./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3056a4b69d64ad96b8ce8f2e45c980f4c3dd373f3ab0ec649937fe8cb85b92b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:30:28,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:30:28,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:30:28,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:30:28,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:30:28,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:30:28,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:30:28,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:30:28,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:30:28,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:30:28,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:30:28,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:30:29,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:30:29,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:30:29,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:30:29,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:30:29,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:30:29,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:30:29,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:30:29,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:30:29,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:30:29,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:30:29,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:30:29,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:30:29,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:30:29,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:30:29,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:30:29,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:30:29,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:30:29,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:30:29,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:30:29,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:30:29,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:30:29,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:30:29,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:30:29,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:30:29,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:30:29,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:30:29,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:30:29,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:30:29,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:30:29,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:30:29,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:30:29,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:30:29,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:30:29,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:30:29,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:30:29,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:30:29,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:30:29,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:30:29,122 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:30:29,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:30:29,124 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:30:29,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:30:29,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:30:29,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:30:29,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:30:29,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:30:29,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:30:29,126 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:30:29,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:30:29,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:30:29,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:30:29,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:30:29,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:30:29,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:30:29,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:30:29,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:30:29,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:30:29,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:30:29,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:30:29,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:30:29,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:30:29,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:30:29,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:30:29,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:30:29,133 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_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3056a4b69d64ad96b8ce8f2e45c980f4c3dd373f3ab0ec649937fe8cb85b92b [2021-11-19 04:30:29,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:30:29,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:30:29,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:30:29,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:30:29,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:30:29,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2021-11-19 04:30:29,579 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/4d6d84818/8d70a01ef12e4ac0a322b70b8095e06a/FLAG07a108e6d [2021-11-19 04:30:30,146 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:30:30,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2021-11-19 04:30:30,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/4d6d84818/8d70a01ef12e4ac0a322b70b8095e06a/FLAG07a108e6d [2021-11-19 04:30:30,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/4d6d84818/8d70a01ef12e4ac0a322b70b8095e06a [2021-11-19 04:30:30,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:30:30,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:30:30,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:30:30,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:30:30,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:30:30,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f4314d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30, skipping insertion in model container [2021-11-19 04:30:30,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:30:30,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:30:30,790 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_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2021-11-19 04:30:30,793 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:30:30,802 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:30:30,869 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_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2021-11-19 04:30:30,870 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:30:30,887 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:30:30,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30 WrapperNode [2021-11-19 04:30:30,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:30:30,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:30:30,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:30:30,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:30:30,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,973 INFO L137 Inliner]: procedures = 17, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 284 [2021-11-19 04:30:30,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:30:30,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:30:30,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:30:30,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:30:30,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:30,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:31,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:31,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:31,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:31,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:30:31,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:30:31,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:30:31,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:30:31,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (1/1) ... [2021-11-19 04:30:31,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:30:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:30:31,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:30:31,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:30:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:30:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:30:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:30:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 04:30:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:30:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 04:30:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:30:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:30:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:30:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:30:31,230 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:30:31,232 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:30:31,721 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:30:31,728 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:30:31,729 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-19 04:30:31,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:30:31 BoogieIcfgContainer [2021-11-19 04:30:31,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:30:31,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:30:31,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:30:31,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:30:31,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:30:30" (1/3) ... [2021-11-19 04:30:31,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432cef40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:30:31, skipping insertion in model container [2021-11-19 04:30:31,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:30" (2/3) ... [2021-11-19 04:30:31,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432cef40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:30:31, skipping insertion in model container [2021-11-19 04:30:31,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:30:31" (3/3) ... [2021-11-19 04:30:31,742 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270a.c [2021-11-19 04:30:31,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:30:31,749 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:30:31,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:30:31,831 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:30:31,832 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:30:31,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 69 states have (on average 1.681159420289855) internal successors, (116), 70 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:31,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 04:30:31,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:30:31,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:30:31,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:30:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:30:31,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1035834224, now seen corresponding path program 1 times [2021-11-19 04:30:31,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:30:31,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737790896] [2021-11-19 04:30:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:30:31,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:30:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:30:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:30:32,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:30:32,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737790896] [2021-11-19 04:30:32,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737790896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:30:32,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:30:32,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:30:32,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803012913] [2021-11-19 04:30:32,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:30:32,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:30:32,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:30:32,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:30:32,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:30:32,139 INFO L87 Difference]: Start difference. First operand has 71 states, 69 states have (on average 1.681159420289855) internal successors, (116), 70 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:30:32,169 INFO L93 Difference]: Finished difference Result 140 states and 230 transitions. [2021-11-19 04:30:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:30:32,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-19 04:30:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:30:32,182 INFO L225 Difference]: With dead ends: 140 [2021-11-19 04:30:32,194 INFO L226 Difference]: Without dead ends: 68 [2021-11-19 04:30:32,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:30:32,203 INFO L933 BasicCegarLoop]: 97 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, 97 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:30:32,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:30:32,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-19 04:30:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-19 04:30:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:32,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2021-11-19 04:30:32,291 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 10 [2021-11-19 04:30:32,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:30:32,292 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2021-11-19 04:30:32,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2021-11-19 04:30:32,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:30:32,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:30:32,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:30:32,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:30:32,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:30:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:30:32,295 INFO L85 PathProgramCache]: Analyzing trace with hash -744853926, now seen corresponding path program 1 times [2021-11-19 04:30:32,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:30:32,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724239001] [2021-11-19 04:30:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:30:32,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:30:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:30:32,337 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:30:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:30:32,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:30:32,415 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:30:32,418 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:30:32,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:30:32,428 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 04:30:32,434 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:30:32,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:30:32 BoogieIcfgContainer [2021-11-19 04:30:32,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:30:32,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:30:32,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:30:32,511 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:30:32,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:30:31" (3/4) ... [2021-11-19 04:30:32,516 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:30:32,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:30:32,519 INFO L158 Benchmark]: Toolchain (without parser) took 2051.09ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 44.6MB in the beginning and 73.4MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:30:32,519 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:30:32,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.30ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 44.4MB in the beginning and 77.3MB in the end (delta: -32.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:30:32,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.31ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 74.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:30:32,529 INFO L158 Benchmark]: Boogie Preprocessor took 56.47ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:30:32,530 INFO L158 Benchmark]: RCFGBuilder took 694.14ms. Allocated memory is still 104.9MB. Free memory was 72.4MB in the beginning and 52.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-19 04:30:32,531 INFO L158 Benchmark]: TraceAbstraction took 776.67ms. Allocated memory is still 104.9MB. Free memory was 52.2MB in the beginning and 73.4MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:30:32,531 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 104.9MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:30:32,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 81.8MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.30ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 44.4MB in the beginning and 77.3MB in the end (delta: -32.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.31ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 74.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.47ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.14ms. Allocated memory is still 104.9MB. Free memory was 72.4MB in the beginning and 52.5MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 776.67ms. Allocated memory is still 104.9MB. Free memory was 52.2MB in the beginning and 73.4MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 104.9MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 242]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 150, overapproximation of bitwiseAnd at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 185, overapproximation of someBinaryDOUBLEComparisonOperation at line 241. Possible FailurePath: [L18] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L144-L158] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L237] double x = 0.0; [L238] CALL, EXPR __ieee754_asin(x) [L161] double t, w, p, q, c, r, s; [L162] __int32_t hx, ix; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L164] ieee_double_shape_type gh_u; [L165] gh_u.value = (x) [L166] EXPR gh_u.parts.msw [L166] (hx) = gh_u.parts.msw [L168] ix = hx & 0x7fffffff VAL [\old(x)=0, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L169] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=0, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L180] COND TRUE ix < 0x3fe00000 VAL [\old(x)=0, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L181] COND FALSE !(ix < 0x3e400000) [L185] t = x * x [L186-L189] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L190-L191] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L192] w = p / q [L193] return x + x * w; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, ix=1044381696, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L238] RET, EXPR __ieee754_asin(x) [L238] double res = __ieee754_asin(x); [L241] COND TRUE res != x VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L242] reach_error() VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 97 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 04:30:32,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3056a4b69d64ad96b8ce8f2e45c980f4c3dd373f3ab0ec649937fe8cb85b92b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:30:35,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:30:35,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:30:35,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:30:35,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:30:35,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:30:35,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:30:35,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:30:35,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:30:35,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:30:35,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:30:35,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:30:35,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:30:35,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:30:35,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:30:35,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:30:35,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:30:35,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:30:35,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:30:35,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:30:35,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:30:35,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:30:35,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:30:35,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:30:35,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:30:35,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:30:35,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:30:35,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:30:35,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:30:35,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:30:35,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:30:35,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:30:35,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:30:35,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:30:35,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:30:35,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:30:35,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:30:35,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:30:35,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:30:35,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:30:35,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:30:35,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 04:30:35,646 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:30:35,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:30:35,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:30:35,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:30:35,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:30:35,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:30:35,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:30:35,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:30:35,649 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:30:35,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:30:35,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:30:35,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:30:35,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:30:35,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:30:35,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:30:35,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:30:35,652 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:30:35,653 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:30:35,653 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:30:35,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:30:35,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:30:35,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:30:35,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:30:35,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:30:35,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:30:35,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:30:35,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:30:35,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:30:35,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:30:35,657 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:30:35,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:30:35,657 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:30:35,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:30:35,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:30:35,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:30:35,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:30:35,660 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_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3056a4b69d64ad96b8ce8f2e45c980f4c3dd373f3ab0ec649937fe8cb85b92b [2021-11-19 04:30:36,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:30:36,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:30:36,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:30:36,182 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:30:36,189 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:30:36,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2021-11-19 04:30:36,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/262f9f7e2/7e924507db674c7aa9803381e454c43e/FLAGd511e135a [2021-11-19 04:30:36,964 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:30:36,964 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c [2021-11-19 04:30:36,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/262f9f7e2/7e924507db674c7aa9803381e454c43e/FLAGd511e135a [2021-11-19 04:30:37,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/data/262f9f7e2/7e924507db674c7aa9803381e454c43e [2021-11-19 04:30:37,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:30:37,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:30:37,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:30:37,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:30:37,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:30:37,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d854c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37, skipping insertion in model container [2021-11-19 04:30:37,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:30:37,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:30:37,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2021-11-19 04:30:37,636 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:30:37,663 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:30:37,789 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_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/sv-benchmarks/c/float-newlib/double_req_bl_0270a.c[5868,5881] [2021-11-19 04:30:37,790 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:30:37,811 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:30:37,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37 WrapperNode [2021-11-19 04:30:37,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:30:37,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:30:37,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:30:37,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:30:37,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,884 INFO L137 Inliner]: procedures = 20, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 285 [2021-11-19 04:30:37,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:30:37,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:30:37,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:30:37,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:30:37,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:37,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:30:37,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:30:37,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:30:37,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:30:37,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (1/1) ... [2021-11-19 04:30:38,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:30:38,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:30:38,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:30:38,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:30:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:30:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-19 04:30:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-19 04:30:38,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 04:30:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:30:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 04:30:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:30:38,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:30:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 04:30:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:30:38,228 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:30:38,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:30:56,436 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:30:56,445 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:30:56,446 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-19 04:30:56,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:30:56 BoogieIcfgContainer [2021-11-19 04:30:56,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:30:56,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:30:56,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:30:56,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:30:56,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:30:37" (1/3) ... [2021-11-19 04:30:56,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7ed9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:30:56, skipping insertion in model container [2021-11-19 04:30:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:30:37" (2/3) ... [2021-11-19 04:30:56,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7ed9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:30:56, skipping insertion in model container [2021-11-19 04:30:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:30:56" (3/3) ... [2021-11-19 04:30:56,459 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270a.c [2021-11-19 04:30:56,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:30:56,466 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:30:56,517 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:30:56,525 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:30:56,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:30:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 69 states have (on average 1.681159420289855) internal successors, (116), 70 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 04:30:56,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:30:56,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:30:56,550 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:30:56,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:30:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1035834224, now seen corresponding path program 1 times [2021-11-19 04:30:56,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:30:56,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155661384] [2021-11-19 04:30:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:30:56,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:30:56,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:30:56,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:30:56,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:30:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:30:57,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 04:30:57,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:30:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:30:57,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:30:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:30:57,909 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:30:57,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155661384] [2021-11-19 04:30:57,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155661384] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:30:57,911 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:30:57,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 04:30:57,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875454745] [2021-11-19 04:30:57,914 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:30:57,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:30:57,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:30:57,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:30:57,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:30:57,955 INFO L87 Difference]: Start difference. First operand has 71 states, 69 states have (on average 1.681159420289855) internal successors, (116), 70 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:30:57,985 INFO L93 Difference]: Finished difference Result 140 states and 230 transitions. [2021-11-19 04:30:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:30:57,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-19 04:30:57,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:30:58,000 INFO L225 Difference]: With dead ends: 140 [2021-11-19 04:30:58,000 INFO L226 Difference]: Without dead ends: 68 [2021-11-19 04:30:58,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:30:58,008 INFO L933 BasicCegarLoop]: 97 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, 97 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:30:58,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:30:58,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-19 04:30:58,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-19 04:30:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:58,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2021-11-19 04:30:58,055 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 10 [2021-11-19 04:30:58,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:30:58,056 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2021-11-19 04:30:58,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:30:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2021-11-19 04:30:58,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 04:30:58,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:30:58,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:30:58,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:30:58,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:30:58,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:30:58,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:30:58,278 INFO L85 PathProgramCache]: Analyzing trace with hash -744853926, now seen corresponding path program 1 times [2021-11-19 04:30:58,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:30:58,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309426475] [2021-11-19 04:30:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:30:58,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:30:58,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:30:58,282 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:30:58,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:31:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:03,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:31:03,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:05,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:31:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:07,099 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:31:07,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309426475] [2021-11-19 04:31:07,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309426475] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:31:07,101 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:31:07,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 04:31:07,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320696833] [2021-11-19 04:31:07,102 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:31:07,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:31:07,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:31:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:31:07,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:31:07,107 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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) [2021-11-19 04:31:09,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:31:11,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:31:12,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:31:16,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:31:17,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:31:17,690 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-11-19 04:31:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:31:17,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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 11 [2021-11-19 04:31:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:31:17,694 INFO L225 Difference]: With dead ends: 72 [2021-11-19 04:31:17,694 INFO L226 Difference]: Without dead ends: 68 [2021-11-19 04:31:17,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:31:17,697 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 2 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:31:17,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 486 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 3 Unknown, 17 Unchecked, 10.2s Time] [2021-11-19 04:31:17,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-19 04:31:17,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-19 04:31:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 67 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-11-19 04:31:17,711 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 11 [2021-11-19 04:31:17,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:31:17,712 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-11-19 04:31:17,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 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) [2021-11-19 04:31:17,712 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2021-11-19 04:31:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 04:31:17,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:31:17,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:31:17,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 04:31:17,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:31:17,927 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:31:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1843424530, now seen corresponding path program 1 times [2021-11-19 04:31:17,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:31:17,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553221177] [2021-11-19 04:31:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:17,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:31:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:31:17,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:31:17,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:31:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:18,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:31:18,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:19,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:31:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:21,814 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:31:21,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553221177] [2021-11-19 04:31:21,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553221177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:31:21,814 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:31:21,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 04:31:21,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439092276] [2021-11-19 04:31:21,815 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:31:21,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:31:21,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:31:21,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:31:21,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:31:21,817 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:25,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:31:28,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 04:31:28,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:31:28,782 INFO L93 Difference]: Finished difference Result 125 states and 170 transitions. [2021-11-19 04:31:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:31:28,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-19 04:31:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:31:28,787 INFO L225 Difference]: With dead ends: 125 [2021-11-19 04:31:28,788 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 04:31:28,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:31:28,791 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 82 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-19 04:31:28,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 598 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 2 Unknown, 12 Unchecked, 6.7s Time] [2021-11-19 04:31:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 04:31:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 65. [2021-11-19 04:31:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.375) internal successors, (88), 64 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 88 transitions. [2021-11-19 04:31:28,808 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 88 transitions. Word has length 12 [2021-11-19 04:31:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:31:28,808 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 88 transitions. [2021-11-19 04:31:28,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:28,809 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 88 transitions. [2021-11-19 04:31:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 04:31:28,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:31:28,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:31:28,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:29,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:31:29,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:31:29,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1629311917, now seen corresponding path program 1 times [2021-11-19 04:31:29,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:31:29,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625277853] [2021-11-19 04:31:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:29,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:31:29,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:31:29,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:31:29,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 04:31:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:29,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:31:29,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:31,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:31:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:33,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:31:33,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625277853] [2021-11-19 04:31:33,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625277853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:31:33,044 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:31:33,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 04:31:33,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369198086] [2021-11-19 04:31:33,046 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:31:33,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:31:33,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:31:33,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:31:33,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:31:33,049 INFO L87 Difference]: Start difference. First operand 65 states and 88 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:31:35,053 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2021-11-19 04:31:35,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:31:35,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-19 04:31:35,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:31:35,056 INFO L225 Difference]: With dead ends: 69 [2021-11-19 04:31:35,057 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 04:31:35,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:31:35,059 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 82 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 04:31:35,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 323 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 04:31:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 04:31:35,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 04:31:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.359375) internal successors, (87), 64 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions. [2021-11-19 04:31:35,072 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 12 [2021-11-19 04:31:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:31:35,072 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 87 transitions. [2021-11-19 04:31:35,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions. [2021-11-19 04:31:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 04:31:35,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:31:35,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:31:35,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:35,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:31:35,297 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:31:35,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:35,298 INFO L85 PathProgramCache]: Analyzing trace with hash -147521957, now seen corresponding path program 1 times [2021-11-19 04:31:35,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:31:35,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264291614] [2021-11-19 04:31:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:35,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:31:35,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:31:35,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:31:35,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 04:31:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:41,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:31:41,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:43,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:31:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:45,156 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:31:45,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264291614] [2021-11-19 04:31:45,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264291614] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:31:45,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:31:45,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 04:31:45,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461453548] [2021-11-19 04:31:45,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:31:45,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:31:45,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:31:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:31:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:31:45,160 INFO L87 Difference]: Start difference. First operand 65 states and 87 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:46,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:31:46,897 INFO L93 Difference]: Finished difference Result 121 states and 164 transitions. [2021-11-19 04:31:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:31:46,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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 23 [2021-11-19 04:31:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:31:46,901 INFO L225 Difference]: With dead ends: 121 [2021-11-19 04:31:46,902 INFO L226 Difference]: Without dead ends: 65 [2021-11-19 04:31:46,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:31:46,905 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 81 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 04:31:46,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 388 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 14 Unchecked, 1.4s Time] [2021-11-19 04:31:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-19 04:31:46,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-19 04:31:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2021-11-19 04:31:46,928 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 23 [2021-11-19 04:31:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:31:46,928 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2021-11-19 04:31:46,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:31:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2021-11-19 04:31:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-19 04:31:46,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:31:46,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:31:47,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 04:31:47,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:31:47,135 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:31:47,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash -265029239, now seen corresponding path program 1 times [2021-11-19 04:31:47,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:31:47,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180865246] [2021-11-19 04:31:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:47,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:31:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:31:47,138 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:31:47,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 04:31:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:54,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:31:54,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:58,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:58,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:32:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:32:07,767 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:32:07,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180865246] [2021-11-19 04:32:07,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180865246] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:32:07,768 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:32:07,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 04:32:07,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575828300] [2021-11-19 04:32:07,770 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:32:07,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:32:07,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:32:07,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:32:07,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:32:07,773 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:32:08,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:32:08,097 INFO L93 Difference]: Finished difference Result 65 states and 85 transitions. [2021-11-19 04:32:08,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:32:08,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-19 04:32:08,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:32:08,100 INFO L225 Difference]: With dead ends: 65 [2021-11-19 04:32:08,100 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 04:32:08,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:32:08,102 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 04:32:08,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 04:32:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 04:32:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 04:32:08,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:32:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 04:32:08,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-11-19 04:32:08,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:32:08,107 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:32:08,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:32:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:32:08,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 04:32:08,112 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:32:08,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:32:08,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:32:08,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 04:32:09,589 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 94) no Hoare annotation was computed. [2021-11-19 04:32:09,590 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 94) no Hoare annotation was computed. [2021-11-19 04:32:09,590 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 140) no Hoare annotation was computed. [2021-11-19 04:32:09,590 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 128 142) no Hoare annotation was computed. [2021-11-19 04:32:09,590 INFO L858 garLoopResultBuilder]: For program point L135-2(lines 135 140) no Hoare annotation was computed. [2021-11-19 04:32:09,591 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 41) no Hoare annotation was computed. [2021-11-19 04:32:09,591 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 69 79) the Hoare annotation is: false [2021-11-19 04:32:09,591 INFO L858 garLoopResultBuilder]: For program point L36-2(lines 36 41) no Hoare annotation was computed. [2021-11-19 04:32:09,592 INFO L858 garLoopResultBuilder]: For program point L69-3(lines 69 79) no Hoare annotation was computed. [2021-11-19 04:32:09,592 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 04:32:09,592 INFO L858 garLoopResultBuilder]: For program point L119-1(lines 119 124) no Hoare annotation was computed. [2021-11-19 04:32:09,592 INFO L854 garLoopResultBuilder]: At program point L119-2(lines 119 124) the Hoare annotation is: false [2021-11-19 04:32:09,593 INFO L858 garLoopResultBuilder]: For program point L119-3(lines 119 124) no Hoare annotation was computed. [2021-11-19 04:32:09,593 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 195) no Hoare annotation was computed. [2021-11-19 04:32:09,593 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2021-11-19 04:32:09,594 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-11-19 04:32:09,594 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 88) no Hoare annotation was computed. [2021-11-19 04:32:09,595 INFO L858 garLoopResultBuilder]: For program point L87-2(lines 87 88) no Hoare annotation was computed. [2021-11-19 04:32:09,595 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 75) no Hoare annotation was computed. [2021-11-19 04:32:09,595 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 75) no Hoare annotation was computed. [2021-11-19 04:32:09,596 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 171 175) no Hoare annotation was computed. [2021-11-19 04:32:09,596 INFO L854 garLoopResultBuilder]: At program point L171-2(lines 171 175) the Hoare annotation is: false [2021-11-19 04:32:09,596 INFO L858 garLoopResultBuilder]: For program point L171-3(lines 169 180) no Hoare annotation was computed. [2021-11-19 04:32:09,597 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2021-11-19 04:32:09,597 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2021-11-19 04:32:09,597 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 91) no Hoare annotation was computed. [2021-11-19 04:32:09,598 INFO L858 garLoopResultBuilder]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2021-11-19 04:32:09,598 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 222) no Hoare annotation was computed. [2021-11-19 04:32:09,598 INFO L858 garLoopResultBuilder]: For program point L206-2(lines 160 227) no Hoare annotation was computed. [2021-11-19 04:32:09,599 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 108) no Hoare annotation was computed. [2021-11-19 04:32:09,599 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 107 108) no Hoare annotation was computed. [2021-11-19 04:32:09,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 04:32:09,600 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 61) no Hoare annotation was computed. [2021-11-19 04:32:09,600 INFO L858 garLoopResultBuilder]: For program point L58-2(lines 58 61) no Hoare annotation was computed. [2021-11-19 04:32:09,601 INFO L854 garLoopResultBuilder]: At program point L141(lines 128 142) the Hoare annotation is: false [2021-11-19 04:32:09,601 INFO L854 garLoopResultBuilder]: At program point L125(lines 20 126) the Hoare annotation is: false [2021-11-19 04:32:09,601 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2021-11-19 04:32:09,601 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 31) the Hoare annotation is: false [2021-11-19 04:32:09,602 INFO L858 garLoopResultBuilder]: For program point L26-3(lines 20 126) no Hoare annotation was computed. [2021-11-19 04:32:09,602 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 244) no Hoare annotation was computed. [2021-11-19 04:32:09,602 INFO L858 garLoopResultBuilder]: For program point L242(line 242) no Hoare annotation was computed. [2021-11-19 04:32:09,603 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 55) no Hoare annotation was computed. [2021-11-19 04:32:09,603 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 55) no Hoare annotation was computed. [2021-11-19 04:32:09,603 INFO L854 garLoopResultBuilder]: At program point L226(lines 160 227) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asin_#res#1| |ULTIMATE.start_main_~x~0#1|) (= (_ +zero 11 53) |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start___ieee754_asin_~x#1| |ULTIMATE.start_main_~x~0#1|)) [2021-11-19 04:32:09,604 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 04:32:09,604 INFO L854 garLoopResultBuilder]: At program point L45-2(lines 45 49) the Hoare annotation is: false [2021-11-19 04:32:09,604 INFO L858 garLoopResultBuilder]: For program point L45-3(lines 45 49) no Hoare annotation was computed. [2021-11-19 04:32:09,605 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 211 216) no Hoare annotation was computed. [2021-11-19 04:32:09,605 INFO L854 garLoopResultBuilder]: At program point L211-2(lines 211 216) the Hoare annotation is: false [2021-11-19 04:32:09,605 INFO L858 garLoopResultBuilder]: For program point L211-3(lines 211 216) no Hoare annotation was computed. [2021-11-19 04:32:09,606 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2021-11-19 04:32:09,606 INFO L854 garLoopResultBuilder]: At program point L163-2(lines 163 167) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_asin~0) (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_asin~0) (= (_ +zero 11 53) |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___ieee754_asin_~x#1| |ULTIMATE.start_main_~x~0#1|)) [2021-11-19 04:32:09,606 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-11-19 04:32:09,607 INFO L858 garLoopResultBuilder]: For program point L163-3(lines 163 167) no Hoare annotation was computed. [2021-11-19 04:32:09,607 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: false [2021-11-19 04:32:09,607 INFO L861 garLoopResultBuilder]: At program point L246(lines 229 247) the Hoare annotation is: true [2021-11-19 04:32:09,608 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 195) no Hoare annotation was computed. [2021-11-19 04:32:09,608 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 180 195) no Hoare annotation was computed. [2021-11-19 04:32:09,608 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 04:32:09,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 242) no Hoare annotation was computed. [2021-11-19 04:32:09,609 INFO L858 garLoopResultBuilder]: For program point L181(lines 181 194) no Hoare annotation was computed. [2021-11-19 04:32:09,609 INFO L854 garLoopResultBuilder]: At program point L82-2(lines 82 98) the Hoare annotation is: false [2021-11-19 04:32:09,609 INFO L858 garLoopResultBuilder]: For program point L82-3(lines 20 126) no Hoare annotation was computed. [2021-11-19 04:32:09,610 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 113) no Hoare annotation was computed. [2021-11-19 04:32:09,610 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 183) no Hoare annotation was computed. [2021-11-19 04:32:09,610 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 117) no Hoare annotation was computed. [2021-11-19 04:32:09,610 INFO L858 garLoopResultBuilder]: For program point L116-2(lines 116 117) no Hoare annotation was computed. [2021-11-19 04:32:09,611 INFO L858 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2021-11-19 04:32:09,611 INFO L854 garLoopResultBuilder]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2021-11-19 04:32:09,611 INFO L858 garLoopResultBuilder]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2021-11-19 04:32:09,612 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 112) no Hoare annotation was computed. [2021-11-19 04:32:09,617 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 04:32:09,620 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:32:09,640 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 04:32:09,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 04:32:09,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:32:09 BoogieIcfgContainer [2021-11-19 04:32:09,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:32:09,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:32:09,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:32:09,646 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:32:09,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:30:56" (3/4) ... [2021-11-19 04:32:09,651 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 04:32:09,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-19 04:32:09,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-19 04:32:09,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 04:32:09,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 04:32:09,702 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == x && ~Pluszero~LONGDOUBLE() == x) && x == x [2021-11-19 04:32:09,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:32:09,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:32:09,738 INFO L158 Benchmark]: Toolchain (without parser) took 92491.61ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 35.3MB in the beginning and 38.4MB in the end (delta: -3.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,739 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:32:09,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.71ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 37.4MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.59ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 34.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,740 INFO L158 Benchmark]: Boogie Preprocessor took 106.02ms. Allocated memory is still 58.7MB. Free memory was 34.6MB in the beginning and 32.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,741 INFO L158 Benchmark]: RCFGBuilder took 18454.78ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 32.2MB in the beginning and 49.7MB in the end (delta: -17.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,742 INFO L158 Benchmark]: TraceAbstraction took 73194.01ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 44.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,742 INFO L158 Benchmark]: Witness Printer took 91.77ms. Allocated memory is still 81.8MB. Free memory was 44.7MB in the beginning and 38.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:32:09,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.71ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 37.4MB in the end (delta: -2.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.59ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 34.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.02ms. Allocated memory is still 58.7MB. Free memory was 34.6MB in the beginning and 32.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 18454.78ms. Allocated memory was 58.7MB in the beginning and 81.8MB in the end (delta: 23.1MB). Free memory was 32.2MB in the beginning and 49.7MB in the end (delta: -17.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 73194.01ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 44.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 91.77ms. Allocated memory is still 81.8MB. Free memory was 44.7MB in the beginning and 38.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 242]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 254 SdHoareTripleChecker+Valid, 19.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 1899 SdHoareTripleChecker+Invalid, 18.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 43 IncrementalHoareTripleChecker+Unchecked, 1394 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 505 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 13.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 53 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 42 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 19.5s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 15 QuantifiedInterpolants, 694 SizeOfPredicates, 29 NumberOfNonLiveVariables, 423 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: (\result == x && ~Pluszero~LONGDOUBLE() == x) && x == x - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant [2021-11-19 04:32:09,760 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 04:32:09,761 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_asin && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_asin) && ~Pluszero~LONGDOUBLE() == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == x - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-19 04:32:09,980 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-19 04:32:10,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07e3b9d7-8b72-48f1-bdd6-a04fbcf7c1f6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE