./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:28:06,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:28:06,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:28:06,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:28:06,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:28:06,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:28:06,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:28:06,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:28:06,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:28:06,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:28:06,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:28:06,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:28:06,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:28:06,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:28:06,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:28:06,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:28:06,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:28:06,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:28:06,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:28:06,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:28:06,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:28:06,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:28:06,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:28:06,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:28:06,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:28:06,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:28:06,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:28:06,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:28:06,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:28:06,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:28:06,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:28:06,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:28:06,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:28:06,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:28:06,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:28:06,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:28:06,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:28:06,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:28:06,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:28:06,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:28:06,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:28:06,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:28:06,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:28:06,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:28:06,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:28:06,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:28:06,888 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:28:06,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:28:06,888 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:28:06,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:28:06,889 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:28:06,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:28:06,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:28:06,891 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:28:06,891 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:28:06,891 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:28:06,891 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:28:06,892 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:28:06,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:28:06,893 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:28:06,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:28:06,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:28:06,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:28:06,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:28:06,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:28:06,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:28:06,894 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:28:06,894 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:28:06,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:28:06,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:28:06,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:28:06,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:28:06,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:28:06,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:28:06,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:28:06,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:28:06,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:28:06,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:28:06,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:28:06,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:28:06,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:28:06,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:28:06,900 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 [2021-11-19 14:28:07,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:28:07,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:28:07,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:28:07,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:28:07,230 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:28:07,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-19 14:28:07,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/aeefc9682/8eea0fca933b4abab1e81ac9736fcf0c/FLAG1e43a7b3e [2021-11-19 14:28:07,884 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:28:07,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-19 14:28:07,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/aeefc9682/8eea0fca933b4abab1e81ac9736fcf0c/FLAG1e43a7b3e [2021-11-19 14:28:08,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/aeefc9682/8eea0fca933b4abab1e81ac9736fcf0c [2021-11-19 14:28:08,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:28:08,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:28:08,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:28:08,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:28:08,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:28:08,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:28:08" (1/1) ... [2021-11-19 14:28:08,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331afdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:08, skipping insertion in model container [2021-11-19 14:28:08,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:28:08" (1/1) ... [2021-11-19 14:28:08,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:28:08,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:28:08,948 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:1761) 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:1438) 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:1111) 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:2400) 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:736) 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:2400) 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:2400) 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:1606) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1076) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1460) 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:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2350) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:602) 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) [2021-11-19 14:28:08,954 INFO L158 Benchmark]: Toolchain (without parser) took 770.77ms. Allocated memory is still 127.9MB. Free memory was 93.9MB in the beginning and 103.5MB in the end (delta: -9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:28:08,956 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:28:08,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.08ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 103.5MB in the end (delta: -9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:28:08,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.08ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 103.5MB in the end (delta: -9.9MB). Peak memory consumption was 10.5MB. 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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:28:11,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:28:11,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:28:11,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:28:11,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:28:11,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:28:11,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:28:11,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:28:11,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:28:11,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:28:11,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:28:11,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:28:11,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:28:11,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:28:11,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:28:11,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:28:11,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:28:11,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:28:11,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:28:11,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:28:11,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:28:11,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:28:11,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:28:11,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:28:11,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:28:11,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:28:11,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:28:11,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:28:11,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:28:11,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:28:11,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:28:11,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:28:11,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:28:11,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:28:11,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:28:11,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:28:11,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:28:11,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:28:11,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:28:11,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:28:11,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:28:11,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:28:11,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:28:11,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:28:11,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:28:11,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:28:11,531 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:28:11,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:28:11,532 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:28:11,532 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:28:11,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:28:11,532 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:28:11,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:28:11,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:28:11,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:28:11,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:28:11,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:28:11,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:28:11,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:28:11,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:28:11,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:28:11,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:28:11,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:28:11,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:28:11,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:28:11,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:28:11,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:28:11,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:28:11,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:28:11,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:28:11,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:28:11,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:28:11,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:28:11,539 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:28:11,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:11,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:28:11,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:28:11,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:28:11,540 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 792216dc353b0006df314288fd1231e6db3dfb03c044e860d4e1f501c9a1b147 [2021-11-19 14:28:11,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:28:11,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:28:11,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:28:11,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:28:11,958 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:28:11,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-19 14:28:12,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/d4e3d0f5a/8cdf52e5b7d948da82b9526eef117dea/FLAGd02861611 [2021-11-19 14:28:12,729 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:28:12,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2021-11-19 14:28:12,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/d4e3d0f5a/8cdf52e5b7d948da82b9526eef117dea/FLAGd02861611 [2021-11-19 14:28:12,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/data/d4e3d0f5a/8cdf52e5b7d948da82b9526eef117dea [2021-11-19 14:28:12,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:28:12,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:28:12,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:28:12,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:28:12,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:28:12,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:28:12" (1/1) ... [2021-11-19 14:28:12,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75490293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:12, skipping insertion in model container [2021-11-19 14:28:12,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:28:12" (1/1) ... [2021-11-19 14:28:12,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:28:13,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:28:13,586 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-11-19 14:28:13,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-11-19 14:28:13,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-11-19 14:28:13,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-11-19 14:28:13,597 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-11-19 14:28:13,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-11-19 14:28:13,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-11-19 14:28:13,603 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:28:13,614 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:28:13,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40343,40356] [2021-11-19 14:28:13,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40604,40617] [2021-11-19 14:28:13,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[40865,40878] [2021-11-19 14:28:13,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41126,41139] [2021-11-19 14:28:13,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41387,41400] [2021-11-19 14:28:13,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41463,41476] [2021-11-19 14:28:13,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i[41741,41754] [2021-11-19 14:28:13,662 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:28:13,794 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:28:13,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13 WrapperNode [2021-11-19 14:28:13,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:28:13,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:28:13,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:28:13,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:28:13,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,854 INFO L137 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2021-11-19 14:28:13,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:28:13,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:28:13,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:28:13,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:28:13,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:28:13,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:28:13,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:28:13,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:28:13,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (1/1) ... [2021-11-19 14:28:13,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:28:13,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:28:13,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:28:13,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:28:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:28:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:28:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:28:13,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:28:14,059 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:28:14,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:28:14,248 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:28:14,255 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:28:14,255 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:28:14,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:28:14 BoogieIcfgContainer [2021-11-19 14:28:14,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:28:14,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:28:14,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:28:14,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:28:14,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:28:12" (1/3) ... [2021-11-19 14:28:14,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419af127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:28:14, skipping insertion in model container [2021-11-19 14:28:14,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:28:13" (2/3) ... [2021-11-19 14:28:14,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419af127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:28:14, skipping insertion in model container [2021-11-19 14:28:14,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:28:14" (3/3) ... [2021-11-19 14:28:14,266 INFO L111 eAbstractionObserver]: Analyzing ICFG float_lib2.i [2021-11-19 14:28:14,272 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:28:14,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-19 14:28:14,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:28:14,333 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:28:14,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-19 14:28:14,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 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) [2021-11-19 14:28:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 14:28:14,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:14,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 14:28:14,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-19 14:28:14,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:14,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142230741] [2021-11-19 14:28:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:14,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:14,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:14,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:14,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:28:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:14,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:14,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:14,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:14,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:14,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:14,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142230741] [2021-11-19 14:28:14,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142230741] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:14,850 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:14,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:14,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671537748] [2021-11-19 14:28:14,853 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:14,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:14,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:14,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:14,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:14,896 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.7) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-19 14:28:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:14,973 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2021-11-19 14:28:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:14,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-19 14:28:14,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:14,984 INFO L225 Difference]: With dead ends: 51 [2021-11-19 14:28:14,984 INFO L226 Difference]: Without dead ends: 22 [2021-11-19 14:28:14,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:14,993 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:14,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 33 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-19 14:28:15,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-19 14:28:15,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-19 14:28:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 21 states have internal predecessors, (21), 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) [2021-11-19 14:28:15,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-11-19 14:28:15,037 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 4 [2021-11-19 14:28:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:15,038 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-11-19 14:28:15,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-11-19 14:28:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-11-19 14:28:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-19 14:28:15,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:15,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-19 14:28:15,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:15,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:15,246 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:15,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash 28697799, now seen corresponding path program 1 times [2021-11-19 14:28:15,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:15,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751340929] [2021-11-19 14:28:15,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:15,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:15,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:15,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:15,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:28:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:15,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:15,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:15,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:15,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:15,523 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:15,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751340929] [2021-11-19 14:28:15,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751340929] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:15,524 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:15,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:15,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868918036] [2021-11-19 14:28:15,525 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:15,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:15,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:15,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:15,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:15,528 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:28:15,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:15,546 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-19 14:28:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:15,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-19 14:28:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:15,548 INFO L225 Difference]: With dead ends: 22 [2021-11-19 14:28:15,548 INFO L226 Difference]: Without dead ends: 20 [2021-11-19 14:28:15,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:15,550 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:15,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2021-11-19 14:28:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-19 14:28:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-19 14:28:15,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 19 states have internal predecessors, (19), 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) [2021-11-19 14:28:15,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-11-19 14:28:15,561 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 5 [2021-11-19 14:28:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:15,562 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-11-19 14:28:15,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:28:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-11-19 14:28:15,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 14:28:15,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:15,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 14:28:15,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:15,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:15,778 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:15,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:15,779 INFO L85 PathProgramCache]: Analyzing trace with hash 889635852, now seen corresponding path program 1 times [2021-11-19 14:28:15,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:15,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445535707] [2021-11-19 14:28:15,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:15,781 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:15,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:15,782 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:15,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:28:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:15,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:15,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:15,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:15,989 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:15,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445535707] [2021-11-19 14:28:15,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445535707] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:15,991 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:15,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:15,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197017262] [2021-11-19 14:28:15,992 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:15,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:15,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:15,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:15,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:15,994 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-19 14:28:16,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:16,003 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-11-19 14:28:16,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:28:16,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 14:28:16,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:16,005 INFO L225 Difference]: With dead ends: 20 [2021-11-19 14:28:16,005 INFO L226 Difference]: Without dead ends: 18 [2021-11-19 14:28:16,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:16,009 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:16,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2021-11-19 14:28:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-19 14:28:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-19 14:28:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:28:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-11-19 14:28:16,021 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 6 [2021-11-19 14:28:16,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:16,022 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-11-19 14:28:16,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-19 14:28:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-11-19 14:28:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:28:16,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:16,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:16,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:16,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:16,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1808911727, now seen corresponding path program 1 times [2021-11-19 14:28:16,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:16,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33364598] [2021-11-19 14:28:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:16,248 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:16,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:16,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:16,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:28:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:16,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:16,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:16,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:16,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:16,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33364598] [2021-11-19 14:28:16,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33364598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:16,399 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:16,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:16,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762793654] [2021-11-19 14:28:16,400 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:16,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:16,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:16,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:16,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:16,402 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-11-19 14:28:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:16,412 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-11-19 14:28:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:16,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 14:28:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:16,414 INFO L225 Difference]: With dead ends: 18 [2021-11-19 14:28:16,414 INFO L226 Difference]: Without dead ends: 16 [2021-11-19 14:28:16,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:16,415 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:16,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2021-11-19 14:28:16,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-19 14:28:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-19 14:28:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 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) [2021-11-19 14:28:16,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-19 14:28:16,420 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-11-19 14:28:16,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:16,420 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-19 14:28:16,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-11-19 14:28:16,421 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-19 14:28:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:28:16,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:16,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:16,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:16,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:16,636 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:16,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:16,637 INFO L85 PathProgramCache]: Analyzing trace with hash 241692788, now seen corresponding path program 1 times [2021-11-19 14:28:16,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:16,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875013515] [2021-11-19 14:28:16,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:16,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:16,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:16,641 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:16,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:28:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:16,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:16,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:16,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:16,790 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:16,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875013515] [2021-11-19 14:28:16,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875013515] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:16,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:16,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:16,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773186553] [2021-11-19 14:28:16,791 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:16,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:16,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:16,793 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-11-19 14:28:16,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:16,800 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-19 14:28:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:16,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-19 14:28:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:16,802 INFO L225 Difference]: With dead ends: 16 [2021-11-19 14:28:16,802 INFO L226 Difference]: Without dead ends: 14 [2021-11-19 14:28:16,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:16,803 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:16,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-19 14:28:16,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-19 14:28:16,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-19 14:28:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:28:16,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-19 14:28:16,807 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 8 [2021-11-19 14:28:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:16,807 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-19 14:28:16,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-11-19 14:28:16,808 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-19 14:28:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:28:16,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:16,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:16,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:17,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:17,010 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:17,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:17,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1097454057, now seen corresponding path program 1 times [2021-11-19 14:28:17,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:17,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868313420] [2021-11-19 14:28:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:17,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:17,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:17,012 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:28:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:17,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:17,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:17,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:17,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:17,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:17,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868313420] [2021-11-19 14:28:17,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868313420] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:17,160 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:17,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:17,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266179143] [2021-11-19 14:28:17,161 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:17,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:17,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:17,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:17,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:17,163 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-11-19 14:28:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:17,166 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-19 14:28:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:28:17,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-19 14:28:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:17,168 INFO L225 Difference]: With dead ends: 14 [2021-11-19 14:28:17,168 INFO L226 Difference]: Without dead ends: 12 [2021-11-19 14:28:17,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:17,169 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:17,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2021-11-19 14:28:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-19 14:28:17,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-19 14:28:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 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) [2021-11-19 14:28:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-19 14:28:17,173 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2021-11-19 14:28:17,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:17,173 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-19 14:28:17,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2021-11-19 14:28:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-19 14:28:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:28:17,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:17,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:17,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:17,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:17,391 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-19 14:28:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1908731737, now seen corresponding path program 1 times [2021-11-19 14:28:17,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:17,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751648233] [2021-11-19 14:28:17,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:17,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:17,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:17,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:17,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:28:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:17,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:28:17,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:17,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:28:18,064 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:18,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751648233] [2021-11-19 14:28:18,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751648233] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:18,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:18,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 14:28:18,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011618251] [2021-11-19 14:28:18,068 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:18,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:28:18,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:18,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:28:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:28:18,074 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-11-19 14:28:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:18,080 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-19 14:28:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:18,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 14:28:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:18,083 INFO L225 Difference]: With dead ends: 12 [2021-11-19 14:28:18,083 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:28:18,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:28:18,085 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:18,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2021-11-19 14:28:18,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:28:18,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:28:18,087 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) [2021-11-19 14:28:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:28:18,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-19 14:28:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:18,089 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:28:18,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-11-19 14:28:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:28:18,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:28:18,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2021-11-19 14:28:18,095 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2021-11-19 14:28:18,095 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2021-11-19 14:28:18,095 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2021-11-19 14:28:18,096 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2021-11-19 14:28:18,096 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2021-11-19 14:28:18,096 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2021-11-19 14:28:18,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:18,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:18,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:28:18,312 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2021-11-19 14:28:18,312 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-11-19 14:28:18,312 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2021-11-19 14:28:18,313 INFO L858 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2021-11-19 14:28:18,313 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:28:18,313 INFO L858 garLoopResultBuilder]: For program point L383(line 383) no Hoare annotation was computed. [2021-11-19 14:28:18,313 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2021-11-19 14:28:18,313 INFO L858 garLoopResultBuilder]: For program point L383-1(line 383) no Hoare annotation was computed. [2021-11-19 14:28:18,313 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:28:18,314 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:28:18,314 INFO L858 garLoopResultBuilder]: For program point L383-3(line 383) no Hoare annotation was computed. [2021-11-19 14:28:18,314 INFO L858 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2021-11-19 14:28:18,314 INFO L858 garLoopResultBuilder]: For program point L379-2(lines 374 385) no Hoare annotation was computed. [2021-11-19 14:28:18,314 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 376) no Hoare annotation was computed. [2021-11-19 14:28:18,314 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:28:18,315 INFO L854 garLoopResultBuilder]: At program point L384(lines 373 385) the Hoare annotation is: (not (fp.isNaN |ULTIMATE.start_main_~largestSubnormalFloat~0#1|)) [2021-11-19 14:28:18,315 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-11-19 14:28:18,315 INFO L858 garLoopResultBuilder]: For program point L380-2(lines 374 385) no Hoare annotation was computed. [2021-11-19 14:28:18,315 INFO L858 garLoopResultBuilder]: For program point L376(line 376) no Hoare annotation was computed. [2021-11-19 14:28:18,315 INFO L858 garLoopResultBuilder]: For program point L376-1(line 376) no Hoare annotation was computed. [2021-11-19 14:28:18,316 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2021-11-19 14:28:18,316 INFO L858 garLoopResultBuilder]: For program point L376-3(lines 374 385) no Hoare annotation was computed. [2021-11-19 14:28:18,316 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 383) no Hoare annotation was computed. [2021-11-19 14:28:18,316 INFO L858 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2021-11-19 14:28:18,316 INFO L858 garLoopResultBuilder]: For program point L381-2(line 381) no Hoare annotation was computed. [2021-11-19 14:28:18,317 INFO L858 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2021-11-19 14:28:18,317 INFO L858 garLoopResultBuilder]: For program point L377-2(lines 374 385) no Hoare annotation was computed. [2021-11-19 14:28:18,317 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2021-11-19 14:28:18,320 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:18,322 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:28:18,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:28:18 BoogieIcfgContainer [2021-11-19 14:28:18,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:28:18,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:28:18,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:28:18,341 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:28:18,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:28:14" (3/4) ... [2021-11-19 14:28:18,348 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:28:18,357 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-19 14:28:18,357 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-19 14:28:18,357 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 14:28:18,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:28:18,392 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:28:18,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:28:18,393 INFO L158 Benchmark]: Toolchain (without parser) took 5423.78ms. Allocated memory was 62.9MB in the beginning and 100.7MB in the end (delta: 37.7MB). Free memory was 40.9MB in the beginning and 34.2MB in the end (delta: 6.6MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,394 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:28:18,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 820.83ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 40.6MB in the beginning and 51.7MB in the end (delta: -11.1MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.87ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 49.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,395 INFO L158 Benchmark]: Boogie Preprocessor took 26.62ms. Allocated memory is still 83.9MB. Free memory was 49.3MB in the beginning and 47.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,396 INFO L158 Benchmark]: RCFGBuilder took 374.82ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 64.8MB in the end (delta: -16.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,396 INFO L158 Benchmark]: TraceAbstraction took 4080.63ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 64.3MB in the beginning and 37.2MB in the end (delta: 27.0MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,397 INFO L158 Benchmark]: Witness Printer took 52.19ms. Allocated memory is still 100.7MB. Free memory was 37.2MB in the beginning and 34.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:28:18,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 820.83ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 40.6MB in the beginning and 51.7MB in the end (delta: -11.1MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.87ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 49.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.62ms. Allocated memory is still 83.9MB. Free memory was 49.3MB in the beginning and 47.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 374.82ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 64.8MB in the end (delta: -16.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4080.63ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 64.3MB in the beginning and 37.2MB in the end (delta: 27.0MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Witness Printer took 52.19ms. Allocated memory is still 100.7MB. Free memory was 37.2MB in the beginning and 34.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. 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: 376]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 377]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 379]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 380]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 381]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 383]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 60 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 71 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 28 QuantifiedInterpolants, 293 SizeOfPredicates, 21 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: !~fp.isNaN~LONGDOUBLE(largestSubnormalFloat) RESULT: Ultimate proved your program to be correct! [2021-11-19 14:28:18,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67429c94-e38b-43e7-9b04-d7a05470821b/bin/utaipan-UbGMyvGFUs/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