./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_7+soft_float_5a.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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 aff0e850a0570cb9360bb6d36c5ca43ce702912f0a3611fc5fda11d0dcbb5bf1 --- 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 15:58:11,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:58:11,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:58:11,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:58:11,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:58:11,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:58:11,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:58:11,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:58:11,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:58:11,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:58:11,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:58:11,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:58:11,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:58:11,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:58:11,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:58:11,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:58:11,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:58:11,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:58:11,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:58:11,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:58:11,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:58:11,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:58:11,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:58:11,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:58:11,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:58:11,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:58:11,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:58:11,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:58:11,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:58:11,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:58:11,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:58:11,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:58:11,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:58:11,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:58:11,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:58:11,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:58:11,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:58:11,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:58:11,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:58:11,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:58:11,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:58:11,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:58:11,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:58:11,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:58:11,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:58:11,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:58:11,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:58:11,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:58:11,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:58:11,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:58:11,167 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:58:11,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:58:11,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:58:11,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:58:11,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:58:11,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:58:11,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:58:11,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:58:11,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:58:11,169 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:58:11,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:58:11,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:58:11,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:58:11,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:58:11,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:58:11,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:58:11,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:58:11,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:58:11,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:58:11,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:58:11,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:58:11,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:58:11,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:58:11,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:58:11,172 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:58:11,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:58:11,172 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:58:11,172 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff0e850a0570cb9360bb6d36c5ca43ce702912f0a3611fc5fda11d0dcbb5bf1 [2022-12-13 15:58:11,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:58:11,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:58:11,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:58:11,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:58:11,360 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:58:11,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c [2022-12-13 15:58:13,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:58:14,083 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:58:14,083 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c [2022-12-13 15:58:14,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data/e7e8b2617/8cefb4f8d5c44b2586455cf6bf46a704/FLAGa871d50d0 [2022-12-13 15:58:14,498 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data/e7e8b2617/8cefb4f8d5c44b2586455cf6bf46a704 [2022-12-13 15:58:14,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:58:14,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:58:14,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:58:14,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:58:14,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:58:14,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fd8a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14, skipping insertion in model container [2022-12-13 15:58:14,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:58:14,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:58:14,658 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[1995,2008] [2022-12-13 15:58:14,664 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[2364,2377] [2022-12-13 15:58:14,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:58:14,714 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:58:14,727 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[1995,2008] [2022-12-13 15:58:14,729 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[2364,2377] [2022-12-13 15:58:14,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:58:14,769 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:58:14,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14 WrapperNode [2022-12-13 15:58:14,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:58:14,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:58:14,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:58:14,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:58:14,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,811 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 187 [2022-12-13 15:58:14,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:58:14,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:58:14,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:58:14,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:58:14,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,836 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:58:14,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:58:14,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:58:14,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:58:14,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (1/1) ... [2022-12-13 15:58:14,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:58:14,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:58:14,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:58:14,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:58:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:58:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 15:58:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 15:58:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:58:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:58:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:58:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 15:58:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 15:58:14,966 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:58:14,968 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:58:15,266 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:58:15,274 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:58:15,274 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 15:58:15,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:58:15 BoogieIcfgContainer [2022-12-13 15:58:15,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:58:15,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:58:15,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:58:15,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:58:15,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:58:14" (1/3) ... [2022-12-13 15:58:15,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be0ca4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:58:15, skipping insertion in model container [2022-12-13 15:58:15,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:14" (2/3) ... [2022-12-13 15:58:15,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be0ca4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:58:15, skipping insertion in model container [2022-12-13 15:58:15,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:58:15" (3/3) ... [2022-12-13 15:58:15,293 INFO L112 eAbstractionObserver]: Analyzing ICFG square_7+soft_float_5a.c.cil.c [2022-12-13 15:58:15,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:58:15,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:58:15,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:58:15,366 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;@89e3831, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:58:15,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:58:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 74 states have (on average 1.5945945945945945) internal successors, (118), 77 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 15:58:15,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 15:58:15,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:58:15,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:58:15,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:58:15,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:58:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2022-12-13 15:58:15,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:58:15,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031906419] [2022-12-13 15:58:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:58:15,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:58:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:58:15,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:58:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:58:15,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:58:15,505 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:58:15,507 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 15:58:15,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 15:58:15,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:58:15,514 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 15:58:15,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:58:15,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:58:15 BoogieIcfgContainer [2022-12-13 15:58:15,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:58:15,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:58:15,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:58:15,535 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:58:15,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:58:15" (3/4) ... [2022-12-13 15:58:15,538 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:58:15,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:58:15,540 INFO L158 Benchmark]: Toolchain (without parser) took 1038.51ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 101.0MB in the beginning and 120.1MB in the end (delta: -19.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,540 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:58:15,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.31ms. Allocated memory is still 136.3MB. Free memory was 101.0MB in the beginning and 86.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.27ms. Allocated memory is still 136.3MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,542 INFO L158 Benchmark]: Boogie Preprocessor took 28.29ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 82.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,542 INFO L158 Benchmark]: RCFGBuilder took 435.21ms. Allocated memory is still 136.3MB. Free memory was 82.4MB in the beginning and 62.2MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,543 INFO L158 Benchmark]: TraceAbstraction took 247.62ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 121.0MB in the end (delta: 12.7MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,543 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 163.6MB. Free memory was 121.0MB in the beginning and 120.1MB in the end (delta: 916.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:58:15,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.31ms. Allocated memory is still 136.3MB. Free memory was 101.0MB in the beginning and 86.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.27ms. Allocated memory is still 136.3MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.29ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 82.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.21ms. Allocated memory is still 136.3MB. Free memory was 82.4MB in the beginning and 62.2MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 247.62ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 121.0MB in the end (delta: 12.7MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 163.6MB. Free memory was 121.0MB in the beginning and 120.1MB in the end (delta: 916.8kB). Peak memory consumption was 2.1MB. 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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 < 1.4f) 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, 84 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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 15:58:15,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 aff0e850a0570cb9360bb6d36c5ca43ce702912f0a3611fc5fda11d0dcbb5bf1 --- 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 15:58:17,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:58:17,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:58:17,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:58:17,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:58:17,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:58:17,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:58:17,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:58:17,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:58:17,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:58:17,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:58:17,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:58:17,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:58:17,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:58:17,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:58:17,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:58:17,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:58:17,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:58:17,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:58:17,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:58:17,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:58:17,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:58:17,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:58:17,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:58:17,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:58:17,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:58:17,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:58:17,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:58:17,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:58:17,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:58:17,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:58:17,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:58:17,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:58:17,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:58:17,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:58:17,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:58:17,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:58:17,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:58:17,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:58:17,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:58:17,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:58:17,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 15:58:17,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:58:17,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:58:17,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:58:17,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:58:17,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:58:17,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:58:17,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:58:17,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:58:17,305 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:58:17,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:58:17,306 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:58:17,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:58:17,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:58:17,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:58:17,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:58:17,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:58:17,308 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:58:17,308 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:58:17,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:58:17,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:58:17,309 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:58:17,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:58:17,309 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:58:17,309 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:58:17,309 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff0e850a0570cb9360bb6d36c5ca43ce702912f0a3611fc5fda11d0dcbb5bf1 [2022-12-13 15:58:17,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:58:17,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:58:17,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:58:17,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:58:17,539 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:58:17,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c [2022-12-13 15:58:20,142 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:58:20,319 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:58:20,320 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c [2022-12-13 15:58:20,326 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data/472e0c2e4/a68e8acdae7f44bc8ddbd958dd9cea43/FLAG7193209eb [2022-12-13 15:58:20,337 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/data/472e0c2e4/a68e8acdae7f44bc8ddbd958dd9cea43 [2022-12-13 15:58:20,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:58:20,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:58:20,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:58:20,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:58:20,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:58:20,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df1484c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20, skipping insertion in model container [2022-12-13 15:58:20,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:58:20,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:58:20,482 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[1995,2008] [2022-12-13 15:58:20,486 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[2364,2377] [2022-12-13 15:58:20,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:58:20,523 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:58:20,535 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[1995,2008] [2022-12-13 15:58:20,536 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_1996f6db-d05e-426d-98a2-10e2e01e7b6d/sv-benchmarks/c/combinations/square_7+soft_float_5a.c.cil.c[2364,2377] [2022-12-13 15:58:20,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:58:20,563 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:58:20,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20 WrapperNode [2022-12-13 15:58:20,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:58:20,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:58:20,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:58:20,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:58:20,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,595 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-12-13 15:58:20,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:58:20,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:58:20,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:58:20,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:58:20,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,617 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:58:20,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:58:20,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:58:20,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:58:20,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (1/1) ... [2022-12-13 15:58:20,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:58:20,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:58:20,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:58:20,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:58:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:58:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:58:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-13 15:58:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-13 15:58:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:58:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:58:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 15:58:20,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 15:58:20,745 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:58:20,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:58:23,177 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:58:23,183 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:58:23,183 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 15:58:23,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:58:23 BoogieIcfgContainer [2022-12-13 15:58:23,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:58:23,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:58:23,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:58:23,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:58:23,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:58:20" (1/3) ... [2022-12-13 15:58:23,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fe1787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:58:23, skipping insertion in model container [2022-12-13 15:58:23,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:58:20" (2/3) ... [2022-12-13 15:58:23,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fe1787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:58:23, skipping insertion in model container [2022-12-13 15:58:23,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:58:23" (3/3) ... [2022-12-13 15:58:23,191 INFO L112 eAbstractionObserver]: Analyzing ICFG square_7+soft_float_5a.c.cil.c [2022-12-13 15:58:23,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:58:23,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:58:23,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:58:23,255 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;@4922b711, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:58:23,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:58:23,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 15:58:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 15:58:23,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:58:23,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:58:23,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:58:23,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:58:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-12-13 15:58:23,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:58:23,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78306492] [2022-12-13 15:58:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:58:23,283 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 15:58:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:58:23,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 15:58:23,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 15:58:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:58:23,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:58:23,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:58:23,759 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 15:58:23,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:58:23,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:58:23,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78306492] [2022-12-13 15:58:23,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78306492] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:58:23,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:58:23,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:58:23,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813271045] [2022-12-13 15:58:23,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:58:23,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:58:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:58:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:58:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:58:23,789 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 15:58:23,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:58:23,816 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-12-13 15:58:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:58:23,818 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 15:58:23,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:58:23,823 INFO L225 Difference]: With dead ends: 117 [2022-12-13 15:58:23,824 INFO L226 Difference]: Without dead ends: 52 [2022-12-13 15:58:23,826 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 15:58:23,829 INFO L413 NwaCegarLoop]: 82 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, 82 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 15:58:23,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:58:23,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-13 15:58:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-13 15:58:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 15:58:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-12-13 15:58:23,861 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-12-13 15:58:23,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:58:23,861 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-12-13 15:58:23,861 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 15:58:23,861 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-12-13 15:58:23,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 15:58:23,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:58:23,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:58:23,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 15:58:24,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 15:58:24,064 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:58:24,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:58:24,066 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-12-13 15:58:24,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:58:24,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775949133] [2022-12-13 15:58:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:58:24,069 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 15:58:24,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:58:24,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 15:58:24,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:01:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:01:23,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 16:01:23,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:01:37,765 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 16:02:11,360 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 (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 (/ 7.0 5.0)))) (fp.geq |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.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))))) is different from false [2022-12-13 16:02:13,403 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 (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 (/ 7.0 5.0)))) (fp.geq |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.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))))) is different from true [2022-12-13 16:02:13,404 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 16:02:13,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:13,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:13,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775949133] [2022-12-13 16:02:13,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775949133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:13,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:13,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:02:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919760465] [2022-12-13 16:02:13,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:13,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:02:13,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:13,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:02:13,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2022-12-13 16:02:13,408 INFO L87 Difference]: Start difference. First operand 52 states and 71 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 16:02:15,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 16:02:17,983 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.lt |c_ULTIMATE.start_main1_~IN~0#1| .cse0)) (.cse2 (fp.geq |c_ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)))) (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (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)))) .cse1 (or (and (or (not .cse1) (not .cse2)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (and .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)) .cse2)) .cse2 (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2022-12-13 16:02:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:18,124 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-12-13 16:02:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:02:18,125 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 16:02:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:18,126 INFO L225 Difference]: With dead ends: 52 [2022-12-13 16:02:18,126 INFO L226 Difference]: Without dead ends: 47 [2022-12-13 16:02:18,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=20, Invalid=18, Unknown=4, NotChecked=30, Total=72 [2022-12-13 16:02:18,128 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:18,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 178 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 1 Unknown, 138 Unchecked, 2.4s Time] [2022-12-13 16:02:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-13 16:02:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-13 16:02:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.425) internal successors, (57), 40 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 16:02:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2022-12-13 16:02:18,137 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 7 [2022-12-13 16:02:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:18,138 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2022-12-13 16:02:18,138 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 16:02:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2022-12-13 16:02:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 16:02:18,140 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:18,140 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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 16:02:18,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:18,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:18,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:18,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1370969986, now seen corresponding path program 1 times [2022-12-13 16:02:18,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:18,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593869864] [2022-12-13 16:02:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:18,348 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 16:02:18,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:18,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:18,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:18,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:02:18,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:18,548 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:18,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:18,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:18,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593869864] [2022-12-13 16:02:18,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593869864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:18,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:18,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:02:18,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608298203] [2022-12-13 16:02:18,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:18,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:02:18,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:18,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:02:18,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:02:18,553 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:18,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:18,881 INFO L93 Difference]: Finished difference Result 104 states and 150 transitions. [2022-12-13 16:02:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:02:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2022-12-13 16:02:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:18,885 INFO L225 Difference]: With dead ends: 104 [2022-12-13 16:02:18,885 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 16:02:18,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 16:02:18,887 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 16 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:18,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 146 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:02:18,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 16:02:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-12-13 16:02:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-12-13 16:02:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2022-12-13 16:02:18,897 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 43 [2022-12-13 16:02:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:18,897 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2022-12-13 16:02:18,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2022-12-13 16:02:18,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 16:02:18,898 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:18,898 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:02:18,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:19,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:19,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash -14997806, now seen corresponding path program 1 times [2022-12-13 16:02:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:19,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206882958] [2022-12-13 16:02:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:19,104 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 16:02:19,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:19,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:19,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:02:19,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:19,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:19,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:19,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206882958] [2022-12-13 16:02:19,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206882958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:19,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:19,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:02:19,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10538410] [2022-12-13 16:02:19,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:19,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:02:19,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:19,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:02:19,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:02:19,309 INFO L87 Difference]: Start difference. First operand 52 states and 72 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:19,624 INFO L93 Difference]: Finished difference Result 108 states and 153 transitions. [2022-12-13 16:02:19,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:02:19,625 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-12-13 16:02:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:19,626 INFO L225 Difference]: With dead ends: 108 [2022-12-13 16:02:19,626 INFO L226 Difference]: Without dead ends: 64 [2022-12-13 16:02:19,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 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 16:02:19,628 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 10 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:19,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 160 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:02:19,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-13 16:02:19,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2022-12-13 16:02:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 16:02:19,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2022-12-13 16:02:19,639 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 46 [2022-12-13 16:02:19,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:19,639 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2022-12-13 16:02:19,639 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2022-12-13 16:02:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 16:02:19,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:19,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 16:02:19,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1638472845, now seen corresponding path program 1 times [2022-12-13 16:02:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:19,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082453610] [2022-12-13 16:02:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:19,847 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 16:02:19,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:19,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:19,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:02:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:20,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:20,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:20,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082453610] [2022-12-13 16:02:20,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082453610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:20,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:20,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:02:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894354226] [2022-12-13 16:02:20,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:20,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:02:20,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:02:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:02:20,106 INFO L87 Difference]: Start difference. First operand 57 states and 79 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:20,450 INFO L93 Difference]: Finished difference Result 117 states and 165 transitions. [2022-12-13 16:02:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:02:20,451 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-12-13 16:02:20,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:20,452 INFO L225 Difference]: With dead ends: 117 [2022-12-13 16:02:20,452 INFO L226 Difference]: Without dead ends: 68 [2022-12-13 16:02:20,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 16:02:20,454 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 17 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:20,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 153 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:02:20,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-12-13 16:02:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2022-12-13 16:02:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 50 states have internal predecessors, (67), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 16:02:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2022-12-13 16:02:20,464 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 47 [2022-12-13 16:02:20,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:20,464 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2022-12-13 16:02:20,465 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2022-12-13 16:02:20,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 16:02:20,466 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:20,466 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 16:02:20,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:20,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:20,668 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:20,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash 388661875, now seen corresponding path program 1 times [2022-12-13 16:02:20,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:20,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871527370] [2022-12-13 16:02:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:20,672 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 16:02:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:20,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:20,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:20,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:02:20,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:20,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:20,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:20,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871527370] [2022-12-13 16:02:20,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871527370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:20,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:20,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:02:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934122890] [2022-12-13 16:02:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:20,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:02:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:02:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:02:20,919 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:21,518 INFO L93 Difference]: Finished difference Result 125 states and 176 transitions. [2022-12-13 16:02:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:02:21,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2022-12-13 16:02:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:21,521 INFO L225 Difference]: With dead ends: 125 [2022-12-13 16:02:21,521 INFO L226 Difference]: Without dead ends: 75 [2022-12-13 16:02:21,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:02:21,523 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:21,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 202 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 16:02:21,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-12-13 16:02:21,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 59. [2022-12-13 16:02:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.38) internal successors, (69), 51 states have internal predecessors, (69), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 16:02:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2022-12-13 16:02:21,533 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 48 [2022-12-13 16:02:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:21,534 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2022-12-13 16:02:21,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:02:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2022-12-13 16:02:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 16:02:21,536 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:21,536 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-12-13 16:02:21,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:21,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:21,738 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:21,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:21,738 INFO L85 PathProgramCache]: Analyzing trace with hash 933318672, now seen corresponding path program 1 times [2022-12-13 16:02:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:21,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091306969] [2022-12-13 16:02:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:21,739 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 16:02:21,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:21,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:21,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:21,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:02:21,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:22,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:02:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:02:22,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:22,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091306969] [2022-12-13 16:02:22,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091306969] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:02:22,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:02:22,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 16:02:22,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644017421] [2022-12-13 16:02:22,592 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:02:22,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:02:22,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:22,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:02:22,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:02:22,594 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:23,365 INFO L93 Difference]: Finished difference Result 146 states and 208 transitions. [2022-12-13 16:02:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:02:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2022-12-13 16:02:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:23,368 INFO L225 Difference]: With dead ends: 146 [2022-12-13 16:02:23,369 INFO L226 Difference]: Without dead ends: 95 [2022-12-13 16:02:23,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:02:23,370 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 53 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:23,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 210 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 16:02:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-13 16:02:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 67. [2022-12-13 16:02:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 16:02:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 95 transitions. [2022-12-13 16:02:23,384 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 95 transitions. Word has length 49 [2022-12-13 16:02:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:23,384 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 95 transitions. [2022-12-13 16:02:23,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2022-12-13 16:02:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 16:02:23,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:23,385 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 1] [2022-12-13 16:02:23,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:23,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:23,587 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:23,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:23,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1187730481, now seen corresponding path program 1 times [2022-12-13 16:02:23,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:23,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286265375] [2022-12-13 16:02:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:23,590 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 16:02:23,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:23,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:23,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:23,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:02:23,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:23,972 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:23,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:02:24,631 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:02:24,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:24,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286265375] [2022-12-13 16:02:24,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286265375] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:02:24,631 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:02:24,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 16:02:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922098458] [2022-12-13 16:02:24,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:02:24,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:02:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:24,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:02:24,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:02:24,633 INFO L87 Difference]: Start difference. First operand 67 states and 95 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:26,122 INFO L93 Difference]: Finished difference Result 164 states and 236 transitions. [2022-12-13 16:02:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:02:26,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2022-12-13 16:02:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:26,123 INFO L225 Difference]: With dead ends: 164 [2022-12-13 16:02:26,123 INFO L226 Difference]: Without dead ends: 105 [2022-12-13 16:02:26,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:02:26,124 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:26,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 294 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 16:02:26,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-12-13 16:02:26,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 71. [2022-12-13 16:02:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.435483870967742) internal successors, (89), 63 states have internal predecessors, (89), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 16:02:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 102 transitions. [2022-12-13 16:02:26,135 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 102 transitions. Word has length 51 [2022-12-13 16:02:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:26,135 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 102 transitions. [2022-12-13 16:02:26,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:26,135 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2022-12-13 16:02:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 16:02:26,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:26,136 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2022-12-13 16:02:26,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:26,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:26,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash -763243182, now seen corresponding path program 2 times [2022-12-13 16:02:26,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:26,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756029607] [2022-12-13 16:02:26,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:02:26,341 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 16:02:26,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:26,343 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:26,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:26,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 16:02:26,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:02:26,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 16:02:26,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-13 16:02:26,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:26,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:26,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756029607] [2022-12-13 16:02:26,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756029607] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:26,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:26,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:02:26,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014744039] [2022-12-13 16:02:26,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:26,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:02:26,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:02:26,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:02:26,732 INFO L87 Difference]: Start difference. First operand 71 states and 102 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:02:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:27,182 INFO L93 Difference]: Finished difference Result 119 states and 169 transitions. [2022-12-13 16:02:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:02:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2022-12-13 16:02:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:27,185 INFO L225 Difference]: With dead ends: 119 [2022-12-13 16:02:27,185 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 16:02:27,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 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 16:02:27,186 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:27,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 336 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:02:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 16:02:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 84. [2022-12-13 16:02:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 75 states have internal predecessors, (101), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:02:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2022-12-13 16:02:27,197 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 58 [2022-12-13 16:02:27,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:27,198 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2022-12-13 16:02:27,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:02:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2022-12-13 16:02:27,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 16:02:27,198 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:27,199 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2022-12-13 16:02:27,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:27,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:27,400 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1156270192, now seen corresponding path program 1 times [2022-12-13 16:02:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:27,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724850942] [2022-12-13 16:02:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:27,403 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 16:02:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:27,405 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:27,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:27,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 16:02:27,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:27,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:02:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:02:29,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:29,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724850942] [2022-12-13 16:02:29,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724850942] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:02:29,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:02:29,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-13 16:02:29,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546368472] [2022-12-13 16:02:29,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:02:29,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 16:02:29,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:29,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 16:02:29,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:02:29,244 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:32,931 INFO L93 Difference]: Finished difference Result 231 states and 330 transitions. [2022-12-13 16:02:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 16:02:32,932 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2022-12-13 16:02:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:32,933 INFO L225 Difference]: With dead ends: 231 [2022-12-13 16:02:32,934 INFO L226 Difference]: Without dead ends: 155 [2022-12-13 16:02:32,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=183, Invalid=323, Unknown=0, NotChecked=0, Total=506 [2022-12-13 16:02:32,935 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 140 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:32,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 591 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 16:02:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-12-13 16:02:32,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 98. [2022-12-13 16:02:32,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 89 states have internal predecessors, (124), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:02:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2022-12-13 16:02:32,959 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 58 [2022-12-13 16:02:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:32,959 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 142 transitions. [2022-12-13 16:02:32,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 142 transitions. [2022-12-13 16:02:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 16:02:32,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:32,961 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 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] [2022-12-13 16:02:32,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:33,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:33,163 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1365284847, now seen corresponding path program 1 times [2022-12-13 16:02:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:33,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016989348] [2022-12-13 16:02:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:33,165 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 16:02:33,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:33,168 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:33,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:33,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 16:02:33,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:34,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:02:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 4 proven. 53 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:02:35,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:35,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016989348] [2022-12-13 16:02:35,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016989348] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:02:35,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:02:35,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-12-13 16:02:35,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949222926] [2022-12-13 16:02:35,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:02:35,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 16:02:35,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:35,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 16:02:35,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-12-13 16:02:35,748 INFO L87 Difference]: Start difference. First operand 98 states and 142 transitions. Second operand has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:40,047 INFO L93 Difference]: Finished difference Result 254 states and 368 transitions. [2022-12-13 16:02:40,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 16:02:40,048 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2022-12-13 16:02:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:40,049 INFO L225 Difference]: With dead ends: 254 [2022-12-13 16:02:40,049 INFO L226 Difference]: Without dead ends: 164 [2022-12-13 16:02:40,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=354, Invalid=638, Unknown=0, NotChecked=0, Total=992 [2022-12-13 16:02:40,050 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 248 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:40,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 624 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 16:02:40,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-13 16:02:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 108. [2022-12-13 16:02:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 99 states have internal predecessors, (141), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:02:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2022-12-13 16:02:40,065 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 63 [2022-12-13 16:02:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:40,066 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2022-12-13 16:02:40,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.111111111111111) internal successors, (74), 18 states have internal predecessors, (74), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2022-12-13 16:02:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 16:02:40,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:40,067 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 4, 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] [2022-12-13 16:02:40,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Forceful destruction successful, exit code 0 [2022-12-13 16:02:40,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,268 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:40,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1400933040, now seen corresponding path program 2 times [2022-12-13 16:02:40,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:40,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270552906] [2022-12-13 16:02:40,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:02:40,271 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 16:02:40,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:40,273 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 16:02:40,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:02:40,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:02:40,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-12-13 16:02:40,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:40,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:40,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270552906] [2022-12-13 16:02:40,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270552906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:40,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:40,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:02:40,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814896692] [2022-12-13 16:02:40,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:40,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:02:40,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:40,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:02:40,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:02:40,495 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:02:40,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:40,524 INFO L93 Difference]: Finished difference Result 131 states and 190 transitions. [2022-12-13 16:02:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:02:40,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 76 [2022-12-13 16:02:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:40,525 INFO L225 Difference]: With dead ends: 131 [2022-12-13 16:02:40,525 INFO L226 Difference]: Without dead ends: 108 [2022-12-13 16:02:40,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:02:40,526 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:40,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 128 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:02:40,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-12-13 16:02:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-12-13 16:02:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 99 states have internal predecessors, (139), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:02:40,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2022-12-13 16:02:40,537 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 76 [2022-12-13 16:02:40,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:40,537 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2022-12-13 16:02:40,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:02:40,537 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2022-12-13 16:02:40,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 16:02:40,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:40,538 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 4, 4, 4, 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 16:02:40,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,740 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:40,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash 270007180, now seen corresponding path program 1 times [2022-12-13 16:02:40,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:40,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102236834] [2022-12-13 16:02:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:40,743 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 16:02:40,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:40,746 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:40,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 16:02:40,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 24 proven. 155 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:02:42,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:02:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 4 proven. 163 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:02:45,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:45,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102236834] [2022-12-13 16:02:45,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102236834] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:02:45,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:02:45,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-12-13 16:02:45,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989242944] [2022-12-13 16:02:45,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:02:45,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 16:02:45,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 16:02:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-12-13 16:02:45,834 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 26 states, 26 states have (on average 3.923076923076923) internal successors, (102), 26 states have internal predecessors, (102), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:58,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:58,424 INFO L93 Difference]: Finished difference Result 357 states and 514 transitions. [2022-12-13 16:02:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 16:02:58,425 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.923076923076923) internal successors, (102), 26 states have internal predecessors, (102), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-12-13 16:02:58,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:58,427 INFO L225 Difference]: With dead ends: 357 [2022-12-13 16:02:58,427 INFO L226 Difference]: Without dead ends: 257 [2022-12-13 16:02:58,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=729, Invalid=1433, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 16:02:58,428 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 421 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:58,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1690 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-12-13 16:02:58,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-12-13 16:02:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 134. [2022-12-13 16:02:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 123 states have (on average 1.4796747967479675) internal successors, (182), 125 states have internal predecessors, (182), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:02:58,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 200 transitions. [2022-12-13 16:02:58,456 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 200 transitions. Word has length 78 [2022-12-13 16:02:58,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:58,457 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 200 transitions. [2022-12-13 16:02:58,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.923076923076923) internal successors, (102), 26 states have internal predecessors, (102), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:02:58,457 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 200 transitions. [2022-12-13 16:02:58,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 16:02:58,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:58,458 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 4, 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 16:02:58,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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)] Ended with exit code 0 [2022-12-13 16:02:58,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:58,659 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:02:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1407699605, now seen corresponding path program 1 times [2022-12-13 16:02:58,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:58,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871591168] [2022-12-13 16:02:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:58,662 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 16:02:58,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:58,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:58,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:02:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:58,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 16:02:58,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:03:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 273 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:03:01,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:03:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 4 proven. 281 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:03:05,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:03:05,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871591168] [2022-12-13 16:03:05,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871591168] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:03:05,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:03:05,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2022-12-13 16:03:05,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911776307] [2022-12-13 16:03:05,768 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:03:05,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 16:03:05,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:03:05,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 16:03:05,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 16:03:05,769 INFO L87 Difference]: Start difference. First operand 134 states and 200 transitions. Second operand has 34 states, 34 states have (on average 3.6470588235294117) internal successors, (124), 34 states have internal predecessors, (124), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:03:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:03:17,503 INFO L93 Difference]: Finished difference Result 358 states and 520 transitions. [2022-12-13 16:03:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-13 16:03:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.6470588235294117) internal successors, (124), 34 states have internal predecessors, (124), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2022-12-13 16:03:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:03:17,505 INFO L225 Difference]: With dead ends: 358 [2022-12-13 16:03:17,506 INFO L226 Difference]: Without dead ends: 232 [2022-12-13 16:03:17,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=991, Invalid=2315, Unknown=0, NotChecked=0, Total=3306 [2022-12-13 16:03:17,507 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 772 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:03:17,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1544 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-12-13 16:03:17,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-12-13 16:03:17,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 138. [2022-12-13 16:03:17,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 127 states have (on average 1.4881889763779528) internal successors, (189), 129 states have internal predecessors, (189), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:03:17,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 207 transitions. [2022-12-13 16:03:17,526 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 207 transitions. Word has length 89 [2022-12-13 16:03:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:03:17,526 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 207 transitions. [2022-12-13 16:03:17,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.6470588235294117) internal successors, (124), 34 states have internal predecessors, (124), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:03:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 207 transitions. [2022-12-13 16:03:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-13 16:03:17,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:17,528 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 4, 4, 4, 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 16:03:17,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:17,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:17,729 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:17,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:17,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1851209972, now seen corresponding path program 2 times [2022-12-13 16:03:17,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:03:17,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780739592] [2022-12-13 16:03:17,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:03:17,732 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 16:03:17,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:03:17,735 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:17,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:17,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 16:03:17,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:03:17,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:03:17,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:03:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2022-12-13 16:03:18,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:03:18,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:03:18,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780739592] [2022-12-13 16:03:18,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780739592] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:03:18,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:03:18,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:03:18,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930975462] [2022-12-13 16:03:18,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:03:18,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:03:18,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:03:18,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:03:18,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:03:18,033 INFO L87 Difference]: Start difference. First operand 138 states and 207 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:03:18,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:03:18,332 INFO L93 Difference]: Finished difference Result 164 states and 242 transitions. [2022-12-13 16:03:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:03:18,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 114 [2022-12-13 16:03:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:03:18,334 INFO L225 Difference]: With dead ends: 164 [2022-12-13 16:03:18,334 INFO L226 Difference]: Without dead ends: 159 [2022-12-13 16:03:18,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:03:18,334 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 57 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:03:18,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 166 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:03:18,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-12-13 16:03:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 143. [2022-12-13 16:03:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 132 states have (on average 1.4772727272727273) internal successors, (195), 134 states have internal predecessors, (195), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:03:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 213 transitions. [2022-12-13 16:03:18,351 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 213 transitions. Word has length 114 [2022-12-13 16:03:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:03:18,351 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 213 transitions. [2022-12-13 16:03:18,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:03:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 213 transitions. [2022-12-13 16:03:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 16:03:18,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:03:18,353 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 4, 4, 4, 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] [2022-12-13 16:03:18,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:18,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:18,554 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:03:18,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:03:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash -133940046, now seen corresponding path program 1 times [2022-12-13 16:03:18,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:03:18,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973349275] [2022-12-13 16:03:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:03:18,556 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 16:03:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:03:18,559 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:18,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:03:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:03:18,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 16:03:18,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:03:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 24 proven. 737 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 16:03:23,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:03:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 4 proven. 745 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 16:03:35,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:03:35,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973349275] [2022-12-13 16:03:35,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973349275] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:03:35,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:03:35,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-12-13 16:03:35,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859452685] [2022-12-13 16:03:35,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:03:35,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-12-13 16:03:35,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:03:35,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-12-13 16:03:35,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2022-12-13 16:03:35,165 INFO L87 Difference]: Start difference. First operand 143 states and 213 transitions. Second operand has 50 states, 50 states have (on average 3.52) internal successors, (176), 50 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:04:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:26,317 INFO L93 Difference]: Finished difference Result 601 states and 878 transitions. [2022-12-13 16:04:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-12-13 16:04:26,318 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.52) internal successors, (176), 50 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 116 [2022-12-13 16:04:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:26,323 INFO L225 Difference]: With dead ends: 601 [2022-12-13 16:04:26,323 INFO L226 Difference]: Without dead ends: 466 [2022-12-13 16:04:26,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1452 ImplicationChecksByTransitivity, 37.5s TimeCoverageRelationStatistics Valid=2901, Invalid=6029, Unknown=0, NotChecked=0, Total=8930 [2022-12-13 16:04:26,331 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1748 mSDsluCounter, 4951 mSDsCounter, 0 mSdLazyCounter, 4195 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 5161 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:26,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 5161 Invalid, 4243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 4195 Invalid, 0 Unknown, 0 Unchecked, 26.2s Time] [2022-12-13 16:04:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-12-13 16:04:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 211. [2022-12-13 16:04:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 200 states have (on average 1.54) internal successors, (308), 202 states have internal predecessors, (308), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:04:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 326 transitions. [2022-12-13 16:04:26,380 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 326 transitions. Word has length 116 [2022-12-13 16:04:26,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:26,381 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 326 transitions. [2022-12-13 16:04:26,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.52) internal successors, (176), 50 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 16:04:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 326 transitions. [2022-12-13 16:04:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 16:04:26,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:26,382 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 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] [2022-12-13 16:04:26,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:26,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:26,582 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1556286225, now seen corresponding path program 1 times [2022-12-13 16:04:26,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:04:26,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094692363] [2022-12-13 16:04:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:26,583 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 16:04:26,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:04:26,584 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:26,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:26,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:04:26,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2022-12-13 16:04:26,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:04:26,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:04:26,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094692363] [2022-12-13 16:04:26,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094692363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:26,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:26,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:04:26,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857485796] [2022-12-13 16:04:26,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:26,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:04:26,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:04:26,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:04:26,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:04:26,798 INFO L87 Difference]: Start difference. First operand 211 states and 326 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:04:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:27,042 INFO L93 Difference]: Finished difference Result 224 states and 340 transitions. [2022-12-13 16:04:27,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:04:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 121 [2022-12-13 16:04:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:27,044 INFO L225 Difference]: With dead ends: 224 [2022-12-13 16:04:27,044 INFO L226 Difference]: Without dead ends: 218 [2022-12-13 16:04:27,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:04:27,045 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 16 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:27,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 237 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:04:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-13 16:04:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2022-12-13 16:04:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 205 states have (on average 1.5317073170731708) internal successors, (314), 207 states have internal predecessors, (314), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 16:04:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 332 transitions. [2022-12-13 16:04:27,088 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 332 transitions. Word has length 121 [2022-12-13 16:04:27,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:27,088 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 332 transitions. [2022-12-13 16:04:27,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:04:27,088 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 332 transitions. [2022-12-13 16:04:27,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 16:04:27,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:27,090 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 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] [2022-12-13 16:04:27,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:27,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:27,291 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:27,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1613544527, now seen corresponding path program 1 times [2022-12-13 16:04:27,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:04:27,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822596641] [2022-12-13 16:04:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:27,294 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 16:04:27,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:04:27,297 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:27,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (19)] Waiting until timeout for monitored process [2022-12-13 16:04:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:27,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:04:27,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2022-12-13 16:04:27,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:04:27,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:04:27,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822596641] [2022-12-13 16:04:27,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822596641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:27,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:27,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:04:27,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799169341] [2022-12-13 16:04:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:27,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:04:27,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:04:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:04:27,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:04:27,684 INFO L87 Difference]: Start difference. First operand 216 states and 332 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:04:27,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:27,915 INFO L93 Difference]: Finished difference Result 222 states and 337 transitions. [2022-12-13 16:04:27,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:04:27,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 121 [2022-12-13 16:04:27,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:27,917 INFO L225 Difference]: With dead ends: 222 [2022-12-13 16:04:27,917 INFO L226 Difference]: Without dead ends: 204 [2022-12-13 16:04:27,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:04:27,918 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:27,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 305 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:04:27,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-13 16:04:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-12-13 16:04:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 193 states have (on average 1.549222797927461) internal successors, (299), 196 states have internal predecessors, (299), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-13 16:04:27,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 314 transitions. [2022-12-13 16:04:27,947 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 314 transitions. Word has length 121 [2022-12-13 16:04:27,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:27,947 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 314 transitions. [2022-12-13 16:04:27,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:04:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 314 transitions. [2022-12-13 16:04:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 16:04:27,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:27,949 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 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, 1, 1, 1] [2022-12-13 16:04:27,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (19)] Ended with exit code 0 [2022-12-13 16:04:28,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:28,150 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:28,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1975165408, now seen corresponding path program 1 times [2022-12-13 16:04:28,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:04:28,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495792511] [2022-12-13 16:04:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:28,151 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 16:04:28,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:04:28,152 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:28,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (20)] Waiting until timeout for monitored process [2022-12-13 16:04:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:28,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 16:04:28,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-12-13 16:04:28,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:04:28,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:04:28,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495792511] [2022-12-13 16:04:28,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495792511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:04:28,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:04:28,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:04:28,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061644519] [2022-12-13 16:04:28,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:04:28,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:04:28,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:04:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:04:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:04:28,363 INFO L87 Difference]: Start difference. First operand 204 states and 314 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:04:28,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:28,462 INFO L93 Difference]: Finished difference Result 230 states and 347 transitions. [2022-12-13 16:04:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:04:28,462 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 123 [2022-12-13 16:04:28,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:28,463 INFO L225 Difference]: With dead ends: 230 [2022-12-13 16:04:28,464 INFO L226 Difference]: Without dead ends: 204 [2022-12-13 16:04:28,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 16:04:28,464 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 32 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:28,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:04:28,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-13 16:04:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-12-13 16:04:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 193 states have (on average 1.544041450777202) internal successors, (298), 196 states have internal predecessors, (298), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-13 16:04:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 313 transitions. [2022-12-13 16:04:28,492 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 313 transitions. Word has length 123 [2022-12-13 16:04:28,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:28,492 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 313 transitions. [2022-12-13 16:04:28,492 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, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-13 16:04:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 313 transitions. [2022-12-13 16:04:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 16:04:28,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:28,493 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 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, 1, 1, 1] [2022-12-13 16:04:28,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (20)] Forceful destruction successful, exit code 0 [2022-12-13 16:04:28,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:28,694 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:28,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:28,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1388359394, now seen corresponding path program 1 times [2022-12-13 16:04:28,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:04:28,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167564772] [2022-12-13 16:04:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:28,694 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 16:04:28,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:04:28,695 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:28,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (21)] Waiting until timeout for monitored process [2022-12-13 16:04:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:28,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:04:28,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:29,096 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-12-13 16:04:29,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:04:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-12-13 16:04:29,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:04:29,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167564772] [2022-12-13 16:04:29,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167564772] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:04:29,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:04:29,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-12-13 16:04:29,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664718340] [2022-12-13 16:04:29,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:04:29,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:04:29,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:04:29,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:04:29,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:04:29,433 INFO L87 Difference]: Start difference. First operand 204 states and 313 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:04:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:29,685 INFO L93 Difference]: Finished difference Result 209 states and 317 transitions. [2022-12-13 16:04:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:04:29,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 123 [2022-12-13 16:04:29,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:29,687 INFO L225 Difference]: With dead ends: 209 [2022-12-13 16:04:29,687 INFO L226 Difference]: Without dead ends: 200 [2022-12-13 16:04:29,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 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 16:04:29,688 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 18 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:29,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 246 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:04:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-12-13 16:04:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-12-13 16:04:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 188 states have (on average 1.5425531914893618) internal successors, (290), 191 states have internal predecessors, (290), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-12-13 16:04:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 305 transitions. [2022-12-13 16:04:29,718 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 305 transitions. Word has length 123 [2022-12-13 16:04:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:29,719 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 305 transitions. [2022-12-13 16:04:29,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:04:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 305 transitions. [2022-12-13 16:04:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-12-13 16:04:29,719 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:29,719 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2022-12-13 16:04:29,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (21)] Forceful destruction successful, exit code 0 [2022-12-13 16:04:29,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:29,920 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:29,921 INFO L85 PathProgramCache]: Analyzing trace with hash 564140262, now seen corresponding path program 1 times [2022-12-13 16:04:29,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:04:29,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159687976] [2022-12-13 16:04:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:04:29,921 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 16:04:29,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:04:29,922 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:29,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (22)] Waiting until timeout for monitored process [2022-12-13 16:04:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:04:29,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 16:04:29,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-12-13 16:04:30,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:04:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2022-12-13 16:04:30,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:04:30,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159687976] [2022-12-13 16:04:30,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159687976] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 16:04:30,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:04:30,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-12-13 16:04:30,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641477124] [2022-12-13 16:04:30,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:04:30,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:04:30,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:04:30,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:04:30,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:04:30,686 INFO L87 Difference]: Start difference. First operand 199 states and 305 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:04:31,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:31,200 INFO L93 Difference]: Finished difference Result 226 states and 338 transitions. [2022-12-13 16:04:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:04:31,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 126 [2022-12-13 16:04:31,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:31,202 INFO L225 Difference]: With dead ends: 226 [2022-12-13 16:04:31,202 INFO L226 Difference]: Without dead ends: 196 [2022-12-13 16:04:31,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:04:31,203 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 6 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:31,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 388 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:04:31,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-13 16:04:31,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-12-13 16:04:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 186 states have (on average 1.3010752688172043) internal successors, (242), 188 states have internal predecessors, (242), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-13 16:04:31,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 254 transitions. [2022-12-13 16:04:31,224 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 254 transitions. Word has length 126 [2022-12-13 16:04:31,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:31,224 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 254 transitions. [2022-12-13 16:04:31,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:04:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 254 transitions. [2022-12-13 16:04:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 16:04:31,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:04:31,225 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 23, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1] [2022-12-13 16:04:31,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (22)] Ended with exit code 0 [2022-12-13 16:04:31,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:31,425 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:04:31,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:04:31,426 INFO L85 PathProgramCache]: Analyzing trace with hash 300411547, now seen corresponding path program 2 times [2022-12-13 16:04:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:04:31,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290311686] [2022-12-13 16:04:31,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:04:31,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 16:04:31,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:04:31,428 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 16:04:31,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (23)] Waiting until timeout for monitored process [2022-12-13 16:04:31,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:04:31,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:04:31,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 16:04:31,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2022-12-13 16:04:31,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:04:32,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:04:32,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290311686] [2022-12-13 16:04:32,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290311686] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:04:32,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1056256005] [2022-12-13 16:04:32,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 16:04:32,736 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 16:04:32,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 16:04:32,737 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 16:04:32,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-12-13 16:04:32,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 16:04:32,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 16:04:32,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 16:04:32,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:04:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 857 trivial. 0 not checked. [2022-12-13 16:04:32,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 16:04:33,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1056256005] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 16:04:33,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 16:04:33,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-12-13 16:04:33,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274727621] [2022-12-13 16:04:33,768 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 16:04:33,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:04:33,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:04:33,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:04:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-12-13 16:04:33,770 INFO L87 Difference]: Start difference. First operand 196 states and 254 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:04:34,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:04:34,257 INFO L93 Difference]: Finished difference Result 197 states and 255 transitions. [2022-12-13 16:04:34,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 16:04:34,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 130 [2022-12-13 16:04:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:04:34,259 INFO L225 Difference]: With dead ends: 197 [2022-12-13 16:04:34,259 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 16:04:34,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 281 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2022-12-13 16:04:34,260 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:04:34,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 210 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:04:34,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 16:04:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 16:04:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 16:04:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 16:04:34,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-12-13 16:04:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:04:34,261 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 16:04:34,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 16:04:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 16:04:34,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 16:04:34,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-13 16:04:34,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-13 16:04:34,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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 (23)] Ended with exit code 0 [2022-12-13 16:04:34,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-12-13 16:04:34,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/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=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1996f6db-d05e-426d-98a2-10e2e01e7b6d/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 16:04:34,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.