./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:12:06,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:12:06,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:12:06,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:12:06,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:12:06,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:12:06,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:12:06,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:12:06,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:12:06,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:12:06,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:12:06,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:12:06,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:12:06,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:12:06,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:12:06,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:12:06,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:12:06,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:12:06,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:12:06,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:12:06,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:12:06,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:12:06,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:12:06,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:12:06,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:12:06,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:12:06,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:12:06,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:12:06,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:12:06,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:12:06,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:12:06,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:12:06,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:12:06,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:12:06,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:12:06,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:12:06,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:12:06,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:12:06,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:12:06,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:12:06,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:12:06,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:12:06,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:12:06,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:12:06,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:12:06,472 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:12:06,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:12:06,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:12:06,473 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:12:06,473 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:12:06,479 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:12:06,479 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:12:06,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:12:06,481 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:12:06,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:12:06,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:12:06,481 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:12:06,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:12:06,482 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:12:06,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:12:06,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:12:06,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:12:06,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:12:06,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:12:06,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:12:06,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:12:06,484 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:12:06,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:12:06,484 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:12:06,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:12:06,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:12:06,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:12:06,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:12:06,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:12:06,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:12:06,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:12:06,488 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:12:06,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:12:06,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:12:06,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:12:06,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:12:06,489 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2021-10-24 11:12:06,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:12:06,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:12:06,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:12:06,808 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:12:06,809 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:12:06,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-24 11:12:06,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/817ac93eb/a86219974a314278a0fe8be10f3b52e0/FLAGdef5c87ff [2021-10-24 11:12:07,357 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:12:07,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-24 11:12:07,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/817ac93eb/a86219974a314278a0fe8be10f3b52e0/FLAGdef5c87ff [2021-10-24 11:12:07,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/817ac93eb/a86219974a314278a0fe8be10f3b52e0 [2021-10-24 11:12:07,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:12:07,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:12:07,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:12:07,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:12:07,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:12:07,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:07" (1/1) ... [2021-10-24 11:12:07,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550bea5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:07, skipping insertion in model container [2021-10-24 11:12:07,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:07" (1/1) ... [2021-10-24 11:12:07,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:12:07,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:12:07,995 WARN L228 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_121f6c82-e9ae-49bb-957c-cb1def19a742/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-24 11:12:07,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:12:08,014 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:12:08,078 WARN L228 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_121f6c82-e9ae-49bb-957c-cb1def19a742/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-24 11:12:08,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:12:08,099 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:12:08,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08 WrapperNode [2021-10-24 11:12:08,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:12:08,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:12:08,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:12:08,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:12:08,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:12:08,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:12:08,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:12:08,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:12:08,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:12:08,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:12:08,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:12:08,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:12:08,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (1/1) ... [2021-10-24 11:12:08,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:12:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:12:08,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:12:08,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:12:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 11:12:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:12:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 11:12:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-24 11:12:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-24 11:12:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:12:08,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:12:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 11:12:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-24 11:12:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:12:09,086 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:12:09,087 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 11:12:09,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:09 BoogieIcfgContainer [2021-10-24 11:12:09,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:12:09,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:12:09,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:12:09,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:12:09,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:12:07" (1/3) ... [2021-10-24 11:12:09,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c1b464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:09, skipping insertion in model container [2021-10-24 11:12:09,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:08" (2/3) ... [2021-10-24 11:12:09,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c1b464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:09, skipping insertion in model container [2021-10-24 11:12:09,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:09" (3/3) ... [2021-10-24 11:12:09,103 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2021-10-24 11:12:09,110 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:12:09,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:12:09,154 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:12:09,159 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=FINITE_AUTOMATA, 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 [2021-10-24 11:12:09,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:12:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 38 states have internal predecessors, (66), 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) [2021-10-24 11:12:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 11:12:09,175 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:12:09,175 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:12:09,176 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:12:09,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:12:09,180 INFO L82 PathProgramCache]: Analyzing trace with hash -159335407, now seen corresponding path program 1 times [2021-10-24 11:12:09,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:12:09,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182498614] [2021-10-24 11:12:09,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:12:09,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:12:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:12:09,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:12:09,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:12:09,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182498614] [2021-10-24 11:12:09,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182498614] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:12:09,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:12:09,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 11:12:09,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766617978] [2021-10-24 11:12:09,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:12:09,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:12:09,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:12:09,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:12:09,397 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 38 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-10-24 11:12:09,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:12:09,425 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2021-10-24 11:12:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:12:09,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-10-24 11:12:09,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:12:09,436 INFO L225 Difference]: With dead ends: 77 [2021-10-24 11:12:09,437 INFO L226 Difference]: Without dead ends: 37 [2021-10-24 11:12:09,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:12:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-24 11:12:09,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-24 11:12:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5) internal successors, (54), 36 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:12:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2021-10-24 11:12:09,478 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2021-10-24 11:12:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:12:09,478 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2021-10-24 11:12:09,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-10-24 11:12:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2021-10-24 11:12:09,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 11:12:09,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:12:09,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:12:09,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 11:12:09,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:12:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:12:09,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1510972428, now seen corresponding path program 1 times [2021-10-24 11:12:09,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:12:09,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782144667] [2021-10-24 11:12:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:12:09,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:12:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:12:09,597 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 11:12:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:12:09,680 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 11:12:09,681 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 11:12:09,682 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:12:09,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 11:12:09,689 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:12:09,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:12:09 BoogieIcfgContainer [2021-10-24 11:12:09,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:12:09,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:12:09,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:12:09,715 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:12:09,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:09" (3/4) ... [2021-10-24 11:12:09,718 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 11:12:09,718 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:12:09,720 INFO L168 Benchmark]: Toolchain (without parser) took 1979.04 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 47.7 MB in the beginning and 51.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:09,721 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 64.5 MB in the beginning and 64.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:12:09,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.20 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 47.5 MB in the beginning and 84.4 MB in the end (delta: -36.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:09,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.51 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 82.0 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:12:09,723 INFO L168 Benchmark]: Boogie Preprocessor took 37.61 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 80.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:09,724 INFO L168 Benchmark]: RCFGBuilder took 853.45 ms. Allocated memory is still 111.1 MB. Free memory was 80.0 MB in the beginning and 78.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:09,725 INFO L168 Benchmark]: TraceAbstraction took 622.97 ms. Allocated memory is still 111.1 MB. Free memory was 78.9 MB in the beginning and 51.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:12:09,725 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 111.1 MB. Free memory was 51.6 MB in the beginning and 51.1 MB in the end (delta: 503.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:12:09,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 64.5 MB in the beginning and 64.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.20 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 47.5 MB in the beginning and 84.4 MB in the end (delta: -36.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.51 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 82.0 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.61 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 80.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 853.45 ms. Allocated memory is still 111.1 MB. Free memory was 80.0 MB in the beginning and 78.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 622.97 ms. Allocated memory is still 111.1 MB. Free memory was 78.9 MB in the beginning and 51.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.09 ms. Allocated memory is still 111.1 MB. Free memory was 51.6 MB in the beginning and 51.1 MB in the end (delta: 503.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 536.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.6ms, AutomataDifference: 62.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.0ms SsaConstructionTime, 133.4ms SatisfiabilityAnalysisTime, 63.2ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2021-10-24 11:12:09,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:12:12,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:12:12,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:12:12,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:12:12,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:12:12,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:12:12,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:12:12,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:12:12,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:12:12,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:12:12,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:12:12,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:12:12,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:12:12,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:12:12,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:12:12,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:12:12,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:12:12,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:12:12,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:12:12,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:12:12,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:12:12,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:12:12,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:12:12,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:12:12,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:12:12,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:12:12,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:12:12,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:12:12,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:12:12,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:12:12,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:12:12,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:12:12,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:12:12,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:12:12,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:12:12,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:12:12,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:12:12,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:12:12,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:12:12,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:12:12,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:12:12,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:12:12,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:12:12,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:12:12,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:12:12,211 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:12:12,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:12:12,211 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:12:12,211 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:12:12,212 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:12:12,212 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:12:12,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:12:12,213 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:12:12,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:12:12,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:12:12,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:12:12,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:12:12,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:12:12,214 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:12:12,214 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:12:12,214 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:12:12,214 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:12:12,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:12:12,215 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:12:12,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:12:12,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:12:12,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:12:12,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:12:12,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:12:12,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:12:12,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:12:12,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:12:12,219 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:12:12,219 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:12:12,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:12:12,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:12:12,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:12:12,220 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_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2021-10-24 11:12:12,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:12:12,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:12:12,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:12:12,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:12:12,627 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:12:12,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-24 11:12:12,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/8eba16e6a/c72960558aa543bf8082bd8dc483387b/FLAG48ddbe032 [2021-10-24 11:12:13,294 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:12:13,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-24 11:12:13,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/8eba16e6a/c72960558aa543bf8082bd8dc483387b/FLAG48ddbe032 [2021-10-24 11:12:13,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/data/8eba16e6a/c72960558aa543bf8082bd8dc483387b [2021-10-24 11:12:13,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:12:13,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:12:13,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:12:13,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:12:13,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:12:13,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:13" (1/1) ... [2021-10-24 11:12:13,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6529b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:13, skipping insertion in model container [2021-10-24 11:12:13,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:13" (1/1) ... [2021-10-24 11:12:13,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:12:13,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:12:13,906 WARN L228 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_121f6c82-e9ae-49bb-957c-cb1def19a742/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-24 11:12:13,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:12:13,920 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:12:14,007 WARN L228 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_121f6c82-e9ae-49bb-957c-cb1def19a742/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-24 11:12:14,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:12:14,039 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:12:14,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14 WrapperNode [2021-10-24 11:12:14,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:12:14,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:12:14,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:12:14,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:12:14,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:12:14,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:12:14,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:12:14,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:12:14,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:12:14,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:12:14,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:12:14,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:12:14,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (1/1) ... [2021-10-24 11:12:14,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:12:14,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:12:14,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:12:14,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:12:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-24 11:12:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-24 11:12:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:12:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:12:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-24 11:12:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 11:12:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:12:14,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:12:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 11:12:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:12:19,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:12:19,136 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 11:12:19,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:19 BoogieIcfgContainer [2021-10-24 11:12:19,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:12:19,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:12:19,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:12:19,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:12:19,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:12:13" (1/3) ... [2021-10-24 11:12:19,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef73a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:19, skipping insertion in model container [2021-10-24 11:12:19,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:14" (2/3) ... [2021-10-24 11:12:19,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef73a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:19, skipping insertion in model container [2021-10-24 11:12:19,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:19" (3/3) ... [2021-10-24 11:12:19,154 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2021-10-24 11:12:19,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:12:19,168 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:12:19,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:12:19,237 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=FINITE_AUTOMATA, 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 [2021-10-24 11:12:19,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:12:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2021-10-24 11:12:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 11:12:19,267 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:12:19,267 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:12:19,268 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:12:19,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:12:19,273 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-24 11:12:19,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:12:19,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879204668] [2021-10-24 11:12:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:12:19,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:12:19,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:12:19,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:12:19,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:12:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:12:20,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:12:20,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:12:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:12:20,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:12:20,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:12:20,519 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:12:20,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879204668] [2021-10-24 11:12:20,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879204668] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:12:20,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:12:20,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:12:20,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099216374] [2021-10-24 11:12:20,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:12:20,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:12:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:12:20,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:12:20,542 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:12:20,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:12:20,564 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-24 11:12:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:12:20,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 11:12:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:12:20,574 INFO L225 Difference]: With dead ends: 108 [2021-10-24 11:12:20,574 INFO L226 Difference]: Without dead ends: 52 [2021-10-24 11:12:20,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:12:20,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-24 11:12:20,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-24 11:12:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2021-10-24 11:12:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-24 11:12:20,612 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-24 11:12:20,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:12:20,612 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-24 11:12:20,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:12:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-24 11:12:20,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 11:12:20,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:12:20,614 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:12:20,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:12:20,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:12:20,829 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:12:20,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:12:20,830 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-24 11:12:20,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:12:20,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767884438] [2021-10-24 11:12:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:12:20,831 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:12:20,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:12:20,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:12:20,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:12:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:12:21,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-24 11:12:21,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:12:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:12:35,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:12:48,007 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from false [2021-10-24 11:12:50,355 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-10-24 11:13:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:16,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:16,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767884438] [2021-10-24 11:13:16,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767884438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:16,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:16,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-24 11:13:16,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174426266] [2021-10-24 11:13:16,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-24 11:13:16,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:16,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-24 11:13:16,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=68, Unknown=2, NotChecked=16, Total=110 [2021-10-24 11:13:16,025 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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) [2021-10-24 11:13:19,957 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~x (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (_ +zero 11 53))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-24 11:13:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:43,098 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2021-10-24 11:13:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 11:13:43,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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 [2021-10-24 11:13:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:43,135 INFO L225 Difference]: With dead ends: 57 [2021-10-24 11:13:43,135 INFO L226 Difference]: Without dead ends: 52 [2021-10-24 11:13:43,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 38432.7ms TimeCoverageRelationStatistics Valid=41, Invalid=96, Unknown=3, NotChecked=42, Total=182 [2021-10-24 11:13:43,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-24 11:13:43,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-24 11:13:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 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) [2021-10-24 11:13:43,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-10-24 11:13:43,144 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-10-24 11:13:43,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:43,145 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-10-24 11:13:43,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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) [2021-10-24 11:13:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-10-24 11:13:43,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 11:13:43,146 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:43,146 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:13:43,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:43,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:43,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:13:43,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:43,348 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-10-24 11:13:43,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:43,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984872075] [2021-10-24 11:13:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:13:43,349 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:43,350 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:43,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:13:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:13:43,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 11:13:43,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:44,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:44,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:13:45,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:45,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984872075] [2021-10-24 11:13:45,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984872075] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:13:45,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:13:45,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-10-24 11:13:45,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454967291] [2021-10-24 11:13:45,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 11:13:45,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:13:45,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 11:13:45,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-24 11:13:45,275 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:45,488 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-10-24 11:13:45,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:13:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-24 11:13:45,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:45,490 INFO L225 Difference]: With dead ends: 52 [2021-10-24 11:13:45,490 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 11:13:45,491 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 964.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:13:45,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 11:13:45,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 11:13:45,491 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) [2021-10-24 11:13:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 11:13:45,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-24 11:13:45,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:45,492 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 11:13:45,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:45,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 11:13:45,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 11:13:45,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:13:45,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:45,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:13:45,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 11:13:45,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:45,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 11:13:51,665 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2021-10-24 11:13:51,667 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-10-24 11:13:51,668 INFO L853 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-10-24 11:13:51,668 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 11:13:51,668 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-10-24 11:13:51,668 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-10-24 11:13:51,668 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-10-24 11:13:51,668 INFO L857 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-10-24 11:13:51,668 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-24 11:13:51,669 INFO L857 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,669 INFO L857 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-10-24 11:13:51,669 INFO L853 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-10-24 11:13:51,669 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-10-24 11:13:51,669 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-10-24 11:13:51,670 INFO L857 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-10-24 11:13:51,670 INFO L857 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,670 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,670 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-10-24 11:13:51,670 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-10-24 11:13:51,670 INFO L857 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-10-24 11:13:51,671 INFO L857 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-10-24 11:13:51,671 INFO L853 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-10-24 11:13:51,671 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 11:13:51,671 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-10-24 11:13:51,671 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-24 11:13:51,672 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-10-24 11:13:51,672 INFO L857 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-10-24 11:13:51,672 INFO L853 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-10-24 11:13:51,672 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 11:13:51,672 INFO L857 garLoopResultBuilder]: For program point L177(lines 177 180) no Hoare annotation was computed. [2021-10-24 11:13:51,672 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-10-24 11:13:51,673 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-10-24 11:13:51,673 INFO L857 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-10-24 11:13:51,673 INFO L853 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= ULTIMATE.start_fmod_double_~x (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-24 11:13:51,673 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-24 11:13:51,673 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-10-24 11:13:51,674 INFO L853 garLoopResultBuilder]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2021-10-24 11:13:51,674 INFO L853 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-10-24 11:13:51,674 INFO L857 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,674 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-10-24 11:13:51,674 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-10-24 11:13:51,674 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-10-24 11:13:51,675 INFO L857 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,675 INFO L857 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,675 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 11:13:51,675 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 178) no Hoare annotation was computed. [2021-10-24 11:13:51,675 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-24 11:13:51,675 INFO L857 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,676 INFO L860 garLoopResultBuilder]: At program point L182(lines 165 183) the Hoare annotation is: true [2021-10-24 11:13:51,676 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-10-24 11:13:51,676 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-24 11:13:51,676 INFO L853 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|))) [2021-10-24 11:13:51,676 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-10-24 11:13:51,676 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-10-24 11:13:51,677 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-10-24 11:13:51,677 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-24 11:13:51,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:13:51,696 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:13:51,698 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:13:51,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:13:51 BoogieIcfgContainer [2021-10-24 11:13:51,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:13:51,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:13:51,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:13:51,700 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:13:51,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:19" (3/4) ... [2021-10-24 11:13:51,704 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 11:13:51,716 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-24 11:13:51,716 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-24 11:13:51,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:13:51,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 11:13:51,754 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:13:51,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:13:51,756 INFO L168 Benchmark]: Toolchain (without parser) took 98128.85 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 36.2 MB in the beginning and 44.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,756 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:13:51,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.58 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 37.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.17 ms. Allocated memory is still 58.7 MB. Free memory was 37.7 MB in the beginning and 35.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,758 INFO L168 Benchmark]: Boogie Preprocessor took 83.82 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 33.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,759 INFO L168 Benchmark]: RCFGBuilder took 4929.49 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 33.4 MB in the beginning and 50.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,759 INFO L168 Benchmark]: TraceAbstraction took 92555.98 ms. Allocated memory is still 79.7 MB. Free memory was 49.8 MB in the beginning and 47.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,760 INFO L168 Benchmark]: Witness Printer took 55.29 ms. Allocated memory is still 79.7 MB. Free memory was 47.3 MB in the beginning and 44.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:13:51,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 399.58 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 37.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.17 ms. Allocated memory is still 58.7 MB. Free memory was 37.7 MB in the beginning and 35.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.82 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 33.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4929.49 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 33.4 MB in the beginning and 50.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92555.98 ms. Allocated memory is still 79.7 MB. Free memory was 49.8 MB in the beginning and 47.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. * Witness Printer took 55.29 ms. Allocated memory is still 79.7 MB. Free memory was 47.3 MB in the beginning and 44.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 178]: 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, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 92454.3ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 11.1ms, AutomataDifference: 27378.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5968.4ms, InitialAbstractionConstructionTime: 19.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 159 SDtfs, 15 SDslu, 398 SDs, 0 SdLazy, 35 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8516.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 39396.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 32 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 38.9ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 5923.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 39.4ms SsaConstructionTime, 1821.9ms SatisfiabilityAnalysisTime, 56376.7ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 450 SizeOfPredicates, 19 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 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: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2021-10-24 11:13:51,774 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 11:13:51,774 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-24 11:13:51,981 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 11:13:52,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121f6c82-e9ae-49bb-957c-cb1def19a742/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...