./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.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_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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_26d626a7-a511-4390-8ad4-911d00a7f706/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 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f --- 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 18:29:19,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:29:19,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:29:19,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:29:19,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:29:19,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:29:19,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:29:19,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:29:19,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:29:19,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:29:19,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:29:19,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:29:19,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:29:19,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:29:19,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:29:19,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:29:19,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:29:19,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:29:19,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:29:19,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:29:19,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:29:19,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:29:19,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:29:19,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:29:19,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:29:19,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:29:19,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:29:19,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:29:19,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:29:19,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:29:19,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:29:19,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:29:19,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:29:19,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:29:19,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:29:19,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:29:19,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:29:19,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:29:19,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:29:19,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:29:19,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:29:19,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:29:19,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:29:19,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:29:19,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:29:19,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:29:19,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:29:19,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:29:19,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:29:19,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:29:19,691 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:29:19,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:29:19,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:29:19,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:29:19,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:29:19,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:29:19,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:29:19,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:29:19,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:29:19,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:29:19,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:29:19,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:29:19,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:29:19,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:29:19,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:29:19,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:29:19,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:29:19,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:29:19,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:29:19,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:29:19,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:29:19,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:29:19,700 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:29:19,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:29:19,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:29:19,701 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_26d626a7-a511-4390-8ad4-911d00a7f706/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f [2022-11-18 18:29:20,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:29:20,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:29:20,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:29:20,150 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:29:20,151 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:29:20,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-18 18:29:20,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/d2b7a8be6/d5ab2e8486514c48a0d084a98e7749f1/FLAG9f14d4509 [2022-11-18 18:29:20,793 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:29:20,795 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-18 18:29:20,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/d2b7a8be6/d5ab2e8486514c48a0d084a98e7749f1/FLAG9f14d4509 [2022-11-18 18:29:21,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/d2b7a8be6/d5ab2e8486514c48a0d084a98e7749f1 [2022-11-18 18:29:21,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:29:21,119 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:29:21,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:29:21,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:29:21,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:29:21,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:21" (1/1) ... [2022-11-18 18:29:21,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445b5edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:21, skipping insertion in model container [2022-11-18 18:29:21,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:21" (1/1) ... [2022-11-18 18:29:21,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:29:21,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:29:21,496 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$60(StandardFunctionHandler.java:423) 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 18:29:21,502 INFO L158 Benchmark]: Toolchain (without parser) took 382.03ms. Allocated memory is still 127.9MB. Free memory was 89.3MB in the beginning and 103.1MB in the end (delta: -13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:29:21,503 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 127.9MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:29:21,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.78ms. Allocated memory is still 127.9MB. Free memory was 89.1MB in the beginning and 103.1MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:29:21,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 127.9MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.78ms. Allocated memory is still 127.9MB. Free memory was 89.1MB in the beginning and 103.1MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. 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_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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_26d626a7-a511-4390-8ad4-911d00a7f706/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 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f --- 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 18:29:23,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:29:23,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:29:24,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:29:24,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:29:24,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:29:24,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:29:24,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:29:24,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:29:24,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:29:24,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:29:24,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:29:24,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:29:24,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:29:24,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:29:24,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:29:24,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:29:24,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:29:24,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:29:24,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:29:24,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:29:24,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:29:24,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:29:24,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:29:24,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:29:24,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:29:24,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:29:24,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:29:24,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:29:24,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:29:24,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:29:24,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:29:24,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:29:24,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:29:24,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:29:24,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:29:24,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:29:24,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:29:24,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:29:24,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:29:24,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:29:24,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 18:29:24,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:29:24,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:29:24,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:29:24,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:29:24,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:29:24,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:29:24,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:29:24,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:29:24,204 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:29:24,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:29:24,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:29:24,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:29:24,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:29:24,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:29:24,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:29:24,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:29:24,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:29:24,209 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 18:29:24,209 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 18:29:24,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:29:24,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:29:24,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:29:24,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:29:24,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:29:24,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:29:24,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:29:24,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:29:24,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:29:24,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:29:24,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:29:24,214 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 18:29:24,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 18:29:24,214 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:29:24,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:29:24,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:29:24,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 18:29:24,216 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_26d626a7-a511-4390-8ad4-911d00a7f706/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7efa59a6bd11d9a5dfdc7b4f5743dfbd252f8913e1946c8d686b198d4af2f [2022-11-18 18:29:24,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:29:24,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:29:24,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:29:24,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:29:24,710 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:29:24,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-18 18:29:24,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/f37e21491/1edb37f7c92e452aa937c2f04942e245/FLAGa0004e20b [2022-11-18 18:29:25,455 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:29:25,455 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/sv-benchmarks/c/float-newlib/float_req_bl_0883.c [2022-11-18 18:29:25,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/f37e21491/1edb37f7c92e452aa937c2f04942e245/FLAGa0004e20b [2022-11-18 18:29:25,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/data/f37e21491/1edb37f7c92e452aa937c2f04942e245 [2022-11-18 18:29:25,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:29:25,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:29:25,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:29:25,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:29:25,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:29:25,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:25" (1/1) ... [2022-11-18 18:29:25,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3359c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:25, skipping insertion in model container [2022-11-18 18:29:25,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:25" (1/1) ... [2022-11-18 18:29:25,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:29:25,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:29:26,312 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_26d626a7-a511-4390-8ad4-911d00a7f706/sv-benchmarks/c/float-newlib/float_req_bl_0883.c[14102,14115] [2022-11-18 18:29:26,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:29:26,349 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:29:26,532 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_26d626a7-a511-4390-8ad4-911d00a7f706/sv-benchmarks/c/float-newlib/float_req_bl_0883.c[14102,14115] [2022-11-18 18:29:26,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:29:26,553 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:29:26,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26 WrapperNode [2022-11-18 18:29:26,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:29:26,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:29:26,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:29:26,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:29:26,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,695 INFO L138 Inliner]: procedures = 26, calls = 192, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 742 [2022-11-18 18:29:26,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:29:26,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:29:26,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:29:26,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:29:26,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:29:26,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:29:26,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:29:26,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:29:26,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (1/1) ... [2022-11-18 18:29:26,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:29:26,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:29:26,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:29:26,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:29:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:29:26,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 18:29:26,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:29:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-18 18:29:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 18:29:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-18 18:29:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-11-18 18:29:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-11-18 18:29:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-18 18:29:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:29:26,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:29:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 18:29:26,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:29:27,162 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:29:27,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:29:57,659 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:29:57,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:29:57,673 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-18 18:29:57,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:57 BoogieIcfgContainer [2022-11-18 18:29:57,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:29:57,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:29:57,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:29:57,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:29:57,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:29:25" (1/3) ... [2022-11-18 18:29:57,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d899e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:29:57, skipping insertion in model container [2022-11-18 18:29:57,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:26" (2/3) ... [2022-11-18 18:29:57,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d899e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:29:57, skipping insertion in model container [2022-11-18 18:29:57,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:57" (3/3) ... [2022-11-18 18:29:57,699 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0883.c [2022-11-18 18:29:57,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:29:57,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:29:57,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:29:57,805 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;@21205fb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:29:57,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:29:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 181 states have (on average 1.729281767955801) internal successors, (313), 182 states have internal predecessors, (313), 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 18:29:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 18:29:57,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:29:57,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:57,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:29:57,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash -218926045, now seen corresponding path program 1 times [2022-11-18 18:29:57,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:29:57,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997016132] [2022-11-18 18:29:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:57,842 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 18:29:57,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:29:57,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:29:57,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:29:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:29:59,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 18:29:59,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:29:59,102 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 18:29:59,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:29:59,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:29:59,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997016132] [2022-11-18 18:29:59,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997016132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:29:59,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:29:59,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:29:59,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059094059] [2022-11-18 18:29:59,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:29:59,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:29:59,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:29:59,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:29:59,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:29:59,151 INFO L87 Difference]: Start difference. First operand has 187 states, 181 states have (on average 1.729281767955801) internal successors, (313), 182 states have internal predecessors, (313), 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 6.5) internal successors, (13), 2 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 18:29:59,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:29:59,220 INFO L93 Difference]: Finished difference Result 371 states and 637 transitions. [2022-11-18 18:29:59,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:29:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 18:29:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:29:59,234 INFO L225 Difference]: With dead ends: 371 [2022-11-18 18:29:59,235 INFO L226 Difference]: Without dead ends: 183 [2022-11-18 18:29:59,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 18:29:59,243 INFO L413 NwaCegarLoop]: 246 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, 246 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 18:29:59,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 18:29:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-18 18:29:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-18 18:29:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3202247191011236) internal successors, (235), 178 states have internal predecessors, (235), 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 18:29:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2022-11-18 18:29:59,300 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 241 transitions. Word has length 13 [2022-11-18 18:29:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:29:59,301 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-11-18 18:29:59,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 18:29:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 241 transitions. [2022-11-18 18:29:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 18:29:59,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:29:59,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:29:59,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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)] Forceful destruction successful, exit code 0 [2022-11-18 18:29:59,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:29:59,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:29:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:29:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1136669304, now seen corresponding path program 1 times [2022-11-18 18:29:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:29:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736639143] [2022-11-18 18:29:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:29:59,524 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 18:29:59,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:29:59,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:29:59,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:30:00,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:30:00,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:30:01,308 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 18:30:01,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:30:01,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:30:01,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736639143] [2022-11-18 18:30:01,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736639143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:30:01,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:30:01,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:30:01,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377315532] [2022-11-18 18:30:01,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:30:01,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:30:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:30:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:30:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:30:01,314 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:30:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:30:01,355 INFO L93 Difference]: Finished difference Result 191 states and 248 transitions. [2022-11-18 18:30:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:30:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 18:30:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:30:01,358 INFO L225 Difference]: With dead ends: 191 [2022-11-18 18:30:01,358 INFO L226 Difference]: Without dead ends: 183 [2022-11-18 18:30:01,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:30:01,360 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:30:01,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 912 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 35 Unchecked, 0.0s Time] [2022-11-18 18:30:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-18 18:30:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-18 18:30:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3146067415730338) internal successors, (234), 178 states have internal predecessors, (234), 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 18:30:01,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 240 transitions. [2022-11-18 18:30:01,378 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 240 transitions. Word has length 16 [2022-11-18 18:30:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:30:01,378 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 240 transitions. [2022-11-18 18:30:01,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:30:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 240 transitions. [2022-11-18 18:30:01,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 18:30:01,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:30:01,380 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 18:30:01,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:01,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:01,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:30:01,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:30:01,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1680361837, now seen corresponding path program 1 times [2022-11-18 18:30:01,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:30:01,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142462226] [2022-11-18 18:30:01,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:30:01,607 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 18:30:01,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:30:01,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:01,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:30:02,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 18:30:02,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:30:03,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 18:30:03,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-11-18 18:30:04,108 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 18:30:04,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:30:04,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:30:04,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142462226] [2022-11-18 18:30:04,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142462226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:30:04,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:30:04,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:30:04,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791068778] [2022-11-18 18:30:04,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:30:04,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:30:04,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:30:04,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:30:04,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:30:04,119 INFO L87 Difference]: Start difference. First operand 183 states and 240 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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 18:30:06,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:09,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:11,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:14,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:16,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:20,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:22,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:24,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:26,700 WARN L539 Checker$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 18:30:28,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:30,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:32,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:34,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:36,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:39,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:30:42,614 INFO L93 Difference]: Finished difference Result 191 states and 247 transitions. [2022-11-18 18:30:42,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:30:42,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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 18:30:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:30:42,628 INFO L225 Difference]: With dead ends: 191 [2022-11-18 18:30:42,628 INFO L226 Difference]: Without dead ends: 182 [2022-11-18 18:30:42,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:30:42,630 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:30:42,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1231 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 9 Unknown, 122 Unchecked, 38.3s Time] [2022-11-18 18:30:42,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-18 18:30:42,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-18 18:30:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.305084745762712) internal successors, (231), 177 states have internal predecessors, (231), 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 18:30:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 237 transitions. [2022-11-18 18:30:42,666 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 237 transitions. Word has length 18 [2022-11-18 18:30:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:30:42,667 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 237 transitions. [2022-11-18 18:30:42,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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 18:30:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 237 transitions. [2022-11-18 18:30:42,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 18:30:42,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:30:42,669 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] [2022-11-18 18:30:42,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:42,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:30:42,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:30:42,873 INFO L85 PathProgramCache]: Analyzing trace with hash -971295235, now seen corresponding path program 1 times [2022-11-18 18:30:42,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:30:42,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1372271062] [2022-11-18 18:30:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:30:42,875 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 18:30:42,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:30:42,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:42,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:30:44,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:30:44,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:30:44,881 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 18:30:44,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:30:44,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:30:44,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1372271062] [2022-11-18 18:30:44,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1372271062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:30:44,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:30:44,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:30:44,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213398026] [2022-11-18 18:30:44,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:30:44,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:30:44,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:30:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:30:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:30:44,885 INFO L87 Difference]: Start difference. First operand 182 states and 237 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 18:30:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:30:44,907 INFO L93 Difference]: Finished difference Result 198 states and 251 transitions. [2022-11-18 18:30:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:30:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2022-11-18 18:30:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:30:44,912 INFO L225 Difference]: With dead ends: 198 [2022-11-18 18:30:44,917 INFO L226 Difference]: Without dead ends: 190 [2022-11-18 18:30:44,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:30:44,923 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 67 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:30:44,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1047 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2022-11-18 18:30:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-18 18:30:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 182. [2022-11-18 18:30:44,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.2994350282485876) internal successors, (230), 177 states have internal predecessors, (230), 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 18:30:44,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 236 transitions. [2022-11-18 18:30:44,959 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 236 transitions. Word has length 20 [2022-11-18 18:30:44,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:30:44,964 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 236 transitions. [2022-11-18 18:30:44,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 18:30:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 236 transitions. [2022-11-18 18:30:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 18:30:44,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:30:44,966 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] [2022-11-18 18:30:45,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:45,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:45,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:30:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:30:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1276009850, now seen corresponding path program 1 times [2022-11-18 18:30:45,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:30:45,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268735979] [2022-11-18 18:30:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:30:45,190 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 18:30:45,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:30:45,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:45,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:30:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:30:46,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 18:30:46,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:30:47,905 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 18:30:47,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:30:47,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:30:47,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268735979] [2022-11-18 18:30:47,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268735979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:30:47,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:30:47,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:30:47,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52183651] [2022-11-18 18:30:47,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:30:47,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:30:47,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:30:47,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:30:47,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:30:47,910 INFO L87 Difference]: Start difference. First operand 182 states and 236 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:30:51,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:54,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:57,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:30:59,539 WARN L539 Checker$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 18:31:01,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:03,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:04,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:06,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:09,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:12,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:16,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:18,158 WARN L539 Checker$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 18:31:20,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:22,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:24,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:26,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:28,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:30,680 WARN L539 Checker$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 18:31:32,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:34,806 WARN L539 Checker$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 18:31:37,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:39,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:40,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:43,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:45,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:47,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:49,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:51,756 WARN L539 Checker$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 18:31:53,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:56,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:31:59,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:01,469 WARN L539 Checker$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 18:32:03,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:06,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:08,089 INFO L93 Difference]: Finished difference Result 198 states and 250 transitions. [2022-11-18 18:32:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:32:08,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 18:32:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:08,102 INFO L225 Difference]: With dead ends: 198 [2022-11-18 18:32:08,102 INFO L226 Difference]: Without dead ends: 190 [2022-11-18 18:32:08,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:32:08,104 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 229 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:08,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1589 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 23 Unknown, 0 Unchecked, 78.9s Time] [2022-11-18 18:32:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-18 18:32:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 182. [2022-11-18 18:32:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.2881355932203389) internal successors, (228), 177 states have internal predecessors, (228), 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 18:32:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 234 transitions. [2022-11-18 18:32:08,120 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 234 transitions. Word has length 21 [2022-11-18 18:32:08,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:08,120 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 234 transitions. [2022-11-18 18:32:08,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 234 transitions. [2022-11-18 18:32:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 18:32:08,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:08,122 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] [2022-11-18 18:32:08,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:08,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:08,337 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:08,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:08,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1728518746, now seen corresponding path program 1 times [2022-11-18 18:32:08,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:32:08,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498967029] [2022-11-18 18:32:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:08,339 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 18:32:08,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:32:08,340 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:08,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:09,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:32:09,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:32:10,171 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 18:32:10,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:32:10,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:32:10,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498967029] [2022-11-18 18:32:10,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498967029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:10,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:10,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:32:10,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110911318] [2022-11-18 18:32:10,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:10,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:32:10,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:32:10,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:32:10,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:32:10,174 INFO L87 Difference]: Start difference. First operand 182 states and 234 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:10,185 INFO L93 Difference]: Finished difference Result 190 states and 241 transitions. [2022-11-18 18:32:10,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:32:10,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 18:32:10,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:10,189 INFO L225 Difference]: With dead ends: 190 [2022-11-18 18:32:10,190 INFO L226 Difference]: Without dead ends: 181 [2022-11-18 18:32:10,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:32:10,195 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 10 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:10,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 656 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2022-11-18 18:32:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-18 18:32:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-11-18 18:32:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.2840909090909092) internal successors, (226), 176 states have internal predecessors, (226), 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 18:32:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 232 transitions. [2022-11-18 18:32:10,228 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 232 transitions. Word has length 21 [2022-11-18 18:32:10,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:10,229 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 232 transitions. [2022-11-18 18:32:10,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 232 transitions. [2022-11-18 18:32:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 18:32:10,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:10,237 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] [2022-11-18 18:32:10,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:10,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:10,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:10,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash 438154790, now seen corresponding path program 1 times [2022-11-18 18:32:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:32:10,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605512562] [2022-11-18 18:32:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:10,446 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 18:32:10,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:32:10,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:10,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:11,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 18:32:11,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:32:11,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 18:32:13,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 32 [2022-11-18 18:32:14,280 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 18:32:14,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:32:14,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:32:14,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605512562] [2022-11-18 18:32:14,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605512562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:14,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:14,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:32:14,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076029797] [2022-11-18 18:32:14,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:14,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:32:14,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:32:14,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:32:14,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:32:14,283 INFO L87 Difference]: Start difference. First operand 181 states and 232 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:14,498 INFO L93 Difference]: Finished difference Result 192 states and 244 transitions. [2022-11-18 18:32:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:32:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 18:32:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:14,501 INFO L225 Difference]: With dead ends: 192 [2022-11-18 18:32:14,501 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 18:32:14,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:32:14,502 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 8 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:14,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1437 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 112 Unchecked, 0.1s Time] [2022-11-18 18:32:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 18:32:14,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-18 18:32:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.2849162011173185) internal successors, (230), 179 states have internal predecessors, (230), 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 18:32:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 236 transitions. [2022-11-18 18:32:14,512 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 236 transitions. Word has length 21 [2022-11-18 18:32:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:14,513 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 236 transitions. [2022-11-18 18:32:14,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 236 transitions. [2022-11-18 18:32:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 18:32:14,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:14,514 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] [2022-11-18 18:32:14,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:14,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:14,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:14,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:14,738 INFO L85 PathProgramCache]: Analyzing trace with hash -371191836, now seen corresponding path program 1 times [2022-11-18 18:32:14,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:32:14,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039059701] [2022-11-18 18:32:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:14,738 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 18:32:14,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:32:14,739 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:14,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:15,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 18:32:15,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:32:16,579 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 18:32:16,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:32:16,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:32:16,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039059701] [2022-11-18 18:32:16,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039059701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:16,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:16,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:32:16,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582739399] [2022-11-18 18:32:16,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:16,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:32:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:32:16,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:32:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:32:16,582 INFO L87 Difference]: Start difference. First operand 184 states and 236 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:16,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:16,596 INFO L93 Difference]: Finished difference Result 200 states and 250 transitions. [2022-11-18 18:32:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:32:16,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-18 18:32:16,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:16,598 INFO L225 Difference]: With dead ends: 200 [2022-11-18 18:32:16,599 INFO L226 Difference]: Without dead ends: 190 [2022-11-18 18:32:16,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:32:16,600 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 63 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:16,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1054 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2022-11-18 18:32:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-18 18:32:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 182. [2022-11-18 18:32:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.2768361581920904) internal successors, (226), 177 states have internal predecessors, (226), 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 18:32:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 232 transitions. [2022-11-18 18:32:16,611 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 232 transitions. Word has length 21 [2022-11-18 18:32:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:16,611 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 232 transitions. [2022-11-18 18:32:16,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 232 transitions. [2022-11-18 18:32:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 18:32:16,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:16,613 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] [2022-11-18 18:32:16,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:16,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:16,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:16,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:16,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1738055004, now seen corresponding path program 1 times [2022-11-18 18:32:16,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:32:16,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084302063] [2022-11-18 18:32:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:16,830 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 18:32:16,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:32:16,831 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:16,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:17,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 18:32:17,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:32:18,392 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 18:32:18,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:32:18,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:32:18,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084302063] [2022-11-18 18:32:18,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084302063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:18,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:18,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:32:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280557924] [2022-11-18 18:32:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:18,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:32:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:32:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:32:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:18,395 INFO L87 Difference]: Start difference. First operand 182 states and 232 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:18,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:18,410 INFO L93 Difference]: Finished difference Result 346 states and 441 transitions. [2022-11-18 18:32:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:32:18,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 18:32:18,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:18,412 INFO L225 Difference]: With dead ends: 346 [2022-11-18 18:32:18,412 INFO L226 Difference]: Without dead ends: 176 [2022-11-18 18:32:18,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:18,414 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:18,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 851 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2022-11-18 18:32:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-18 18:32:18,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-11-18 18:32:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 171 states have internal predecessors, (215), 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 18:32:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2022-11-18 18:32:18,424 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 22 [2022-11-18 18:32:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:18,425 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2022-11-18 18:32:18,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:32:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2022-11-18 18:32:18,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 18:32:18,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:18,426 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, 1, 1, 1, 1] [2022-11-18 18:32:18,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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)] Forceful destruction successful, exit code 0 [2022-11-18 18:32:18,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:18,655 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:18,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:18,656 INFO L85 PathProgramCache]: Analyzing trace with hash 687114061, now seen corresponding path program 1 times [2022-11-18 18:32:18,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:32:18,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036308696] [2022-11-18 18:32:18,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:18,656 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 18:32:18,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:32:18,657 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:32:18,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 (11)] Waiting until timeout for monitored process [2022-11-18 18:32:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:19,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 18:32:19,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:32:22,104 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 18:32:22,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:32:22,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:32:22,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036308696] [2022-11-18 18:32:22,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036308696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:22,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:22,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:32:22,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33109178] [2022-11-18 18:32:22,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:22,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:32:22,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:32:22,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:32:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:32:22,107 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 18:32:26,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:30,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:32,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:34,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:36,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:41,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:43,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:45,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:48,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:51,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:53,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:55,677 WARN L539 Checker$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 18:32:57,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:32:59,981 WARN L539 Checker$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 18:33:01,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:04,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:06,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:08,186 WARN L539 Checker$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 18:33:09,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:12,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:14,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:16,053 WARN L539 Checker$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 18:33:18,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:20,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:22,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:24,851 WARN L539 Checker$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 18:33:26,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:29,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:31,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:34,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:36,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:38,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:42,186 INFO L93 Difference]: Finished difference Result 201 states and 243 transitions. [2022-11-18 18:33:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:33:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 28 [2022-11-18 18:33:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:42,198 INFO L225 Difference]: With dead ends: 201 [2022-11-18 18:33:42,198 INFO L226 Difference]: Without dead ends: 192 [2022-11-18 18:33:42,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:33:42,200 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 264 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:42,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1751 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 24 Unknown, 0 Unchecked, 78.3s Time] [2022-11-18 18:33:42,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-18 18:33:42,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 176. [2022-11-18 18:33:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 171 states have (on average 1.2456140350877194) internal successors, (213), 171 states have internal predecessors, (213), 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 18:33:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 219 transitions. [2022-11-18 18:33:42,215 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 219 transitions. Word has length 28 [2022-11-18 18:33:42,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:42,215 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 219 transitions. [2022-11-18 18:33:42,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 18:33:42,216 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 219 transitions. [2022-11-18 18:33:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 18:33:42,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:42,217 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, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:42,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:33:42,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:33:42,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:42,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1236711218, now seen corresponding path program 1 times [2022-11-18 18:33:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:33:42,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295908744] [2022-11-18 18:33:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:42,426 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 18:33:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:33:42,427 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:33:42,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 (12)] Waiting until timeout for monitored process [2022-11-18 18:33:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:43,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 18:33:43,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:33:44,873 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 18:33:44,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 18:33:44,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 18:33:44,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295908744] [2022-11-18 18:33:44,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295908744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:44,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:44,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 18:33:44,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496082360] [2022-11-18 18:33:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:44,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:33:44,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 18:33:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:33:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:33:44,878 INFO L87 Difference]: Start difference. First operand 176 states and 219 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 18:33:44,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:44,903 INFO L93 Difference]: Finished difference Result 184 states and 226 transitions. [2022-11-18 18:33:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:33:44,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 30 [2022-11-18 18:33:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:44,905 INFO L225 Difference]: With dead ends: 184 [2022-11-18 18:33:44,906 INFO L226 Difference]: Without dead ends: 152 [2022-11-18 18:33:44,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:33:44,907 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 2 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:44,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1082 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-18 18:33:44,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-18 18:33:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-11-18 18:33:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.217687074829932) internal successors, (179), 147 states have internal predecessors, (179), 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 18:33:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2022-11-18 18:33:44,919 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 30 [2022-11-18 18:33:44,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:44,919 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2022-11-18 18:33:44,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 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 18:33:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2022-11-18 18:33:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 18:33:44,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:44,921 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:44,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:33:45,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:33:45,136 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash -158208279, now seen corresponding path program 1 times [2022-11-18 18:33:45,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 18:33:45,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868890960] [2022-11-18 18:33:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:45,138 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 18:33:45,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 18:33:45,139 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 18:33:45,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 (13)] Waiting until timeout for monitored process [2022-11-18 18:33:46,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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 (13)] Ended with exit code 139 [2022-11-18 18:33:46,449 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_26d626a7-a511-4390-8ad4-911d00a7f706/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 (13) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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 18:33:46,455 INFO L158 Benchmark]: Toolchain (without parser) took 260684.91ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 33.9MB in the beginning and 33.3MB in the end (delta: 632.6kB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-11-18 18:33:46,456 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:33:46,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.81ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 43.4MB in the end (delta: -9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:33:46,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.10ms. Allocated memory is still 71.3MB. Free memory was 43.4MB in the beginning and 39.0MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 18:33:46,457 INFO L158 Benchmark]: Boogie Preprocessor took 95.80ms. Allocated memory is still 71.3MB. Free memory was 39.0MB in the beginning and 50.4MB in the end (delta: -11.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-18 18:33:46,458 INFO L158 Benchmark]: RCFGBuilder took 30875.27ms. Allocated memory is still 71.3MB. Free memory was 50.4MB in the beginning and 31.9MB in the end (delta: 18.4MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-11-18 18:33:46,458 INFO L158 Benchmark]: TraceAbstraction took 228770.93ms. Allocated memory is still 71.3MB. Free memory was 31.3MB in the beginning and 33.3MB in the end (delta: -2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:33:46,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 56.6MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.81ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 43.4MB in the end (delta: -9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.10ms. Allocated memory is still 71.3MB. Free memory was 43.4MB in the beginning and 39.0MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.80ms. Allocated memory is still 71.3MB. Free memory was 39.0MB in the beginning and 50.4MB in the end (delta: -11.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * RCFGBuilder took 30875.27ms. Allocated memory is still 71.3MB. Free memory was 50.4MB in the beginning and 31.9MB in the end (delta: 18.4MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * TraceAbstraction took 228770.93ms. Allocated memory is still 71.3MB. Free memory was 31.3MB in the beginning and 33.3MB in the end (delta: -2.0MB). 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_26d626a7-a511-4390-8ad4-911d00a7f706/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 (13) 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_26d626a7-a511-4390-8ad4-911d00a7f706/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 (13) 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 18:33:46,701 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-18 18:33:46,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d626a7-a511-4390-8ad4-911d00a7f706/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_26d626a7-a511-4390-8ad4-911d00a7f706/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 (13) with exit command (exit)) Received EOF on stdin. No stderr output.