./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa --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 b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:39:34,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:39:34,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:39:34,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:39:34,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:39:34,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:39:34,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:39:34,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:39:34,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:39:34,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:39:34,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:39:34,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:39:34,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:39:34,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:39:34,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:39:34,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:39:34,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:39:34,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:39:34,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:39:34,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:39:34,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:39:34,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:39:34,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:39:34,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:39:34,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:39:34,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:39:34,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:39:34,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:39:34,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:39:34,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:39:34,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:39:34,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:39:34,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:39:34,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:39:34,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:39:34,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:39:34,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:39:34,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:39:34,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:39:34,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:39:34,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:39:34,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:39:34,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:39:34,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:39:34,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:39:34,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:39:34,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:39:34,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:39:34,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:39:34,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:39:34,660 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:39:34,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:39:34,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:39:34,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:39:34,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:39:34,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:39:34,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:39:34,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:39:34,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:39:34,662 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:39:34,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:39:34,662 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:39:34,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:39:34,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:39:34,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:34,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:39:34,663 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:39:34,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:39:34,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:39:34,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:39:34,664 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_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 [2021-12-07 01:39:34,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:39:34,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:39:34,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:39:34,872 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:39:34,873 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:39:34,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2021-12-07 01:39:34,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/55b899bc2/e70478d8606546b4aec27f4d49e2f75f/FLAG3c994870f [2021-12-07 01:39:35,288 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:39:35,288 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2021-12-07 01:39:35,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/55b899bc2/e70478d8606546b4aec27f4d49e2f75f/FLAG3c994870f [2021-12-07 01:39:35,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/55b899bc2/e70478d8606546b4aec27f4d49e2f75f [2021-12-07 01:39:35,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:39:35,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:39:35,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:35,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:39:35,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:39:35,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdc03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35, skipping insertion in model container [2021-12-07 01:39:35,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:39:35,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:39:35,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2021-12-07 01:39:35,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2021-12-07 01:39:35,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:35,493 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:39:35,505 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2021-12-07 01:39:35,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2021-12-07 01:39:35,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:35,523 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:39:35,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35 WrapperNode [2021-12-07 01:39:35,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:35,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:35,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:39:35,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:39:35,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,558 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 150 [2021-12-07 01:39:35,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:35,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:39:35,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:39:35,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:39:35,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:39:35,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:39:35,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:39:35,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:39:35,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:35,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:39:35,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:39:35,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:39:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:39:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:39:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:39:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:39:35,704 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:39:35,706 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:39:35,841 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:39:35,847 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:39:35,848 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:39:35,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:35 BoogieIcfgContainer [2021-12-07 01:39:35,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:39:35,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:39:35,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:39:35,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:39:35,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:39:35" (1/3) ... [2021-12-07 01:39:35,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c371076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:35, skipping insertion in model container [2021-12-07 01:39:35,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (2/3) ... [2021-12-07 01:39:35,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c371076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:35, skipping insertion in model container [2021-12-07 01:39:35,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:35" (3/3) ... [2021-12-07 01:39:35,858 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+lhb-reducer.c [2021-12-07 01:39:35,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:39:35,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 01:39:35,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:39:35,916 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:39:35,917 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 01:39:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-07 01:39:35,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:35,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:35,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:35,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash 346658074, now seen corresponding path program 1 times [2021-12-07 01:39:35,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:35,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388763811] [2021-12-07 01:39:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:35,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:39:36,054 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:39:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:39:36,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:39:36,093 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 01:39:36,095 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-07 01:39:36,096 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-07 01:39:36,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:39:36,101 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-07 01:39:36,104 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:39:36,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:39:36 BoogieIcfgContainer [2021-12-07 01:39:36,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:39:36,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:39:36,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:39:36,137 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:39:36,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:35" (3/4) ... [2021-12-07 01:39:36,141 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:39:36,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:39:36,142 INFO L158 Benchmark]: Toolchain (without parser) took 833.51ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 70.0MB in the end (delta: 20.7MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-12-07 01:39:36,143 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 100.5MB in the beginning and 100.5MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:39:36,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.59ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 99.4MB in the end (delta: -9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 01:39:36,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.70ms. Allocated memory is still 127.9MB. Free memory was 99.4MB in the beginning and 97.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:39:36,145 INFO L158 Benchmark]: Boogie Preprocessor took 18.55ms. Allocated memory is still 127.9MB. Free memory was 97.9MB in the beginning and 96.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:39:36,146 INFO L158 Benchmark]: RCFGBuilder took 271.06ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 84.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-07 01:39:36,147 INFO L158 Benchmark]: TraceAbstraction took 284.87ms. Allocated memory is still 127.9MB. Free memory was 84.7MB in the beginning and 70.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-07 01:39:36,147 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 127.9MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:39:36,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory was 100.5MB in the beginning and 100.5MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.59ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 99.4MB in the end (delta: -9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.70ms. Allocated memory is still 127.9MB. Free memory was 99.4MB in the beginning and 97.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.55ms. Allocated memory is still 127.9MB. Free memory was 97.9MB in the beginning and 96.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 271.06ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 84.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 284.87ms. Allocated memory is still 127.9MB. Free memory was 84.7MB in the beginning and 70.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 127.9MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 67]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L1] int __return_main; [L12] int __tmp_160_0; [L13] int __tmp_160_1; [L14] int __tmp_160_2; [L15] int __return_165; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L18] float main__X; [L19] float main__Y; [L20] float main__S; [L21] float main__R; [L22] float main__D; [L23] int main__i; [L24] main__Y = 0 [L25] main__i = 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L26] COND TRUE main__i < 100000 [L28] main__X = __VERIFIER_nondet_float() [L29] main__D = __VERIFIER_nondet_float() [L30] int main____CPAchecker_TMP_0; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=51, main__i=0, main__X=50] [L31] COND TRUE main__X >= -128.0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=51, main__i=0, main__X=50] [L33] COND TRUE main__X <= 128.0 [L35] main____CPAchecker_TMP_0 = 1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=51, main__i=0, main__X=50] [L36] COND TRUE main____CPAchecker_TMP_0 != 0 [L38] int main____CPAchecker_TMP_1; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=51, main__i=0, main__X=50] [L39] COND TRUE main__D >= 0.0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=51, main__i=0, main__X=50] [L41] COND TRUE main__D <= 16.0 [L43] main____CPAchecker_TMP_1 = 1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=51, main__i=0, main__X=50] [L44] COND TRUE main____CPAchecker_TMP_1 != 0 [L46] main__S = main__Y [L47] main__Y = main__X [L48] main__R = main__X - main__S VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=51, main__i=0, main__S=49, main__X=50, main__Y=50] [L49] COND TRUE main__R <= (-main__D) [L51] main__Y = main__S - main__D VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=51, main__i=0, main__S=49, main__X=50] [L53] int main____CPAchecker_TMP_2; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=51, main__i=0, main__S=49, main__X=50] [L54] COND FALSE !(main__Y >= -129.0) VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=51, main__i=0, main__S=49, main__X=50] [L205] main____CPAchecker_TMP_2 = 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=51, main__i=0, main__S=49, main__X=50] [L61] int __tmp_1; [L62] __tmp_1 = main____CPAchecker_TMP_2 [L63] int __VERIFIER_assert__cond; [L64] __VERIFIER_assert__cond = __tmp_1 VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=51, main__i=0, main__S=49, main__X=50] [L65] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=51, main__i=0, main__S=49, main__X=50] [L67] reach_error() VAL [__return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=51, main__i=0, main__S=49, main__X=50] - UnprovableResult [Line: 123]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-07 01:39:36,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa --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 b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:39:37,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:39:37,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:39:37,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:39:37,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:39:37,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:39:37,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:39:37,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:39:37,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:39:37,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:39:37,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:39:37,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:39:37,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:39:37,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:39:37,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:39:37,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:39:37,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:39:37,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:39:37,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:39:37,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:39:37,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:39:37,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:39:37,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:39:37,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:39:37,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:39:37,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:39:37,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:39:37,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:39:37,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:39:37,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:39:37,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:39:37,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:39:37,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:39:37,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:39:37,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:39:37,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:39:37,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:39:37,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:39:37,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:39:37,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:39:37,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:39:37,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-07 01:39:37,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:39:37,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:39:37,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:39:37,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:39:37,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:39:37,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:39:37,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:39:37,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:39:37,965 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:39:37,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:39:37,965 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:39:37,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:39:37,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:39:37,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:39:37,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:39:37,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:39:37,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:39:37,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:39:37,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:39:37,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:37,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:39:37,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:39:37,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 01:39:37,969 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_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d60c093ba6c9dcaff9815fcaab264eab148dbcfff5c12da0f56175eb222a22 [2021-12-07 01:39:38,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:39:38,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:39:38,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:39:38,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:39:38,221 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:39:38,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2021-12-07 01:39:38,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/4fb57d1e3/03543c7223da47b9a58d8fdf8acf53e0/FLAG10fa9f8fe [2021-12-07 01:39:38,660 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:39:38,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2021-12-07 01:39:38,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/4fb57d1e3/03543c7223da47b9a58d8fdf8acf53e0/FLAG10fa9f8fe [2021-12-07 01:39:38,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/data/4fb57d1e3/03543c7223da47b9a58d8fdf8acf53e0 [2021-12-07 01:39:38,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:39:38,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:39:38,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:38,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:39:38,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:39:38,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ff450a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38, skipping insertion in model container [2021-12-07 01:39:38,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:39:38,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:39:38,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2021-12-07 01:39:38,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2021-12-07 01:39:38,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:38,870 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:39:38,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] [2021-12-07 01:39:38,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] [2021-12-07 01:39:38,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:38,913 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:39:38,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38 WrapperNode [2021-12-07 01:39:38,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:38,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:38,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:39:38,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:39:38,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,944 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 151 [2021-12-07 01:39:38,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:38,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:39:38,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:39:38,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:39:38,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:39:38,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:39:38,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:39:38,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:39:38,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (1/1) ... [2021-12-07 01:39:38,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:38,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:39:38,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:39:38,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:39:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:39:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 01:39:39,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:39:39,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:39:39,092 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:39:39,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:39:40,748 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:39:40,753 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:39:40,753 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 01:39:40,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:40 BoogieIcfgContainer [2021-12-07 01:39:40,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:39:40,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:39:40,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:39:40,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:39:40,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:39:38" (1/3) ... [2021-12-07 01:39:40,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb2dc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:40, skipping insertion in model container [2021-12-07 01:39:40,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:38" (2/3) ... [2021-12-07 01:39:40,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb2dc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:40, skipping insertion in model container [2021-12-07 01:39:40,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:40" (3/3) ... [2021-12-07 01:39:40,760 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+lhb-reducer.c [2021-12-07 01:39:40,763 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:39:40,763 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 01:39:40,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:39:40,809 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 01:39:40,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 01:39:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-07 01:39:40,826 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:40,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:40,828 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:40,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 346658074, now seen corresponding path program 1 times [2021-12-07 01:39:40,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:39:40,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921367285] [2021-12-07 01:39:40,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:40,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:39:40,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:39:40,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:39:40,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 01:39:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:40,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:39:40,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:39:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:46,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:39:46,456 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:39:46,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921367285] [2021-12-07 01:39:46,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921367285] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:46,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:46,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:39:46,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510149954] [2021-12-07 01:39:46,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:46,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:39:46,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:39:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:39:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:39:46,483 INFO L87 Difference]: Start difference. First operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:02,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:02,460 INFO L93 Difference]: Finished difference Result 114 states and 159 transitions. [2021-12-07 01:40:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:40:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-07 01:40:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:02,474 INFO L225 Difference]: With dead ends: 114 [2021-12-07 01:40:02,474 INFO L226 Difference]: Without dead ends: 68 [2021-12-07 01:40:02,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:40:02,479 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 90 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:02,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 253 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 203 Invalid, 0 Unknown, 23 Unchecked, 14.1s Time] [2021-12-07 01:40:02,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-07 01:40:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2021-12-07 01:40:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.358974358974359) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-12-07 01:40:02,502 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 16 [2021-12-07 01:40:02,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:02,503 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-12-07 01:40:02,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-12-07 01:40:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-07 01:40:02,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:40:02,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:02,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:40:02,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:02,706 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:40:02,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 257195701, now seen corresponding path program 1 times [2021-12-07 01:40:02,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:40:02,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467359338] [2021-12-07 01:40:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:02,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:40:02,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:40:02,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:40:02,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 01:40:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:02,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:40:02,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:40:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:02,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:40:02,824 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:40:02,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467359338] [2021-12-07 01:40:02,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467359338] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:02,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:02,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:40:02,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179573728] [2021-12-07 01:40:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:02,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:40:02,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:40:02,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:40:02,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:40:02,826 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:02,850 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2021-12-07 01:40:02,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:40:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-07 01:40:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:02,852 INFO L225 Difference]: With dead ends: 66 [2021-12-07 01:40:02,852 INFO L226 Difference]: Without dead ends: 64 [2021-12-07 01:40:02,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:40:02,853 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:02,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:40:02,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-07 01:40:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 43. [2021-12-07 01:40:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-12-07 01:40:02,859 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 16 [2021-12-07 01:40:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:02,859 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-12-07 01:40:02,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:02,859 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2021-12-07 01:40:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 01:40:02,860 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:40:02,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:02,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 01:40:03,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:03,061 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:40:03,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:03,061 INFO L85 PathProgramCache]: Analyzing trace with hash -533932591, now seen corresponding path program 1 times [2021-12-07 01:40:03,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:40:03,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828745561] [2021-12-07 01:40:03,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:03,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:40:03,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:40:03,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:40:03,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 01:40:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:03,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:40:03,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:40:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:10,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:40:10,580 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:40:10,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828745561] [2021-12-07 01:40:10,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828745561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:10,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:10,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:40:10,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397346624] [2021-12-07 01:40:10,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:10,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:40:10,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:40:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:40:10,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:40:10,582 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:17,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:17,577 INFO L93 Difference]: Finished difference Result 96 states and 125 transitions. [2021-12-07 01:40:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:40:17,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-07 01:40:17,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:17,586 INFO L225 Difference]: With dead ends: 96 [2021-12-07 01:40:17,586 INFO L226 Difference]: Without dead ends: 71 [2021-12-07 01:40:17,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:40:17,587 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 67 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:17,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 136 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 24 Unchecked, 5.4s Time] [2021-12-07 01:40:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-12-07 01:40:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 44. [2021-12-07 01:40:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-12-07 01:40:17,593 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 17 [2021-12-07 01:40:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:17,593 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-12-07 01:40:17,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-12-07 01:40:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 01:40:17,593 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:40:17,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:17,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-07 01:40:17,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:17,795 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:40:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:17,797 INFO L85 PathProgramCache]: Analyzing trace with hash -354879015, now seen corresponding path program 1 times [2021-12-07 01:40:17,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:40:17,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451447863] [2021-12-07 01:40:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:17,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:40:17,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:40:17,802 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:40:17,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-07 01:40:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:17,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:40:17,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:40:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:23,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:40:23,210 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:40:23,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451447863] [2021-12-07 01:40:23,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451447863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:23,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:23,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:40:23,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697800089] [2021-12-07 01:40:23,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:23,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:40:23,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:40:23,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:40:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:40:23,213 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:30,213 INFO L93 Difference]: Finished difference Result 73 states and 94 transitions. [2021-12-07 01:40:30,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:40:30,220 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-07 01:40:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:30,221 INFO L225 Difference]: With dead ends: 73 [2021-12-07 01:40:30,221 INFO L226 Difference]: Without dead ends: 48 [2021-12-07 01:40:30,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:40:30,222 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 52 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:30,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 75 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 26 Unchecked, 5.0s Time] [2021-12-07 01:40:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-07 01:40:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2021-12-07 01:40:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2021-12-07 01:40:30,227 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 17 [2021-12-07 01:40:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:30,227 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2021-12-07 01:40:30,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:30,228 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2021-12-07 01:40:30,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 01:40:30,228 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:40:30,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:30,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-07 01:40:30,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:30,430 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:40:30,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:30,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1420128347, now seen corresponding path program 1 times [2021-12-07 01:40:30,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:40:30,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937676826] [2021-12-07 01:40:30,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:30,434 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:40:30,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:40:30,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:40:30,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-07 01:40:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:30,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:40:30,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:40:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:33,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:40:33,796 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:40:33,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937676826] [2021-12-07 01:40:33,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937676826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:33,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:33,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:40:33,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042260907] [2021-12-07 01:40:33,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:33,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:40:33,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:40:33,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:40:33,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:40:33,798 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:57,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:57,573 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2021-12-07 01:40:57,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:40:57,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-07 01:40:57,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:57,582 INFO L225 Difference]: With dead ends: 137 [2021-12-07 01:40:57,582 INFO L226 Difference]: Without dead ends: 112 [2021-12-07 01:40:57,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:40:57,583 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 129 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:57,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 94 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time] [2021-12-07 01:40:57,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-12-07 01:40:57,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 54. [2021-12-07 01:40:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 53 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2021-12-07 01:40:57,589 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 17 [2021-12-07 01:40:57,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:57,589 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2021-12-07 01:40:57,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:57,589 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2021-12-07 01:40:57,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-07 01:40:57,590 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:40:57,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:57,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-07 01:40:57,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:57,791 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:40:57,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:57,793 INFO L85 PathProgramCache]: Analyzing trace with hash -806745870, now seen corresponding path program 1 times [2021-12-07 01:40:57,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:40:57,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924782029] [2021-12-07 01:40:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:57,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:40:57,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:40:57,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:40:57,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-07 01:40:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:57,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:40:57,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:41:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:05,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:41:05,397 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:41:05,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924782029] [2021-12-07 01:41:05,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924782029] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:05,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:05,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:41:05,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051072721] [2021-12-07 01:41:05,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:05,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-07 01:41:05,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:41:05,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:41:05,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:41:05,398 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:41:12,545 INFO L93 Difference]: Finished difference Result 86 states and 113 transitions. [2021-12-07 01:41:12,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:41:12,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-07 01:41:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:41:12,554 INFO L225 Difference]: With dead ends: 86 [2021-12-07 01:41:12,554 INFO L226 Difference]: Without dead ends: 51 [2021-12-07 01:41:12,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-07 01:41:12,558 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:41:12,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 66 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 25 Unchecked, 5.2s Time] [2021-12-07 01:41:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-07 01:41:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2021-12-07 01:41:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:12,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2021-12-07 01:41:12,563 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 18 [2021-12-07 01:41:12,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:41:12,563 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2021-12-07 01:41:12,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2021-12-07 01:41:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:41:12,564 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:41:12,564 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:41:12,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-07 01:41:12,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:41:12,766 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:41:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1099426199, now seen corresponding path program 1 times [2021-12-07 01:41:12,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:41:12,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062628917] [2021-12-07 01:41:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:12,770 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:41:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:41:12,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:41:12,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-07 01:41:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:12,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:41:12,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:41:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:41:12,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:41:12,992 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:41:12,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062628917] [2021-12-07 01:41:12,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062628917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:41:12,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:41:12,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 01:41:12,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508239869] [2021-12-07 01:41:12,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:41:12,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 01:41:12,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:41:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 01:41:12,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 01:41:12,994 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:13,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:41:13,027 INFO L93 Difference]: Finished difference Result 78 states and 104 transitions. [2021-12-07 01:41:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:41:13,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 01:41:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:41:13,029 INFO L225 Difference]: With dead ends: 78 [2021-12-07 01:41:13,029 INFO L226 Difference]: Without dead ends: 76 [2021-12-07 01:41:13,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:41:13,030 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:41:13,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 153 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:41:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-12-07 01:41:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 48. [2021-12-07 01:41:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2021-12-07 01:41:13,035 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 30 [2021-12-07 01:41:13,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:41:13,036 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2021-12-07 01:41:13,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:41:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2021-12-07 01:41:13,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:41:13,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:41:13,037 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:41:13,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-07 01:41:13,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:41:13,239 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:41:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:41:13,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1082415538, now seen corresponding path program 1 times [2021-12-07 01:41:13,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:41:13,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858049666] [2021-12-07 01:41:13,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:41:13,242 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:41:13,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:41:13,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:41:13,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-07 01:41:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:41:13,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 01:41:13,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:43:21,290 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_13| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_21| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_21|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse0 (_ +zero 11 53)) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_21|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq |v_ULTIMATE.start_main_~main__R~0#1_13| (fp.neg |v_ULTIMATE.start_main_~main__D~0#1_21|)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse2 (_ +zero 11 53))))) is different from false [2021-12-07 01:43:23,303 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~main__R~0#1_13| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24)) (|v_ULTIMATE.start_main_~main__D~0#1_21| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven |v_ULTIMATE.start_main_~main__D~0#1_21|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.leq .cse0 .cse1) (fp.leq .cse2 .cse1) (fp.geq .cse0 (_ +zero 11 53)) (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) |v_ULTIMATE.start_main_~main__D~0#1_21|) |ULTIMATE.start_main_~main__D~0#1|)) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0)))) (fp.leq |v_ULTIMATE.start_main_~main__R~0#1_13| (fp.neg |v_ULTIMATE.start_main_~main__D~0#1_21|)) (fp.leq |ULTIMATE.start_main_~main__R~0#1| (fp.neg |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse2 (_ +zero 11 53))))) is different from true [2021-12-07 01:46:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:46:50,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:46:50,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:46:50,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858049666] [2021-12-07 01:46:50,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858049666] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:50,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:50,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-07 01:46:50,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521680857] [2021-12-07 01:46:50,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:50,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-07 01:46:50,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:46:50,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-07 01:46:50,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=83, Unknown=2, NotChecked=20, Total=156 [2021-12-07 01:46:50,825 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:54,206 INFO L93 Difference]: Finished difference Result 69 states and 89 transitions. [2021-12-07 01:46:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:46:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 01:46:54,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:54,212 INFO L225 Difference]: With dead ends: 69 [2021-12-07 01:46:54,212 INFO L226 Difference]: Without dead ends: 67 [2021-12-07 01:46:54,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=60, Invalid=98, Unknown=2, NotChecked=22, Total=182 [2021-12-07 01:46:54,213 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:54,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 58 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 80 Unchecked, 1.3s Time] [2021-12-07 01:46:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-07 01:46:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2021-12-07 01:46:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2021-12-07 01:46:54,224 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 30 [2021-12-07 01:46:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:54,224 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2021-12-07 01:46:54,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2021-12-07 01:46:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:46:54,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:54,226 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:46:54,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-07 01:46:54,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:46:54,428 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:46:54,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1958707529, now seen corresponding path program 1 times [2021-12-07 01:46:54,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:46:54,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789104160] [2021-12-07 01:46:54,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:54,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:46:54,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:46:54,433 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:46:54,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-07 01:46:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:54,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:46:54,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:46:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:46:54,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:46:54,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:46:54,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789104160] [2021-12-07 01:46:54,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789104160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:54,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:54,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:46:54,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849027401] [2021-12-07 01:46:54,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:54,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:46:54,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:46:54,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:46:54,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:46:54,601 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:54,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:54,798 INFO L93 Difference]: Finished difference Result 99 states and 131 transitions. [2021-12-07 01:46:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:46:54,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 01:46:54,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:54,799 INFO L225 Difference]: With dead ends: 99 [2021-12-07 01:46:54,799 INFO L226 Difference]: Without dead ends: 63 [2021-12-07 01:46:54,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:46:54,800 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:54,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-07 01:46:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-07 01:46:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-07 01:46:54,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 62 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:54,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2021-12-07 01:46:54,806 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 30 [2021-12-07 01:46:54,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:54,806 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2021-12-07 01:46:54,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2021-12-07 01:46:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 01:46:54,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:54,807 INFO L514 BasicCegarLoop]: 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] [2021-12-07 01:46:54,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-07 01:46:55,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:46:55,009 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:46:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash 311933747, now seen corresponding path program 1 times [2021-12-07 01:46:55,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:46:55,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307065099] [2021-12-07 01:46:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:55,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:46:55,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:46:55,014 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:46:55,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-07 01:46:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:55,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:46:55,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:46:55,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:46:55,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:46:55,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:46:55,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307065099] [2021-12-07 01:46:55,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307065099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:46:55,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:46:55,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 01:46:55,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694162917] [2021-12-07 01:46:55,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:46:55,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 01:46:55,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:46:55,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 01:46:55,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:46:55,201 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:55,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:46:55,292 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2021-12-07 01:46:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 01:46:55,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 01:46:55,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:46:55,292 INFO L225 Difference]: With dead ends: 88 [2021-12-07 01:46:55,293 INFO L226 Difference]: Without dead ends: 56 [2021-12-07 01:46:55,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 01:46:55,293 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 01:46:55,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 01:46:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-12-07 01:46:55,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-12-07 01:46:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2021-12-07 01:46:55,298 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 30 [2021-12-07 01:46:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:46:55,299 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2021-12-07 01:46:55,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:46:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2021-12-07 01:46:55,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-07 01:46:55,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:46:55,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:46:55,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-07 01:46:55,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:46:55,501 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:46:55,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:46:55,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1868306222, now seen corresponding path program 1 times [2021-12-07 01:46:55,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:46:55,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993548328] [2021-12-07 01:46:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:46:55,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:46:55,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:46:55,504 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:46:55,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-07 01:46:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:46:55,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-07 01:46:55,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:48:39,392 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~main__S~0#1| |ULTIMATE.start_main_~main__D~0#1|)) .cse0)) (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__S~0#1|) .cse0) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (fp.geq .cse1 (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~main__R~0#1| |ULTIMATE.start_main_~main__D~0#1|)))) is different from false [2021-12-07 01:48:41,406 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~main__S~0#1| |ULTIMATE.start_main_~main__D~0#1|)) .cse0)) (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__S~0#1|) .cse0) (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (fp.geq .cse1 (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~main__R~0#1| |ULTIMATE.start_main_~main__D~0#1|)))) is different from true [2021-12-07 01:51:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:51:00,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:51:00,647 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:51:00,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993548328] [2021-12-07 01:51:00,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993548328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:51:00,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:51:00,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-07 01:51:00,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105954296] [2021-12-07 01:51:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:51:00,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-07 01:51:00,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:51:00,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-07 01:51:00,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=37, Unknown=8, NotChecked=14, Total=90 [2021-12-07 01:51:00,648 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:51:15,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:17,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:19,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:21,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:51:39,638 WARN L227 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:52:15,232 WARN L227 SmtUtils]: Spent 16.16s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:52:17,268 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__S~0#1|)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 129.0)) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode |c_ULTIMATE.start_main_~main__D~0#1|))) (and (fp.geq .cse0 (fp.neg .cse1)) (exists ((|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24))) (let ((.cse2 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 129.0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__D~0#1|))) (and (not (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~main__S~0#1| |ULTIMATE.start_main_~main__D~0#1|)) .cse2)) (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~main__S~0#1|) .cse2) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 16.0)) (fp.geq .cse3 (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~main__R~0#1| |ULTIMATE.start_main_~main__D~0#1|)))) (fp.leq .cse0 .cse1) (fp.leq .cse4 ((_ to_fp 11 53) c_currentRoundingMode 16.0)) (exists ((|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__R~0#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_main_~main__D~0#1| (_ FloatingPoint 8 24))) (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode |ULTIMATE.start_main_~main__S~0#1|)) (.cse6 ((_ to_fp 11 53) c_currentRoundingMode 129.0)) (.cse7 ((_ to_fp 11 53) c_currentRoundingMode |ULTIMATE.start_main_~main__D~0#1|))) (and (fp.geq .cse5 (fp.neg .cse6)) (fp.leq .cse5 .cse6) (fp.leq .cse7 ((_ to_fp 11 53) c_currentRoundingMode 16.0)) (= |c_ULTIMATE.start_main_~main__Y~0#1| (fp.add c_currentRoundingMode |ULTIMATE.start_main_~main__S~0#1| |ULTIMATE.start_main_~main__D~0#1|)) (fp.geq .cse7 (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~main__R~0#1| |ULTIMATE.start_main_~main__D~0#1|)))) (fp.geq .cse4 (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-12-07 01:53:00,814 WARN L227 SmtUtils]: Spent 9.27s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-07 01:53:07,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:53:07,778 INFO L93 Difference]: Finished difference Result 140 states and 158 transitions. [2021-12-07 01:53:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-07 01:53:07,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-12-07 01:53:07,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:53:07,784 INFO L225 Difference]: With dead ends: 140 [2021-12-07 01:53:07,784 INFO L226 Difference]: Without dead ends: 138 [2021-12-07 01:53:07,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 129.7s TimeCoverageRelationStatistics Valid=67, Invalid=93, Unknown=30, NotChecked=50, Total=240 [2021-12-07 01:53:07,785 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 103 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2021-12-07 01:53:07,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 100 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 4 Unknown, 183 Unchecked, 30.8s Time] [2021-12-07 01:53:07,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-12-07 01:53:07,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 92. [2021-12-07 01:53:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 91 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:53:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2021-12-07 01:53:07,797 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 108 transitions. Word has length 31 [2021-12-07 01:53:07,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:53:07,797 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 108 transitions. [2021-12-07 01:53:07,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:53:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2021-12-07 01:53:07,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-07 01:53:07,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:53:07,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:53:07,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-07 01:53:07,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:53:08,001 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:53:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:53:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash 288009802, now seen corresponding path program 1 times [2021-12-07 01:53:08,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:53:08,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206196195] [2021-12-07 01:53:08,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:53:08,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:53:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:53:08,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:53:08,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0561e3e3-37c5-4f20-b28c-1b4d5ea3942d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-07 01:53:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:53:08,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 01:53:08,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:54:46,931 WARN L227 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)