./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL --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 a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:14:30,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:14:30,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:14:30,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:14:30,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:14:30,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:14:30,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:14:30,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:14:30,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:14:30,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:14:30,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:14:30,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:14:30,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:14:30,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:14:30,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:14:30,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:14:30,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:14:30,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:14:30,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:14:30,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:14:30,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:14:30,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:14:30,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:14:30,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:14:30,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:14:30,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:14:30,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:14:30,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:14:30,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:14:30,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:14:30,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:14:30,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:14:30,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:14:30,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:14:30,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:14:30,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:14:30,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:14:30,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:14:30,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:14:30,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:14:30,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:14:30,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:14:30,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:14:30,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:14:30,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:14:30,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:14:30,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:14:30,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:14:30,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:14:30,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:14:30,350 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:14:30,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:14:30,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:14:30,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:14:30,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:14:30,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:14:30,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:14:30,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:14:30,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:14:30,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:14:30,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:14:30,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:14:30,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:14:30,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:14:30,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:14:30,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:14:30,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:14:30,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:14:30,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:14:30,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:14:30,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:14:30,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:14:30,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:14:30,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:14:30,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:14:30,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:14:30,359 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_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2021-11-19 04:14:30,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:14:30,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:14:30,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:14:30,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:14:30,755 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:14:30,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-11-19 04:14:30,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/9eee8cc3b/f5404a32a22741eea6c436c444329a3f/FLAGda1275ac8 [2021-11-19 04:14:31,372 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:14:31,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-11-19 04:14:31,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/9eee8cc3b/f5404a32a22741eea6c436c444329a3f/FLAGda1275ac8 [2021-11-19 04:14:31,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/9eee8cc3b/f5404a32a22741eea6c436c444329a3f [2021-11-19 04:14:31,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:14:31,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:14:31,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:14:31,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:14:31,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:14:31,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:31" (1/1) ... [2021-11-19 04:14:31,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c58f8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:31, skipping insertion in model container [2021-11-19 04:14:31,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:31" (1/1) ... [2021-11-19 04:14:31,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:14:31,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:14:32,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-11-19 04:14:32,028 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:14:32,041 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:14:32,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-11-19 04:14:32,098 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:14:32,113 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:14:32,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32 WrapperNode [2021-11-19 04:14:32,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:14:32,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:14:32,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:14:32,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:14:32,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,173 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 186 [2021-11-19 04:14:32,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:14:32,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:14:32,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:14:32,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:14:32,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:14:32,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:14:32,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:14:32,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:14:32,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (1/1) ... [2021-11-19 04:14:32,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:14:32,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:14:32,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:14:32,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:14:32,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:14:32,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:14:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:14:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:14:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 04:14:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 04:14:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:14:32,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:14:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:14:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-19 04:14:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:14:32,471 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:14:32,473 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:14:32,758 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:14:32,766 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:14:32,766 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-19 04:14:32,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:32 BoogieIcfgContainer [2021-11-19 04:14:32,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:14:32,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:14:32,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:14:32,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:14:32,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:31" (1/3) ... [2021-11-19 04:14:32,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4067685e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:32, skipping insertion in model container [2021-11-19 04:14:32,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:32" (2/3) ... [2021-11-19 04:14:32,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4067685e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:32, skipping insertion in model container [2021-11-19 04:14:32,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:32" (3/3) ... [2021-11-19 04:14:32,781 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2021-11-19 04:14:32,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:14:32,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:14:32,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:14:32,892 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:14:32,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:14:32,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:14:32,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:32,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:32,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:32,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2021-11-19 04:14:32,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:14:32,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048336956] [2021-11-19 04:14:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:32,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:14:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:33,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:14:33,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048336956] [2021-11-19 04:14:33,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048336956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:33,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:33,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:14:33,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027369252] [2021-11-19 04:14:33,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:33,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:14:33,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:14:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:14:33,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:14:33,245 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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) [2021-11-19 04:14:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:33,285 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2021-11-19 04:14:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:14:33,288 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 [2021-11-19 04:14:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:33,300 INFO L225 Difference]: With dead ends: 93 [2021-11-19 04:14:33,300 INFO L226 Difference]: Without dead ends: 44 [2021-11-19 04:14:33,304 INFO L932 BasicCegarLoop]: 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 [2021-11-19 04:14:33,310 INFO L933 BasicCegarLoop]: 65 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, 65 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 [2021-11-19 04:14:33,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:14:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-19 04:14:33,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-19 04:14:33,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-11-19 04:14:33,369 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2021-11-19 04:14:33,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:33,370 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-19 04:14:33,370 INFO L471 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) [2021-11-19 04:14:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2021-11-19 04:14:33,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 04:14:33,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:33,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:33,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:14:33,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:33,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:33,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2021-11-19 04:14:33,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:14:33,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146099631] [2021-11-19 04:14:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:33,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:14:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:14:33,509 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:14:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:14:33,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:14:33,635 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:14:33,638 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:14:33,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:14:33,650 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 04:14:33,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:14:33,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:14:33 BoogieIcfgContainer [2021-11-19 04:14:33,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:14:33,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:14:33,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:14:33,715 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:14:33,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:32" (3/4) ... [2021-11-19 04:14:33,720 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:14:33,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:14:33,723 INFO L158 Benchmark]: Toolchain (without parser) took 2006.11ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 55.5MB in the beginning and 70.4MB in the end (delta: -15.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-19 04:14:33,723 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:14:33,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.73ms. Allocated memory is still 90.2MB. Free memory was 55.2MB in the beginning and 63.4MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:14:33,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.26ms. Allocated memory is still 90.2MB. Free memory was 63.4MB in the beginning and 61.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:14:33,734 INFO L158 Benchmark]: Boogie Preprocessor took 40.50ms. Allocated memory is still 90.2MB. Free memory was 61.4MB in the beginning and 59.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:14:33,734 INFO L158 Benchmark]: RCFGBuilder took 553.48ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 44.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 04:14:33,735 INFO L158 Benchmark]: TraceAbstraction took 941.10ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 44.3MB in the beginning and 70.4MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:14:33,736 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 113.2MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:14:33,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.73ms. Allocated memory is still 90.2MB. Free memory was 55.2MB in the beginning and 63.4MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.26ms. Allocated memory is still 90.2MB. Free memory was 63.4MB in the beginning and 61.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.50ms. Allocated memory is still 90.2MB. Free memory was 61.4MB in the beginning and 59.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 553.48ms. Allocated memory is still 90.2MB. Free memory was 59.3MB in the beginning and 44.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 941.10ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 44.3MB in the beginning and 70.4MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.94ms. Allocated memory is still 113.2MB. Free memory is still 70.4MB. 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 128, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={6:0}] [L128] float x = -0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967296, \old(y)=4294967297, one_fmod=1, x=4294967296, y=4294967297, Zero_fmod={6:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967296, \old(y)=4294967297, one_fmod=1, sx=-1, x=4294967296, y=4294967297, Zero_fmod={6:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967296, \old(y)=4294967297, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=4294967296, y=4294967297, Zero_fmod={6:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_fmod=1, res=4294967298, res == -0.0f && __signbit_float(res) == 1=0, x=4294967296, y=4294967297, Zero_fmod={6:0}] [L136] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L137] reach_error() VAL [one_fmod=1, res=4294967298, x=4294967296, y=4294967297, Zero_fmod={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 65 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, 65 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=48occurred 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, 24 NumberOfCodeBlocks, 24 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 [2021-11-19 04:14:33,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL --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 a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:14:36,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:14:36,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:14:36,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:14:36,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:14:36,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:14:36,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:14:36,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:14:36,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:14:36,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:14:36,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:14:36,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:14:36,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:14:36,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:14:36,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:14:36,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:14:36,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:14:36,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:14:36,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:14:36,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:14:36,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:14:36,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:14:36,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:14:36,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:14:36,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:14:36,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:14:36,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:14:36,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:14:36,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:14:36,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:14:36,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:14:36,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:14:36,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:14:36,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:14:36,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:14:36,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:14:36,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:14:36,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:14:36,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:14:36,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:14:36,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:14:36,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 04:14:36,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:14:36,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:14:36,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:14:36,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:14:36,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:14:36,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:14:36,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:14:36,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:14:36,742 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:14:36,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:14:36,742 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:14:36,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:14:36,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:14:36,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:14:36,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:14:36,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:14:36,744 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:14:36,744 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:14:36,744 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:14:36,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:14:36,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:14:36,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:14:36,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:14:36,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:14:36,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:14:36,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:14:36,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:14:36,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:14:36,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:14:36,750 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:14:36,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:14:36,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:14:36,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:14:36,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:14:36,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:14:36,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:14:36,753 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_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2021-11-19 04:14:37,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:14:37,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:14:37,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:14:37,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:14:37,264 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:14:37,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-11-19 04:14:37,360 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/7f810098b/ac176c11ba54448aacca53932dd86cc2/FLAG3901fc0f8 [2021-11-19 04:14:37,985 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:14:37,985 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-11-19 04:14:37,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/7f810098b/ac176c11ba54448aacca53932dd86cc2/FLAG3901fc0f8 [2021-11-19 04:14:38,313 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/data/7f810098b/ac176c11ba54448aacca53932dd86cc2 [2021-11-19 04:14:38,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:14:38,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:14:38,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:14:38,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:14:38,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:14:38,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50181fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38, skipping insertion in model container [2021-11-19 04:14:38,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:14:38,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:14:38,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-11-19 04:14:38,579 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:14:38,595 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:14:38,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2021-11-19 04:14:38,688 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:14:38,711 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:14:38,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38 WrapperNode [2021-11-19 04:14:38,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:14:38,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:14:38,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:14:38,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:14:38,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,773 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 186 [2021-11-19 04:14:38,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:14:38,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:14:38,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:14:38,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:14:38,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:14:38,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:14:38,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:14:38,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:14:38,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (1/1) ... [2021-11-19 04:14:38,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:14:38,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:14:38,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:14:38,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:14:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:14:38,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-19 04:14:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 04:14:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:14:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 04:14:38,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 04:14:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:14:38,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:14:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 04:14:38,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 04:14:38,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:14:39,026 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:14:39,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:14:41,664 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:14:41,672 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:14:41,672 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-19 04:14:41,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:41 BoogieIcfgContainer [2021-11-19 04:14:41,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:14:41,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:14:41,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:14:41,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:14:41,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:38" (1/3) ... [2021-11-19 04:14:41,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770a909f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:41, skipping insertion in model container [2021-11-19 04:14:41,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:38" (2/3) ... [2021-11-19 04:14:41,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770a909f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:41, skipping insertion in model container [2021-11-19 04:14:41,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:41" (3/3) ... [2021-11-19 04:14:41,685 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2021-11-19 04:14:41,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:14:41,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:14:41,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:14:41,759 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:14:41,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:14:41,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:14:41,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:41,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:41,791 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:41,798 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2021-11-19 04:14:41,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:41,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561297146] [2021-11-19 04:14:41,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:41,814 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:41,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:41,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:41,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:14:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:42,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 04:14:42,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:42,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:42,416 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:42,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561297146] [2021-11-19 04:14:42,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561297146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:42,418 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:42,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 04:14:42,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596202414] [2021-11-19 04:14:42,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:42,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:14:42,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:42,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:14:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:14:42,469 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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) [2021-11-19 04:14:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:42,512 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2021-11-19 04:14:42,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:14:42,516 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 [2021-11-19 04:14:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:42,529 INFO L225 Difference]: With dead ends: 93 [2021-11-19 04:14:42,529 INFO L226 Difference]: Without dead ends: 44 [2021-11-19 04:14:42,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:14:42,539 INFO L933 BasicCegarLoop]: 65 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, 65 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 [2021-11-19 04:14:42,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:14:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-19 04:14:42,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-19 04:14:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:42,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-11-19 04:14:42,618 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2021-11-19 04:14:42,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:42,618 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-19 04:14:42,618 INFO L471 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) [2021-11-19 04:14:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2021-11-19 04:14:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 04:14:42,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:42,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:42,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:42,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:42,847 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:42,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2021-11-19 04:14:42,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:42,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504456593] [2021-11-19 04:14:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:42,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:42,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:42,852 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:42,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:14:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:43,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 04:14:43,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:43,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-19 04:14:43,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-11-19 04:14:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:44,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:45,601 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:45,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504456593] [2021-11-19 04:14:45,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504456593] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:45,602 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:45,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 04:14:45,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405550038] [2021-11-19 04:14:45,603 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:45,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 04:14:45,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:45,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 04:14:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:14:45,606 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:46,340 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2021-11-19 04:14:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:14:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 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 13 [2021-11-19 04:14:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:46,343 INFO L225 Difference]: With dead ends: 53 [2021-11-19 04:14:46,343 INFO L226 Difference]: Without dead ends: 44 [2021-11-19 04:14:46,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-19 04:14:46,346 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 9 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:46,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 348 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 85 Unchecked, 0.5s Time] [2021-11-19 04:14:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-19 04:14:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-19 04:14:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2021-11-19 04:14:46,356 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 13 [2021-11-19 04:14:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:46,357 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2021-11-19 04:14:46,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2021-11-19 04:14:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 04:14:46,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:46,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:46,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:46,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:46,578 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1911951893, now seen corresponding path program 1 times [2021-11-19 04:14:46,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:46,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898815013] [2021-11-19 04:14:46,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:46,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:46,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:46,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:46,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:14:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:46,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:14:46,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:46,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:47,104 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:47,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898815013] [2021-11-19 04:14:47,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898815013] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:47,105 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:47,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-19 04:14:47,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810015403] [2021-11-19 04:14:47,105 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:47,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 04:14:47,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 04:14:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:14:47,107 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:47,775 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2021-11-19 04:14:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:14:47,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 14 [2021-11-19 04:14:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:47,778 INFO L225 Difference]: With dead ends: 65 [2021-11-19 04:14:47,778 INFO L226 Difference]: Without dead ends: 62 [2021-11-19 04:14:47,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-19 04:14:47,783 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 270 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:47,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 169 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:14:47,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-19 04:14:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2021-11-19 04:14:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2021-11-19 04:14:47,804 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 14 [2021-11-19 04:14:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:47,804 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2021-11-19 04:14:47,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2021-11-19 04:14:47,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 04:14:47,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:47,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:47,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:48,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:48,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:48,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 791016935, now seen corresponding path program 1 times [2021-11-19 04:14:48,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:48,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146630107] [2021-11-19 04:14:48,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:48,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:48,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:48,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 04:14:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:48,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 04:14:48,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:48,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:49,249 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:49,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146630107] [2021-11-19 04:14:49,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146630107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:49,250 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:49,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 04:14:49,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984108121] [2021-11-19 04:14:49,250 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:49,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 04:14:49,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:49,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 04:14:49,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:14:49,252 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:49,559 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2021-11-19 04:14:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:14:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 15 [2021-11-19 04:14:49,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:49,561 INFO L225 Difference]: With dead ends: 55 [2021-11-19 04:14:49,561 INFO L226 Difference]: Without dead ends: 46 [2021-11-19 04:14:49,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-11-19 04:14:49,564 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 18 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:49,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 293 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 56 Unchecked, 0.2s Time] [2021-11-19 04:14:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-19 04:14:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-11-19 04:14:49,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2021-11-19 04:14:49,574 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 15 [2021-11-19 04:14:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:49,574 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2021-11-19 04:14:49,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2021-11-19 04:14:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 04:14:49,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:49,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:49,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:49,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:49,789 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:49,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:49,790 INFO L85 PathProgramCache]: Analyzing trace with hash -645654976, now seen corresponding path program 1 times [2021-11-19 04:14:49,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:49,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938503372] [2021-11-19 04:14:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:49,791 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:49,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:49,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:49,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 04:14:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:49,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:14:49,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:50,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:51,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:51,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:51,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938503372] [2021-11-19 04:14:51,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938503372] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:51,165 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:51,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2021-11-19 04:14:51,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011179192] [2021-11-19 04:14:51,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:51,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 04:14:51,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:51,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 04:14:51,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-11-19 04:14:51,167 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:52,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:52,323 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2021-11-19 04:14:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 04:14:52,324 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-19 04:14:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:52,325 INFO L225 Difference]: With dead ends: 62 [2021-11-19 04:14:52,325 INFO L226 Difference]: Without dead ends: 53 [2021-11-19 04:14:52,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2021-11-19 04:14:52,327 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 212 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:52,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 535 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 27 Unchecked, 0.6s Time] [2021-11-19 04:14:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-19 04:14:52,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-11-19 04:14:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-11-19 04:14:52,336 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 18 [2021-11-19 04:14:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:52,336 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-11-19 04:14:52,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-11-19 04:14:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-19 04:14:52,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:52,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:52,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 04:14:52,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:52,558 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:52,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:52,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1896589553, now seen corresponding path program 1 times [2021-11-19 04:14:52,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:52,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584435152] [2021-11-19 04:14:52,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:52,560 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:52,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:52,562 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:52,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 04:14:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:52,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 04:14:52,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:52,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:53,353 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:53,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584435152] [2021-11-19 04:14:53,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584435152] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:53,354 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:53,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:14:53,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735150113] [2021-11-19 04:14:53,354 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:53,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:14:53,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:53,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:14:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:14:53,356 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:53,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:53,626 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2021-11-19 04:14:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:14:53,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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 24 [2021-11-19 04:14:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:53,631 INFO L225 Difference]: With dead ends: 83 [2021-11-19 04:14:53,631 INFO L226 Difference]: Without dead ends: 53 [2021-11-19 04:14:53,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:14:53,633 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 25 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:53,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 300 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 11 Unchecked, 0.1s Time] [2021-11-19 04:14:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-19 04:14:53,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-11-19 04:14:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-11-19 04:14:53,640 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 24 [2021-11-19 04:14:53,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:53,641 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-11-19 04:14:53,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:53,650 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-11-19 04:14:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 04:14:53,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:53,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:53,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:53,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:53,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:53,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:53,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1844332961, now seen corresponding path program 1 times [2021-11-19 04:14:53,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:53,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476169301] [2021-11-19 04:14:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:53,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:53,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:53,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:53,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 04:14:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:53,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 04:14:53,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:54,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:55,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:55,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:55,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476169301] [2021-11-19 04:14:55,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476169301] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:55,221 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:55,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 04:14:55,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682860757] [2021-11-19 04:14:55,221 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:55,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 04:14:55,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:55,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 04:14:55,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:14:55,224 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:55,895 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2021-11-19 04:14:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:14:55,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 25 [2021-11-19 04:14:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:55,900 INFO L225 Difference]: With dead ends: 71 [2021-11-19 04:14:55,900 INFO L226 Difference]: Without dead ends: 44 [2021-11-19 04:14:55,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-19 04:14:55,902 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 21 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:55,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 298 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 32 Unchecked, 0.5s Time] [2021-11-19 04:14:55,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-19 04:14:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-19 04:14:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-11-19 04:14:55,910 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 25 [2021-11-19 04:14:55,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:55,911 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-11-19 04:14:55,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:55,911 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2021-11-19 04:14:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:14:55,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:55,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:55,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:56,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:56,121 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:56,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:56,122 INFO L85 PathProgramCache]: Analyzing trace with hash 101160342, now seen corresponding path program 1 times [2021-11-19 04:14:56,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:56,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413650294] [2021-11-19 04:14:56,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:56,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:56,126 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:56,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 04:14:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:56,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:14:56,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:56,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:56,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:56,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413650294] [2021-11-19 04:14:56,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413650294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:14:56,791 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:14:56,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:14:56,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80502351] [2021-11-19 04:14:56,791 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:56,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:14:56,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:56,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:14:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:14:56,793 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:56,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:56,855 INFO L93 Difference]: Finished difference Result 97 states and 125 transitions. [2021-11-19 04:14:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:14:56,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 26 [2021-11-19 04:14:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:56,857 INFO L225 Difference]: With dead ends: 97 [2021-11-19 04:14:56,857 INFO L226 Difference]: Without dead ends: 70 [2021-11-19 04:14:56,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:14:56,859 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 34 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:56,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 167 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 17 Unchecked, 0.1s Time] [2021-11-19 04:14:56,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-19 04:14:56,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 45. [2021-11-19 04:14:56,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:56,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-11-19 04:14:56,867 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 26 [2021-11-19 04:14:56,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:56,868 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-11-19 04:14:56,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:56,868 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-11-19 04:14:56,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-19 04:14:56,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:14:56,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:14:56,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:14:57,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:57,086 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:14:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:14:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash 305949144, now seen corresponding path program 1 times [2021-11-19 04:14:57,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:14:57,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418638127] [2021-11-19 04:14:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:14:57,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:14:57,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:14:57,088 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:14:57,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 04:14:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:14:57,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:14:57,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:14:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:14:58,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:14:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:14:59,206 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:14:59,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418638127] [2021-11-19 04:14:59,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418638127] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:14:59,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:14:59,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2021-11-19 04:14:59,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032082673] [2021-11-19 04:14:59,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:14:59,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:14:59,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:14:59,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:14:59,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-19 04:14:59,208 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:14:59,403 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-11-19 04:14:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:14:59,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 28 [2021-11-19 04:14:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:14:59,404 INFO L225 Difference]: With dead ends: 45 [2021-11-19 04:14:59,404 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 04:14:59,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:14:59,407 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:14:59,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 41 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2021-11-19 04:14:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 04:14:59,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 04:14:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:59,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 04:14:59,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-11-19 04:14:59,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:14:59,410 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:14:59,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:14:59,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:14:59,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 04:14:59,413 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:14:59,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-19 04:14:59,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:14:59,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 04:15:00,257 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-19 04:15:00,257 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-19 04:15:00,257 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-19 04:15:00,258 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-19 04:15:00,258 INFO L854 garLoopResultBuilder]: At program point L118(lines 109 119) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) |ULTIMATE.start_main_#t~short16#1| (= .cse0 |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|))) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-11-19 04:15:00,258 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-19 04:15:00,258 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-19 04:15:00,258 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-19 04:15:00,258 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 04:15:00,258 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2021-11-19 04:15:00,259 INFO L854 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) |ULTIMATE.start_main_#t~short16#1| (= .cse0 |ULTIMATE.start_fmod_float_#res#1|) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-11-19 04:15:00,259 INFO L858 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (or (fp.lt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)) (fp.gt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24))) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-11-19 04:15:00,260 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-19 04:15:00,260 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (= .cse0 |ULTIMATE.start_fmod_float_#res#1|) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-19 04:15:00,261 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-11-19 04:15:00,261 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-19 04:15:00,262 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: (let ((.cse1 (fp.neg (_ +zero 8 24)))) (and (exists ((|v_ULTIMATE.start_fmod_float_~hy~0#1_47| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_~hx~0#1_62| (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_47|))) (and (not (bvslt (bvxor |v_ULTIMATE.start_fmod_float_~hx~0#1_62| (bvand (_ bv2147483648 32) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|)) .cse0)) (= |ULTIMATE.start_fmod_float_~i~0#1| (bvshl .cse0 (_ bv8 32))) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|)))))) (= |ULTIMATE.start_fmod_float_~x#1| .cse1) (= .cse1 |ULTIMATE.start_main_~x~0#1|))) [2021-11-19 04:15:00,262 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-19 04:15:00,262 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-19 04:15:00,262 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 04:15:00,262 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-19 04:15:00,262 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-19 04:15:00,262 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-19 04:15:00,262 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-19 04:15:00,263 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-19 04:15:00,263 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-19 04:15:00,263 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-19 04:15:00,263 INFO L861 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2021-11-19 04:15:00,263 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-19 04:15:00,263 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (exists ((|v_ULTIMATE.start_fmod_float_~hy~0#1_47| (_ BitVec 32))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_47|) |ULTIMATE.start_fmod_float_~hy~0#1|)) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_62| (_ BitVec 32))) (and (not (bvslt (bvxor |v_ULTIMATE.start_fmod_float_~hx~0#1_62| (bvand (_ bv2147483648 32) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|)) |ULTIMATE.start_fmod_float_~hy~0#1|)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_62|))))) (= .cse0 |ULTIMATE.start_main_~x~0#1|))) [2021-11-19 04:15:00,269 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:15:00,271 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:15:00,280 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,288 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,288 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:15:00 BoogieIcfgContainer [2021-11-19 04:15:00,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:15:00,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:15:00,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:15:00,306 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:15:00,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:41" (3/4) ... [2021-11-19 04:15:00,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 04:15:00,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-19 04:15:00,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-19 04:15:00,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 04:15:00,333 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 04:15:00,381 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:15:00,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:15:00,382 INFO L158 Benchmark]: Toolchain (without parser) took 22063.46ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 38.4MB in the beginning and 39.3MB in the end (delta: -840.3kB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,382 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:15:00,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.73ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 40.3MB in the end (delta: -2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.42ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 38.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,388 INFO L158 Benchmark]: Boogie Preprocessor took 49.80ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 36.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,389 INFO L158 Benchmark]: RCFGBuilder took 2849.22ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 36.0MB in the beginning and 54.1MB in the end (delta: -18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,390 INFO L158 Benchmark]: TraceAbstraction took 18628.07ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 42.0MB in the end (delta: 11.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,391 INFO L158 Benchmark]: Witness Printer took 75.20ms. Allocated memory is still 75.5MB. Free memory was 42.0MB in the beginning and 39.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:15:00,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory is still 40.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.73ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 40.3MB in the end (delta: -2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.42ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 38.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.80ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 36.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2849.22ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 36.0MB in the beginning and 54.1MB in the end (delta: -18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18628.07ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 42.0MB in the end (delta: 11.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 75.20ms. Allocated memory is still 75.5MB. Free memory was 42.0MB in the beginning and 39.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] * 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 - PositiveResult [Line: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 600 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 600 mSDsluCounter, 2216 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 250 IncrementalHoareTripleChecker+Unchecked, 1777 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 439 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 59 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 164 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 147 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 330 ConstructedInterpolants, 67 QuantifiedInterpolants, 2392 SizeOfPredicates, 61 NumberOfNonLiveVariables, 637 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 18 InterpolantComputations, 17 PerfectInterpolantSequences, 1/2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant [2021-11-19 04:15:00,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_fmod_float_~hy~0#1_47 : bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_62 : bv32 :: (!~bvslt32(~bvxor32(v_ULTIMATE.start_fmod_float_~hx~0#1_62, ~bvand32(2147483648bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_62)), ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_47)) && i == ~bvshl32(~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_47), 8bv32)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_62[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_62[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_62[22:0])) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (~fp.lt~FLOAT(y, ~Pluszero~LONGDOUBLE()) || ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE()))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant [2021-11-19 04:15:00,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_47,QUANTIFIED] [2021-11-19 04:15:00,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] [2021-11-19 04:15:00,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_62,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start_fmod_float_~hy~0#1_47 : bv32 :: ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_47) == hy)) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_62 : bv32 :: !~bvslt32(~bvxor32(v_ULTIMATE.start_fmod_float_~hx~0#1_62, ~bvand32(2147483648bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_62)), hy) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_62[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_62[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_62[22:0]))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && \result == 1bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x RESULT: Ultimate proved your program to be correct! [2021-11-19 04:15:00,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77695994-6314-4f00-8a00-f345f7038689/bin/uautomizer-ZXIjhQolGL/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 Writing output log to file Ultimate.log Result: TRUE