./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:35:49,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:35:49,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:35:49,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:35:49,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:35:49,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:35:50,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:35:50,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:35:50,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:35:50,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:35:50,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:35:50,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:35:50,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:35:50,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:35:50,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:35:50,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:35:50,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:35:50,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:35:50,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:35:50,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:35:50,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:35:50,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:35:50,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:35:50,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:35:50,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:35:50,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:35:50,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:35:50,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:35:50,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:35:50,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:35:50,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:35:50,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:35:50,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:35:50,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:35:50,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:35:50,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:35:50,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:35:50,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:35:50,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:35:50,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:35:50,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:35:50,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 09:35:50,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:35:50,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:35:50,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:35:50,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:35:50,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:35:50,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:35:50,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:35:50,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:35:50,095 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:35:50,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:35:50,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:35:50,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:35:50,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:35:50,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:35:50,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:35:50,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:35:50,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:35:50,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:35:50,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:35:50,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:35:50,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:35:50,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:35:50,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:35:50,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:35:50,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:35:50,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:35:50,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:35:50,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:35:50,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:35:50,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:35:50,101 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:35:50,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:35:50,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:35:50,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b [2022-11-20 09:35:50,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:35:50,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:35:50,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:35:50,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:35:50,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:35:50,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2022-11-20 09:35:53,784 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:35:54,044 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:35:54,045 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2022-11-20 09:35:54,052 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data/0cd5d066b/5ef8094982cf43ec922733850ee8f6f3/FLAG538bd23f8 [2022-11-20 09:35:54,068 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data/0cd5d066b/5ef8094982cf43ec922733850ee8f6f3 [2022-11-20 09:35:54,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:35:54,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:35:54,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:35:54,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:35:54,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:35:54,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f88c6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54, skipping insertion in model container [2022-11-20 09:35:54,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:35:54,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:35:54,294 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_4d73a87d-15fa-496e-8cf2-781f8481e817/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2022-11-20 09:35:54,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:35:54,337 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:35:54,349 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_4d73a87d-15fa-496e-8cf2-781f8481e817/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2022-11-20 09:35:54,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:35:54,376 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:35:54,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54 WrapperNode [2022-11-20 09:35:54,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:35:54,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:35:54,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:35:54,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:35:54,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,413 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2022-11-20 09:35:54,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:35:54,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:35:54,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:35:54,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:35:54,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,436 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:35:54,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:35:54,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:35:54,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:35:54,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (1/1) ... [2022-11-20 09:35:54,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:35:54,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:35:54,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:35:54,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:35:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:35:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:35:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:35:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:35:54,614 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:35:54,617 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:35:54,765 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:35:54,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:35:54,773 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:35:54,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:35:54 BoogieIcfgContainer [2022-11-20 09:35:54,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:35:54,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:35:54,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:35:54,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:35:54,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:35:54" (1/3) ... [2022-11-20 09:35:54,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263742c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:35:54, skipping insertion in model container [2022-11-20 09:35:54,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:35:54" (2/3) ... [2022-11-20 09:35:54,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263742c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:35:54, skipping insertion in model container [2022-11-20 09:35:54,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:35:54" (3/3) ... [2022-11-20 09:35:54,807 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_interval.c [2022-11-20 09:35:54,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:35:54,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:35:54,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:35:54,976 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;@26a64b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:35:54,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:35:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:35:54,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:35:54,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:35:54,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:35:54,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:35:55,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:35:55,002 INFO L85 PathProgramCache]: Analyzing trace with hash 334453616, now seen corresponding path program 1 times [2022-11-20 09:35:55,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:35:55,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059369537] [2022-11-20 09:35:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:55,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:35:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:35:55,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:35:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059369537] [2022-11-20 09:35:55,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059369537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:35:55,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:35:55,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:35:55,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38531542] [2022-11-20 09:35:55,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:35:55,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:35:55,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:35:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:35:55,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:35:55,326 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:35:55,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:35:55,360 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2022-11-20 09:35:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:35:55,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 09:35:55,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:35:55,374 INFO L225 Difference]: With dead ends: 29 [2022-11-20 09:35:55,375 INFO L226 Difference]: Without dead ends: 12 [2022-11-20 09:35:55,378 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 [2022-11-20 09:35:55,383 INFO L413 NwaCegarLoop]: 17 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, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:35:55,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:35:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-20 09:35:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 09:35:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:35:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-20 09:35:55,424 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 11 [2022-11-20 09:35:55,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:35:55,425 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-20 09:35:55,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:35:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-20 09:35:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:35:55,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:35:55,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:35:55,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:35:55,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:35:55,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:35:55,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1014511986, now seen corresponding path program 1 times [2022-11-20 09:35:55,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:35:55,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384567671] [2022-11-20 09:35:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:35:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:35:55,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:35:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:35:55,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:35:55,505 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:35:55,507 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 09:35:55,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:35:55,514 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 09:35:55,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:35:55,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:35:55 BoogieIcfgContainer [2022-11-20 09:35:55,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:35:55,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:35:55,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:35:55,553 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:35:55,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:35:54" (3/4) ... [2022-11-20 09:35:55,556 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:35:55,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:35:55,557 INFO L158 Benchmark]: Toolchain (without parser) took 1484.76ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 61.7MB in the end (delta: 49.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-20 09:35:55,558 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:35:55,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.26ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 100.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:35:55,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:35:55,560 INFO L158 Benchmark]: Boogie Preprocessor took 24.86ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:35:55,565 INFO L158 Benchmark]: RCFGBuilder took 336.10ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 86.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:35:55,565 INFO L158 Benchmark]: TraceAbstraction took 773.55ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 61.7MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 09:35:55,569 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 142.6MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:35:55,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.26ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 100.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 98.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.86ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.10ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 86.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 773.55ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 61.7MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 142.6MB. Free memory is still 61.7MB. 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someUnaryDOUBLEoperation at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44. Possible FailurePath: [L22] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L49] double d, r; [L51] d = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(d >= 0.1 && d <= 20.0) [L18] COND FALSE !(!cond) VAL [\old(cond)=1, _EPS=1/1000000, cond=1] [L52] RET assume_abort_if_not(d >= 0.1 && d <= 20.0) [L54] CALL, EXPR SqrtR(d) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; VAL [\old(Input)=53, _EPS=1/1000000, Input=53] [L28] COND TRUE Input <= 1.0 [L28] xn = 1.0 VAL [\old(Input)=53, _EPS=1/1000000, Input=53, xn=1] [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 VAL [\old(Input)=53, _EPS=1/1000000, cond=0, i=0, Input=53, xn=1, xn=1] [L35] COND FALSE !(\read(cond)) VAL [\old(Input)=53, _EPS=1/1000000, cond=0, i=0, Input=53, xn=1, xn=1] [L44] return 1.0 / xnp1; VAL [\old(Input)=53, _EPS=1/1000000, cond=0, i=0, Input=53, xn=1, xn=1] [L54] RET, EXPR SqrtR(d) [L54] r = SqrtR(d) [L56] CALL __VERIFIER_assert(r >= 0.3 && r <= 5.) [L20] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L20] reach_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 17 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, 17 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=16occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2022-11-20 09:35:55,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:35:58,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:35:58,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:35:58,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:35:58,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:35:58,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:35:58,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:35:58,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:35:58,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:35:58,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:35:58,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:35:58,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:35:58,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:35:58,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:35:58,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:35:58,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:35:58,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:35:58,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:35:58,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:35:58,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:35:58,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:35:58,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:35:58,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:35:58,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:35:58,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:35:58,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:35:58,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:35:58,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:35:58,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:35:58,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:35:58,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:35:58,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:35:58,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:35:58,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:35:58,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:35:58,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:35:58,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:35:58,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:35:58,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:35:58,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:35:58,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:35:58,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-20 09:35:58,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:35:58,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:35:58,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:35:58,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:35:58,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:35:58,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:35:58,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:35:58,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:35:58,647 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:35:58,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:35:58,648 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:35:58,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:35:58,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:35:58,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:35:58,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:35:58,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:35:58,650 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:35:58,650 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:35:58,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:35:58,651 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:35:58,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:35:58,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:35:58,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:35:58,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:35:58,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:35:58,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:35:58,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:35:58,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:35:58,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:35:58,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:35:58,655 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:35:58,656 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:35:58,656 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:35:58,656 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:35:58,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:35:58,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:35:58,657 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b [2022-11-20 09:35:59,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:35:59,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:35:59,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:35:59,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:35:59,094 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:35:59,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2022-11-20 09:36:02,290 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:36:02,603 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:36:02,604 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2022-11-20 09:36:02,614 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data/515bd24cf/19ee3cf4ac5348579b43ae1c6c5a0ef1/FLAGbb92fcc01 [2022-11-20 09:36:02,638 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/data/515bd24cf/19ee3cf4ac5348579b43ae1c6c5a0ef1 [2022-11-20 09:36:02,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:36:02,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:36:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:02,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:36:02,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:36:02,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:02" (1/1) ... [2022-11-20 09:36:02,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5d80f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:02, skipping insertion in model container [2022-11-20 09:36:02,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:02" (1/1) ... [2022-11-20 09:36:02,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:36:02,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:36:02,941 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_4d73a87d-15fa-496e-8cf2-781f8481e817/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2022-11-20 09:36:02,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:03,018 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:36:03,039 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_4d73a87d-15fa-496e-8cf2-781f8481e817/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2022-11-20 09:36:03,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:03,093 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:36:03,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03 WrapperNode [2022-11-20 09:36:03,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:03,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:03,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:36:03,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:36:03,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,169 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2022-11-20 09:36:03,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:03,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:36:03,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:36:03,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:36:03,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:36:03,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:36:03,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:36:03,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:36:03,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (1/1) ... [2022-11-20 09:36:03,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:03,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:03,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:36:03,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:36:03,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:36:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:36:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:36:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:36:03,496 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:36:03,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:36:12,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:36:12,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:36:12,624 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:36:12,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:12 BoogieIcfgContainer [2022-11-20 09:36:12,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:36:12,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:36:12,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:36:12,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:36:12,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:36:02" (1/3) ... [2022-11-20 09:36:12,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3c1090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:12, skipping insertion in model container [2022-11-20 09:36:12,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:03" (2/3) ... [2022-11-20 09:36:12,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3c1090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:12, skipping insertion in model container [2022-11-20 09:36:12,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:12" (3/3) ... [2022-11-20 09:36:12,638 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_interval.c [2022-11-20 09:36:12,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:36:12,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:36:12,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:36:12,723 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;@6f08762d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:36:12,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:36:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:12,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:36:12,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:12,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:12,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:36:12,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:12,749 INFO L85 PathProgramCache]: Analyzing trace with hash 334453616, now seen corresponding path program 1 times [2022-11-20 09:36:12,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:36:12,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217006095] [2022-11-20 09:36:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:12,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:36:12,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:36:12,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:36:12,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:36:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:14,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 09:36:14,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:14,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:14,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:36:14,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:36:14,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217006095] [2022-11-20 09:36:14,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217006095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:14,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:14,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:36:14,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742801750] [2022-11-20 09:36:14,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:14,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:36:14,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:36:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:36:14,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:36:14,689 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:14,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:14,707 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2022-11-20 09:36:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:36:14,709 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 09:36:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:14,716 INFO L225 Difference]: With dead ends: 29 [2022-11-20 09:36:14,716 INFO L226 Difference]: Without dead ends: 12 [2022-11-20 09:36:14,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:36:14,722 INFO L413 NwaCegarLoop]: 17 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, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:14,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:36:14,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-20 09:36:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 09:36:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-20 09:36:14,754 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 11 [2022-11-20 09:36:14,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:14,754 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-20 09:36:14,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-20 09:36:14,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:36:14,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:14,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:14,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:36:14,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:36:14,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:36:14,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:14,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1014511986, now seen corresponding path program 1 times [2022-11-20 09:36:14,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:36:14,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49664601] [2022-11-20 09:36:14,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:14,971 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:36:14,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:36:14,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:36:14,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:36:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:16,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:36:16,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:17,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:36:17,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:36:17,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49664601] [2022-11-20 09:36:17,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49664601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:17,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:17,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:36:17,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842043910] [2022-11-20 09:36:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:17,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:36:17,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:36:17,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:36:17,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:36:17,561 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:20,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:22,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:26,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:29,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:31,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:36:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:36:31,737 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-20 09:36:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:36:31,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 09:36:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:36:31,739 INFO L225 Difference]: With dead ends: 19 [2022-11-20 09:36:31,740 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 09:36:31,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:36:31,742 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:36:31,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 5 Unknown, 0 Unchecked, 14.2s Time] [2022-11-20 09:36:31,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 09:36:31,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-20 09:36:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-20 09:36:31,754 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-20 09:36:31,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:36:31,754 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-20 09:36:31,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-20 09:36:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:36:31,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:36:31,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:31,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:36:31,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:36:31,973 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:36:31,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:31,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1505447948, now seen corresponding path program 1 times [2022-11-20 09:36:31,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:36:31,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289672930] [2022-11-20 09:36:31,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:31,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:36:31,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:36:31,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:36:31,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:36:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:39,962 WARN L261 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 09:36:39,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:48,093 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:36:58,100 WARN L837 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) c_~_EPS~0) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= |c_ULTIMATE.start_SqrtR_~xn~0#1| (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-20 09:37:04,820 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:10,089 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 16 DAG size of output: 1 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:15,497 WARN L233 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:20,771 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:25,885 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:31,036 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:36,310 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:41,512 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:46,774 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:55,462 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:37:58,103 WARN L837 $PredicateComparison]: unable to prove that (and (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)))) (let ((.cse3 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse5)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (or (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse2) (not (let ((.cse4 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode .cse3 .cse4) (fp.mul c_currentRoundingMode .cse5 .cse4))))))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv0 32))) (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse6 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse6 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (let ((.cse7 (fp.add c_currentRoundingMode .cse6 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode .cse3 .cse7) (fp.mul c_currentRoundingMode .cse5 .cse7))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse2)))) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv1 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-20 09:38:03,359 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:08,626 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:13,891 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:19,336 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:21,658 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (= .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (not (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse3 (fp.add c_currentRoundingMode .cse1 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse2) .cse3) (fp.mul c_currentRoundingMode .cse2 .cse3)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-20 09:38:28,056 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:34,001 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:40,415 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:46,857 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:38:49,418 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp.div c_currentRoundingMode .cse0 .cse1) |c_ULTIMATE.start_SqrtR_#res#1|) (not (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse3 (fp.add c_currentRoundingMode .cse1 .cse1))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse2) .cse3) (fp.mul c_currentRoundingMode .cse2 .cse3)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-20 09:39:01,005 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:07,405 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:13,228 WARN L233 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:19,567 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:28,445 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:34,200 WARN L233 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:40,659 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:47,032 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:39:55,952 WARN L233 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:02,343 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:08,724 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:15,132 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:21,479 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:25,315 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))) (.cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (.cse8 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse8 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse4 (fp.div roundNearestTiesToEven .cse8 .cse3))) (and (not (let ((.cse1 (fp.add roundNearestTiesToEven .cse3 .cse3))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse1) (fp.mul roundNearestTiesToEven .cse2 .cse1)))) (fp.geq .cse4 .cse5) (fp.leq .cse4 .cse6) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse7) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse8)))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse10 (fp.div roundNearestTiesToEven .cse8 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (let ((.cse9 (fp.add roundNearestTiesToEven .cse10 .cse10))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse9) (fp.mul roundNearestTiesToEven .cse2 .cse9)))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse7) (not (fp.geq (fp.div roundNearestTiesToEven .cse8 .cse10) .cse5)) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse8))))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse12 (fp.div roundNearestTiesToEven .cse8 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (let ((.cse11 (fp.add roundNearestTiesToEven .cse12 .cse12))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse11) (fp.mul roundNearestTiesToEven .cse2 .cse11)))) (not (fp.leq (fp.div roundNearestTiesToEven .cse8 .cse12) .cse6)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse7) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse8)))))))))) is different from false [2022-11-20 09:40:34,099 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:40,417 WARN L233 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:46,098 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:40:52,366 WARN L233 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:41:01,129 WARN L233 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:41:06,883 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:41:13,105 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:41:19,101 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-20 09:41:22,130 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) (let ((.cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse5 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (let ((.cse1 (fp.add roundNearestTiesToEven .cse3 .cse3))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse1) (fp.mul roundNearestTiesToEven .cse2 .cse1)))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4) (not (fp.geq (fp.div roundNearestTiesToEven .cse5 .cse3) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5))))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse5 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (let ((.cse6 (fp.add roundNearestTiesToEven .cse7 .cse7))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse6) (fp.mul roundNearestTiesToEven .cse2 .cse6)))) (not (fp.leq (fp.div roundNearestTiesToEven .cse5 .cse7) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5)))))))) is different from false [2022-11-20 09:41:24,414 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) (let ((.cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse5 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (let ((.cse1 (fp.add roundNearestTiesToEven .cse3 .cse3))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse1) (fp.mul roundNearestTiesToEven .cse2 .cse1)))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4) (not (fp.geq (fp.div roundNearestTiesToEven .cse5 .cse3) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5))))) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse5 |ULTIMATE.start_SqrtR_~Input#1|))) (and (not (let ((.cse6 (fp.add roundNearestTiesToEven .cse7 .cse7))) (fp.gt (fp.mul roundNearestTiesToEven .cse0 .cse6) (fp.mul roundNearestTiesToEven .cse2 .cse6)))) (not (fp.leq (fp.div roundNearestTiesToEven .cse5 .cse7) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse5)))))))) is different from true [2022-11-20 09:41:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:41:24,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:41:24,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:41:24,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289672930] [2022-11-20 09:41:24,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289672930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:41:24,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:41:24,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 09:41:24,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467771859] [2022-11-20 09:41:24,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:41:24,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:41:24,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:41:24,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:41:24,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=23, Unknown=7, NotChecked=78, Total=132 [2022-11-20 09:41:24,418 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:41:28,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:41:31,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:41:34,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 09:41:34,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:41:34,791 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-20 09:41:35,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:41:35,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 09:41:35,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:41:35,167 INFO L225 Difference]: With dead ends: 20 [2022-11-20 09:41:35,167 INFO L226 Difference]: Without dead ends: 15 [2022-11-20 09:41:35,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=36, Invalid=37, Unknown=7, NotChecked=102, Total=182 [2022-11-20 09:41:35,169 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-20 09:41:35,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 41 Unchecked, 8.8s Time] [2022-11-20 09:41:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-20 09:41:35,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-20 09:41:35,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:41:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-20 09:41:35,177 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-11-20 09:41:35,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:41:35,177 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-20 09:41:35,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:41:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 09:41:35,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 09:41:35,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:41:35,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:41:35,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:41:35,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:41:35,378 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:41:35,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:41:35,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1436755179, now seen corresponding path program 1 times [2022-11-20 09:41:35,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:41:35,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47945861] [2022-11-20 09:41:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:41:35,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:41:35,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:41:35,382 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:41:35,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:41:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:41:50,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 09:41:50,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:42:38,941 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0) (= (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 15.0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_SqrtR_~Input#1| .cse0) .cse0) (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) |ULTIMATE.start_SqrtR_~Input#1|) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 8.0)) |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.geq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10.0))))) (let ((.cse3 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| .cse0))) (.cse4 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)))) (let ((.cse1 (fp.gt .cse3 .cse4)) (.cse2 (fp.lt .cse3 (fp.neg .cse4)))) (or (and (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv1 32)) (or .cse1 .cse2)) (and (not .cse1) (not .cse2) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-11-20 09:42:41,004 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0) (= (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 15.0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_SqrtR_~Input#1| .cse0) .cse0) (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) |ULTIMATE.start_SqrtR_~Input#1|) .cse0) .cse0))))) ((_ to_fp 11 53) c_currentRoundingMode 8.0)) |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.geq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10.0))))) (let ((.cse3 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| .cse0))) (.cse4 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)))) (let ((.cse1 (fp.gt .cse3 .cse4)) (.cse2 (fp.lt .cse3 (fp.neg .cse4)))) (or (and (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv1 32)) (or .cse1 .cse2)) (and (not .cse1) (not .cse2) (= |c_ULTIMATE.start_SqrtR_~cond~0#1| (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2022-11-20 09:43:10,053 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| .cse2))) (.cse1 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)))) (and (not (fp.gt .cse0 .cse1)) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse2) (= (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 15.0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_SqrtR_~Input#1| .cse2) .cse2) (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) |ULTIMATE.start_SqrtR_~Input#1|) .cse2) .cse2))))) ((_ to_fp 11 53) c_currentRoundingMode 8.0)) |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.geq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10.0))))) (not (fp.lt .cse0 (fp.neg .cse1))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2022-11-20 09:43:12,117 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) (fp.sub c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| .cse2))) (.cse1 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0)) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xnp1~0#1| |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)))) (and (not (fp.gt .cse0 .cse1)) (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse2) (= (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 15.0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_SqrtR_~Input#1| .cse2) .cse2) (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) |ULTIMATE.start_SqrtR_~Input#1|) .cse2) .cse2))))) ((_ to_fp 11 53) c_currentRoundingMode 8.0)) |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.geq |ULTIMATE.start_SqrtR_~Input#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10.0))))) (not (fp.lt .cse0 (fp.neg .cse1))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2022-11-20 09:43:13,354 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-20 09:43:13,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:43:13,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47945861] [2022-11-20 09:43:13,356 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-20 09:43:13,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-20 09:43:13,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:43:13,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:43:13,558 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:620) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:370) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:800) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:282) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: 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) ... 67 more [2022-11-20 09:43:13,563 INFO L158 Benchmark]: Toolchain (without parser) took 430919.25ms. Allocated memory is still 79.7MB. Free memory was 58.3MB in the beginning and 53.1MB in the end (delta: 5.3MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-11-20 09:43:13,564 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:43:13,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.45ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 47.1MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 09:43:13,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.57ms. Allocated memory is still 79.7MB. Free memory was 47.1MB in the beginning and 45.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:43:13,565 INFO L158 Benchmark]: Boogie Preprocessor took 70.76ms. Allocated memory is still 79.7MB. Free memory was 45.5MB in the beginning and 44.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:43:13,565 INFO L158 Benchmark]: RCFGBuilder took 9383.41ms. Allocated memory is still 79.7MB. Free memory was 44.0MB in the beginning and 52.6MB in the end (delta: -8.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-20 09:43:13,565 INFO L158 Benchmark]: TraceAbstraction took 420933.66ms. Allocated memory is still 79.7MB. Free memory was 52.0MB in the beginning and 53.1MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:43:13,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.45ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 47.1MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.57ms. Allocated memory is still 79.7MB. Free memory was 47.1MB in the beginning and 45.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.76ms. Allocated memory is still 79.7MB. Free memory was 45.5MB in the beginning and 44.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9383.41ms. Allocated memory is still 79.7MB. Free memory was 44.0MB in the beginning and 52.6MB in the end (delta: -8.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * TraceAbstraction took 420933.66ms. Allocated memory is still 79.7MB. Free memory was 52.0MB in the beginning and 53.1MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d73a87d-15fa-496e-8cf2-781f8481e817/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")