./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta --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 635f8984c4511856045f1e30e98d2922ab99db02463dd79a1ad0fa0289476012 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:21:32,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:21:32,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:21:32,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:21:32,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:21:32,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:21:32,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:21:32,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:21:32,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:21:32,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:21:32,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:21:32,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:21:32,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:21:32,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:21:32,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:21:32,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:21:32,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:21:32,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:21:32,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:21:32,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:21:32,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:21:32,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:21:32,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:21:32,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:21:32,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:21:32,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:21:32,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:21:32,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:21:32,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:21:32,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:21:32,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:21:32,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:21:32,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:21:32,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:21:32,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:21:32,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:21:32,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:21:32,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:21:32,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:21:32,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:21:32,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:21:32,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:21:32,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:21:32,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:21:32,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:21:32,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:21:32,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:21:32,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:21:32,958 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:21:32,958 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:21:32,958 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:21:32,959 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:21:32,960 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:21:32,960 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:21:32,960 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:21:32,961 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:21:32,961 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:21:32,961 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:21:32,962 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:21:32,962 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:21:32,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:21:32,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:21:32,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:21:32,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:21:32,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:21:32,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:21:32,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:21:32,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:21:32,967 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:21:32,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:21:32,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:21:32,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:21:32,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:21:32,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:21:32,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:32,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:21:32,969 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:21:32,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:21:32,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:21:32,969 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:21:32,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:21:32,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:21:32,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:21:32,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635f8984c4511856045f1e30e98d2922ab99db02463dd79a1ad0fa0289476012 [2022-10-17 17:21:33,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:21:33,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:21:33,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:21:33,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:21:33,325 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:21:33,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2022-10-17 17:21:33,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/f83576187/ccbcd8b7a0c644c3aef61038f4014deb/FLAG1a0db0adc [2022-10-17 17:21:33,862 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:21:33,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2022-10-17 17:21:33,883 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/f83576187/ccbcd8b7a0c644c3aef61038f4014deb/FLAG1a0db0adc [2022-10-17 17:21:34,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/f83576187/ccbcd8b7a0c644c3aef61038f4014deb [2022-10-17 17:21:34,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:21:34,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:21:34,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:34,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:21:34,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:21:34,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672dce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34, skipping insertion in model container [2022-10-17 17:21:34,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:21:34,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:21:34,452 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c[1740,1753] [2022-10-17 17:21:34,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:34,463 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:21:34,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c[1740,1753] [2022-10-17 17:21:34,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:34,508 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:21:34,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34 WrapperNode [2022-10-17 17:21:34,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:34,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:34,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:21:34,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:21:34,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,576 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-10-17 17:21:34,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:34,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:21:34,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:21:34,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:21:34,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:21:34,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:21:34,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:21:34,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:21:34,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (1/1) ... [2022-10-17 17:21:34,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:34,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:34,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:21:34,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:21:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:21:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:21:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:21:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 17:21:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:21:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-17 17:21:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:21:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:21:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:21:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:21:34,843 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:21:34,845 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:21:35,146 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:21:35,292 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:21:35,292 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 17:21:35,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:35 BoogieIcfgContainer [2022-10-17 17:21:35,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:21:35,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:21:35,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:21:35,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:21:35,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:21:34" (1/3) ... [2022-10-17 17:21:35,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff6d25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:35, skipping insertion in model container [2022-10-17 17:21:35,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:34" (2/3) ... [2022-10-17 17:21:35,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff6d25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:35, skipping insertion in model container [2022-10-17 17:21:35,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:35" (3/3) ... [2022-10-17 17:21:35,315 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2022-10-17 17:21:35,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:21:35,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:21:35,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:21:35,423 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f5170ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:21:35,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:21:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:35,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:21:35,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:35,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:35,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:35,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:35,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1053820573, now seen corresponding path program 1 times [2022-10-17 17:21:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:35,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996682706] [2022-10-17 17:21:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:35,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:35,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:21:35,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996682706] [2022-10-17 17:21:35,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996682706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:35,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:35,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:21:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070295227] [2022-10-17 17:21:35,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:35,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 17:21:35,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:21:35,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 17:21:35,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:21:35,766 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 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) [2022-10-17 17:21:35,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:35,825 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2022-10-17 17:21:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 17:21:35,828 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 [2022-10-17 17:21:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:35,837 INFO L225 Difference]: With dead ends: 39 [2022-10-17 17:21:35,837 INFO L226 Difference]: Without dead ends: 18 [2022-10-17 17:21:35,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:21:35,844 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:35,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:21:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-17 17:21:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-10-17 17:21:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 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) [2022-10-17 17:21:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-10-17 17:21:35,881 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2022-10-17 17:21:35,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:35,881 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-10-17 17:21:35,882 INFO L496 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) [2022-10-17 17:21:35,882 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-10-17 17:21:35,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:21:35,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:35,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:35,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:21:35,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:35,884 INFO L85 PathProgramCache]: Analyzing trace with hash 121214260, now seen corresponding path program 1 times [2022-10-17 17:21:35,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:21:35,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107151579] [2022-10-17 17:21:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:35,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:21:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:21:35,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:21:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:21:36,087 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-10-17 17:21:36,087 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 17:21:36,089 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 17:21:36,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:21:36,099 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 17:21:36,103 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 17:21:36,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 05:21:36 BoogieIcfgContainer [2022-10-17 17:21:36,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 17:21:36,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:21:36,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:21:36,143 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:21:36,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:35" (3/4) ... [2022-10-17 17:21:36,146 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 17:21:36,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:21:36,147 INFO L158 Benchmark]: Toolchain (without parser) took 1931.91ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 53.8MB in the beginning and 80.8MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:21:36,148 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 69.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:21:36,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.52ms. Allocated memory is still 96.5MB. Free memory was 53.6MB in the beginning and 71.3MB in the end (delta: -17.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 17:21:36,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.04ms. Allocated memory is still 96.5MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:21:36,149 INFO L158 Benchmark]: Boogie Preprocessor took 67.47ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 67.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:21:36,150 INFO L158 Benchmark]: RCFGBuilder took 646.31ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 44.4MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-10-17 17:21:36,150 INFO L158 Benchmark]: TraceAbstraction took 843.82ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 80.8MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:21:36,151 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 119.5MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:21:36,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory was 69.9MB in the beginning and 69.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.52ms. Allocated memory is still 96.5MB. Free memory was 53.6MB in the beginning and 71.3MB in the end (delta: -17.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.04ms. Allocated memory is still 96.5MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.47ms. Allocated memory is still 96.5MB. Free memory was 69.6MB in the beginning and 67.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 646.31ms. Allocated memory is still 96.5MB. Free memory was 67.8MB in the beginning and 44.4MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 843.82ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 80.8MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 119.5MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = 0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000, x=0] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=0, huge_floor=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=0] [L25] COND FALSE !(j0 < 23) [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [\old(x)=0, \result=0, huge_floor=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=0] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 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 [2022-10-17 17:21:36,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta --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 635f8984c4511856045f1e30e98d2922ab99db02463dd79a1ad0fa0289476012 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:21:38,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:21:38,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:21:38,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:21:38,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:21:38,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:21:38,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:21:38,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:21:38,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:21:38,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:21:38,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:21:38,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:21:38,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:21:38,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:21:38,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:21:38,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:21:38,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:21:38,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:21:38,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:21:38,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:21:38,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:21:38,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:21:38,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:21:38,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:21:38,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:21:38,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:21:38,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:21:38,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:21:38,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:21:38,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:21:38,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:21:38,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:21:38,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:21:38,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:21:38,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:21:38,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:21:38,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:21:38,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:21:38,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:21:38,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:21:38,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:21:38,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-10-17 17:21:38,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:21:38,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:21:38,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:21:38,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:21:38,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:21:38,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:21:38,897 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:21:38,897 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:21:38,898 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:21:38,898 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:21:38,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:21:38,899 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:21:38,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:21:38,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:21:38,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:21:38,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:21:38,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:21:38,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:21:38,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:21:38,903 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 17:21:38,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 17:21:38,904 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 17:21:38,904 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:21:38,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:21:38,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:21:38,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:21:38,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:21:38,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 17:21:38,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:21:38,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:38,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:21:38,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:21:38,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:21:38,908 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-10-17 17:21:38,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 17:21:38,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:21:38,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:21:38,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 17:21:38,910 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_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635f8984c4511856045f1e30e98d2922ab99db02463dd79a1ad0fa0289476012 [2022-10-17 17:21:39,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:21:39,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:21:39,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:21:39,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:21:39,327 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:21:39,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2022-10-17 17:21:39,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/357b87134/d893aad01a694c9289414d9367fcb4fe/FLAG5d68173ab [2022-10-17 17:21:39,911 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:21:39,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c [2022-10-17 17:21:39,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/357b87134/d893aad01a694c9289414d9367fcb4fe/FLAG5d68173ab [2022-10-17 17:21:40,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/data/357b87134/d893aad01a694c9289414d9367fcb4fe [2022-10-17 17:21:40,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:21:40,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:21:40,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:40,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:21:40,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:21:40,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b11ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40, skipping insertion in model container [2022-10-17 17:21:40,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:21:40,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:21:40,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c[1740,1753] [2022-10-17 17:21:40,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:40,681 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:21:40,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/sv-benchmarks/c/float-newlib/float_req_bl_1052d.c[1740,1753] [2022-10-17 17:21:40,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:21:40,782 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:21:40,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40 WrapperNode [2022-10-17 17:21:40,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:21:40,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:40,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:21:40,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:21:40,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,858 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-10-17 17:21:40,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:21:40,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:21:40,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:21:40,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:21:40,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:21:40,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:21:40,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:21:40,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:21:40,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (1/1) ... [2022-10-17 17:21:40,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:21:40,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:21:40,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:21:40,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:21:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:21:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 17:21:41,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:21:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-10-17 17:21:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 17:21:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:21:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:21:41,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-10-17 17:21:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 17:21:41,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:21:41,130 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:21:41,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:21:41,713 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:21:41,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:21:41,719 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 17:21:41,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:41 BoogieIcfgContainer [2022-10-17 17:21:41,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:21:41,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:21:41,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:21:41,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:21:41,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:21:40" (1/3) ... [2022-10-17 17:21:41,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dc3866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:41, skipping insertion in model container [2022-10-17 17:21:41,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:21:40" (2/3) ... [2022-10-17 17:21:41,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dc3866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:21:41, skipping insertion in model container [2022-10-17 17:21:41,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:41" (3/3) ... [2022-10-17 17:21:41,731 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d.c [2022-10-17 17:21:41,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:21:41,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:21:41,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:21:41,846 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@255fb495, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:21:41,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:21:41,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:41,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:21:41,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:41,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:41,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:41,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:41,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2022-10-17 17:21:41,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:21:41,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960050555] [2022-10-17 17:21:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:41,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:21:41,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:21:41,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:21:41,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 17:21:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:42,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 17:21:42,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:42,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:42,086 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:21:42,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960050555] [2022-10-17 17:21:42,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960050555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:42,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:42,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:21:42,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234874829] [2022-10-17 17:21:42,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:42,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 17:21:42,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:21:42,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 17:21:42,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:21:42,138 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2022-10-17 17:21:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:42,163 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2022-10-17 17:21:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 17:21:42,166 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 [2022-10-17 17:21:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:42,175 INFO L225 Difference]: With dead ends: 58 [2022-10-17 17:21:42,175 INFO L226 Difference]: Without dead ends: 27 [2022-10-17 17:21:42,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 17:21:42,184 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:42,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:21:42,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-17 17:21:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-17 17:21:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-10-17 17:21:42,227 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2022-10-17 17:21:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:42,227 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-10-17 17:21:42,228 INFO L496 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) [2022-10-17 17:21:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-10-17 17:21:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:21:42,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:42,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:42,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:42,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:21:42,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:42,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:42,444 INFO L85 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2022-10-17 17:21:42,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:21:42,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836227339] [2022-10-17 17:21:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:42,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:21:42,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:21:42,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:21:42,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 17:21:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:42,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:21:42,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:42,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:42,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:21:42,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836227339] [2022-10-17 17:21:42,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836227339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:42,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:42,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:21:42,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796087804] [2022-10-17 17:21:42,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:42,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:21:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:21:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:21:42,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:21:42,800 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:43,122 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2022-10-17 17:21:43,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:21:43,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-17 17:21:43,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:43,124 INFO L225 Difference]: With dead ends: 48 [2022-10-17 17:21:43,124 INFO L226 Difference]: Without dead ends: 38 [2022-10-17 17:21:43,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:21:43,126 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 27 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:43,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 116 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 8 Unchecked, 0.3s Time] [2022-10-17 17:21:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-17 17:21:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2022-10-17 17:21:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-10-17 17:21:43,133 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2022-10-17 17:21:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:43,134 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-10-17 17:21:43,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-17 17:21:43,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:21:43,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:43,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:43,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:43,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:21:43,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:43,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1311186430, now seen corresponding path program 1 times [2022-10-17 17:21:43,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:21:43,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768993113] [2022-10-17 17:21:43,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:43,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:21:43,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:21:43,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:21:43,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 17:21:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:43,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:21:43,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:43,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:43,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:21:43,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768993113] [2022-10-17 17:21:43,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768993113] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:43,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:43,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 17:21:43,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552647567] [2022-10-17 17:21:43,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:43,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 17:21:43,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:21:43,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 17:21:43,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 17:21:43,593 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:43,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:43,785 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2022-10-17 17:21:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 17:21:43,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-17 17:21:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:43,789 INFO L225 Difference]: With dead ends: 50 [2022-10-17 17:21:43,789 INFO L226 Difference]: Without dead ends: 34 [2022-10-17 17:21:43,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 17:21:43,791 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 27 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:43,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 91 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2022-10-17 17:21:43,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-17 17:21:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2022-10-17 17:21:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-10-17 17:21:43,797 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2022-10-17 17:21:43,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:43,797 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-10-17 17:21:43,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:43,798 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-10-17 17:21:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:21:43,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:43,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:43,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-10-17 17:21:44,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:21:44,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:44,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2022-10-17 17:21:44,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:21:44,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571617280] [2022-10-17 17:21:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:44,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:21:44,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:21:44,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:21:44,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-10-17 17:21:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:44,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 17:21:44,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:44,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:44,326 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:21:44,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571617280] [2022-10-17 17:21:44,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571617280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:44,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:44,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:21:44,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032770037] [2022-10-17 17:21:44,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:44,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 17:21:44,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:21:44,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 17:21:44,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:21:44,329 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:44,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:44,373 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-10-17 17:21:44,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 17:21:44,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-17 17:21:44,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:44,375 INFO L225 Difference]: With dead ends: 34 [2022-10-17 17:21:44,375 INFO L226 Difference]: Without dead ends: 22 [2022-10-17 17:21:44,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 17:21:44,377 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:44,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 17:21:44,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-10-17 17:21:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-10-17 17:21:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-10-17 17:21:44,381 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2022-10-17 17:21:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:44,382 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-10-17 17:21:44,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-10-17 17:21:44,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 17:21:44,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:44,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:44,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:44,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:21:44,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:44,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:44,584 INFO L85 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2022-10-17 17:21:44,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:21:44,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340784142] [2022-10-17 17:21:44,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:44,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:21:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:21:44,587 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:21:44,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-10-17 17:21:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:44,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 17:21:44,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:44,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:44,817 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:21:44,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340784142] [2022-10-17 17:21:44,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340784142] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:44,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:44,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 17:21:44,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185493908] [2022-10-17 17:21:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:44,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:21:44,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:21:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:21:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:21:44,821 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:44,997 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-10-17 17:21:44,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 17:21:44,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-17 17:21:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:45,000 INFO L225 Difference]: With dead ends: 34 [2022-10-17 17:21:45,000 INFO L226 Difference]: Without dead ends: 21 [2022-10-17 17:21:45,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 17:21:45,001 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:45,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 25 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 17:21:45,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-17 17:21:45,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-17 17:21:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2022-10-17 17:21:45,011 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2022-10-17 17:21:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:45,012 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2022-10-17 17:21:45,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:45,012 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2022-10-17 17:21:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 17:21:45,014 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:21:45,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:21:45,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:21:45,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:21:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:21:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2022-10-17 17:21:45,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-10-17 17:21:45,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824577743] [2022-10-17 17:21:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:21:45,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 17:21:45,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat [2022-10-17 17:21:45,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 17:21:45,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-10-17 17:21:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:21:45,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-17 17:21:45,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:21:45,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 17:21:45,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2022-10-17 17:21:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:21:45,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 17:21:45,707 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-10-17 17:21:45,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824577743] [2022-10-17 17:21:45,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824577743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:21:45,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:21:45,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 17:21:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871467020] [2022-10-17 17:21:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:21:45,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 17:21:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-10-17 17:21:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 17:21:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-17 17:21:45,709 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:21:45,817 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2022-10-17 17:21:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 17:21:45,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-17 17:21:45,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:21:45,817 INFO L225 Difference]: With dead ends: 21 [2022-10-17 17:21:45,817 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 17:21:45,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-17 17:21:45,819 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:21:45,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 79 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-10-17 17:21:45,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 17:21:45,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 17:21:45,820 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) [2022-10-17 17:21:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 17:21:45,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-10-17 17:21:45,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:21:45,821 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 17:21:45,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:21:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 17:21:45,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:21:45,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 17:21:45,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-10-17 17:21:46,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/mathsat -unsat_core_generation=3 [2022-10-17 17:21:46,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 17:21:46,240 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2022-10-17 17:21:46,240 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2022-10-17 17:21:46,241 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2022-10-17 17:21:46,242 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start_floor_float_#res#1| .cse0) (= |ULTIMATE.start_floor_float_~i0~0#1| (_ bv0 32)) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) |ULTIMATE.start_main_#t~short9#1| (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (and (= |ULTIMATE.start___signbit_float_~x#1| (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (_ bv0 32) .cse1)))) (= |ULTIMATE.start_floor_float_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-10-17 17:21:46,242 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2022-10-17 17:21:46,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2022-10-17 17:21:46,242 INFO L902 garLoopResultBuilder]: At program point L86(lines 70 87) the Hoare annotation is: true [2022-10-17 17:21:46,242 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-10-17 17:21:46,243 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2022-10-17 17:21:46,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 17:21:46,243 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2022-10-17 17:21:46,243 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2022-10-17 17:21:46,243 INFO L895 garLoopResultBuilder]: At program point L50-1(lines 15 56) the Hoare annotation is: (and (= |ULTIMATE.start_floor_float_~i0~0#1| (_ bv0 32)) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start_floor_float_~x#1| (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven)) [2022-10-17 17:21:46,243 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2022-10-17 17:21:46,243 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2022-10-17 17:21:46,244 INFO L895 garLoopResultBuilder]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) (= |ULTIMATE.start_floor_float_#res#1| .cse0) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|)) .cse0) (= |ULTIMATE.start_floor_float_~i0~0#1| (_ bv0 32)) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) |ULTIMATE.start_main_#t~short9#1| (= |ULTIMATE.start_floor_float_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2022-10-17 17:21:46,244 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2022-10-17 17:21:46,244 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2022-10-17 17:21:46,244 INFO L895 garLoopResultBuilder]: At program point L55(lines 15 56) the Hoare annotation is: (and (= |ULTIMATE.start_floor_float_~i0~0#1| (_ bv0 32)) (exists ((|v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (and (= |ULTIMATE.start_floor_float_#res#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= (_ bv0 32) .cse0)))) (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start_floor_float_~x#1| (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven)) [2022-10-17 17:21:46,244 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2022-10-17 17:21:46,245 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ~huge_floor~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start_floor_float_~x#1| (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven)) [2022-10-17 17:21:46,245 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2022-10-17 17:21:46,245 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2022-10-17 17:21:46,245 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2022-10-17 17:21:46,248 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 17:21:46,250 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 17:21:46,260 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,263 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,265 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,265 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,266 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,266 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,268 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,270 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,271 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,271 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,271 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,271 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,273 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 05:21:46 BoogieIcfgContainer [2022-10-17 17:21:46,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 17:21:46,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:21:46,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:21:46,275 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:21:46,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:21:41" (3/4) ... [2022-10-17 17:21:46,278 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:21:46,288 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-10-17 17:21:46,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-10-17 17:21:46,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 17:21:46,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:21:46,315 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((i0 == 0bv32 && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9 : bv32 :: \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][22:0]) && 0bv32 == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32])) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-10-17 17:21:46,316 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9 : bv32 :: x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][22:0]) && 0bv32 == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32])) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-10-17 17:21:46,316 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0bv32 && \result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && i0 == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-10-17 17:21:46,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/witness.graphml [2022-10-17 17:21:46,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:21:46,329 INFO L158 Benchmark]: Toolchain (without parser) took 6031.90ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 44.3MB in the beginning and 38.1MB in the end (delta: 6.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-10-17 17:21:46,329 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:21:46,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.31ms. Allocated memory is still 65.0MB. Free memory was 44.1MB in the beginning and 47.2MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:21:46,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.08ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 45.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:21:46,330 INFO L158 Benchmark]: Boogie Preprocessor took 91.22ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 43.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:21:46,331 INFO L158 Benchmark]: RCFGBuilder took 769.04ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 30.2MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 17:21:46,331 INFO L158 Benchmark]: TraceAbstraction took 4549.79ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 29.5MB in the beginning and 40.8MB in the end (delta: -11.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-10-17 17:21:46,332 INFO L158 Benchmark]: Witness Printer took 53.87ms. Allocated memory is still 90.2MB. Free memory was 40.8MB in the beginning and 38.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:21:46,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.31ms. Allocated memory is still 65.0MB. Free memory was 44.1MB in the beginning and 47.2MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.08ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 45.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 91.22ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 43.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 769.04ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 30.2MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4549.79ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 29.5MB in the beginning and 40.8MB in the end (delta: -11.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 53.87ms. Allocated memory is still 90.2MB. Free memory was 40.8MB in the beginning and 38.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] - 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: 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, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 382 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 41 IncrementalHoareTripleChecker+Unchecked, 227 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 155 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 187 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 8 QuantifiedInterpolants, 447 SizeOfPredicates, 34 NumberOfNonLiveVariables, 303 ConjunctsInSsa, 56 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: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2022-10-17 17:21:46,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((\result == 0bv32 && \result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && i0 == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 18]: Loop Invariant [2022-10-17 17:21:46,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2022-10-17 17:21:46,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,345 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((i0 == 0bv32 && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 61]: Loop Invariant [2022-10-17 17:21:46,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,346 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,347 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,347 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\result == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23) && i0 == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9 : bv32 :: x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][22:0]) && 0bv32 == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32])) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2022-10-17 17:21:46,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,348 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-10-17 17:21:46,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9,QUANTIFIED] [2022-10-17 17:21:46,350 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((i0 == 0bv32 && (\exists v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9 : bv32 :: \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32][22:0]) && 0bv32 == unknown-#memory_int-unknown[v_ULTIMATE.start_floor_float_~#sf_u~0#1.base_9][0bv32])) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && x == ~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-10-17 17:21:46,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6e20d90-b15b-4236-8af2-e17ff1838500/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE