./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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_9c974b07-d314-4e1e-9859-2b9b2866e858/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 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a --- 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 13:29:47,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:29:47,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:29:47,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:29:47,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:29:47,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:29:47,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:29:47,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:29:47,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:29:47,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:29:47,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:29:47,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:29:47,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:29:47,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:29:47,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:29:47,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:29:47,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:29:47,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:29:47,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:29:47,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:29:47,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:29:47,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:29:47,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:29:47,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:29:47,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:29:47,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:29:47,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:29:47,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:29:47,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:29:47,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:29:47,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:29:47,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:29:47,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:29:47,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:29:47,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:29:47,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:29:47,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:29:47,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:29:47,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:29:47,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:29:47,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:29:47,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:29:47,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:29:47,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:29:47,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:29:47,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:29:47,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:29:47,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:29:47,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:29:47,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:29:47,876 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:29:47,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:29:47,876 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:29:47,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:29:47,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:29:47,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:29:47,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:29:47,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:29:47,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:29:47,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:29:47,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:29:47,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:29:47,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:29:47,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:29:47,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:29:47,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:29:47,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:29:47,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:29:47,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:29:47,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:29:47,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:29:47,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:29:47,881 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:29:47,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:29:47,881 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:29:47,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:29:47,881 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:29:47,882 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_9c974b07-d314-4e1e-9859-2b9b2866e858/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a [2022-12-13 13:29:48,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:29:48,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:29:48,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:29:48,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:29:48,094 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:29:48,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-12-13 13:29:50,546 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:29:50,722 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:29:50,723 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-12-13 13:29:50,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data/04a63be02/88111c533ad845619edbe78118a5b42f/FLAG449c3b37b [2022-12-13 13:29:51,110 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data/04a63be02/88111c533ad845619edbe78118a5b42f [2022-12-13 13:29:51,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:29:51,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:29:51,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:29:51,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:29:51,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:29:51,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4721a420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51, skipping insertion in model container [2022-12-13 13:29:51,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:29:51,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:29:51,278 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_9c974b07-d314-4e1e-9859-2b9b2866e858/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2022-12-13 13:29:51,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:29:51,289 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:29:51,315 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_9c974b07-d314-4e1e-9859-2b9b2866e858/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2022-12-13 13:29:51,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:29:51,326 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:29:51,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51 WrapperNode [2022-12-13 13:29:51,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:29:51,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:29:51,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:29:51,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:29:51,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,357 INFO L138 Inliner]: procedures = 17, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2022-12-13 13:29:51,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:29:51,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:29:51,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:29:51,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:29:51,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:29:51,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:29:51,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:29:51,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:29:51,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (1/1) ... [2022-12-13 13:29:51,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:29:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:51,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:29:51,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:29:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:29:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:29:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:29:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:29:51,500 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:29:51,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:29:51,730 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:29:51,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:29:51,736 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-12-13 13:29:51,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:29:51 BoogieIcfgContainer [2022-12-13 13:29:51,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:29:51,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:29:51,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:29:51,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:29:51,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:29:51" (1/3) ... [2022-12-13 13:29:51,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17273cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:29:51, skipping insertion in model container [2022-12-13 13:29:51,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:51" (2/3) ... [2022-12-13 13:29:51,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17273cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:29:51, skipping insertion in model container [2022-12-13 13:29:51,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:29:51" (3/3) ... [2022-12-13 13:29:51,747 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2022-12-13 13:29:51,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:29:51,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:29:51,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:29:51,801 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;@7ef03a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:29:51,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:29:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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 13:29:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:29:51,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:51,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:51,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2022-12-13 13:29:51,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:51,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715535674] [2022-12-13 13:29:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:51,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,941 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 13:29:51,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:51,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715535674] [2022-12-13 13:29:51,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715535674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:51,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:51,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:29:51,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707264869] [2022-12-13 13:29:51,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:51,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:29:51,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:51,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:29:51,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:29:51,977 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 13:29:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:51,992 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2022-12-13 13:29:51,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:29:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-12-13 13:29:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:51,999 INFO L225 Difference]: With dead ends: 86 [2022-12-13 13:29:52,000 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 13:29:52,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 13:29:52,004 INFO L413 NwaCegarLoop]: 58 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, 58 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 13:29:52,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:29:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 13:29:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-13 13:29:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:29:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2022-12-13 13:29:52,033 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2022-12-13 13:29:52,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:52,033 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2022-12-13 13:29:52,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 13:29:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-12-13 13:29:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:29:52,034 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:52,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:52,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:29:52,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2022-12-13 13:29:52,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:52,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720376212] [2022-12-13 13:29:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:52,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:29:52,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:29:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:29:52,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:29:52,096 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:29:52,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:29:52,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:29:52,101 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:29:52,103 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:29:52,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:29:52 BoogieIcfgContainer [2022-12-13 13:29:52,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:29:52,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:29:52,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:29:52,121 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:29:52,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:29:51" (3/4) ... [2022-12-13 13:29:52,124 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:29:52,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:29:52,125 INFO L158 Benchmark]: Toolchain (without parser) took 1011.98ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 105.7MB in the end (delta: 5.4MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-12-13 13:29:52,125 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:29:52,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.75ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 98.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:29:52,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.35ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 95.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:29:52,126 INFO L158 Benchmark]: Boogie Preprocessor took 22.80ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 93.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:29:52,126 INFO L158 Benchmark]: RCFGBuilder took 356.99ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 75.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 13:29:52,127 INFO L158 Benchmark]: TraceAbstraction took 380.17ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 105.7MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:29:52,127 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 142.6MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:29:52,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.75ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 98.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.35ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 95.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.80ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 93.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.99ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 75.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 380.17ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 105.7MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 142.6MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 160]: 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 146, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] float x = 0.0f / 0.0f; [L156] CALL, EXPR __ieee754_log10f(x) [L107] float y, z; [L108] __int32_t i, k, hx; VAL [\old(x)=4294967304, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967304, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [\old(x)=4294967304, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967304, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [\old(x)=4294967304, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967304, zero=0, zero_log=0] [L156] RET, EXPR __ieee754_log10f(x) [L156] float res = __ieee754_log10f(x); [L159] CALL, EXPR isnan_float(res) [L146] return x != x; VAL [\old(x)=4294967303, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967303, zero=0, zero_log=0] [L159] RET, EXPR isnan_float(res) [L159] COND TRUE !isnan_float(res) [L160] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=4294967303, two25_log=33554432, two25_log10=33554432, x=4294967304, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 13:29:52,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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_9c974b07-d314-4e1e-9859-2b9b2866e858/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 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a --- 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 13:29:53,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:29:53,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:29:53,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:29:53,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:29:53,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:29:53,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:29:53,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:29:53,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:29:53,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:29:53,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:29:53,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:29:53,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:29:53,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:29:53,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:29:53,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:29:53,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:29:53,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:29:53,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:29:53,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:29:53,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:29:53,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:29:53,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:29:53,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:29:53,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:29:53,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:29:53,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:29:53,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:29:53,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:29:53,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:29:53,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:29:53,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:29:53,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:29:53,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:29:53,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:29:53,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:29:53,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:29:53,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:29:53,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:29:53,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:29:53,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:29:53,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 13:29:53,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:29:53,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:29:53,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:29:53,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:29:53,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:29:53,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:29:53,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:29:53,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:29:53,636 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:29:53,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:29:53,636 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:29:53,637 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:29:53,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:29:53,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:29:53,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:29:53,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:29:53,640 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:29:53,640 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:29:53,640 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_9c974b07-d314-4e1e-9859-2b9b2866e858/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b1687984206fd71420342d8c308fb8f0bb6aa8eb322759ead9cb78bc76e256a [2022-12-13 13:29:53,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:29:53,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:29:53,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:29:53,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:29:53,860 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:29:53,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-12-13 13:29:56,405 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:29:56,591 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:29:56,592 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2022-12-13 13:29:56,598 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data/2c9b1c61b/5f22e678f2344d92a89c86c76b463cd8/FLAG1020d0fd3 [2022-12-13 13:29:56,969 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/data/2c9b1c61b/5f22e678f2344d92a89c86c76b463cd8 [2022-12-13 13:29:56,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:29:56,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:29:56,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:29:56,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:29:56,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:29:56,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:29:56" (1/1) ... [2022-12-13 13:29:56,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34cc1f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:56, skipping insertion in model container [2022-12-13 13:29:56,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:29:56" (1/1) ... [2022-12-13 13:29:56,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:29:57,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:29:57,136 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_9c974b07-d314-4e1e-9859-2b9b2866e858/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2022-12-13 13:29:57,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:29:57,150 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:29:57,178 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_9c974b07-d314-4e1e-9859-2b9b2866e858/sv-benchmarks/c/float-newlib/float_req_bl_0971.c[4045,4058] [2022-12-13 13:29:57,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:29:57,191 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:29:57,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57 WrapperNode [2022-12-13 13:29:57,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:29:57,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:29:57,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:29:57,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:29:57,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,226 INFO L138 Inliner]: procedures = 20, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2022-12-13 13:29:57,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:29:57,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:29:57,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:29:57,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:29:57,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:29:57,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:29:57,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:29:57,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:29:57,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (1/1) ... [2022-12-13 13:29:57,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:29:57,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:57,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:29:57,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:29:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-12-13 13:29:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 13:29:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:29:57,399 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:29:57,400 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:30:16,995 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:30:17,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:30:17,001 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-12-13 13:30:17,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:17 BoogieIcfgContainer [2022-12-13 13:30:17,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:30:17,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:30:17,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:30:17,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:30:17,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:29:56" (1/3) ... [2022-12-13 13:30:17,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5b3774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:17, skipping insertion in model container [2022-12-13 13:30:17,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:57" (2/3) ... [2022-12-13 13:30:17,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5b3774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:17, skipping insertion in model container [2022-12-13 13:30:17,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:17" (3/3) ... [2022-12-13 13:30:17,009 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2022-12-13 13:30:17,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:30:17,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:30:17,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:30:17,061 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;@27dc53e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:30:17,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:30:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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 13:30:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 13:30:17,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:17,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:17,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:17,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:17,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2022-12-13 13:30:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:30:17,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422780291] [2022-12-13 13:30:17,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:17,082 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 13:30:17,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:30:17,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:17,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:17,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:30:17,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:17,644 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 13:30:17,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:17,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:30:17,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422780291] [2022-12-13 13:30:17,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422780291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:17,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:17,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:30:17,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502026589] [2022-12-13 13:30:17,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:17,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:30:17,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:30:17,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:30:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:30:17,683 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 13:30:17,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:17,701 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2022-12-13 13:30:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:30:17,703 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-12-13 13:30:17,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:17,709 INFO L225 Difference]: With dead ends: 86 [2022-12-13 13:30:17,709 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 13:30:17,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 13:30:17,715 INFO L413 NwaCegarLoop]: 58 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, 58 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 13:30:17,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:30:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 13:30:17,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-13 13:30:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:30:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2022-12-13 13:30:17,739 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2022-12-13 13:30:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:17,740 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2022-12-13 13:30:17,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 13:30:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-12-13 13:30:17,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:30:17,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:17,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:17,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:17,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:17,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:17,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2022-12-13 13:30:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:30:17,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995187687] [2022-12-13 13:30:17,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:17,947 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 13:30:17,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:30:17,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:17,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:18,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:30:18,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:18,724 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 13:30:18,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:18,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:30:18,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995187687] [2022-12-13 13:30:18,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995187687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:18,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:18,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:30:18,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523924639] [2022-12-13 13:30:18,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:18,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:30:18,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:30:18,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:30:18,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:30:18,728 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:30:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:20,384 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2022-12-13 13:30:20,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:30:20,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 13:30:20,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:20,386 INFO L225 Difference]: With dead ends: 51 [2022-12-13 13:30:20,386 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 13:30:20,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 13:30:20,387 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 28 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:20,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 121 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 13:30:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 13:30:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2022-12-13 13:30:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 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 13:30:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2022-12-13 13:30:20,395 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2022-12-13 13:30:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:20,396 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2022-12-13 13:30:20,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:30:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2022-12-13 13:30:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:30:20,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:20,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:20,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 13:30:20,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:20,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:20,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2022-12-13 13:30:20,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:30:20,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653036857] [2022-12-13 13:30:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:20,605 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 13:30:20,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:30:20,609 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:20,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:21,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 13:30:21,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:21,663 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 13:30:21,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:21,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:30:21,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653036857] [2022-12-13 13:30:21,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653036857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:21,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:21,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:30:21,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627227535] [2022-12-13 13:30:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:21,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:30:21,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:30:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:30:21,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:30:21,665 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:30:26,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:29,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:31,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:33,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:36,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:38,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:40,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:41,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:43,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:30:43,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:43,936 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2022-12-13 13:30:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:30:43,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-13 13:30:43,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:43,975 INFO L225 Difference]: With dead ends: 47 [2022-12-13 13:30:43,975 INFO L226 Difference]: Without dead ends: 42 [2022-12-13 13:30:43,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:30:43,977 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 49 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:43,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 157 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 7 Unknown, 0 Unchecked, 22.0s Time] [2022-12-13 13:30:43,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-13 13:30:43,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2022-12-13 13:30:43,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 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 13:30:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2022-12-13 13:30:43,982 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2022-12-13 13:30:43,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:43,982 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2022-12-13 13:30:43,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:30:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2022-12-13 13:30:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 13:30:43,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:43,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:44,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 13:30:44,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:44,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:44,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2022-12-13 13:30:44,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:30:44,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335656025] [2022-12-13 13:30:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:44,189 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 13:30:44,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:30:44,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:44,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 13:30:44,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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 139 [2022-12-13 13:30:44,604 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-12-13 13:30:44,607 INFO L158 Benchmark]: Toolchain (without parser) took 47634.29ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 37.9MB in the end (delta: 20.3MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-12-13 13:30:44,607 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:30:44,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.67ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 44.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:30:44,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.88ms. Allocated memory is still 79.7MB. Free memory was 44.6MB in the beginning and 42.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:30:44,608 INFO L158 Benchmark]: Boogie Preprocessor took 27.58ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:30:44,608 INFO L158 Benchmark]: RCFGBuilder took 19747.91ms. Allocated memory is still 79.7MB. Free memory was 39.8MB in the beginning and 42.1MB in the end (delta: -2.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-12-13 13:30:44,609 INFO L158 Benchmark]: TraceAbstraction took 27602.34ms. Allocated memory is still 79.7MB. Free memory was 41.2MB in the beginning and 37.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-12-13 13:30:44,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.67ms. Allocated memory is still 79.7MB. Free memory was 58.2MB in the beginning and 44.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.88ms. Allocated memory is still 79.7MB. Free memory was 44.6MB in the beginning and 42.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.58ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 19747.91ms. Allocated memory is still 79.7MB. Free memory was 39.8MB in the beginning and 42.1MB in the end (delta: -2.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * TraceAbstraction took 27602.34ms. Allocated memory is still 79.7MB. Free memory was 41.2MB in the beginning and 37.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-13 13:30:44,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c974b07-d314-4e1e-9859-2b9b2866e858/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) with exit command (exit)) Received EOF on stdin. No stderr output.