./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8 --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 8027421f69536d6ab05b283a89e3cb3b4d544d6c464b60eed1661be7de5f3901 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:13:24,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:13:24,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:13:24,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:13:24,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:13:24,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:13:24,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:13:24,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:13:24,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:13:24,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:13:24,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:13:24,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:13:24,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:13:24,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:13:24,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:13:24,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:13:24,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:13:24,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:13:24,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:13:24,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:13:24,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:13:24,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:13:24,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:13:24,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:13:24,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:13:24,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:13:24,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:13:24,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:13:24,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:13:24,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:13:24,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:13:24,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:13:24,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:13:24,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:13:24,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:13:24,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:13:24,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:13:24,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:13:24,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:13:24,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:13:24,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:13:24,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:13:24,500 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:13:24,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:13:24,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:13:24,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:13:24,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:13:24,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:13:24,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:13:24,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:13:24,501 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:13:24,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:13:24,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:13:24,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:13:24,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:13:24,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:13:24,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:13:24,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:13:24,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:13:24,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:13:24,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:13:24,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:13:24,505 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:13:24,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:13:24,505 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:13:24,509 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8027421f69536d6ab05b283a89e3cb3b4d544d6c464b60eed1661be7de5f3901 [2022-12-13 21:13:24,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:13:24,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:13:24,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:13:24,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:13:24,685 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:13:24,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c [2022-12-13 21:13:27,165 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:13:27,327 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:13:27,327 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c [2022-12-13 21:13:27,333 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data/b537f5b09/87e9653b122149399ba2ca069cf54101/FLAGb8c1c4fa6 [2022-12-13 21:13:27,726 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data/b537f5b09/87e9653b122149399ba2ca069cf54101 [2022-12-13 21:13:27,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:13:27,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:13:27,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:13:27,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:13:27,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:13:27,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:27,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8345ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27, skipping insertion in model container [2022-12-13 21:13:27,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:27,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:13:27,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:13:27,877 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[1997,2010] [2022-12-13 21:13:27,881 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[2366,2379] [2022-12-13 21:13:27,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:13:27,917 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:13:27,927 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[1997,2010] [2022-12-13 21:13:27,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[2366,2379] [2022-12-13 21:13:27,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:13:27,959 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:13:27,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27 WrapperNode [2022-12-13 21:13:27,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:13:27,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:13:27,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:13:27,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:13:27,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:27,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:27,993 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 222 [2022-12-13 21:13:27,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:13:27,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:13:27,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:13:27,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:13:28,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:13:28,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:13:28,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:13:28,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:13:28,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (1/1) ... [2022-12-13 21:13:28,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:13:28,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:13:28,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:13:28,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:13:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:13:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 21:13:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 21:13:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:13:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:13:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:13:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 21:13:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 21:13:28,143 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:13:28,145 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:13:28,413 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:13:28,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:13:28,419 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:13:28,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:13:28 BoogieIcfgContainer [2022-12-13 21:13:28,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:13:28,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:13:28,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:13:28,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:13:28,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:13:27" (1/3) ... [2022-12-13 21:13:28,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7483edf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:13:28, skipping insertion in model container [2022-12-13 21:13:28,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:27" (2/3) ... [2022-12-13 21:13:28,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7483edf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:13:28, skipping insertion in model container [2022-12-13 21:13:28,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:13:28" (3/3) ... [2022-12-13 21:13:28,427 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_1-3a.c.cil.c [2022-12-13 21:13:28,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:13:28,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:13:28,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:13:28,484 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3237b49b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:13:28,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 21:13:28,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 89 states have (on average 1.6179775280898876) internal successors, (144), 93 states have internal predecessors, (144), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-13 21:13:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:13:28,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:13:28,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:13:28,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:13:28,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:13:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2022-12-13 21:13:28,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:13:28,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638039637] [2022-12-13 21:13:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:13:28,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:13:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:13:28,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:13:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:13:28,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:13:28,595 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:13:28,596 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 21:13:28,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 21:13:28,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:13:28,601 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:13:28,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:13:28,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:13:28 BoogieIcfgContainer [2022-12-13 21:13:28,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:13:28,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:13:28,617 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:13:28,617 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:13:28,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:13:28" (3/4) ... [2022-12-13 21:13:28,619 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:13:28,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:13:28,620 INFO L158 Benchmark]: Toolchain (without parser) took 890.55ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 54.3MB in the beginning and 92.0MB in the end (delta: -37.7MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-12-13 21:13:28,621 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:13:28,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.58ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 54.1MB in the beginning and 133.9MB in the end (delta: -79.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-13 21:13:28,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 130.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:13:28,622 INFO L158 Benchmark]: Boogie Preprocessor took 23.49ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 128.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:13:28,622 INFO L158 Benchmark]: RCFGBuilder took 403.14ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 106.6MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 21:13:28,622 INFO L158 Benchmark]: TraceAbstraction took 193.70ms. Allocated memory is still 167.8MB. Free memory was 105.8MB in the beginning and 92.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 21:13:28,623 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 167.8MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:13:28,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.58ms. Allocated memory was 107.0MB in the beginning and 167.8MB in the end (delta: 60.8MB). Free memory was 54.1MB in the beginning and 133.9MB in the end (delta: -79.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 130.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.49ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 128.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.14ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 106.6MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 193.70ms. Allocated memory is still 167.8MB. Free memory was 105.8MB in the beginning and 92.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 167.8MB. Free memory is still 92.0MB. 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: 48]: 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L402] COND TRUE __VERIFIER_nondet_int() [L403] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.399f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: 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 3 procedures, 103 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred 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, 7 NumberOfCodeBlocks, 7 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 [2022-12-13 21:13:28,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8 --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 8027421f69536d6ab05b283a89e3cb3b4d544d6c464b60eed1661be7de5f3901 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:13:30,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:13:30,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:13:30,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:13:30,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:13:30,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:13:30,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:13:30,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:13:30,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:13:30,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:13:30,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:13:30,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:13:30,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:13:30,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:13:30,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:13:30,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:13:30,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:13:30,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:13:30,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:13:30,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:13:30,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:13:30,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:13:30,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:13:30,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:13:30,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:13:30,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:13:30,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:13:30,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:13:30,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:13:30,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:13:30,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:13:30,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:13:30,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:13:30,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:13:30,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:13:30,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:13:30,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:13:30,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:13:30,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:13:30,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:13:30,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:13:30,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 21:13:30,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:13:30,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:13:30,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:13:30,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:13:30,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:13:30,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:13:30,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:13:30,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:13:30,410 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:13:30,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:13:30,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:13:30,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:13:30,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:13:30,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:13:30,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:13:30,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:13:30,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:13:30,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:13:30,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:13:30,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:13:30,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:13:30,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:13:30,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:13:30,414 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8027421f69536d6ab05b283a89e3cb3b4d544d6c464b60eed1661be7de5f3901 [2022-12-13 21:13:30,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:13:30,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:13:30,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:13:30,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:13:30,639 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:13:30,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c [2022-12-13 21:13:33,301 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:13:33,499 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:13:33,499 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c [2022-12-13 21:13:33,508 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data/520a95714/ec35872cacfc46e9af1c87fa1cd1c1e7/FLAG96f3cc816 [2022-12-13 21:13:33,522 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/data/520a95714/ec35872cacfc46e9af1c87fa1cd1c1e7 [2022-12-13 21:13:33,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:13:33,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:13:33,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:13:33,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:13:33,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:13:33,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f5d6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33, skipping insertion in model container [2022-12-13 21:13:33,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:13:33,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:13:33,695 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[1997,2010] [2022-12-13 21:13:33,702 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[2366,2379] [2022-12-13 21:13:33,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:13:33,759 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:13:33,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[1997,2010] [2022-12-13 21:13:33,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/sv-benchmarks/c/combinations/square_6+soft_float_1-3a.c.cil.c[2366,2379] [2022-12-13 21:13:33,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:13:33,815 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:13:33,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33 WrapperNode [2022-12-13 21:13:33,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:13:33,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:13:33,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:13:33,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:13:33,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,855 INFO L138 Inliner]: procedures = 28, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 164 [2022-12-13 21:13:33,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:13:33,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:13:33,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:13:33,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:13:33,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:13:33,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:13:33,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:13:33,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:13:33,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (1/1) ... [2022-12-13 21:13:33,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:13:33,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:13:33,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:13:33,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 21:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 21:13:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 21:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:13:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:13:33,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 21:13:33,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 21:13:34,028 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:13:34,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:13:36,442 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:13:36,448 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:13:36,448 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:13:36,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:13:36 BoogieIcfgContainer [2022-12-13 21:13:36,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:13:36,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:13:36,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:13:36,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:13:36,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:13:33" (1/3) ... [2022-12-13 21:13:36,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77550ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:13:36, skipping insertion in model container [2022-12-13 21:13:36,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:13:33" (2/3) ... [2022-12-13 21:13:36,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77550ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:13:36, skipping insertion in model container [2022-12-13 21:13:36,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:13:36" (3/3) ... [2022-12-13 21:13:36,455 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_1-3a.c.cil.c [2022-12-13 21:13:36,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:13:36,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:13:36,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:13:36,505 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@130bb419, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:13:36,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 21:13:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-13 21:13:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:13:36,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:13:36,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:13:36,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:13:36,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:13:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-12-13 21:13:36,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:13:36,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984520664] [2022-12-13 21:13:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:13:36,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:13:36,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:13:36,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:13:36,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 21:13:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:36,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:13:36,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:13:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:13:36,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:13:36,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:13:36,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984520664] [2022-12-13 21:13:37,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984520664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:13:37,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:13:37,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:13:37,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449005596] [2022-12-13 21:13:37,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:13:37,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:13:37,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:13:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:13:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:13:37,026 INFO L87 Difference]: Start difference. First operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:13:37,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:13:37,048 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2022-12-13 21:13:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:13:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 21:13:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:13:37,055 INFO L225 Difference]: With dead ends: 157 [2022-12-13 21:13:37,055 INFO L226 Difference]: Without dead ends: 74 [2022-12-13 21:13:37,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:13:37,060 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:13:37,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:13:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-12-13 21:13:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-12-13 21:13:37,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 64 states have internal predecessors, (91), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 21:13:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-12-13 21:13:37,089 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2022-12-13 21:13:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:13:37,089 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-12-13 21:13:37,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:13:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2022-12-13 21:13:37,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 21:13:37,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:13:37,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:13:37,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:13:37,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:13:37,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:13:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:13:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-12-13 21:13:37,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:13:37,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92836627] [2022-12-13 21:13:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:13:37,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:13:37,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:13:37,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:13:37,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 21:23:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:23:16,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:23:16,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:23:31,174 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-13 21:24:04,795 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 1399.0 1000.0)))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from false [2022-12-13 21:24:06,837 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 1399.0 1000.0)))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from true [2022-12-13 21:24:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:06,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:06,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:06,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92836627] [2022-12-13 21:24:06,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92836627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:06,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:06,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:24:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641662230] [2022-12-13 21:24:06,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:06,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:24:06,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:06,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:24:06,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2022-12-13 21:24:06,842 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:09,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 21:24:09,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:09,585 INFO L93 Difference]: Finished difference Result 74 states and 108 transitions. [2022-12-13 21:24:09,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:24:09,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 21:24:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:09,587 INFO L225 Difference]: With dead ends: 74 [2022-12-13 21:24:09,587 INFO L226 Difference]: Without dead ends: 69 [2022-12-13 21:24:09,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=18, Invalid=17, Unknown=3, NotChecked=18, Total=56 [2022-12-13 21:24:09,589 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 102 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 211 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:09,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 273 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 1 Unknown, 211 Unchecked, 2.5s Time] [2022-12-13 21:24:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-13 21:24:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-12-13 21:24:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 59 states have internal predecessors, (86), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 21:24:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 103 transitions. [2022-12-13 21:24:09,598 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 103 transitions. Word has length 7 [2022-12-13 21:24:09,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:09,598 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 103 transitions. [2022-12-13 21:24:09,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:09,599 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 103 transitions. [2022-12-13 21:24:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 21:24:09,600 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:09,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:09,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 21:24:09,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:09,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:09,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1413922597, now seen corresponding path program 1 times [2022-12-13 21:24:09,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:09,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470320091] [2022-12-13 21:24:09,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:09,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:09,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:09,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:09,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 21:24:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:09,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 21:24:09,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:10,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:24:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:10,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:10,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470320091] [2022-12-13 21:24:10,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470320091] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:24:10,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:24:10,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-12-13 21:24:10,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058590887] [2022-12-13 21:24:10,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:24:10,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:24:10,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:10,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:24:10,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:24:10,431 INFO L87 Difference]: Start difference. First operand 69 states and 103 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:10,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:10,821 INFO L93 Difference]: Finished difference Result 162 states and 253 transitions. [2022-12-13 21:24:10,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:24:10,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-12-13 21:24:10,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:10,824 INFO L225 Difference]: With dead ends: 162 [2022-12-13 21:24:10,824 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 21:24:10,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:24:10,825 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 57 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:10,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 707 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:24:10,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 21:24:10,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 81. [2022-12-13 21:24:10,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 66 states have (on average 1.4545454545454546) internal successors, (96), 68 states have internal predecessors, (96), 11 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-12-13 21:24:10,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 122 transitions. [2022-12-13 21:24:10,844 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 122 transitions. Word has length 33 [2022-12-13 21:24:10,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:10,845 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 122 transitions. [2022-12-13 21:24:10,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:10,845 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 122 transitions. [2022-12-13 21:24:10,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-13 21:24:10,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:10,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:10,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 21:24:11,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:11,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:11,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1578065669, now seen corresponding path program 1 times [2022-12-13 21:24:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:11,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627231545] [2022-12-13 21:24:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:11,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:11,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:11,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 21:24:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:11,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 21:24:11,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:11,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:24:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:11,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:11,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627231545] [2022-12-13 21:24:11,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627231545] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:24:11,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:24:11,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-12-13 21:24:11,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60323667] [2022-12-13 21:24:11,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:24:11,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:24:11,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:11,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:24:11,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:24:11,596 INFO L87 Difference]: Start difference. First operand 81 states and 122 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:12,103 INFO L93 Difference]: Finished difference Result 179 states and 276 transitions. [2022-12-13 21:24:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:24:12,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-12-13 21:24:12,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:12,105 INFO L225 Difference]: With dead ends: 179 [2022-12-13 21:24:12,105 INFO L226 Difference]: Without dead ends: 132 [2022-12-13 21:24:12,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:24:12,107 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 55 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:12,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 465 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 21:24:12,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-13 21:24:12,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 124. [2022-12-13 21:24:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.4313725490196079) internal successors, (146), 103 states have internal predecessors, (146), 18 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (24), 20 states have call predecessors, (24), 17 states have call successors, (24) [2022-12-13 21:24:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 188 transitions. [2022-12-13 21:24:12,122 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 188 transitions. Word has length 37 [2022-12-13 21:24:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:12,123 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 188 transitions. [2022-12-13 21:24:12,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 188 transitions. [2022-12-13 21:24:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-13 21:24:12,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:12,125 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:12,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 21:24:12,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:12,327 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1319900231, now seen corresponding path program 1 times [2022-12-13 21:24:12,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:12,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524856034] [2022-12-13 21:24:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:12,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:12,334 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:12,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 21:24:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:12,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 21:24:12,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:12,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:12,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:12,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524856034] [2022-12-13 21:24:12,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524856034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:12,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:12,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:24:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613617787] [2022-12-13 21:24:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:12,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:24:12,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:24:12,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:24:12,686 INFO L87 Difference]: Start difference. First operand 124 states and 188 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:13,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:13,218 INFO L93 Difference]: Finished difference Result 280 states and 429 transitions. [2022-12-13 21:24:13,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:24:13,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-12-13 21:24:13,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:13,220 INFO L225 Difference]: With dead ends: 280 [2022-12-13 21:24:13,220 INFO L226 Difference]: Without dead ends: 210 [2022-12-13 21:24:13,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:24:13,221 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 52 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:13,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 462 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 21:24:13,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-13 21:24:13,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2022-12-13 21:24:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 174 states have (on average 1.4252873563218391) internal successors, (248), 173 states have internal predecessors, (248), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 34 states have call predecessors, (34), 27 states have call successors, (34) [2022-12-13 21:24:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 310 transitions. [2022-12-13 21:24:13,235 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 310 transitions. Word has length 37 [2022-12-13 21:24:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:13,235 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 310 transitions. [2022-12-13 21:24:13,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:13,235 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 310 transitions. [2022-12-13 21:24:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-13 21:24:13,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:13,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:13,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 21:24:13,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:13,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash -639841861, now seen corresponding path program 1 times [2022-12-13 21:24:13,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:13,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448314643] [2022-12-13 21:24:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:13,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:13,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:13,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:13,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 21:24:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:13,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:24:13,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:13,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:13,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:13,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448314643] [2022-12-13 21:24:13,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448314643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:13,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:13,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:24:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260981510] [2022-12-13 21:24:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:13,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:24:13,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:13,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:24:13,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:24:13,884 INFO L87 Difference]: Start difference. First operand 206 states and 310 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:14,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:14,561 INFO L93 Difference]: Finished difference Result 294 states and 444 transitions. [2022-12-13 21:24:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:24:14,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-12-13 21:24:14,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:14,563 INFO L225 Difference]: With dead ends: 294 [2022-12-13 21:24:14,563 INFO L226 Difference]: Without dead ends: 230 [2022-12-13 21:24:14,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:24:14,564 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 105 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:14,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 545 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 21:24:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-12-13 21:24:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 188. [2022-12-13 21:24:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3950617283950617) internal successors, (226), 161 states have internal predecessors, (226), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (28), 28 states have call predecessors, (28), 21 states have call successors, (28) [2022-12-13 21:24:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 276 transitions. [2022-12-13 21:24:14,576 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 276 transitions. Word has length 37 [2022-12-13 21:24:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:14,576 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 276 transitions. [2022-12-13 21:24:14,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:14,576 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 276 transitions. [2022-12-13 21:24:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-13 21:24:14,577 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:14,577 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:14,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 21:24:14,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:14,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:14,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash 321822244, now seen corresponding path program 1 times [2022-12-13 21:24:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:14,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382608514] [2022-12-13 21:24:14,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:14,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:14,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:14,781 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:14,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 21:24:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:14,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 21:24:14,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:15,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:24:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:15,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:15,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382608514] [2022-12-13 21:24:15,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382608514] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:24:15,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:24:15,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-12-13 21:24:15,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275684252] [2022-12-13 21:24:15,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:24:15,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 21:24:15,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:24:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:24:15,578 INFO L87 Difference]: Start difference. First operand 188 states and 276 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:16,582 INFO L93 Difference]: Finished difference Result 276 states and 412 transitions. [2022-12-13 21:24:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:24:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2022-12-13 21:24:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:16,585 INFO L225 Difference]: With dead ends: 276 [2022-12-13 21:24:16,585 INFO L226 Difference]: Without dead ends: 238 [2022-12-13 21:24:16,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:24:16,586 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 196 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:16,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 652 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 21:24:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-12-13 21:24:16,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 179. [2022-12-13 21:24:16,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 156 states have (on average 1.3846153846153846) internal successors, (216), 155 states have internal predecessors, (216), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (25), 25 states have call predecessors, (25), 18 states have call successors, (25) [2022-12-13 21:24:16,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 260 transitions. [2022-12-13 21:24:16,600 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 260 transitions. Word has length 41 [2022-12-13 21:24:16,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:16,600 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 260 transitions. [2022-12-13 21:24:16,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 260 transitions. [2022-12-13 21:24:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 21:24:16,602 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:16,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2022-12-13 21:24:16,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 21:24:16,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:16,802 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:16,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash 64679693, now seen corresponding path program 1 times [2022-12-13 21:24:16,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:16,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360692267] [2022-12-13 21:24:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:16,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:16,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:16,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:16,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 21:24:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:16,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:24:16,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 21:24:17,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:17,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:17,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360692267] [2022-12-13 21:24:17,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360692267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:17,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:17,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:24:17,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151432041] [2022-12-13 21:24:17,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:17,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:24:17,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:17,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:24:17,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:24:17,001 INFO L87 Difference]: Start difference. First operand 179 states and 260 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:17,134 INFO L93 Difference]: Finished difference Result 332 states and 490 transitions. [2022-12-13 21:24:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:24:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-12-13 21:24:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:17,139 INFO L225 Difference]: With dead ends: 332 [2022-12-13 21:24:17,139 INFO L226 Difference]: Without dead ends: 266 [2022-12-13 21:24:17,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:17,139 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 66 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:17,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:24:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-12-13 21:24:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 234. [2022-12-13 21:24:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 208 states have (on average 1.3461538461538463) internal successors, (280), 207 states have internal predecessors, (280), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (28), 28 states have call predecessors, (28), 21 states have call successors, (28) [2022-12-13 21:24:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 330 transitions. [2022-12-13 21:24:17,152 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 330 transitions. Word has length 44 [2022-12-13 21:24:17,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:17,152 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 330 transitions. [2022-12-13 21:24:17,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:17,153 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 330 transitions. [2022-12-13 21:24:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 21:24:17,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:17,153 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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, 1, 1] [2022-12-13 21:24:17,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 21:24:17,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:17,354 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1143994910, now seen corresponding path program 1 times [2022-12-13 21:24:17,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:17,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004791750] [2022-12-13 21:24:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:17,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:17,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:17,356 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:17,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 21:24:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:17,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:24:17,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 21:24:17,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:17,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:17,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004791750] [2022-12-13 21:24:17,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004791750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:17,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:17,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:24:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379103107] [2022-12-13 21:24:17,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:17,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:24:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:17,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:24:17,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:24:17,528 INFO L87 Difference]: Start difference. First operand 234 states and 330 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:17,853 INFO L93 Difference]: Finished difference Result 409 states and 574 transitions. [2022-12-13 21:24:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:24:17,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2022-12-13 21:24:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:17,855 INFO L225 Difference]: With dead ends: 409 [2022-12-13 21:24:17,855 INFO L226 Difference]: Without dead ends: 179 [2022-12-13 21:24:17,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:17,857 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 27 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:17,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 253 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:24:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-13 21:24:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2022-12-13 21:24:17,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 147 states have (on average 1.3061224489795917) internal successors, (192), 149 states have internal predecessors, (192), 15 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (20), 17 states have call predecessors, (20), 14 states have call successors, (20) [2022-12-13 21:24:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 227 transitions. [2022-12-13 21:24:17,875 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 227 transitions. Word has length 44 [2022-12-13 21:24:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:17,876 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 227 transitions. [2022-12-13 21:24:17,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 21:24:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 227 transitions. [2022-12-13 21:24:17,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 21:24:17,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:17,877 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2022-12-13 21:24:17,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 21:24:18,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:18,078 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:18,079 INFO L85 PathProgramCache]: Analyzing trace with hash -610339590, now seen corresponding path program 1 times [2022-12-13 21:24:18,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:18,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144150550] [2022-12-13 21:24:18,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:18,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:18,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:18,081 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:18,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 21:24:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:18,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 21:24:18,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 21:24:19,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:24:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 21:24:19,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:19,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144150550] [2022-12-13 21:24:19,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144150550] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 21:24:19,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:24:19,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-13 21:24:19,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575412495] [2022-12-13 21:24:19,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:19,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:24:19,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:19,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:24:19,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:24:19,818 INFO L87 Difference]: Start difference. First operand 167 states and 227 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:21,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:21,698 INFO L93 Difference]: Finished difference Result 317 states and 460 transitions. [2022-12-13 21:24:21,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:24:21,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-12-13 21:24:21,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:21,700 INFO L225 Difference]: With dead ends: 317 [2022-12-13 21:24:21,700 INFO L226 Difference]: Without dead ends: 281 [2022-12-13 21:24:21,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-12-13 21:24:21,701 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 188 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:21,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 501 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 21:24:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-12-13 21:24:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 205. [2022-12-13 21:24:21,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 21 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (26), 23 states have call predecessors, (26), 20 states have call successors, (26) [2022-12-13 21:24:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 280 transitions. [2022-12-13 21:24:21,713 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 280 transitions. Word has length 45 [2022-12-13 21:24:21,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:21,713 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 280 transitions. [2022-12-13 21:24:21,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:21,713 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 280 transitions. [2022-12-13 21:24:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 21:24:21,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:21,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2022-12-13 21:24:21,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 21:24:21,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:21,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:21,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:21,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1164667772, now seen corresponding path program 1 times [2022-12-13 21:24:21,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:21,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815894612] [2022-12-13 21:24:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:21,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:21,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:21,922 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:21,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 21:24:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:22,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:24:22,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 21:24:22,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:22,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815894612] [2022-12-13 21:24:22,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815894612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:22,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:22,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:24:22,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053809972] [2022-12-13 21:24:22,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:22,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:24:22,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:24:22,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:22,143 INFO L87 Difference]: Start difference. First operand 205 states and 280 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:22,322 INFO L93 Difference]: Finished difference Result 212 states and 286 transitions. [2022-12-13 21:24:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:24:22,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-12-13 21:24:22,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:22,324 INFO L225 Difference]: With dead ends: 212 [2022-12-13 21:24:22,324 INFO L226 Difference]: Without dead ends: 205 [2022-12-13 21:24:22,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:24:22,325 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 5 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:22,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 384 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:24:22,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-12-13 21:24:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-12-13 21:24:22,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 179 states have (on average 1.2849162011173185) internal successors, (230), 182 states have internal predecessors, (230), 21 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (26), 23 states have call predecessors, (26), 20 states have call successors, (26) [2022-12-13 21:24:22,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2022-12-13 21:24:22,338 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 45 [2022-12-13 21:24:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:22,338 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2022-12-13 21:24:22,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2022-12-13 21:24:22,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 21:24:22,339 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:22,339 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:22,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 21:24:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:22,540 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:22,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -617643621, now seen corresponding path program 1 times [2022-12-13 21:24:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:22,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036140263] [2022-12-13 21:24:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:22,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:22,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:22,546 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:22,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 21:24:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:22,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 21:24:22,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 21:24:23,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:23,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:23,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036140263] [2022-12-13 21:24:23,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036140263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:23,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:23,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:24:23,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209726489] [2022-12-13 21:24:23,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:23,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:24:23,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:24:23,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:24:23,006 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:25,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 21:24:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:25,660 INFO L93 Difference]: Finished difference Result 256 states and 352 transitions. [2022-12-13 21:24:25,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:24:25,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-12-13 21:24:25,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:25,663 INFO L225 Difference]: With dead ends: 256 [2022-12-13 21:24:25,663 INFO L226 Difference]: Without dead ends: 254 [2022-12-13 21:24:25,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:24:25,667 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 47 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:25,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 602 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 21:24:25,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-12-13 21:24:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 209. [2022-12-13 21:24:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 182 states have (on average 1.2802197802197801) internal successors, (233), 185 states have internal predecessors, (233), 21 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (26), 23 states have call predecessors, (26), 20 states have call successors, (26) [2022-12-13 21:24:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2022-12-13 21:24:25,683 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 45 [2022-12-13 21:24:25,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:25,683 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2022-12-13 21:24:25,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:25,683 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2022-12-13 21:24:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 21:24:25,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:25,684 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 21:24:25,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:25,885 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:25,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,885 INFO L85 PathProgramCache]: Analyzing trace with hash -560385319, now seen corresponding path program 1 times [2022-12-13 21:24:25,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:25,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400313851] [2022-12-13 21:24:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:25,888 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:25,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-13 21:24:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:25,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:24:25,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 21:24:26,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:26,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:26,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400313851] [2022-12-13 21:24:26,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400313851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:26,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:26,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:24:26,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13593891] [2022-12-13 21:24:26,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:26,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:24:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:26,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:24:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:24:26,313 INFO L87 Difference]: Start difference. First operand 209 states and 280 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:28,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 21:24:28,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:28,816 INFO L93 Difference]: Finished difference Result 215 states and 285 transitions. [2022-12-13 21:24:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:24:28,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-12-13 21:24:28,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:28,818 INFO L225 Difference]: With dead ends: 215 [2022-12-13 21:24:28,818 INFO L226 Difference]: Without dead ends: 213 [2022-12-13 21:24:28,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:24:28,818 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 47 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:28,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 414 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 21:24:28,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-12-13 21:24:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-12-13 21:24:28,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 185 states have (on average 1.2756756756756757) internal successors, (236), 188 states have internal predecessors, (236), 21 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (26), 23 states have call predecessors, (26), 20 states have call successors, (26) [2022-12-13 21:24:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 283 transitions. [2022-12-13 21:24:28,832 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 283 transitions. Word has length 45 [2022-12-13 21:24:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:28,832 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 283 transitions. [2022-12-13 21:24:28,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:28,832 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 283 transitions. [2022-12-13 21:24:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 21:24:28,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:28,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 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, 1, 1, 1, 1] [2022-12-13 21:24:28,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-12-13 21:24:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:29,034 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:29,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1322710928, now seen corresponding path program 1 times [2022-12-13 21:24:29,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:29,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054818456] [2022-12-13 21:24:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:29,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:29,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:29,040 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:29,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-13 21:24:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:29,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:24:29,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:29,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 21:24:29,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:29,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:29,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054818456] [2022-12-13 21:24:29,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054818456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:29,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:29,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:24:29,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970218862] [2022-12-13 21:24:29,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:29,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:24:29,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:29,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:24:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:24:29,282 INFO L87 Difference]: Start difference. First operand 213 states and 283 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:29,425 INFO L93 Difference]: Finished difference Result 352 states and 482 transitions. [2022-12-13 21:24:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:24:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-12-13 21:24:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:29,426 INFO L225 Difference]: With dead ends: 352 [2022-12-13 21:24:29,427 INFO L226 Difference]: Without dead ends: 300 [2022-12-13 21:24:29,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:29,428 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 75 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:29,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 307 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:24:29,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-12-13 21:24:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 232. [2022-12-13 21:24:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 201 states have (on average 1.2835820895522387) internal successors, (258), 203 states have internal predecessors, (258), 24 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (29), 26 states have call predecessors, (29), 23 states have call successors, (29) [2022-12-13 21:24:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 311 transitions. [2022-12-13 21:24:29,453 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 311 transitions. Word has length 46 [2022-12-13 21:24:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:29,454 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 311 transitions. [2022-12-13 21:24:29,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 311 transitions. [2022-12-13 21:24:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 21:24:29,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:29,455 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:29,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-12-13 21:24:29,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:29,656 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:29,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:29,656 INFO L85 PathProgramCache]: Analyzing trace with hash -514674649, now seen corresponding path program 1 times [2022-12-13 21:24:29,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:29,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273596040] [2022-12-13 21:24:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:29,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:29,657 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:29,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-13 21:24:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:29,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:24:29,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 21:24:29,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:29,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:29,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273596040] [2022-12-13 21:24:29,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273596040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:29,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:29,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:24:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476527514] [2022-12-13 21:24:29,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:29,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:24:29,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:29,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:24:29,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:24:29,765 INFO L87 Difference]: Start difference. First operand 232 states and 311 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:29,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:29,865 INFO L93 Difference]: Finished difference Result 247 states and 327 transitions. [2022-12-13 21:24:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:24:29,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-12-13 21:24:29,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:29,867 INFO L225 Difference]: With dead ends: 247 [2022-12-13 21:24:29,867 INFO L226 Difference]: Without dead ends: 208 [2022-12-13 21:24:29,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:29,868 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 1 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:29,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 288 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:24:29,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-13 21:24:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-12-13 21:24:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 177 states have (on average 1.2994350282485876) internal successors, (230), 180 states have internal predecessors, (230), 24 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (27), 25 states have call predecessors, (27), 23 states have call successors, (27) [2022-12-13 21:24:29,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 281 transitions. [2022-12-13 21:24:29,890 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 281 transitions. Word has length 49 [2022-12-13 21:24:29,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:29,890 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 281 transitions. [2022-12-13 21:24:29,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:29,890 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 281 transitions. [2022-12-13 21:24:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 21:24:29,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:29,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:29,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-13 21:24:30,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:30,092 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash -627639643, now seen corresponding path program 1 times [2022-12-13 21:24:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:30,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880796682] [2022-12-13 21:24:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:30,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:30,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:30,093 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:30,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-13 21:24:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:30,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:24:30,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:24:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 21:24:30,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:24:30,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:24:30,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880796682] [2022-12-13 21:24:30,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880796682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:30,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:30,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:24:30,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044851146] [2022-12-13 21:24:30,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:30,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:24:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:24:30,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:24:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:30,298 INFO L87 Difference]: Start difference. First operand 208 states and 281 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:30,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:30,812 INFO L93 Difference]: Finished difference Result 335 states and 452 transitions. [2022-12-13 21:24:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:24:30,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-12-13 21:24:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:24:30,814 INFO L225 Difference]: With dead ends: 335 [2022-12-13 21:24:30,814 INFO L226 Difference]: Without dead ends: 293 [2022-12-13 21:24:30,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:24:30,815 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 180 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:24:30,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 438 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:24:30,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-12-13 21:24:30,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 208. [2022-12-13 21:24:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 177 states have (on average 1.2881355932203389) internal successors, (228), 180 states have internal predecessors, (228), 24 states have call successors, (24), 4 states have call predecessors, (24), 6 states have return successors, (27), 25 states have call predecessors, (27), 23 states have call successors, (27) [2022-12-13 21:24:30,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 279 transitions. [2022-12-13 21:24:30,832 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 279 transitions. Word has length 50 [2022-12-13 21:24:30,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:24:30,832 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 279 transitions. [2022-12-13 21:24:30,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 21:24:30,832 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 279 transitions. [2022-12-13 21:24:30,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 21:24:30,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:24:30,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:30,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-12-13 21:24:31,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:31,035 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:24:31,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:31,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1892770879, now seen corresponding path program 1 times [2022-12-13 21:24:31,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:24:31,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237429468] [2022-12-13 21:24:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:31,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:31,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:24:31,040 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:24:31,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-12-13 21:24:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:31,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:31,170 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 21:24:31,170 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:24:31,171 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 21:24:31,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 21:24:31,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-12-13 21:24:31,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:24:31,378 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:31,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:24:31,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:24:31 BoogieIcfgContainer [2022-12-13 21:24:31,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:24:31,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:24:31,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:24:31,422 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:24:31,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:13:36" (3/4) ... [2022-12-13 21:24:31,423 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 21:24:31,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:24:31,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:24:31,454 INFO L158 Benchmark]: Toolchain (without parser) took 657928.79ms. Allocated memory is still 81.8MB. Free memory was 60.0MB in the beginning and 29.0MB in the end (delta: 31.0MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,455 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:24:31,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.47ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 44.8MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.61ms. Allocated memory is still 81.8MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,455 INFO L158 Benchmark]: Boogie Preprocessor took 37.87ms. Allocated memory is still 81.8MB. Free memory was 42.7MB in the beginning and 62.1MB in the end (delta: -19.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,455 INFO L158 Benchmark]: RCFGBuilder took 2554.56ms. Allocated memory is still 81.8MB. Free memory was 62.1MB in the beginning and 43.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,455 INFO L158 Benchmark]: TraceAbstraction took 654970.16ms. Allocated memory is still 81.8MB. Free memory was 43.2MB in the beginning and 33.2MB in the end (delta: 10.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,456 INFO L158 Benchmark]: Witness Printer took 32.82ms. Allocated memory is still 81.8MB. Free memory was 33.2MB in the beginning and 29.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:24:31,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.47ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 44.8MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.61ms. Allocated memory is still 81.8MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.87ms. Allocated memory is still 81.8MB. Free memory was 42.7MB in the beginning and 62.1MB in the end (delta: -19.3MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2554.56ms. Allocated memory is still 81.8MB. Free memory was 62.1MB in the beginning and 43.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 654970.16ms. Allocated memory is still 81.8MB. Free memory was 43.2MB in the beginning and 33.2MB in the end (delta: 10.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 32.82ms. Allocated memory is still 81.8MB. Free memory was 33.2MB in the beginning and 29.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 60]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L402] COND FALSE !(__VERIFIER_nondet_int()) [L405] CALL main2() [L269] unsigned int a ; [L270] unsigned int ma = __VERIFIER_nondet_uint(); [L271] signed char ea = __VERIFIER_nondet_char(); [L272] unsigned int b ; [L273] unsigned int mb = __VERIFIER_nondet_uint(); [L274] signed char eb = __VERIFIER_nondet_char(); [L275] unsigned int r_add ; [L276] unsigned int zero ; [L277] int sa ; [L278] int sb ; [L279] int tmp ; [L280] int tmp___0 ; [L281] int tmp___1 ; [L282] int tmp___2 ; [L283] int tmp___3 ; [L284] int tmp___4 ; [L285] int tmp___5 ; [L286] int tmp___6 ; [L287] int tmp___7 ; [L288] int tmp___8 ; [L289] int tmp___9 ; [L290] int __retres23 ; [L294] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L72] COND TRUE ! m [L73] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L294] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L294] zero = base2flt(0, 0) [L295] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=2147483648, e=0, m=0, res=2147483648] [L123] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-2147483648, __retres4=2147483648, e=0, m=0, res=2147483648] [L295] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=-2147483648, ea=0, ma=16777216, zero=0] [L295] a = base2flt(ma, ea) [L296] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=64, \old(m)=16777216] [L68] unsigned int res ; [L69] unsigned int __retres4 ; VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L72] COND FALSE !(! m) VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L78] COND FALSE !(m < 1U << 24U) VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L100] COND TRUE 1 VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L102] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=64, \old(m)=16777216, e=64, m=16777216] [L119] m = m & ~ (1U << 24U) [L120] res = m | ((unsigned int )(e + 128) << 24U) [L121] __retres4 = res VAL [\old(e)=64, \old(m)=16777216, __retres4=3221225472, e=64, m=0, res=3221225472] [L123] return (__retres4); VAL [\old(e)=64, \old(m)=16777216, \result=-1073741824, __retres4=3221225472, e=64, m=0, res=3221225472] [L296] RET, EXPR base2flt(mb, eb) VAL [a=2147483648, base2flt(mb, eb)=-1073741824, ea=0, eb=64, ma=16777216, mb=16777216, zero=0] [L296] b = base2flt(mb, eb) [L298] COND FALSE !(a < zero) VAL [a=2147483648, b=3221225472, ea=0, eb=64, ma=16777216, mb=16777216, zero=0] [L301] COND TRUE a > zero [L302] tmp = 1 VAL [a=2147483648, b=3221225472, ea=0, eb=64, ma=16777216, mb=16777216, tmp=1, zero=0] [L306] sa = tmp VAL [a=2147483648, b=3221225472, ea=0, eb=64, ma=16777216, mb=16777216, sa=1, tmp=1, zero=0] [L308] COND FALSE !(b < zero) VAL [a=2147483648, b=3221225472, ea=0, eb=64, ma=16777216, mb=16777216, sa=1, tmp=1, zero=0] [L311] COND TRUE b > zero [L312] tmp___0 = 1 VAL [a=2147483648, b=3221225472, ea=0, eb=64, ma=16777216, mb=16777216, sa=1, tmp=1, tmp___0=1, zero=0] [L316] sb = tmp___0 VAL [a=2147483648, b=3221225472, ea=0, eb=64, ma=16777216, mb=16777216, sa=1, sb=1, tmp=1, tmp___0=1, zero=0] [L319] CALL addflt(a, b) [L127] unsigned int res ; [L128] unsigned int ma ; [L129] unsigned int mb ; [L130] unsigned int delta ; [L131] int ea ; [L132] int eb ; [L133] unsigned int tmp ; [L134] unsigned int __retres10 ; VAL [\old(a)=2147483648, \old(b)=3221225472, a=2147483648, b=3221225472] [L137] COND TRUE a < b [L138] tmp = a [L139] a = b [L140] b = tmp VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, tmp=2147483648] [L144] COND FALSE !(! b) [L151] ma = a & ((1U << 24U) - 1U) [L152] ea = (int )(a >> 24U) - 128 [L153] ma = ma | (1U << 24U) [L154] mb = b & ((1U << 24U) - 1U) [L155] eb = (int )(b >> 24U) - 128 [L156] mb = mb | (1U << 24U) VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, ea=64, eb=0, ma=16777216, mb=16777216, tmp=2147483648] [L157] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=1] [L59] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L157] RET __VERIFIER_assert(ea >= eb) VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, ea=64, eb=0, ma=16777216, mb=16777216, tmp=2147483648] [L158] delta = ea - eb VAL [\old(a)=2147483648, \old(b)=3221225472, a=3221225472, b=2147483648, delta=64, ea=64, eb=0, ma=16777216, mb=16777216, tmp=2147483648] [L159] CALL __VERIFIER_assert(delta < sizeof(mb) * 8) VAL [\old(cond)=0] [L59] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L60] reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 48]: 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 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 654.9s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 1240 SdHoareTripleChecker+Valid, 12.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1203 mSDsluCounter, 6744 SdHoareTripleChecker+Invalid, 11.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 211 IncrementalHoareTripleChecker+Unchecked, 4982 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 872 IncrementalHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 1762 mSDtfsCounter, 872 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 775 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=8, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 468 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 579.2s SatisfiabilityAnalysisTime, 56.5s InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 748 ConstructedInterpolants, 4 QuantifiedInterpolants, 1404 SizeOfPredicates, 49 NumberOfNonLiveVariables, 1194 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 20 InterpolantComputations, 13 PerfectInterpolantSequences, 255/282 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 proved your program to be incorrect! [2022-12-13 21:24:31,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0a6f557-d443-41db-b671-c7a42bb91819/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE