./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN --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 8f97d7ab8eac5ca3d115fa0347c96d0f4518c09b98759dc2b329944b78141e6f --- 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-6b4ec56 [2022-11-20 11:33:29,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:33:29,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:33:29,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:33:29,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:33:29,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:33:29,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:33:29,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:33:29,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:33:29,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:33:29,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:33:29,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:33:29,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:33:29,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:33:29,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:33:29,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:33:29,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:33:29,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:33:29,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:33:29,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:33:29,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:33:29,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:33:29,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:33:29,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:33:29,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:33:29,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:33:29,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:33:29,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:33:29,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:33:29,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:33:29,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:33:29,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:33:29,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:33:29,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:33:29,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:33:29,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:33:29,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:33:29,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:33:29,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:33:29,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:33:29,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:33:29,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:33:29,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:33:29,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:33:29,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:33:29,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:33:29,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:33:29,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:33:29,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:33:29,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:33:29,416 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:33:29,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:33:29,417 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:33:29,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:33:29,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:33:29,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:33:29,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:33:29,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:33:29,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:33:29,419 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:33:29,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:33:29,419 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:33:29,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:33:29,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:33:29,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:33:29,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:33:29,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:33:29,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:33:29,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:33:29,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:33:29,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:33:29,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:33:29,423 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:33:29,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:33:29,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:33:29,423 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f97d7ab8eac5ca3d115fa0347c96d0f4518c09b98759dc2b329944b78141e6f [2022-11-20 11:33:29,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:33:29,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:33:29,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:33:29,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:33:29,836 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:33:29,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-newlib/double_req_bl_0210.c [2022-11-20 11:33:33,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:33:33,563 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:33:33,564 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/sv-benchmarks/c/float-newlib/double_req_bl_0210.c [2022-11-20 11:33:33,574 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data/851edff5d/2c8aa8591c5f47a4b75787c0611c1c18/FLAGddf5c80eb [2022-11-20 11:33:33,588 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data/851edff5d/2c8aa8591c5f47a4b75787c0611c1c18 [2022-11-20 11:33:33,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:33:33,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:33:33,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:33:33,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:33:33,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:33:33,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:33" (1/1) ... [2022-11-20 11:33:33,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f460d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:33, skipping insertion in model container [2022-11-20 11:33:33,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:33" (1/1) ... [2022-11-20 11:33:33,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:33:33,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:33:33,860 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) 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:1669) 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:1669) 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:1087) 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:1489) 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:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) 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) [2022-11-20 11:33:33,866 INFO L158 Benchmark]: Toolchain (without parser) took 272.50ms. Allocated memory is still 159.4MB. Free memory was 124.6MB in the beginning and 114.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:33:33,866 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:33:33,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.39ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 114.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:33:33,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.39ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 114.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN --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 8f97d7ab8eac5ca3d115fa0347c96d0f4518c09b98759dc2b329944b78141e6f --- 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-6b4ec56 [2022-11-20 11:33:36,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:33:36,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:33:36,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:33:36,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:33:36,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:33:36,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:33:36,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:33:36,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:33:36,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:33:36,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:33:36,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:33:36,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:33:36,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:33:36,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:33:36,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:33:36,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:33:36,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:33:36,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:33:36,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:33:36,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:33:36,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:33:36,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:33:36,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:33:36,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:33:36,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:33:36,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:33:36,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:33:36,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:33:36,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:33:36,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:33:36,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:33:36,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:33:36,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:33:36,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:33:36,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:33:36,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:33:36,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:33:36,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:33:36,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:33:36,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:33:36,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 11:33:36,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:33:36,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:33:36,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:33:36,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:33:36,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:33:36,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:33:36,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:33:36,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:33:36,541 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:33:36,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:33:36,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:33:36,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:33:36,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:33:36,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:33:36,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:33:36,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:33:36,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:33:36,544 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:33:36,544 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:33:36,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:33:36,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:33:36,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:33:36,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:33:36,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:33:36,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:33:36,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:33:36,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:33:36,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:33:36,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:33:36,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:33:36,547 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:33:36,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:33:36,548 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:33:36,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:33:36,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:33:36,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:33:36,549 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f97d7ab8eac5ca3d115fa0347c96d0f4518c09b98759dc2b329944b78141e6f [2022-11-20 11:33:36,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:33:36,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:33:36,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:33:36,922 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:33:36,922 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:33:36,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-newlib/double_req_bl_0210.c [2022-11-20 11:33:39,947 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:33:40,244 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:33:40,246 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/sv-benchmarks/c/float-newlib/double_req_bl_0210.c [2022-11-20 11:33:40,262 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data/334036971/952e0add01e641ceb964cbb71b3e12ad/FLAGabb811aa6 [2022-11-20 11:33:40,288 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/data/334036971/952e0add01e641ceb964cbb71b3e12ad [2022-11-20 11:33:40,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:33:40,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:33:40,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:33:40,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:33:40,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:33:40,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:40" (1/1) ... [2022-11-20 11:33:40,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c1309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:40, skipping insertion in model container [2022-11-20 11:33:40,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:33:40" (1/1) ... [2022-11-20 11:33:40,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:33:40,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:33:40,811 WARN L237 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/sv-benchmarks/c/float-newlib/double_req_bl_0210.c[15959,15972] [2022-11-20 11:33:40,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:33:40,857 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:33:41,071 WARN L237 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/sv-benchmarks/c/float-newlib/double_req_bl_0210.c[15959,15972] [2022-11-20 11:33:41,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:33:41,103 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:33:41,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41 WrapperNode [2022-11-20 11:33:41,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:33:41,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:33:41,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:33:41,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:33:41,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,238 INFO L138 Inliner]: procedures = 29, calls = 375, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1022 [2022-11-20 11:33:41,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:33:41,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:33:41,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:33:41,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:33:41,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,376 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:33:41,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:33:41,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:33:41,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:33:41,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (1/1) ... [2022-11-20 11:33:41,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:33:41,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:33:41,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:33:41,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:33:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:33:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-20 11:33:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2022-11-20 11:33:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2022-11-20 11:33:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-20 11:33:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:33:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:33:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cos [2022-11-20 11:33:41,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cos [2022-11-20 11:33:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:33:41,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-20 11:33:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:33:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sin [2022-11-20 11:33:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sin [2022-11-20 11:33:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-11-20 11:33:41,481 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-11-20 11:33:41,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:33:41,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:33:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:33:41,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:33:41,696 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:33:41,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:34:47,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:34:47,829 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:34:47,829 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-20 11:34:47,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:47 BoogieIcfgContainer [2022-11-20 11:34:47,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:34:47,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:34:47,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:34:47,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:34:47,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:33:40" (1/3) ... [2022-11-20 11:34:47,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75993102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:34:47, skipping insertion in model container [2022-11-20 11:34:47,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:33:41" (2/3) ... [2022-11-20 11:34:47,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75993102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:34:47, skipping insertion in model container [2022-11-20 11:34:47,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:34:47" (3/3) ... [2022-11-20 11:34:47,840 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0210.c [2022-11-20 11:34:47,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:34:47,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:34:47,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:34:47,925 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;@6569a42e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:34:47,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:34:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 236 states have (on average 1.6652542372881356) internal successors, (393), 237 states have internal predecessors, (393), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 11:34:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 11:34:47,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:47,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:47,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:34:47,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:47,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1678301909, now seen corresponding path program 1 times [2022-11-20 11:34:47,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:34:47,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738704918] [2022-11-20 11:34:47,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:47,973 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 [2022-11-20 11:34:47,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:34:47,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:34:48,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:34:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:48,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:34:48,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:48,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:48,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:48,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:34:48,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738704918] [2022-11-20 11:34:48,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738704918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:48,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:48,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:34:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061001735] [2022-11-20 11:34:48,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:48,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:34:48,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:34:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:34:48,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:34:48,580 INFO L87 Difference]: Start difference. First operand has 254 states, 236 states have (on average 1.6652542372881356) internal successors, (393), 237 states have internal predecessors, (393), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:34:48,671 INFO L93 Difference]: Finished difference Result 506 states and 844 transitions. [2022-11-20 11:34:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:34:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 11:34:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:34:48,685 INFO L225 Difference]: With dead ends: 506 [2022-11-20 11:34:48,686 INFO L226 Difference]: Without dead ends: 251 [2022-11-20 11:34:48,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:34:48,694 INFO L413 NwaCegarLoop]: 353 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, 353 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 [2022-11-20 11:34:48,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:34:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-20 11:34:48,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-11-20 11:34:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 234 states have (on average 1.393162393162393) internal successors, (326), 234 states have internal predecessors, (326), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 11:34:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 350 transitions. [2022-11-20 11:34:48,748 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 350 transitions. Word has length 10 [2022-11-20 11:34:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:34:48,748 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 350 transitions. [2022-11-20 11:34:48,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 350 transitions. [2022-11-20 11:34:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:34:48,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:34:48,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:34:48,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 11:34:48,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:34:48,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:34:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:34:48,958 INFO L85 PathProgramCache]: Analyzing trace with hash 749612129, now seen corresponding path program 1 times [2022-11-20 11:34:48,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:34:48,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092979668] [2022-11-20 11:34:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:34:48,959 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 [2022-11-20 11:34:48,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:34:48,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:34:48,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:34:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:34:49,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:34:49,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:34:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:34:50,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:34:50,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:34:50,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092979668] [2022-11-20 11:34:50,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092979668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:34:50,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:34:50,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:34:50,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952305547] [2022-11-20 11:34:50,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:34:50,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:34:50,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:34:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:34:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:34:50,550 INFO L87 Difference]: Start difference. First operand 251 states and 350 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:34:54,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:34:58,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:00,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:03,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:05,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:06,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:08,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:12,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:15,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:17,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:21,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:23,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:25,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:27,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:30,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:32,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:35,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:37,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:38,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:40,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:43,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:46,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:49,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:52,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:35:59,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:02,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:03,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:06,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:08,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:10,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:13,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:15,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:17,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:20,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 11:36:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:20,611 INFO L93 Difference]: Finished difference Result 379 states and 525 transitions. [2022-11-20 11:36:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:36:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 11:36:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:20,655 INFO L225 Difference]: With dead ends: 379 [2022-11-20 11:36:20,655 INFO L226 Difference]: Without dead ends: 374 [2022-11-20 11:36:20,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:20,657 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 187 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:20,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1765 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 25 Unknown, 0 Unchecked, 89.4s Time] [2022-11-20 11:36:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-11-20 11:36:20,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 306. [2022-11-20 11:36:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 283 states have (on average 1.3780918727915195) internal successors, (390), 285 states have internal predecessors, (390), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-20 11:36:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 423 transitions. [2022-11-20 11:36:20,693 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 423 transitions. Word has length 11 [2022-11-20 11:36:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:20,694 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 423 transitions. [2022-11-20 11:36:20,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:36:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 423 transitions. [2022-11-20 11:36:20,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 11:36:20,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:20,696 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] [2022-11-20 11:36:20,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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)] Ended with exit code 0 [2022-11-20 11:36:20,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:20,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:36:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1192633040, now seen corresponding path program 1 times [2022-11-20 11:36:20,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:20,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902492878] [2022-11-20 11:36:20,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:20,914 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 [2022-11-20 11:36:20,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:20,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:36:20,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:21,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:36:21,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:24,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:24,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:24,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:24,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902492878] [2022-11-20 11:36:24,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902492878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:24,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:24,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:36:24,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750899094] [2022-11-20 11:36:24,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:24,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:36:24,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:24,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:36:24,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2022-11-20 11:36:24,110 INFO L87 Difference]: Start difference. First operand 306 states and 423 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:36:24,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:24,129 INFO L93 Difference]: Finished difference Result 321 states and 439 transitions. [2022-11-20 11:36:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:36:24,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-20 11:36:24,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:24,137 INFO L225 Difference]: With dead ends: 321 [2022-11-20 11:36:24,137 INFO L226 Difference]: Without dead ends: 304 [2022-11-20 11:36:24,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2022-11-20 11:36:24,143 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 0 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:24,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1361 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-11-20 11:36:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-20 11:36:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2022-11-20 11:36:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 282 states have (on average 1.375886524822695) internal successors, (388), 284 states have internal predecessors, (388), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-20 11:36:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 419 transitions. [2022-11-20 11:36:24,184 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 419 transitions. Word has length 20 [2022-11-20 11:36:24,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:24,185 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 419 transitions. [2022-11-20 11:36:24,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:36:24,186 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 419 transitions. [2022-11-20 11:36:24,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 11:36:24,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:24,189 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] [2022-11-20 11:36:24,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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)] Ended with exit code 0 [2022-11-20 11:36:24,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:24,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:36:24,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1723516166, now seen corresponding path program 1 times [2022-11-20 11:36:24,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:24,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009686455] [2022-11-20 11:36:24,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:24,411 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 [2022-11-20 11:36:24,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:24,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:36:24,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:24,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:36:24,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:26,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:26,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:26,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009686455] [2022-11-20 11:36:26,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009686455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:26,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:26,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:36:26,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144970550] [2022-11-20 11:36:26,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:26,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:36:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:26,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:36:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:36:26,101 INFO L87 Difference]: Start difference. First operand 304 states and 419 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) [2022-11-20 11:36:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:26,120 INFO L93 Difference]: Finished difference Result 347 states and 474 transitions. [2022-11-20 11:36:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:36:26,121 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 [2022-11-20 11:36:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:26,123 INFO L225 Difference]: With dead ends: 347 [2022-11-20 11:36:26,123 INFO L226 Difference]: Without dead ends: 304 [2022-11-20 11:36:26,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:36:26,125 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 0 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:26,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1665 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2022-11-20 11:36:26,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-11-20 11:36:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2022-11-20 11:36:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 282 states have (on average 1.372340425531915) internal successors, (387), 284 states have internal predecessors, (387), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-20 11:36:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 418 transitions. [2022-11-20 11:36:26,143 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 418 transitions. Word has length 21 [2022-11-20 11:36:26,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:26,143 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 418 transitions. [2022-11-20 11:36:26,144 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) [2022-11-20 11:36:26,144 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 418 transitions. [2022-11-20 11:36:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:36:26,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:26,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:36:26,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:26,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:26,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:36:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:26,368 INFO L85 PathProgramCache]: Analyzing trace with hash 260016389, now seen corresponding path program 1 times [2022-11-20 11:36:26,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713333729] [2022-11-20 11:36:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:26,369 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 [2022-11-20 11:36:26,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:26,370 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:36:26,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:26,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:26,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:36:27,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:27,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:27,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713333729] [2022-11-20 11:36:27,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713333729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:27,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:27,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:36:27,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410990322] [2022-11-20 11:36:27,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:27,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:36:27,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:27,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:36:27,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:36:27,030 INFO L87 Difference]: Start difference. First operand 304 states and 418 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-20 11:36:27,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:27,529 INFO L93 Difference]: Finished difference Result 351 states and 476 transitions. [2022-11-20 11:36:27,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:36:27,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2022-11-20 11:36:27,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:27,532 INFO L225 Difference]: With dead ends: 351 [2022-11-20 11:36:27,532 INFO L226 Difference]: Without dead ends: 312 [2022-11-20 11:36:27,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:36:27,534 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 22 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:27,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 993 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:36:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-20 11:36:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 305. [2022-11-20 11:36:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 285 states have internal predecessors, (387), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-20 11:36:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 418 transitions. [2022-11-20 11:36:27,553 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 418 transitions. Word has length 24 [2022-11-20 11:36:27,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:27,554 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 418 transitions. [2022-11-20 11:36:27,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-20 11:36:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 418 transitions. [2022-11-20 11:36:27,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 11:36:27,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:27,556 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] [2022-11-20 11:36:27,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:27,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:27,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:36:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:27,768 INFO L85 PathProgramCache]: Analyzing trace with hash 819642020, now seen corresponding path program 1 times [2022-11-20 11:36:27,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:27,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974699248] [2022-11-20 11:36:27,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:27,769 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 [2022-11-20 11:36:27,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:27,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:36:27,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:28,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:36:28,289 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) 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 [2022-11-20 11:36:28,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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 139 [2022-11-20 11:36:28,296 INFO L158 Benchmark]: Toolchain (without parser) took 167998.46ms. Allocated memory is still 81.8MB. Free memory was 59.9MB in the beginning and 40.4MB in the end (delta: 19.6MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-11-20 11:36:28,296 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:36:28,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 804.73ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 53.2MB in the end (delta: 6.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-11-20 11:36:28,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.49ms. Allocated memory is still 81.8MB. Free memory was 52.8MB in the beginning and 46.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:36:28,298 INFO L158 Benchmark]: Boogie Preprocessor took 149.76ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 39.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:36:28,298 INFO L158 Benchmark]: RCFGBuilder took 66437.03ms. Allocated memory is still 81.8MB. Free memory was 39.5MB in the beginning and 48.1MB in the end (delta: -8.6MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-20 11:36:28,299 INFO L158 Benchmark]: TraceAbstraction took 100461.24ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 40.4MB in the end (delta: 7.0MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-20 11:36:28,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 804.73ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 53.2MB in the end (delta: 6.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 138.49ms. Allocated memory is still 81.8MB. Free memory was 52.8MB in the beginning and 46.9MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 149.76ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 39.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 66437.03ms. Allocated memory is still 81.8MB. Free memory was 39.5MB in the beginning and 48.1MB in the end (delta: -8.6MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 100461.24ms. Allocated memory is still 81.8MB. Free memory was 47.4MB in the beginning and 40.4MB in the end (delta: 7.0MB). Peak memory consumption was 6.2MB. 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) 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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) 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. [2022-11-20 11:36:28,535 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-20 11:36:28,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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_2312db55-864a-4844-9d4c-dfd3f38f1b11/bin/uautomizer-ug76WZFUDN/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) with exit command (exit)) Received EOF on stdin. No stderr output.