./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:27:25,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:27:25,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:27:25,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:27:25,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:27:25,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:27:25,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:27:25,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:27:25,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:27:25,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:27:25,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:27:25,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:27:25,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:27:25,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:27:25,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:27:25,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:27:25,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:27:25,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:27:25,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:27:25,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:27:25,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:27:25,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:27:25,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:27:25,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:27:25,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:27:25,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:27:25,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:27:25,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:27:25,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:27:25,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:27:25,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:27:25,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:27:25,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:27:25,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:27:25,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:27:25,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:27:25,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:27:25,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:27:25,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:27:25,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:27:25,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:27:25,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:27:25,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:27:25,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:27:25,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:27:25,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:27:25,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:27:25,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:27:25,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:27:25,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:27:25,946 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:27:25,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:27:25,946 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:27:25,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:27:25,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:27:25,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:27:25,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:27:25,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:27:25,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:27:25,948 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:27:25,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:27:25,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:27:25,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:27:25,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:27:25,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:27:25,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:27:25,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:25,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:27:25,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:27:25,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:27:25,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:27:25,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:27:25,950 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:27:25,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:27:25,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:27:25,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 [2022-11-18 20:27:26,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:27:26,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:27:26,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:27:26,250 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:27:26,255 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:27:26,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-18 20:27:26,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/410bc4567/50b415e949d34eabb323cd95e706abb0/FLAG66b2a214c [2022-11-18 20:27:26,929 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:27:26,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-18 20:27:26,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/410bc4567/50b415e949d34eabb323cd95e706abb0/FLAG66b2a214c [2022-11-18 20:27:27,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/410bc4567/50b415e949d34eabb323cd95e706abb0 [2022-11-18 20:27:27,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:27:27,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:27:27,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:27,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:27:27,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:27:27,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:27" (1/1) ... [2022-11-18 20:27:27,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3185ddde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:27, skipping insertion in model container [2022-11-18 20:27:27,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:27" (1/1) ... [2022-11-18 20:27:27,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:27:27,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:27:27,571 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:789) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1873) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$59(StandardFunctionHandler.java:422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:239) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1462) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1668) 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:1086) 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.visit(CHandler.java:1645) 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:1086) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1488) 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:3308) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2387) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) 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) [2022-11-18 20:27:27,577 INFO L158 Benchmark]: Toolchain (without parser) took 310.08ms. Allocated memory is still 127.9MB. Free memory was 95.4MB in the beginning and 102.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:27:27,578 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:27:27,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.54ms. Allocated memory is still 127.9MB. Free memory was 95.4MB in the beginning and 102.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:27:27,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.54ms. Allocated memory is still 127.9MB. Free memory was 95.4MB in the beginning and 102.7MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:789) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:27:29,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:27:29,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:27:29,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:27:29,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:27:29,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:27:29,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:27:29,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:27:29,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:27:29,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:27:29,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:27:29,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:27:29,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:27:29,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:27:29,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:27:29,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:27:29,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:27:29,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:27:29,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:27:29,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:27:29,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:27:29,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:27:29,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:27:29,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:27:29,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:27:29,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:27:29,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:27:29,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:27:29,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:27:29,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:27:29,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:27:29,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:27:29,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:27:29,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:27:29,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:27:29,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:27:29,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:27:29,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:27:29,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:27:29,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:27:29,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:27:29,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 20:27:29,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:27:29,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:27:29,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:27:29,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:27:29,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:27:29,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:27:29,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:27:29,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:27:29,845 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:27:29,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:27:29,846 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:27:29,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:27:29,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:27:29,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:27:29,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:27:29,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:27:29,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:27:29,864 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:27:29,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:27:29,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:27:29,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:27:29,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:27:29,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:27:29,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:27:29,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:27:29,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:27:29,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:29,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:27:29,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:27:29,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:27:29,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:27:29,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:27:29,866 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:27:29,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:27:29,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:27:29,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:27:29,867 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_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c38013984df369dcb527283648f854c769b33d9bd7d0315c5de697ad787e937 [2022-11-18 20:27:30,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:27:30,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:27:30,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:27:30,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:27:30,328 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:27:30,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-18 20:27:30,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/a4e83208c/ad25d4c7430144d1a64364558923b7cf/FLAGfe1a3790a [2022-11-18 20:27:31,021 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:27:31,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c [2022-11-18 20:27:31,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/a4e83208c/ad25d4c7430144d1a64364558923b7cf/FLAGfe1a3790a [2022-11-18 20:27:31,353 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/data/a4e83208c/ad25d4c7430144d1a64364558923b7cf [2022-11-18 20:27:31,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:27:31,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:27:31,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:31,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:27:31,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:27:31,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:31" (1/1) ... [2022-11-18 20:27:31,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535de453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:31, skipping insertion in model container [2022-11-18 20:27:31,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:27:31" (1/1) ... [2022-11-18 20:27:31,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:27:31,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:27:31,876 WARN L234 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_9e0a901f-621c-4912-b493-a5b485aa1954/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c[13947,13960] [2022-11-18 20:27:31,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:27:31,892 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:27:32,006 WARN L234 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_9e0a901f-621c-4912-b493-a5b485aa1954/sv-benchmarks/c/float-newlib/double_req_bl_0873b.c[13947,13960] [2022-11-18 20:27:32,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:27:32,036 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:27:32,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32 WrapperNode [2022-11-18 20:27:32,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:27:32,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:27:32,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:27:32,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:27:32,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,136 INFO L138 Inliner]: procedures = 24, calls = 158, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 730 [2022-11-18 20:27:32,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:27:32,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:27:32,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:27:32,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:27:32,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,221 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:27:32,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:27:32,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:27:32,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:27:32,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (1/1) ... [2022-11-18 20:27:32,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:27:32,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:27:32,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:27:32,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:27:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:27:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-18 20:27:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-11-18 20:27:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-11-18 20:27:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-18 20:27:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:27:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:27:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-18 20:27:32,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 20:27:32,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:27:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:27:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:27:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:27:32,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:27:32,536 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:28:37,324 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:28:37,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:28:37,332 INFO L300 CfgBuilder]: Removed 58 assume(true) statements. [2022-11-18 20:28:37,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:37 BoogieIcfgContainer [2022-11-18 20:28:37,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:28:37,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:28:37,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:28:37,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:28:37,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:27:31" (1/3) ... [2022-11-18 20:28:37,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f92d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:37, skipping insertion in model container [2022-11-18 20:28:37,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:27:32" (2/3) ... [2022-11-18 20:28:37,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f92d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:37, skipping insertion in model container [2022-11-18 20:28:37,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:37" (3/3) ... [2022-11-18 20:28:37,344 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0873b.c [2022-11-18 20:28:37,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:28:37,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:28:37,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:28:37,427 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6945f83c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:28:37,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:28:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 184 states have (on average 1.7228260869565217) internal successors, (317), 185 states have internal predecessors, (317), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:28:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:28:37,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:37,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:37,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash -164857068, now seen corresponding path program 1 times [2022-11-18 20:28:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:28:37,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335126519] [2022-11-18 20:28:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:37,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:37,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:28:37,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:28:37,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:28:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:37,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:28:37,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:37,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:28:37,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:28:37,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335126519] [2022-11-18 20:28:37,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335126519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:37,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:37,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:28:37,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12638906] [2022-11-18 20:28:37,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:37,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:28:37,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:28:37,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:28:37,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:28:37,881 INFO L87 Difference]: Start difference. First operand has 190 states, 184 states have (on average 1.7228260869565217) internal successors, (317), 185 states have internal predecessors, (317), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-18 20:28:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:37,932 INFO L93 Difference]: Finished difference Result 378 states and 647 transitions. [2022-11-18 20:28:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:28:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 [2022-11-18 20:28:37,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:37,945 INFO L225 Difference]: With dead ends: 378 [2022-11-18 20:28:37,948 INFO L226 Difference]: Without dead ends: 187 [2022-11-18 20:28:37,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:28:37,960 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:37,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:28:37,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-18 20:28:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-18 20:28:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.401098901098901) internal successors, (255), 182 states have internal predecessors, (255), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:28:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 261 transitions. [2022-11-18 20:28:38,008 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 261 transitions. Word has length 9 [2022-11-18 20:28:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:38,008 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 261 transitions. [2022-11-18 20:28:38,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-18 20:28:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 261 transitions. [2022-11-18 20:28:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:28:38,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:38,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:38,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-18 20:28:38,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:38,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:38,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1290872087, now seen corresponding path program 1 times [2022-11-18 20:28:38,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:28:38,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071914940] [2022-11-18 20:28:38,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:38,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:38,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:28:38,233 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:28:38,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:28:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:38,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:28:38,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:39,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:28:39,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:28:39,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071914940] [2022-11-18 20:28:39,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071914940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:39,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:39,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:28:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485413146] [2022-11-18 20:28:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:39,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:28:39,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:28:39,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:28:39,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:28:39,811 INFO L87 Difference]: Start difference. First operand 187 states and 261 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2022-11-18 20:28:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:39,855 INFO L93 Difference]: Finished difference Result 191 states and 264 transitions. [2022-11-18 20:28:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:28:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) Word has length 11 [2022-11-18 20:28:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:39,858 INFO L225 Difference]: With dead ends: 191 [2022-11-18 20:28:39,858 INFO L226 Difference]: Without dead ends: 187 [2022-11-18 20:28:39,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:28:39,860 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:39,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 987 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 40 Unchecked, 0.0s Time] [2022-11-18 20:28:39,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-18 20:28:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2022-11-18 20:28:39,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.3956043956043955) internal successors, (254), 182 states have internal predecessors, (254), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:28:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 260 transitions. [2022-11-18 20:28:39,878 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 260 transitions. Word has length 11 [2022-11-18 20:28:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:39,878 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 260 transitions. [2022-11-18 20:28:39,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2022-11-18 20:28:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 260 transitions. [2022-11-18 20:28:39,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:28:39,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:39,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:28:39,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:28:40,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:40,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1358970350, now seen corresponding path program 1 times [2022-11-18 20:28:40,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:28:40,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234871141] [2022-11-18 20:28:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:40,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:28:40,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:28:40,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:28:40,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:28:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:40,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:28:40,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:28:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:28:41,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:28:41,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:28:41,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234871141] [2022-11-18 20:28:41,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234871141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:41,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:41,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:28:41,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400966350] [2022-11-18 20:28:41,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:41,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:28:41,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:28:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:28:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:28:41,514 INFO L87 Difference]: Start difference. First operand 187 states and 260 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2022-11-18 20:28:45,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:47,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:50,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:54,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:57,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:59,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:01,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:03,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:06,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:09,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:11,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:14,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:16,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:19,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:23,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:25,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:27,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:32,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:34,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:36,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:39,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:41,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:43,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:46,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:48,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:50,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:52,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:54,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:56,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:58,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:00,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:02,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:04,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:06,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:08,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:10,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:13,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:15,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:17,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:20,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:22,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:24,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:29,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:32,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:34,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:35,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:37,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:40,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:42,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:44,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:46,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:48,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:51,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:53,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:55,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:57,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:59,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:01,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:03,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:03,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:03,471 INFO L93 Difference]: Finished difference Result 206 states and 282 transitions. [2022-11-18 20:31:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:31:03,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:31:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:03,516 INFO L225 Difference]: With dead ends: 206 [2022-11-18 20:31:03,517 INFO L226 Difference]: Without dead ends: 202 [2022-11-18 20:31:03,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:31:03,518 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 134 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:03,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 765 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 51 Unknown, 0 Unchecked, 141.4s Time] [2022-11-18 20:31:03,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-18 20:31:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 187. [2022-11-18 20:31:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.3846153846153846) internal successors, (252), 182 states have internal predecessors, (252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:31:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 258 transitions. [2022-11-18 20:31:03,536 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 258 transitions. Word has length 13 [2022-11-18 20:31:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:03,537 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 258 transitions. [2022-11-18 20:31:03,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2022-11-18 20:31:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 258 transitions. [2022-11-18 20:31:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:31:03,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:03,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:03,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:03,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:03,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:03,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:03,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1358910768, now seen corresponding path program 1 times [2022-11-18 20:31:03,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:31:03,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625992130] [2022-11-18 20:31:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:03,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:03,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:31:03,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:31:03,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:31:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:04,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 20:31:04,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:04,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:31:04,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-18 20:31:05,811 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:05,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2022-11-18 20:31:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:08,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:08,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:31:08,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625992130] [2022-11-18 20:31:08,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625992130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:08,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:08,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:31:08,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197076555] [2022-11-18 20:31:08,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:08,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:08,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:31:08,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:08,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:08,189 INFO L87 Difference]: Start difference. First operand 187 states and 258 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:08,207 INFO L93 Difference]: Finished difference Result 191 states and 261 transitions. [2022-11-18 20:31:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:08,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:31:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:08,208 INFO L225 Difference]: With dead ends: 191 [2022-11-18 20:31:08,209 INFO L226 Difference]: Without dead ends: 186 [2022-11-18 20:31:08,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:08,213 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 144 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:08,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 144 Unchecked, 0.0s Time] [2022-11-18 20:31:08,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-18 20:31:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-11-18 20:31:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3812154696132597) internal successors, (250), 181 states have internal predecessors, (250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:31:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 256 transitions. [2022-11-18 20:31:08,249 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 256 transitions. Word has length 13 [2022-11-18 20:31:08,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:08,253 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 256 transitions. [2022-11-18 20:31:08,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:08,253 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 256 transitions. [2022-11-18 20:31:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:31:08,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:08,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:08,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:08,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:08,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:08,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:08,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2019999972, now seen corresponding path program 1 times [2022-11-18 20:31:08,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:31:08,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545266005] [2022-11-18 20:31:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:08,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:08,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:31:08,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:31:08,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:31:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:08,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:31:08,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:10,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:10,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:31:10,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545266005] [2022-11-18 20:31:10,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545266005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:10,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:10,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:31:10,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461348174] [2022-11-18 20:31:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:10,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:31:10,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:31:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:31:10,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:31:10,271 INFO L87 Difference]: Start difference. First operand 186 states and 256 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-11-18 20:31:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:10,286 INFO L93 Difference]: Finished difference Result 356 states and 489 transitions. [2022-11-18 20:31:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:31:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:31:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:10,289 INFO L225 Difference]: With dead ends: 356 [2022-11-18 20:31:10,289 INFO L226 Difference]: Without dead ends: 186 [2022-11-18 20:31:10,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:31:10,295 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:10,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 735 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-18 20:31:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-18 20:31:10,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-11-18 20:31:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.3756906077348066) internal successors, (249), 181 states have internal predecessors, (249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:31:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2022-11-18 20:31:10,327 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 17 [2022-11-18 20:31:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:10,328 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2022-11-18 20:31:10,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-11-18 20:31:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2022-11-18 20:31:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:31:10,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:10,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:10,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:10,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:10,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:10,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1652657970, now seen corresponding path program 1 times [2022-11-18 20:31:10,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:31:10,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775406811] [2022-11-18 20:31:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:10,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:10,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:31:10,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:31:10,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 20:31:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:11,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:31:11,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:12,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:12,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:31:12,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775406811] [2022-11-18 20:31:12,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775406811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:12,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:12,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:12,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738230260] [2022-11-18 20:31:12,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:12,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:31:12,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:31:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:31:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:12,822 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-18 20:31:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:12,841 INFO L93 Difference]: Finished difference Result 374 states and 512 transitions. [2022-11-18 20:31:12,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:31:12,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-11-18 20:31:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:12,843 INFO L225 Difference]: With dead ends: 374 [2022-11-18 20:31:12,843 INFO L226 Difference]: Without dead ends: 208 [2022-11-18 20:31:12,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:12,845 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 26 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:12,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 958 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 41 Unchecked, 0.0s Time] [2022-11-18 20:31:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-18 20:31:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2022-11-18 20:31:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.3770491803278688) internal successors, (252), 183 states have internal predecessors, (252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:31:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 258 transitions. [2022-11-18 20:31:12,856 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 258 transitions. Word has length 18 [2022-11-18 20:31:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:12,856 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 258 transitions. [2022-11-18 20:31:12,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-18 20:31:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2022-11-18 20:31:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:31:12,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:12,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:12,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:13,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:13,079 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:13,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1292901854, now seen corresponding path program 1 times [2022-11-18 20:31:13,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:31:13,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775473481] [2022-11-18 20:31:13,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:13,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:13,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:31:13,081 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:31:13,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 20:31:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:31:13,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:16,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:16,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:16,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:31:16,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775473481] [2022-11-18 20:31:16,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775473481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:16,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:16,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:16,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415306770] [2022-11-18 20:31:16,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:16,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:31:16,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:31:16,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:31:16,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:16,014 INFO L87 Difference]: Start difference. First operand 188 states and 258 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-18 20:31:16,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:16,029 INFO L93 Difference]: Finished difference Result 196 states and 264 transitions. [2022-11-18 20:31:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:31:16,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-11-18 20:31:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:16,031 INFO L225 Difference]: With dead ends: 196 [2022-11-18 20:31:16,031 INFO L226 Difference]: Without dead ends: 189 [2022-11-18 20:31:16,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:16,033 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 93 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:16,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 853 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 41 Unchecked, 0.0s Time] [2022-11-18 20:31:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-18 20:31:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2022-11-18 20:31:16,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.3666666666666667) internal successors, (246), 180 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:31:16,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 252 transitions. [2022-11-18 20:31:16,045 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 252 transitions. Word has length 18 [2022-11-18 20:31:16,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:16,045 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 252 transitions. [2022-11-18 20:31:16,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2022-11-18 20:31:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 252 transitions. [2022-11-18 20:31:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:31:16,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:16,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:16,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:16,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:16,259 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:16,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:16,259 INFO L85 PathProgramCache]: Analyzing trace with hash 321846820, now seen corresponding path program 1 times [2022-11-18 20:31:16,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:31:16,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466590046] [2022-11-18 20:31:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:16,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:16,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:31:16,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:31:16,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 20:31:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:16,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:31:16,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:18,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:18,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:31:18,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466590046] [2022-11-18 20:31:18,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466590046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:18,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:18,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7413740] [2022-11-18 20:31:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:18,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:31:18,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:31:18,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:31:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:18,408 INFO L87 Difference]: Start difference. First operand 185 states and 252 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) [2022-11-18 20:31:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:18,420 INFO L93 Difference]: Finished difference Result 306 states and 408 transitions. [2022-11-18 20:31:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:31:18,420 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 19 [2022-11-18 20:31:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:18,422 INFO L225 Difference]: With dead ends: 306 [2022-11-18 20:31:18,422 INFO L226 Difference]: Without dead ends: 133 [2022-11-18 20:31:18,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:31:18,423 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:18,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 633 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-18 20:31:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-18 20:31:18,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-18 20:31:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 128 states have (on average 1.265625) internal successors, (162), 128 states have internal predecessors, (162), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:31:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 168 transitions. [2022-11-18 20:31:18,445 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 168 transitions. Word has length 19 [2022-11-18 20:31:18,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:18,446 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 168 transitions. [2022-11-18 20:31:18,446 INFO L496 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) [2022-11-18 20:31:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 168 transitions. [2022-11-18 20:31:18,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:31:18,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:18,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:18,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:18,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:18,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:18,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash -608439596, now seen corresponding path program 1 times [2022-11-18 20:31:18,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:31:18,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447139119] [2022-11-18 20:31:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:18,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:31:18,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:31:18,669 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:31:18,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 20:31:18,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 139 [2022-11-18 20:31:18,928 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-18 20:31:18,933 INFO L158 Benchmark]: Toolchain (without parser) took 227575.09ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 43.9MB in the beginning and 62.9MB in the end (delta: -19.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-11-18 20:31:18,933 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 79.7MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:31:18,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.92ms. Allocated memory is still 79.7MB. Free memory was 43.7MB in the beginning and 51.4MB in the end (delta: -7.7MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-11-18 20:31:18,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.05ms. Allocated memory is still 79.7MB. Free memory was 51.4MB in the beginning and 47.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:31:18,934 INFO L158 Benchmark]: Boogie Preprocessor took 85.90ms. Allocated memory is still 79.7MB. Free memory was 47.0MB in the beginning and 42.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:31:18,935 INFO L158 Benchmark]: RCFGBuilder took 65103.52ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 42.2MB in the beginning and 54.8MB in the end (delta: -12.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-18 20:31:18,935 INFO L158 Benchmark]: TraceAbstraction took 161595.17ms. Allocated memory is still 98.6MB. Free memory was 54.3MB in the beginning and 62.9MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:31:18,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 79.7MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.92ms. Allocated memory is still 79.7MB. Free memory was 43.7MB in the beginning and 51.4MB in the end (delta: -7.7MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.05ms. Allocated memory is still 79.7MB. Free memory was 51.4MB in the beginning and 47.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.90ms. Allocated memory is still 79.7MB. Free memory was 47.0MB in the beginning and 42.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 65103.52ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 42.2MB in the beginning and 54.8MB in the end (delta: -12.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 161595.17ms. Allocated memory is still 98.6MB. Free memory was 54.3MB in the beginning and 62.9MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 20:31:19,146 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-18 20:31:19,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e0a901f-621c-4912-b493-a5b485aa1954/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10) with exit command (exit)) Received EOF on stdin. No stderr output.