./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 ff03de63 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 c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:46:16,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:46:16,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:46:16,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:46:16,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:46:16,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:46:16,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:46:16,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:46:16,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:46:16,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:46:16,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:46:16,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:46:16,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:46:16,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:46:16,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:46:16,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:46:16,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:46:16,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:46:16,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:46:16,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:46:16,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:46:16,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:46:16,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:46:16,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:46:16,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:46:16,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:46:16,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:46:16,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:46:16,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:46:16,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:46:16,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:46:16,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:46:16,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:46:16,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:46:16,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:46:16,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:46:16,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:46:16,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:46:16,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:46:16,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:46:16,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:46:16,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:46:16,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:46:16,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:46:16,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:46:16,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:46:16,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:46:16,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:46:16,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:46:16,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:46:16,823 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:46:16,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:46:16,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:46:16,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:46:16,825 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:46:16,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:46:16,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:46:16,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:46:16,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:46:16,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:46:16,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:46:16,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:46:16,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:46:16,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:46:16,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:46:16,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:46:16,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:46:16,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:46:16,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:46:16,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 [2021-12-21 11:46:16,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:46:16,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:46:16,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:46:16,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:46:17,000 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:46:17,001 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-12-21 11:46:17,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d57a48a18/11f4f3f534df4c21be749729c1a62715/FLAG03b1de62f [2021-12-21 11:46:17,399 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:46:17,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-12-21 11:46:17,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d57a48a18/11f4f3f534df4c21be749729c1a62715/FLAG03b1de62f [2021-12-21 11:46:17,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d57a48a18/11f4f3f534df4c21be749729c1a62715 [2021-12-21 11:46:17,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:46:17,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:46:17,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:46:17,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:46:17,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:46:17,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:46:17" (1/1) ... [2021-12-21 11:46:17,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a170fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:17, skipping insertion in model container [2021-12-21 11:46:17,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:46:17" (1/1) ... [2021-12-21 11:46:17,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:46:17,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:46:18,130 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:1792) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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:1107) 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:2392) 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:729) 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:2392) 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:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:674) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1441) 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:1385) 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:1069) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) 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) [2021-12-21 11:46:18,138 INFO L158 Benchmark]: Toolchain (without parser) took 361.22ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 62.6MB in the beginning and 89.7MB in the end (delta: -27.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 11:46:18,139 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:46:18,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.39ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 89.7MB in the end (delta: -27.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 11:46:18,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.39ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 62.4MB in the beginning and 89.7MB in the end (delta: -27.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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 c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:46:19,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:46:19,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:46:19,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:46:19,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:46:19,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:46:19,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:46:19,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:46:19,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:46:19,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:46:19,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:46:19,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:46:19,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:46:19,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:46:19,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:46:19,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:46:19,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:46:19,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:46:19,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:46:19,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:46:19,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:46:19,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:46:19,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:46:19,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:46:19,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:46:19,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:46:19,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:46:19,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:46:19,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:46:19,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:46:19,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:46:19,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:46:19,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:46:19,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:46:19,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:46:19,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:46:19,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:46:19,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:46:19,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:46:19,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:46:19,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:46:19,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:46:19,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:46:19,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:46:19,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:46:19,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:46:19,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:46:19,667 