopResultBuilder]: For program point L974-2(lines 968 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point L975(line 975) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point L975-2(line 975) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point L967(lines 967 1005) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2021-08-26 00:06:12,360 INFO L857 garLoopResultBuilder]: For program point L2(line 973) no Hoare annotation was computed. [2021-08-26 00:06:12,363 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:06:12,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:06:12 BoogieIcfgContainer [2021-08-26 00:06:12,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:06:12,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:06:12,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:06:12,370 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:06:12,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:06:08" (3/4) ... [2021-08-26 00:06:12,372 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 00:06:12,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-08-26 00:06:12,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 00:06:12,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:06:12,384 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:06:12,419 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:06:12,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:06:12,421 INFO L168 Benchmark]: Toolchain (without parser) took 4807.86 ms. Allocated memory was 65.0 MB in the beginning and 146.8 MB in the end (delta: 81.8 MB). Free memory was 43.3 MB in the beginning and 112.4 MB in the end (delta: -69.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:12,421 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: 49.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:12,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.93 ms. Allocated memory is still 65.0 MB. Free memory was 43.0 MB in the beginning and 30.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:12,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.28 ms. Allocated memory is still 65.0 MB. Free memory was 30.4 MB in the beginning and 27.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:12,422 INFO L168 Benchmark]: Boogie Preprocessor took 26.40 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 27.5 MB in the beginning and 65.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:12,422 INFO L168 Benchmark]: RCFGBuilder took 328.70 ms. Allocated memory is still 83.9 MB. Free memory was 65.8 MB in the beginning and 47.8 MB in the end (delta: 18.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:12,422 INFO L168 Benchmark]: TraceAbstraction took 3827.63 ms. Allocated memory was 83.9 MB in the beginning and 146.8 MB in the end (delta: 62.9 MB). Free memory was 47.4 MB in the beginning and 116.6 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:06:12,422 INFO L168 Benchmark]: Witness Printer took 49.68 ms. Allocated memory is still 146.8 MB. Free memory was 116.6 MB in the beginning and 112.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:06:12,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 65.0 MB. Free memory was 46.5 MB in the beginning and 46.5 MB in the end (delta: 49.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 533.93 ms. Allocated memory is still 65.0 MB. Free memory was 43.0 MB in the beginning and 30.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.28 ms. Allocated memory is still 65.0 MB. Free memory was 30.4 MB in the beginning and 27.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.40 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 27.5 MB in the beginning and 65.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 328.70 ms. Allocated memory is still 83.9 MB. Free memory was 65.8 MB in the beginning and 47.8 MB in the end (delta: 18.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3827.63 ms. Allocated memory was 83.9 MB in the beginning and 146.8 MB in the end (delta: 62.9 MB). Free memory was 47.4 MB in the beginning and 116.6 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 49.68 ms. Allocated memory is still 146.8 MB. Free memory was 116.6 MB in the beginning and 112.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 973]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 974]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 975]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 981]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 982]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 988]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 989]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 990]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 998]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1004]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 3769.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 8.2ms, AutomataDifference: 321.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.9ms, InitialAbstractionConstructionTime: 7.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 172 SDtfs, 175 SDslu, 132 SDs, 0 SdLazy, 81 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 249.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30.8ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 41.9ms SsaConstructionTime, 118.9ms SatisfiabilityAnalysisTime, 1561.2ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 290 SizeOfPredicates, 13 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-26 00:06:12,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...