./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa --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 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:05:44,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:05:44,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:05:44,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:05:44,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:05:44,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:05:44,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:05:44,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:05:44,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:05:44,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:05:44,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:05:44,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:05:44,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:05:44,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:05:44,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:05:44,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:05:44,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:05:44,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:05:44,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:05:44,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:05:44,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:05:44,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:05:44,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:05:44,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:05:44,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:05:44,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:05:44,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:05:44,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:05:44,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:05:44,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:05:44,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:05:44,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:05:44,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:05:44,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:05:44,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:05:44,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:05:44,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:05:44,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:05:44,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:05:44,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:05:44,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:05:44,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 19:05:44,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:05:44,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:05:44,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:05:44,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:05:44,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:05:44,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:05:44,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:05:44,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:05:44,439 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:05:44,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:05:44,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:05:44,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:05:44,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:05:44,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:05:44,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:05:44,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:05:44,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:05:44,440 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:05:44,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:05:44,441 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:05:44,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:05:44,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:05:44,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:05:44,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:05:44,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:05:44,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:05:44,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:05:44,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:05:44,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:05:44,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:05:44,443 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:05:44,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:05:44,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:05:44,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:05:44,443 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_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2021-12-06 19:05:44,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:05:44,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:05:44,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:05:44,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:05:44,651 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:05:44,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-12-06 19:05:44,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/4e10fec59/04032be7483d4e7486d54c202ec74b70/FLAGd1b5d4a07 [2021-12-06 19:05:45,095 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:05:45,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-12-06 19:05:45,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/4e10fec59/04032be7483d4e7486d54c202ec74b70/FLAGd1b5d4a07 [2021-12-06 19:05:45,110 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/4e10fec59/04032be7483d4e7486d54c202ec74b70 [2021-12-06 19:05:45,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:05:45,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:05:45,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:05:45,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:05:45,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:05:45,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4767d45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45, skipping insertion in model container [2021-12-06 19:05:45,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:05:45,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:05:45,263 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_e3374dc0-9bd1-48a6-babd-1573b281ff06/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-12-06 19:05:45,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:05:45,274 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:05:45,296 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_e3374dc0-9bd1-48a6-babd-1573b281ff06/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-12-06 19:05:45,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:05:45,308 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:05:45,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45 WrapperNode [2021-12-06 19:05:45,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:05:45,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:05:45,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:05:45,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:05:45,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,338 INFO L137 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2021-12-06 19:05:45,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:05:45,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:05:45,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:05:45,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:05:45,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:05:45,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:05:45,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:05:45,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:05:45,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (1/1) ... [2021-12-06 19:05:45,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:05:45,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:45,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:05:45,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:05:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:05:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:05:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:05:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 19:05:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:05:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 19:05:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:05:45,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:05:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:05:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:05:45,495 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:05:45,496 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:05:45,637 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:05:45,642 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:05:45,642 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 19:05:45,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:45 BoogieIcfgContainer [2021-12-06 19:05:45,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:05:45,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:05:45,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:05:45,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:05:45,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:05:45" (1/3) ... [2021-12-06 19:05:45,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450ac2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:05:45, skipping insertion in model container [2021-12-06 19:05:45,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:45" (2/3) ... [2021-12-06 19:05:45,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450ac2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:05:45, skipping insertion in model container [2021-12-06 19:05:45,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:45" (3/3) ... [2021-12-06 19:05:45,652 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2021-12-06 19:05:45,657 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:05:45,657 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:05:45,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:05:45,697 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 [2021-12-06 19:05:45,698 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:05:45,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2021-12-06 19:05:45,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 19:05:45,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:45,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:45,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:45,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-12-06 19:05:45,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:45,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964137520] [2021-12-06 19:05:45,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:45,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:45,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:45,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:05:45,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964137520] [2021-12-06 19:05:45,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964137520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:45,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:45,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:05:45,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255208787] [2021-12-06 19:05:45,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:45,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:05:45,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:05:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:05:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:05:45,865 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2021-12-06 19:05:45,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:45,878 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-12-06 19:05:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:05:45,880 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 [2021-12-06 19:05:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:45,887 INFO L225 Difference]: With dead ends: 66 [2021-12-06 19:05:45,887 INFO L226 Difference]: Without dead ends: 31 [2021-12-06 19:05:45,889 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 [2021-12-06 19:05:45,892 INFO L933 BasicCegarLoop]: 48 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, 48 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 [2021-12-06 19:05:45,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:05:45,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-06 19:05:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-06 19:05:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2021-12-06 19:05:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-12-06 19:05:45,917 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-12-06 19:05:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:45,917 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-12-06 19:05:45,918 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) [2021-12-06 19:05:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-12-06 19:05:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 19:05:45,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:45,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:45,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:05:45,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:45,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-12-06 19:05:45,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:05:45,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488970396] [2021-12-06 19:05:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:45,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:05:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:05:45,956 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:05:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:05:45,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:05:45,993 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:05:45,995 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:05:45,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:05:45,999 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 19:05:46,001 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:05:46,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:05:46 BoogieIcfgContainer [2021-12-06 19:05:46,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:05:46,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:05:46,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:05:46,021 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:05:46,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:45" (3/4) ... [2021-12-06 19:05:46,023 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:05:46,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:05:46,024 INFO L158 Benchmark]: Toolchain (without parser) took 910.52ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 61.6MB in the end (delta: 28.7MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2021-12-06 19:05:46,024 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 107.0MB in the beginning and 106.9MB in the end (delta: 140.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:05:46,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.91ms. Allocated memory is still 127.9MB. Free memory was 90.2MB in the beginning and 103.4MB in the end (delta: -13.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 19:05:46,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.91ms. Allocated memory is still 127.9MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:05:46,026 INFO L158 Benchmark]: Boogie Preprocessor took 27.48ms. Allocated memory is still 127.9MB. Free memory was 101.4MB in the beginning and 100.5MB in the end (delta: 936.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:05:46,026 INFO L158 Benchmark]: RCFGBuilder took 277.14ms. Allocated memory is still 127.9MB. Free memory was 99.9MB in the beginning and 87.9MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 19:05:46,026 INFO L158 Benchmark]: TraceAbstraction took 374.73ms. Allocated memory is still 127.9MB. Free memory was 87.3MB in the beginning and 62.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-06 19:05:46,027 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 127.9MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:05:46,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 107.0MB in the beginning and 106.9MB in the end (delta: 140.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.91ms. Allocated memory is still 127.9MB. Free memory was 90.2MB in the beginning and 103.4MB in the end (delta: -13.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.91ms. Allocated memory is still 127.9MB. Free memory was 103.4MB in the beginning and 101.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.48ms. Allocated memory is still 127.9MB. Free memory was 101.4MB in the beginning and 100.5MB in the end (delta: 936.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.14ms. Allocated memory is still 127.9MB. Free memory was 99.9MB in the beginning and 87.9MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 374.73ms. Allocated memory is still 127.9MB. Free memory was 87.3MB in the beginning and 62.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 127.9MB. Free memory is still 61.6MB. 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: 97]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someBinaryArithmeticDOUBLEoperation at line 92, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double x = 0.0 / 0.0; [L93] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L31] COND TRUE j0 < 20 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L93] RET, EXPR ceil_double(x) [L93] double res = ceil_double(x); [L96] CALL, EXPR isnan_double(res) [L17] return x != x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] [L96] RET, EXPR isnan_double(res) [L96] COND TRUE !isnan_double(res) [L97] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 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, 48 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=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 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 [2021-12-06 19:05:46,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/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_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa --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 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:05:47,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:05:47,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:05:47,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:05:47,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:05:47,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:05:47,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:05:47,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:05:47,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:05:47,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:05:47,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:05:47,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:05:47,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:05:47,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:05:47,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:05:47,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:05:47,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:05:47,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:05:47,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:05:47,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:05:47,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:05:47,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:05:47,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:05:47,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:05:47,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:05:47,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:05:47,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:05:47,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:05:47,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:05:47,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:05:47,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:05:47,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:05:47,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:05:47,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:05:47,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:05:47,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:05:47,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:05:47,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:05:47,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:05:47,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:05:47,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:05:47,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 19:05:47,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:05:47,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:05:47,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:05:47,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:05:47,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:05:47,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:05:47,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:05:47,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:05:47,743 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:05:47,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:05:47,744 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:05:47,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:05:47,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:05:47,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:05:47,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:05:47,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:05:47,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:05:47,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:05:47,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:05:47,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:05:47,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:05:47,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:05:47,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:05:47,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 19:05:47,748 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_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2021-12-06 19:05:47,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:05:47,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:05:47,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:05:47,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:05:47,982 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:05:47,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-12-06 19:05:48,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/3ea21d177/53410d8ccdfd4c96997fc18700a07524/FLAG06f54e167 [2021-12-06 19:05:48,414 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:05:48,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-12-06 19:05:48,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/3ea21d177/53410d8ccdfd4c96997fc18700a07524/FLAG06f54e167 [2021-12-06 19:05:48,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/data/3ea21d177/53410d8ccdfd4c96997fc18700a07524 [2021-12-06 19:05:48,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:05:48,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:05:48,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:05:48,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:05:48,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:05:48,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a84db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48, skipping insertion in model container [2021-12-06 19:05:48,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:05:48,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:05:48,593 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_e3374dc0-9bd1-48a6-babd-1573b281ff06/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-12-06 19:05:48,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:05:48,607 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:05:48,633 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_e3374dc0-9bd1-48a6-babd-1573b281ff06/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-12-06 19:05:48,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:05:48,649 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:05:48,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48 WrapperNode [2021-12-06 19:05:48,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:05:48,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:05:48,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:05:48,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:05:48,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,680 INFO L137 Inliner]: procedures = 19, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2021-12-06 19:05:48,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:05:48,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:05:48,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:05:48,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:05:48,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:05:48,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:05:48,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:05:48,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:05:48,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (1/1) ... [2021-12-06 19:05:48,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:05:48,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:05:48,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:05:48,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:05:48,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:05:48,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 19:05:48,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:05:48,821 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:05:48,822 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:05:49,932 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:05:49,937 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:05:49,937 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 19:05:49,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:49 BoogieIcfgContainer [2021-12-06 19:05:49,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:05:49,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:05:49,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:05:49,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:05:49,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:05:48" (1/3) ... [2021-12-06 19:05:49,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1f5ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:05:49, skipping insertion in model container [2021-12-06 19:05:49,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:05:48" (2/3) ... [2021-12-06 19:05:49,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1f5ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:05:49, skipping insertion in model container [2021-12-06 19:05:49,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:49" (3/3) ... [2021-12-06 19:05:49,947 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2021-12-06 19:05:49,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:05:49,951 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:05:49,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:05:49,988 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 [2021-12-06 19:05:49,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:05:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2021-12-06 19:05:50,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 19:05:50,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:50,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:50,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-12-06 19:05:50,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:05:50,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882946571] [2021-12-06 19:05:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:50,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:05:50,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:05:50,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:05:50,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 19:05:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:50,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 19:05:50,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:50,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:50,119 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:05:50,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882946571] [2021-12-06 19:05:50,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882946571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:50,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:50,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:05:50,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924789531] [2021-12-06 19:05:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:50,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:05:50,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:05:50,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:05:50,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:05:50,146 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 states have internal predecessors, (53), 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) [2021-12-06 19:05:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:50,158 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-12-06 19:05:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:05:50,160 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 [2021-12-06 19:05:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:50,166 INFO L225 Difference]: With dead ends: 66 [2021-12-06 19:05:50,166 INFO L226 Difference]: Without dead ends: 31 [2021-12-06 19:05:50,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:05:50,171 INFO L933 BasicCegarLoop]: 48 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, 48 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 [2021-12-06 19:05:50,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:05:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-06 19:05:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-06 19:05:50,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2021-12-06 19:05:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-12-06 19:05:50,195 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-12-06 19:05:50,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:50,195 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-12-06 19:05:50,195 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) [2021-12-06 19:05:50,195 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-12-06 19:05:50,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 19:05:50,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:50,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:50,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:05:50,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:05:50,397 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:50,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:50,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-12-06 19:05:50,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:05:50,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255152224] [2021-12-06 19:05:50,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:50,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:05:50,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:05:50,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:05:50,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 19:05:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:50,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:05:50,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:50,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:50,653 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:05:50,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255152224] [2021-12-06 19:05:50,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255152224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:50,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:50,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:05:50,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019215841] [2021-12-06 19:05:50,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:50,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:05:50,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:05:50,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:05:50,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:05:50,656 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 19:05:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:50,698 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2021-12-06 19:05:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:05:50,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-12-06 19:05:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:50,699 INFO L225 Difference]: With dead ends: 36 [2021-12-06 19:05:50,699 INFO L226 Difference]: Without dead ends: 31 [2021-12-06 19:05:50,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:05:50,700 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:50,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 145 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-06 19:05:50,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-06 19:05:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-06 19:05:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 30 states have internal predecessors, (44), 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) [2021-12-06 19:05:50,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2021-12-06 19:05:50,705 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 12 [2021-12-06 19:05:50,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:50,705 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2021-12-06 19:05:50,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 19:05:50,705 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2021-12-06 19:05:50,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 19:05:50,706 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:50,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:50,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 19:05:50,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:05:50,908 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:50,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:50,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1803097798, now seen corresponding path program 1 times [2021-12-06 19:05:50,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:05:50,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171841231] [2021-12-06 19:05:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:50,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:05:50,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:05:50,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:05:50,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 19:05:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:51,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:05:51,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:51,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:51,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:05:51,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171841231] [2021-12-06 19:05:51,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171841231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:51,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:51,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:05:51,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030356677] [2021-12-06 19:05:51,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:51,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:05:51,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:05:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:05:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:05:51,202 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 19:05:51,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:51,245 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2021-12-06 19:05:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:05:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-12-06 19:05:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:51,246 INFO L225 Difference]: With dead ends: 36 [2021-12-06 19:05:51,246 INFO L226 Difference]: Without dead ends: 31 [2021-12-06 19:05:51,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:05:51,247 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:51,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 145 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2021-12-06 19:05:51,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-06 19:05:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-06 19:05:51,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 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) [2021-12-06 19:05:51,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-12-06 19:05:51,251 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 12 [2021-12-06 19:05:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:51,251 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-12-06 19:05:51,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 19:05:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-12-06 19:05:51,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 19:05:51,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:51,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:51,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 19:05:51,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:05:51,459 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:51,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:51,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2009966502, now seen corresponding path program 1 times [2021-12-06 19:05:51,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:05:51,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776561017] [2021-12-06 19:05:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:51,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:05:51,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:05:51,466 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:05:51,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 19:05:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:51,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:05:51,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:51,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:51,719 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:05:51,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776561017] [2021-12-06 19:05:51,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776561017] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:51,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:51,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:05:51,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65177668] [2021-12-06 19:05:51,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:51,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:05:51,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:05:51,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:05:51,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:05:51,720 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 19:05:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:52,228 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2021-12-06 19:05:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:05:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2021-12-06 19:05:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:52,229 INFO L225 Difference]: With dead ends: 42 [2021-12-06 19:05:52,229 INFO L226 Difference]: Without dead ends: 21 [2021-12-06 19:05:52,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:05:52,230 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:52,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 68 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 19:05:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-06 19:05:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-06 19:05:52,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2021-12-06 19:05:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-12-06 19:05:52,233 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-12-06 19:05:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:52,233 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-12-06 19:05:52,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 19:05:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-12-06 19:05:52,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 19:05:52,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:52,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:52,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 19:05:52,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:05:52,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:52,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2021-12-06 19:05:52,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:05:52,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018197841] [2021-12-06 19:05:52,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:52,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:05:52,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:05:52,443 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:05:52,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 19:05:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:52,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:05:52,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:52,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:52,781 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:05:52,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018197841] [2021-12-06 19:05:52,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018197841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:52,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:52,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:05:52,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455073549] [2021-12-06 19:05:52,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:52,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:05:52,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:05:52,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:05:52,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:52,783 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:05:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:52,784 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-12-06 19:05:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:05:52,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-06 19:05:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:52,785 INFO L225 Difference]: With dead ends: 29 [2021-12-06 19:05:52,785 INFO L226 Difference]: Without dead ends: 17 [2021-12-06 19:05:52,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:52,786 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:52,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2021-12-06 19:05:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-06 19:05:52,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-06 19:05:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2021-12-06 19:05:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2021-12-06 19:05:52,789 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 15 [2021-12-06 19:05:52,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:52,789 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2021-12-06 19:05:52,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:05:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2021-12-06 19:05:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 19:05:52,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:05:52,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:05:52,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 19:05:52,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:05:52,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:05:52,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:05:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash 101523525, now seen corresponding path program 1 times [2021-12-06 19:05:52,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:05:52,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592751045] [2021-12-06 19:05:52,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:05:52,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:05:52,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:05:52,998 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:05:53,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 19:05:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:05:53,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:05:53,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:05:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:05:53,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:05:53,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:05:53,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592751045] [2021-12-06 19:05:53,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592751045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:05:53,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:05:53,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:05:53,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461054311] [2021-12-06 19:05:53,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:05:53,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:05:53,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:05:53,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:05:53,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:53,386 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-12-06 19:05:53,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:05:53,387 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-12-06 19:05:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:05:53,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-12-06 19:05:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:05:53,387 INFO L225 Difference]: With dead ends: 17 [2021-12-06 19:05:53,387 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 19:05:53,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:05:53,388 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:05:53,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-12-06 19:05:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 19:05:53,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 19:05:53,389 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) [2021-12-06 19:05:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 19:05:53,390 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-12-06 19:05:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:05:53,390 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:05:53,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-12-06 19:05:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:05:53,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 19:05:53,392 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:05:53,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 19:05:53,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:05:53,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 19:05:53,719 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 99) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-12-06 19:05:53,720 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_double_~x#1| (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L854 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_ceil_double_#res#1|)) [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-12-06 19:05:53,721 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 19:05:53,722 INFO L854 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) [2021-12-06 19:05:53,722 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-12-06 19:05:53,722 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-12-06 19:05:53,722 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-12-06 19:05:53,722 INFO L858 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-12-06 19:05:53,722 INFO L861 garLoopResultBuilder]: At program point L101(lines 85 102) the Hoare annotation is: true [2021-12-06 19:05:53,722 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-12-06 19:05:53,722 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-12-06 19:05:53,724 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-06 19:05:53,725 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:05:53,733 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,734 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 19:05:53,734 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,734 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 19:05:53,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:05:53 BoogieIcfgContainer [2021-12-06 19:05:53,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:05:53,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:05:53,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:05:53,736 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:05:53,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:05:49" (3/4) ... [2021-12-06 19:05:53,739 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 19:05:53,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-12-06 19:05:53,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-06 19:05:53,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 19:05:53,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 19:05:53,762 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-06 19:05:53,763 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) [2021-12-06 19:05:53,763 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2021-12-06 19:05:53,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:05:53,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:05:53,774 INFO L158 Benchmark]: Toolchain (without parser) took 5337.85ms. Allocated memory was 54.5MB in the beginning and 92.3MB in the end (delta: 37.7MB). Free memory was 30.5MB in the beginning and 50.9MB in the end (delta: -20.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,774 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:05:53,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.13ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 30.4MB in the beginning and 55.6MB in the end (delta: -25.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.77ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 53.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,775 INFO L158 Benchmark]: Boogie Preprocessor took 32.12ms. Allocated memory is still 75.5MB. Free memory was 53.7MB in the beginning and 52.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,775 INFO L158 Benchmark]: RCFGBuilder took 1224.64ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 39.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,775 INFO L158 Benchmark]: TraceAbstraction took 3796.59ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 54.8MB in the end (delta: -15.7MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,775 INFO L158 Benchmark]: Witness Printer took 37.08ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 50.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:05:53,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.13ms. Allocated memory was 54.5MB in the beginning and 75.5MB in the end (delta: 21.0MB). Free memory was 30.4MB in the beginning and 55.6MB in the end (delta: -25.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.77ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 53.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.12ms. Allocated memory is still 75.5MB. Free memory was 53.7MB in the beginning and 52.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1224.64ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 39.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3796.59ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 54.8MB in the end (delta: -15.7MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 37.08ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 50.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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: 97]: 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 457 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 50 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 144 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 23 QuantifiedInterpolants, 384 SizeOfPredicates, 41 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2021-12-06 19:05:53,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,783 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-06 19:05:53,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,783 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 21]: Loop Invariant [2021-12-06 19:05:53,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-06 19:05:53,783 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) RESULT: Ultimate proved your program to be correct! [2021-12-06 19:05:53,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3374dc0-9bd1-48a6-babd-1573b281ff06/bin/uautomizer-DrprNOufMa/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