./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04255db23fa2b33ef965cf216e618982ce4f05405d3eba07d1c5e94169a40ce3 --- 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 10:15:19,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:15:19,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:15:19,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:15:19,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:15:19,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:15:19,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:15:19,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:15:19,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:15:19,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:15:19,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:15:19,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:15:19,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:15:19,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:15:19,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:15:19,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:15:19,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:15:19,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:15:19,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:15:19,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:15:19,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:15:19,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:15:19,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:15:19,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:15:19,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:15:19,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:15:19,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:15:19,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:15:19,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:15:19,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:15:19,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:15:19,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:15:19,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:15:19,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:15:19,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:15:19,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:15:19,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:15:19,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:15:19,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:15:19,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:15:19,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:15:19,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:15:19,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:15:19,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:15:19,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:15:19,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:15:19,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:15:19,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:15:19,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:15:19,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:15:19,801 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:15:19,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:15:19,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:15:19,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:15:19,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:15:19,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:15:19,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:15:19,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:15:19,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:15:19,804 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:15:19,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:15:19,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:15:19,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:15:19,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:15:19,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:15:19,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:15:19,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:15:19,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:15:19,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:15:19,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:15:19,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:15:19,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:15:19,807 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:15:19,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:15:19,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:15:19,808 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04255db23fa2b33ef965cf216e618982ce4f05405d3eba07d1c5e94169a40ce3 [2022-10-17 10:15:20,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:15:20,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:15:20,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:15:20,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:15:20,088 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:15:20,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2022-10-17 10:15:20,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/0de9c1287/402fb0cc277646d8b6d5f0ebd2bee2d8/FLAG17e0f8f85 [2022-10-17 10:15:20,604 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:15:20,604 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2022-10-17 10:15:20,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/0de9c1287/402fb0cc277646d8b6d5f0ebd2bee2d8/FLAG17e0f8f85 [2022-10-17 10:15:20,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/0de9c1287/402fb0cc277646d8b6d5f0ebd2bee2d8 [2022-10-17 10:15:20,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:15:20,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:15:20,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:15:20,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:15:20,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:15:20,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:15:20" (1/1) ... [2022-10-17 10:15:20,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e981278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:20, skipping insertion in model container [2022-10-17 10:15:20,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:15:20" (1/1) ... [2022-10-17 10:15:20,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:15:21,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:15:21,363 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c[6873,6886] [2022-10-17 10:15:21,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:15:21,375 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:15:21,424 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c[6873,6886] [2022-10-17 10:15:21,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:15:21,443 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:15:21,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21 WrapperNode [2022-10-17 10:15:21,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:15:21,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:15:21,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:15:21,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:15:21,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,541 INFO L138 Inliner]: procedures = 21, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 313 [2022-10-17 10:15:21,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:15:21,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:15:21,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:15:21,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:15:21,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:15:21,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:15:21,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:15:21,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:15:21,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (1/1) ... [2022-10-17 10:15:21,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:15:21,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:15:21,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:15:21,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:15:21,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:15:21,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:15:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:15:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 10:15:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:15:21,735 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-10-17 10:15:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-10-17 10:15:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-17 10:15:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-10-17 10:15:21,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-10-17 10:15:21,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:15:21,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:15:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:15:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-10-17 10:15:21,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:15:21,911 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:15:21,929 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:15:22,684 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:15:22,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:15:22,700 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-10-17 10:15:22,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:22 BoogieIcfgContainer [2022-10-17 10:15:22,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:15:22,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:15:22,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:15:22,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:15:22,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:15:20" (1/3) ... [2022-10-17 10:15:22,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c86870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:15:22, skipping insertion in model container [2022-10-17 10:15:22,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:21" (2/3) ... [2022-10-17 10:15:22,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c86870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:15:22, skipping insertion in model container [2022-10-17 10:15:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:22" (3/3) ... [2022-10-17 10:15:22,715 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682b.c [2022-10-17 10:15:22,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:15:22,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:15:22,814 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:15:22,823 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64157142, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:15:22,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:15:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 108 states have (on average 1.7222222222222223) internal successors, (186), 109 states have internal predecessors, (186), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:15:22,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:15:22,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:22,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:22,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:15:22,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:22,847 INFO L85 PathProgramCache]: Analyzing trace with hash 334403016, now seen corresponding path program 1 times [2022-10-17 10:15:22,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:15:22,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001207635] [2022-10-17 10:15:22,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:22,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:15:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:23,209 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 10:15:23,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:15:23,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001207635] [2022-10-17 10:15:23,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001207635] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:23,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:23,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:15:23,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434461655] [2022-10-17 10:15:23,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:23,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:15:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:15:23,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:15:23,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:15:23,268 INFO L87 Difference]: Start difference. First operand has 116 states, 108 states have (on average 1.7222222222222223) internal successors, (186), 109 states have internal predecessors, (186), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 10:15:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:23,351 INFO L93 Difference]: Finished difference Result 230 states and 390 transitions. [2022-10-17 10:15:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:15:23,355 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 10:15:23,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:23,367 INFO L225 Difference]: With dead ends: 230 [2022-10-17 10:15:23,367 INFO L226 Difference]: Without dead ends: 112 [2022-10-17 10:15:23,373 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 10:15:23,378 INFO L413 NwaCegarLoop]: 167 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, 167 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 10:15:23,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:15:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-17 10:15:23,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-10-17 10:15:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 105 states have (on average 1.4666666666666666) internal successors, (154), 105 states have internal predecessors, (154), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:15:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2022-10-17 10:15:23,439 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 15 [2022-10-17 10:15:23,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:23,440 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2022-10-17 10:15:23,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 10:15:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2022-10-17 10:15:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 10:15:23,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:23,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:23,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:15:23,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:15:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:23,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1239810759, now seen corresponding path program 1 times [2022-10-17 10:15:23,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:15:23,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246360410] [2022-10-17 10:15:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:23,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:15:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:23,772 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 10:15:23,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:15:23,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246360410] [2022-10-17 10:15:23,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246360410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:23,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:23,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:15:23,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540366800] [2022-10-17 10:15:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:23,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:15:23,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:15:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:15:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:23,780 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 10:15:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:23,818 INFO L93 Difference]: Finished difference Result 213 states and 312 transitions. [2022-10-17 10:15:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:15:23,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-17 10:15:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:23,822 INFO L225 Difference]: With dead ends: 213 [2022-10-17 10:15:23,822 INFO L226 Difference]: Without dead ends: 112 [2022-10-17 10:15:23,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:23,825 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 318 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 10:15:23,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 318 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:15:23,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-17 10:15:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-10-17 10:15:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 105 states have (on average 1.457142857142857) internal successors, (153), 105 states have internal predecessors, (153), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:15:23,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 161 transitions. [2022-10-17 10:15:23,840 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 161 transitions. Word has length 18 [2022-10-17 10:15:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:23,840 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 161 transitions. [2022-10-17 10:15:23,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 10:15:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 161 transitions. [2022-10-17 10:15:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 10:15:23,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:23,842 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, 1, 1] [2022-10-17 10:15:23,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:15:23,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:15:23,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:23,843 INFO L85 PathProgramCache]: Analyzing trace with hash -386906492, now seen corresponding path program 1 times [2022-10-17 10:15:23,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:15:23,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089096663] [2022-10-17 10:15:23,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:23,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:15:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:15:24,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:15:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:15:24,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:15:24,620 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:15:24,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:15:24,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:15:24,628 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-17 10:15:24,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:15:24,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:15:24 BoogieIcfgContainer [2022-10-17 10:15:24,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:15:24,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:15:24,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:15:24,688 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:15:24,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:22" (3/4) ... [2022-10-17 10:15:24,692 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:15:24,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:15:24,694 INFO L158 Benchmark]: Toolchain (without parser) took 3711.44ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 62.2MB in the beginning and 41.6MB in the end (delta: 20.6MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2022-10-17 10:15:24,694 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:15:24,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.50ms. Allocated memory is still 102.8MB. Free memory was 61.9MB in the beginning and 71.6MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:15:24,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.34ms. Allocated memory is still 102.8MB. Free memory was 71.6MB in the beginning and 66.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:15:24,697 INFO L158 Benchmark]: Boogie Preprocessor took 72.23ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 62.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:15:24,697 INFO L158 Benchmark]: RCFGBuilder took 1087.60ms. Allocated memory is still 102.8MB. Free memory was 62.1MB in the beginning and 55.8MB in the end (delta: 6.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-10-17 10:15:24,698 INFO L158 Benchmark]: TraceAbstraction took 1980.18ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 55.2MB in the beginning and 41.6MB in the end (delta: 13.7MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2022-10-17 10:15:24,699 INFO L158 Benchmark]: Witness Printer took 5.25ms. Allocated memory is still 134.2MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:15:24,702 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 102.8MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.50ms. Allocated memory is still 102.8MB. Free memory was 61.9MB in the beginning and 71.6MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.34ms. Allocated memory is still 102.8MB. Free memory was 71.6MB in the beginning and 66.5MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.23ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 62.1MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1087.60ms. Allocated memory is still 102.8MB. Free memory was 62.1MB in the beginning and 55.8MB in the end (delta: 6.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1980.18ms. Allocated memory was 102.8MB in the beginning and 134.2MB in the end (delta: 31.5MB). Free memory was 55.2MB in the beginning and 41.6MB in the end (delta: 13.7MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * Witness Printer took 5.25ms. Allocated memory is still 134.2MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 287]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 268, overapproximation of someBinaryDOUBLEComparisonOperation at line 286. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L278] double x = -1.0 / 0.0; [L279] double y = __VERIFIER_nondet_double(); [L281] CALL, EXPR isinf_double(x) [L248] __int32_t hx, lx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, \result=1, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, zero_atan2=0] [L281] RET, EXPR isinf_double(x) [L281] EXPR isinf_double(x) && isfinite_double(y) [L281] CALL, EXPR isfinite_double(y) [L262] __int32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, \result=1, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L281] RET, EXPR isfinite_double(y) [L281] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isfinite_double(y)=1, isinf_double(x)=1, isinf_double(x) && isfinite_double(y)=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L281] COND TRUE isinf_double(x) && isfinite_double(y) && y > 0.0 [L283] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=0, lx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, ix=0, iy=0, lx=0, ly=13, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=0, ix=0, iy=0, lx=0, ly=13, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L283] RET, EXPR __ieee754_atan2(y, x) [L283] double res = __ieee754_atan2(y, x); [L286] COND TRUE res != pi VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] [L287] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000018, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000019, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 116 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 485 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 329 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 10:15:24,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04255db23fa2b33ef965cf216e618982ce4f05405d3eba07d1c5e94169a40ce3 --- 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 10:15:27,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:15:27,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:15:27,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:15:27,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:15:27,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:15:27,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:15:27,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:15:27,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:15:27,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:15:27,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:15:27,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:15:27,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:15:27,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:15:27,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:15:27,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:15:27,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:15:27,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:15:27,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:15:27,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:15:27,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:15:27,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:15:27,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:15:27,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:15:27,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:15:27,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:15:27,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:15:27,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:15:27,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:15:27,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:15:27,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:15:27,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:15:27,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:15:27,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:15:27,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:15:27,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:15:27,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:15:27,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:15:27,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:15:27,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:15:27,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:15:27,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-10-17 10:15:27,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:15:27,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:15:27,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:15:27,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:15:27,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:15:27,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:15:27,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:15:27,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:15:27,662 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:15:27,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:15:27,662 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:15:27,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:15:27,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:15:27,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:15:27,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:15:27,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:15:27,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:15:27,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:15:27,664 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:15:27,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:15:27,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:15:27,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:15:27,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:15:27,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:15:27,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:15:27,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:15:27,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:15:27,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:15:27,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:15:27,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:15:27,668 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:15:27,668 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:15:27,668 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:15:27,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:15:27,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:15:27,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:15:27,669 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04255db23fa2b33ef965cf216e618982ce4f05405d3eba07d1c5e94169a40ce3 [2022-10-17 10:15:28,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:15:28,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:15:28,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:15:28,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:15:28,142 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:15:28,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2022-10-17 10:15:28,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/0be3770f7/bf7f7655d75e4be3821c5bdd9e88a4e8/FLAG0167629cc [2022-10-17 10:15:28,866 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:15:28,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c [2022-10-17 10:15:28,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/0be3770f7/bf7f7655d75e4be3821c5bdd9e88a4e8/FLAG0167629cc [2022-10-17 10:15:29,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/data/0be3770f7/bf7f7655d75e4be3821c5bdd9e88a4e8 [2022-10-17 10:15:29,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:15:29,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:15:29,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:15:29,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:15:29,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:15:29,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303d40c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29, skipping insertion in model container [2022-10-17 10:15:29,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:15:29,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:15:29,477 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c[6873,6886] [2022-10-17 10:15:29,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:15:29,501 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:15:29,574 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_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/sv-benchmarks/c/float-newlib/double_req_bl_0682b.c[6873,6886] [2022-10-17 10:15:29,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:15:29,602 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:15:29,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29 WrapperNode [2022-10-17 10:15:29,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:15:29,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:15:29,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:15:29,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:15:29,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,673 INFO L138 Inliner]: procedures = 24, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2022-10-17 10:15:29,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:15:29,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:15:29,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:15:29,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:15:29,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:15:29,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:15:29,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:15:29,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:15:29,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (1/1) ... [2022-10-17 10:15:29,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:15:29,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:15:29,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:15:29,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:15:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-10-17 10:15:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-10-17 10:15:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:15:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:15:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-10-17 10:15:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-10-17 10:15:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-10-17 10:15:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-10-17 10:15:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-10-17 10:15:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:15:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:15:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:15:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:15:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:15:30,063 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:15:30,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:15:53,317 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:15:53,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:15:53,329 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-10-17 10:15:53,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:53 BoogieIcfgContainer [2022-10-17 10:15:53,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:15:53,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:15:53,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:15:53,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:15:53,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:15:29" (1/3) ... [2022-10-17 10:15:53,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc7dac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:15:53, skipping insertion in model container [2022-10-17 10:15:53,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:15:29" (2/3) ... [2022-10-17 10:15:53,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc7dac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:15:53, skipping insertion in model container [2022-10-17 10:15:53,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:53" (3/3) ... [2022-10-17 10:15:53,351 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682b.c [2022-10-17 10:15:53,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:15:53,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:15:53,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:15:53,450 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e4d909e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:15:53,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:15:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:15:53,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:15:53,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:53,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:53,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:15:53,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:53,471 INFO L85 PathProgramCache]: Analyzing trace with hash -233161701, now seen corresponding path program 1 times [2022-10-17 10:15:53,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:53,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86277811] [2022-10-17 10:15:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:53,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:53,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:53,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:53,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:15:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:54,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:15:54,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:54,105 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 10:15:54,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:54,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:54,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86277811] [2022-10-17 10:15:54,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86277811] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:54,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:54,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:15:54,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763993895] [2022-10-17 10:15:54,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:54,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:15:54,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:15:54,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:15:54,170 INFO L87 Difference]: Start difference. First operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 10:15:54,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:54,236 INFO L93 Difference]: Finished difference Result 204 states and 332 transitions. [2022-10-17 10:15:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:15:54,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 10:15:54,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:54,260 INFO L225 Difference]: With dead ends: 204 [2022-10-17 10:15:54,261 INFO L226 Difference]: Without dead ends: 99 [2022-10-17 10:15:54,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 10:15:54,272 INFO L413 NwaCegarLoop]: 144 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, 144 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 10:15:54,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:15:54,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-17 10:15:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-10-17 10:15:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:15:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2022-10-17 10:15:54,360 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 15 [2022-10-17 10:15:54,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:54,361 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2022-10-17 10:15:54,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 10:15:54,362 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2022-10-17 10:15:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 10:15:54,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:54,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:54,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:54,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:54,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:15:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash -114752879, now seen corresponding path program 1 times [2022-10-17 10:15:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:54,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183449515] [2022-10-17 10:15:54,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:54,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:54,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:54,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:54,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:15:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:55,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:15:55,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:55,161 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 10:15:55,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:55,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:55,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183449515] [2022-10-17 10:15:55,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183449515] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:55,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:55,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:15:55,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898824864] [2022-10-17 10:15:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:55,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:15:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:55,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:15:55,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:55,167 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 10:15:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:55,298 INFO L93 Difference]: Finished difference Result 187 states and 266 transitions. [2022-10-17 10:15:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:15:55,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-17 10:15:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:55,302 INFO L225 Difference]: With dead ends: 187 [2022-10-17 10:15:55,302 INFO L226 Difference]: Without dead ends: 99 [2022-10-17 10:15:55,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:55,305 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:55,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:15:55,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-17 10:15:55,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-10-17 10:15:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 10:15:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2022-10-17 10:15:55,317 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 18 [2022-10-17 10:15:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:55,318 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2022-10-17 10:15:55,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 10:15:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2022-10-17 10:15:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 10:15:55,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:55,319 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, 1, 1] [2022-10-17 10:15:55,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-10-17 10:15:55,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:55,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:15:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2086328612, now seen corresponding path program 1 times [2022-10-17 10:15:55,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:55,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762564326] [2022-10-17 10:15:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:55,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:55,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:55,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:55,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e14b4e5-7c7f-4a19-bb99-86ce04ca2b0c/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 10:15:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:56,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-17 10:15:56,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:56,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-10-17 10:15:58,562 INFO L356 Elim1Store]: treesize reduction 14, result has 44.0 percent of original size [2022-10-17 10:15:58,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31