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:46:19,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:46:19,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:46:19,668 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:46:19,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:46:19,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:46:19,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:46:19,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:46:19,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:46:19,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:46:19,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:46:19,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:46:19,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:46:19,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:46:19,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:46:19,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3d8fd51b47ba78ffa0ce38d0a5a9796d128a31f69295c1dd841ff5db63ed4f4 [2021-12-21 11:46:19,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:46:19,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:46:19,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:46:19,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:46:19,948 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:46:19,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-12-21 11:46:20,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e993ee5/44565ff956e34cebac47645ba783aa37/FLAGea10c563a [2021-12-21 11:46:20,515 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:46:20,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-12-21 11:46:20,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e993ee5/44565ff956e34cebac47645ba783aa37/FLAGea10c563a [2021-12-21 11:46:21,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e993ee5/44565ff956e34cebac47645ba783aa37 [2021-12-21 11:46:21,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:46:21,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:46:21,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:46:21,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:46:21,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:46:21,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674893f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21, skipping insertion in model container [2021-12-21 11:46:21,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:46:21,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:46:21,340 WARN L230 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] [2021-12-21 11:46:21,344 WARN L230 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] [2021-12-21 11:46:21,346 WARN L230 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] [2021-12-21 11:46:21,349 WARN L230 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] [2021-12-21 11:46:21,352 WARN L230 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] [2021-12-21 11:46:21,356 WARN L230 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] [2021-12-21 11:46:21,359 WARN L230 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] [2021-12-21 11:46:21,359 WARN L230 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] [2021-12-21 11:46:21,362 WARN L230 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] [2021-12-21 11:46:21,363 WARN L230 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] [2021-12-21 11:46:21,371 WARN L230 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] [2021-12-21 11:46:21,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:46:21,388 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:46:21,404 WARN L230 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] [2021-12-21 11:46:21,405 WARN L230 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] [2021-12-21 11:46:21,406 WARN L230 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] [2021-12-21 11:46:21,407 WARN L230 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] [2021-12-21 11:46:21,408 WARN L230 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] [2021-12-21 11:46:21,409 WARN L230 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] [2021-12-21 11:46:21,410 WARN L230 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] [2021-12-21 11:46:21,410 WARN L230 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] [2021-12-21 11:46:21,411 WARN L230 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] [2021-12-21 11:46:21,412 WARN L230 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] [2021-12-21 11:46:21,418 WARN L230 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] [2021-12-21 11:46:21,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:46:21,497 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:46:21,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21 WrapperNode [2021-12-21 11:46:21,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:46:21,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:46:21,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:46:21,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:46:21,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,532 INFO L137 Inliner]: procedures = 449, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2021-12-21 11:46:21,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:46:21,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:46:21,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:46:21,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:46:21,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:46:21,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:46:21,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:46:21,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:46:21,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (1/1) ... [2021-12-21 11:46:21,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:46:21,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:46:21,575 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) [2021-12-21 11:46:21,583 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 [2021-12-21 11:46:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:46:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:46:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:46:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:46:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 11:46:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 11:46:21,665 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:46:21,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:46:21,779 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:46:21,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:46:21,783 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:46:21,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:46:21 BoogieIcfgContainer [2021-12-21 11:46:21,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:46:21,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:46:21,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:46:21,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:46:21,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:46:21" (1/3) ... [2021-12-21 11:46:21,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b6e6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:46:21, skipping insertion in model container [2021-12-21 11:46:21,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:46:21" (2/3) ... [2021-12-21 11:46:21,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b6e6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:46:21, skipping insertion in model container [2021-12-21 11:46:21,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:46:21" (3/3) ... [2021-12-21 11:46:21,790 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2021-12-21 11:46:21,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:46:21,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-12-21 11:46:21,841 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:46:21,861 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-21 11:46:21,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-12-21 11:46:21,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.696969696969697) internal successors, (56), 44 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-21 11:46:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 11:46:21,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:46:21,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:46:21,881 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)] === [2021-12-21 11:46:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:46:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash 855794161, now seen corresponding path program 1 times [2021-12-21 11:46:21,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:46:21,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551918612] [2021-12-21 11:46:21,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:46:21,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:46:21,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:46:21,896 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) [2021-12-21 11:46:21,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:46:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:46:21,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:46:21,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:46:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:46:21,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:46:21,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:46:21,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551918612] [2021-12-21 11:46:21,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551918612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:46:21,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:46:21,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:46:21,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982674629] [2021-12-21 11:46:21,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:46:21,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:46:21,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:46:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:46:21,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:46:21,998 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.696969696969697) internal successors, (56), 44 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 11:46:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:46:22,012 INFO L93 Difference]: Finished difference Result 99 states and 133 transitions. [2021-12-21 11:46:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:46:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-12-21 11:46:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:46:22,018 INFO L225 Difference]: With dead ends: 99 [2021-12-21 11:46:22,019 INFO L226 Difference]: Without dead ends: 48 [2021-12-21 11:46:22,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:46:22,023 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:46:22,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:46:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-21 11:46:22,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-12-21 11:46:22,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 41 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-21 11:46:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2021-12-21 11:46:22,049 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 9 [2021-12-21 11:46:22,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:46:22,049 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2021-12-21 11:46:22,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 11:46:22,049 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2021-12-21 11:46:22,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 11:46:22,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:46:22,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:46:22,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-21 11:46:22,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:46:22,258 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)] === [2021-12-21 11:46:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:46:22,261 INFO L85 PathProgramCache]: Analyzing trace with hash 857641203, now seen corresponding path program 1 times [2021-12-21 11:46:22,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:46:22,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721891073] [2021-12-21 11:46:22,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:46:22,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:46:22,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:46:22,264 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) [2021-12-21 11:46:22,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 11:46:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:46:22,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 11:46:22,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:46:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:46:23,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:46:23,492 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:46:23,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721891073] [2021-12-21 11:46:23,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721891073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:46:23,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:46:23,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:46:23,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802068130] [2021-12-21 11:46:23,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:46:23,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:46:23,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:46:23,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:46:23,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:46:23,499 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 11:46:23,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:46:23,569 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-12-21 11:46:23,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 11:46:23,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-12-21 11:46:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:46:23,572 INFO L225 Difference]: With dead ends: 48 [2021-12-21 11:46:23,572 INFO L226 Difference]: Without dead ends: 42 [2021-12-21 11:46:23,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:46:23,574 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:46:23,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 102 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:46:23,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-21 11:46:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-21 11:46:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.25) internal successors, (35), 35 states have internal predecessors, (35), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-21 11:46:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-12-21 11:46:23,589 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 9 [2021-12-21 11:46:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:46:23,590 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-12-21 11:46:23,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-21 11:46:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-12-21 11:46:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-21 11:46:23,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:46:23,591 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:46:23,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-21 11:46:23,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:46:23,799 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)] === [2021-12-21 11:46:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:46:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1222120034, now seen corresponding path program 1 times [2021-12-21 11:46:23,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:46:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636952735] [2021-12-21 11:46:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:46:23,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:46:23,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:46:23,812 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) [2021-12-21 11:46:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:46:23,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 11:46:23,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:46:23,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-21 11:46:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 11:46:23,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:46:23,923 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:46:23,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636952735] [2021-12-21 11:46:23,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636952735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:46:23,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:46:23,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:46:23,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111547333] [2021-12-21 11:46:23,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:46:23,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:46:23,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:46:23,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:46:23,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:46:23,925 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 11:46:24,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:46:24,019 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-12-21 11:46:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 11:46:24,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2021-12-21 11:46:24,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:46:24,021 INFO L225 Difference]: With dead ends: 42 [2021-12-21 11:46:24,021 INFO L226 Difference]: Without dead ends: 38 [2021-12-21 11:46:24,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:46:24,022 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 24 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 11:46:24,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 96 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 11:46:24,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-21 11:46:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-12-21 11:46:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 31 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-21 11:46:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2021-12-21 11:46:24,025 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 18 [2021-12-21 11:46:24,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:46:24,028 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2021-12-21 11:46:24,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 11:46:24,029 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2021-12-21 11:46:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 11:46:24,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:46:24,030 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:46:24,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-21 11:46:24,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:46:24,239 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)] === [2021-12-21 11:46:24,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:46:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1704996651, now seen corresponding path program 1 times [2021-12-21 11:46:24,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:46:24,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608951215] [2021-12-21 11:46:24,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:46:24,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:46:24,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:46:24,256 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) [2021-12-21 11:46:24,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-21 11:46:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:46:24,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 11:46:24,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:46:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 11:46:24,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:46:24,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:46:24,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608951215] [2021-12-21 11:46:24,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608951215] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:46:24,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:46:24,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:46:24,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150542706] [2021-12-21 11:46:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:46:24,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:46:24,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:46:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:46:24,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:46:24,425 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 11:46:24,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:46:24,466 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-12-21 11:46:24,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 11:46:24,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-12-21 11:46:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:46:24,468 INFO L225 Difference]: With dead ends: 38 [2021-12-21 11:46:24,468 INFO L226 Difference]: Without dead ends: 32 [2021-12-21 11:46:24,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:46:24,469 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 15 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:46:24,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 78 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:46:24,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-21 11:46:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-12-21 11:46:24,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 25 states have internal predecessors, (25), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-21 11:46:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-12-21 11:46:24,472 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 26 [2021-12-21 11:46:24,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:46:24,472 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-12-21 11:46:24,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 11:46:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-12-21 11:46:24,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-21 11:46:24,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:46:24,474 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:46:24,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-21 11:46:24,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:46:24,682 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)] === [2021-12-21 11:46:24,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:46:24,683 INFO L85 PathProgramCache]: Analyzing trace with hash -826066940, now seen corresponding path program 1 times [2021-12-21 11:46:24,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:46:24,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467939895] [2021-12-21 11:46:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:46:24,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:46:24,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:46:24,700 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) [2021-12-21 11:46:24,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-21 11:46:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:46:24,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 11:46:24,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:46:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 11:46:24,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:46:24,815 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:46:24,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467939895] [2021-12-21 11:46:24,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467939895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:46:24,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:46:24,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:46:24,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606881756] [2021-12-21 11:46:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:46:24,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:46:24,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:46:24,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:46:24,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:46:24,817 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 11:46:24,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:46:24,856 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-12-21 11:46:24,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 11:46:24,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2021-12-21 11:46:24,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:46:24,857 INFO L225 Difference]: With dead ends: 32 [2021-12-21 11:46:24,858 INFO L226 Difference]: Without dead ends: 28 [2021-12-21 11:46:24,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:46:24,858 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 7 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:46:24,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 73 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:46:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-21 11:46:24,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-12-21 11:46:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-21 11:46:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-12-21 11:46:24,862 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 35 [2021-12-21 11:46:24,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:46:24,862 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-12-21 11:46:24,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-21 11:46:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-12-21 11:46:24,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-21 11:46:24,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:46:24,863 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:46:24,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-21 11:46:25,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:46:25,072 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)] === [2021-12-21 11:46:25,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:46:25,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1889668375, now seen corresponding path program 1 times [2021-12-21 11:46:25,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:46:25,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687601870] [2021-12-21 11:46:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:46:25,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:46:25,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:46:25,088 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) [2021-12-21 11:46:25,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-21 11:46:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:46:25,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 11:46:25,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:46:25,216 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-21 11:46:25,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:46:25,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:46:25,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687601870] [2021-12-21 11:46:25,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687601870] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:46:25,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:46:25,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:46:25,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812124986] [2021-12-21 11:46:25,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:46:25,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:46:25,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:46:25,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:46:25,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:46:25,218 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-21 11:46:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:46:25,252 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-12-21 11:46:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 11:46:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2021-12-21 11:46:25,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:46:25,253 INFO L225 Difference]: With dead ends: 28 [2021-12-21 11:46:25,253 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 11:46:25,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 11:46:25,254 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:46:25,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 76 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:46:25,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 11:46:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 11:46:25,255 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) [2021-12-21 11:46:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 11:46:25,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-12-21 11:46:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:46:25,256 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 11:46:25,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-21 11:46:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 11:46:25,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 11:46:25,258 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2021-12-21 11:46:25,258 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 11 remaining) [2021-12-21 11:46:25,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 11 remaining) [2021-12-21 11:46:25,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 11 remaining) [2021-12-21 11:46:25,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 11 remaining) [2021-12-21 11:46:25,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 11 remaining) [2021-12-21 11:46:25,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (4 of 11 remaining) [2021-12-21 11:46:25,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 11 remaining) [2021-12-21 11:46:25,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (2 of 11 remaining) [2021-12-21 11:46:25,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (1 of 11 remaining) [2021-12-21 11:46:25,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 11 remaining) [2021-12-21 11:46:25,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-21 11:46:25,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:46:25,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 11:46:25,500 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 988) no Hoare annotation was computed. [2021-12-21 11:46:25,500 INFO L858 garLoopResultBuilder]: For program point L989(line 989) no Hoare annotation was computed. [2021-12-21 11:46:25,500 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 998) no Hoare annotation was computed. [2021-12-21 11:46:25,500 INFO L858 garLoopResultBuilder]: For program point L989-2(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,500 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L981(line 981) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L981-2(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L973(line 973) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L973-2(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L998(line 998) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L998-2(line 998) no Hoare annotation was computed. [2021-12-21 11:46:25,501 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 982) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point L990(line 990) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point L990-2(line 990) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 973) no Hoare annotation was computed. [2021-12-21 11:46:25,502 INFO L858 garLoopResultBuilder]: For program point L982(line 982) no Hoare annotation was computed. [2021-12-21 11:46:25,503 INFO L858 garLoopResultBuilder]: For program point L982-2(line 982) no Hoare annotation was computed. [2021-12-21 11:46:25,503 INFO L858 garLoopResultBuilder]: For program point L974(line 974) no Hoare annotation was computed. [2021-12-21 11:46:25,503 INFO L858 garLoopResultBuilder]: For program point L974-2(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,503 INFO L854 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (and (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) (fp.isInfinite |ULTIMATE.start_main_~d2~0#1|) (fp.isNaN |ULTIMATE.start_main_~d3~0#1|) (or (fp.isNormal |ULTIMATE.start_main_~d4~0#1|) (fp.isSubnormal |ULTIMATE.start_main_~d4~0#1|) (fp.isZero |ULTIMATE.start_main_~d4~0#1|))) [2021-12-21 11:46:25,503 INFO L858 garLoopResultBuilder]: For program point L1003-1(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,503 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 11:46:25,503 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L854 garLoopResultBuilder]: At program point L987(line 987) the Hoare annotation is: (and (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) (fp.isInfinite |ULTIMATE.start_main_~d2~0#1|)) [2021-12-21 11:46:25,504 INFO L858 garLoopResultBuilder]: For program point L987-1(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 981) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L858 garLoopResultBuilder]: For program point L975(line 975) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L858 garLoopResultBuilder]: For program point L975-2(line 975) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L858 garLoopResultBuilder]: For program point L1004(line 1004) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L858 garLoopResultBuilder]: For program point L967(lines 967 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,504 INFO L854 garLoopResultBuilder]: At program point L996(line 996) the Hoare annotation is: (and (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) (fp.isInfinite |ULTIMATE.start_main_~d2~0#1|) (fp.isNaN |ULTIMATE.start_main_~d3~0#1|)) [2021-12-21 11:46:25,505 INFO L858 garLoopResultBuilder]: For program point L996-1(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,505 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 989) no Hoare annotation was computed. [2021-12-21 11:46:25,505 INFO L858 garLoopResultBuilder]: For program point L988(line 988) no Hoare annotation was computed. [2021-12-21 11:46:25,505 INFO L858 garLoopResultBuilder]: For program point L988-2(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,505 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2021-12-21 11:46:25,505 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2021-12-21 11:46:25,505 INFO L854 garLoopResultBuilder]: At program point L980(line 980) the Hoare annotation is: (fp.isNormal |ULTIMATE.start_main_~d1~0#1|) [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point L980-1(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,506 INFO L861 garLoopResultBuilder]: At program point L972(line 972) the Hoare annotation is: true [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point L972-1(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point L997(line 997) no Hoare annotation was computed. [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point L997-2(lines 968 1005) no Hoare annotation was computed. [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point L3-2(lines 2 4) no Hoare annotation was computed. [2021-12-21 11:46:25,506 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 2 4) the Hoare annotation is: true [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-12-21 11:46:25,506 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 2 4) no Hoare annotation was computed. [2021-12-21 11:46:25,509 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-21 11:46:25,510 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:46:25,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:46:25 BoogieIcfgContainer [2021-12-21 11:46:25,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:46:25,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:46:25,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:46:25,513 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:46:25,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:46:21" (3/4) ... [2021-12-21 11:46:25,515 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 11:46:25,519 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-21 11:46:25,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-21 11:46:25,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 11:46:25,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 11:46:25,522 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 11:46:25,544 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 11:46:25,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:46:25,545 INFO L158 Benchmark]: Toolchain (without parser) took 4508.67ms. Allocated memory was 69.2MB in the beginning and 136.3MB in the end (delta: 67.1MB). Free memory was 47.7MB in the beginning and 85.6MB in the end (delta: -37.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,545 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 50.1MB in the end (delta: 32.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:46:25,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.24ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 36.6MB in the end (delta: 10.8MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.09ms. Allocated memory is still 69.2MB. Free memory was 36.6MB in the beginning and 33.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,546 INFO L158 Benchmark]: Boogie Preprocessor took 17.04ms. Allocated memory is still 69.2MB. Free memory was 33.9MB in the beginning and 32.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,546 INFO L158 Benchmark]: RCFGBuilder took 233.94ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 32.5MB in the beginning and 68.8MB in the end (delta: -36.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,547 INFO L158 Benchmark]: TraceAbstraction took 3725.98ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 68.3MB in the beginning and 90.8MB in the end (delta: -22.5MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,547 INFO L158 Benchmark]: Witness Printer took 32.23ms. Allocated memory is still 136.3MB. Free memory was 89.8MB in the beginning and 85.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 11:46:25,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 50.1MB in the end (delta: 32.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.24ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 36.6MB in the end (delta: 10.8MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.09ms. Allocated memory is still 69.2MB. Free memory was 36.6MB in the beginning and 33.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.04ms. Allocated memory is still 69.2MB. Free memory was 33.9MB in the beginning and 32.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 233.94ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 32.5MB in the beginning and 68.8MB in the end (delta: -36.4MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3725.98ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 68.3MB in the beginning and 90.8MB in the end (delta: -22.5MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Witness Printer took 32.23ms. Allocated memory is still 136.3MB. Free memory was 89.8MB in the beginning and 85.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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 2 procedures, 51 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 479 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 284 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 189 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 195 mSDtfsCounter, 189 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 30 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 8 NumberOfNonLiveVariables, 254 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 80/80 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! [2021-12-21 11:46:25,575 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE