./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:29:38,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:29:38,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:29:38,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:29:38,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:29:38,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:29:38,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:29:38,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:29:38,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:29:38,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:29:38,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:29:38,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:29:38,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:29:38,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:29:38,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:29:38,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:29:38,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:29:38,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:29:38,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:29:38,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:29:38,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:29:38,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:29:38,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:29:38,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:29:38,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:29:38,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:29:38,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:29:38,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:29:38,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:29:38,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:29:38,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:29:38,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:29:38,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:29:38,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:29:38,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:29:38,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:29:38,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:29:38,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:29:38,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:29:38,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:29:38,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:29:38,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:29:38,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:29:38,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:29:38,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:29:38,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:29:38,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:29:38,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:29:38,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:29:38,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:29:38,254 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:29:38,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:29:38,256 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:29:38,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:29:38,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:29:38,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:29:38,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:29:38,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:29:38,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:29:38,257 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:29:38,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:29:38,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:29:38,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:29:38,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:29:38,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:29:38,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:29:38,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:38,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:29:38,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:29:38,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:29:38,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:29:38,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:29:38,260 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:29:38,260 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:29:38,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:29:38,260 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_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a [2022-10-17 10:29:38,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:29:38,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:29:38,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:29:38,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:29:38,559 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:29:38,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2022-10-17 10:29:38,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/74d05354e/47e24967cdec4f88b698e0de1c2e02cc/FLAG0c18b59d3 [2022-10-17 10:29:39,060 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:29:39,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2022-10-17 10:29:39,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/74d05354e/47e24967cdec4f88b698e0de1c2e02cc/FLAG0c18b59d3 [2022-10-17 10:29:39,444 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/74d05354e/47e24967cdec4f88b698e0de1c2e02cc [2022-10-17 10:29:39,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:29:39,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:29:39,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:39,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:29:39,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:29:39,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7070a713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39, skipping insertion in model container [2022-10-17 10:29:39,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:29:39,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:29:39,780 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_d67f8baf-8840-48f4-b799-5f99bb8de27b/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2022-10-17 10:29:39,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:39,795 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:29:39,852 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_d67f8baf-8840-48f4-b799-5f99bb8de27b/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2022-10-17 10:29:39,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:39,872 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:29:39,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39 WrapperNode [2022-10-17 10:29:39,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:39,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:39,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:29:39,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:29:39,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,950 INFO L138 Inliner]: procedures = 18, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 157 [2022-10-17 10:29:39,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:39,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:29:39,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:29:39,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:29:39,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,982 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:39,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:29:39,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:29:39,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:29:39,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:29:39,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (1/1) ... [2022-10-17 10:29:40,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:40,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:40,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:40,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:29:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:29:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:29:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:29:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 10:29:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:29:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-17 10:29:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:29:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:29:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:29:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:29:40,192 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:29:40,194 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:29:40,493 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:29:40,499 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:29:40,499 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 10:29:40,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:40 BoogieIcfgContainer [2022-10-17 10:29:40,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:29:40,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:29:40,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:29:40,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:29:40,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:29:39" (1/3) ... [2022-10-17 10:29:40,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6d50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:29:40, skipping insertion in model container [2022-10-17 10:29:40,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:39" (2/3) ... [2022-10-17 10:29:40,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6d50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:29:40, skipping insertion in model container [2022-10-17 10:29:40,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:40" (3/3) ... [2022-10-17 10:29:40,510 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2022-10-17 10:29:40,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:29:40,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:29:40,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:29:40,587 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@233f6f36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:29:40,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:29:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:29:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 10:29:40,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:29:40,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:29:40,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:29:40,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:40,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1030811467, now seen corresponding path program 1 times [2022-10-17 10:29:40,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:40,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217087559] [2022-10-17 10:29:40,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:40,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:29:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:29:40,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:29:40,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217087559] [2022-10-17 10:29:40,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217087559] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:29:40,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:29:40,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:29:40,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232326827] [2022-10-17 10:29:40,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:29:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:29:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:29:40,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:29:40,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:29:40,987 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:29:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:29:41,017 INFO L93 Difference]: Finished difference Result 64 states and 106 transitions. [2022-10-17 10:29:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:29:41,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-17 10:29:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:29:41,027 INFO L225 Difference]: With dead ends: 64 [2022-10-17 10:29:41,028 INFO L226 Difference]: Without dead ends: 30 [2022-10-17 10:29:41,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:29:41,035 INFO L413 NwaCegarLoop]: 45 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, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:29:41,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:29:41,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-17 10:29:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-17 10:29:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 29 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:29:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2022-10-17 10:29:41,069 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 10 [2022-10-17 10:29:41,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:29:41,070 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2022-10-17 10:29:41,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:29:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2022-10-17 10:29:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:29:41,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:29:41,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:29:41,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:29:41,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:29:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:29:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1304495730, now seen corresponding path program 1 times [2022-10-17 10:29:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:29:41,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065376506] [2022-10-17 10:29:41,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:29:41,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:29:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:41,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:29:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:29:41,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:29:41,198 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:29:41,199 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:29:41,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:29:41,205 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 10:29:41,208 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:29:41,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:29:41 BoogieIcfgContainer [2022-10-17 10:29:41,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:29:41,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:29:41,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:29:41,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:29:41,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:29:40" (3/4) ... [2022-10-17 10:29:41,253 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:29:41,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:29:41,255 INFO L158 Benchmark]: Toolchain (without parser) took 1805.79ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 64.2MB in the beginning and 97.0MB in the end (delta: -32.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:41,256 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:41,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.27ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 64.0MB in the beginning and 107.3MB in the end (delta: -43.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:29:41,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.83ms. Allocated memory is still 134.2MB. Free memory was 107.3MB in the beginning and 105.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:41,265 INFO L158 Benchmark]: Boogie Preprocessor took 36.55ms. Allocated memory is still 134.2MB. Free memory was 105.0MB in the beginning and 103.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:29:41,266 INFO L158 Benchmark]: RCFGBuilder took 512.53ms. Allocated memory is still 134.2MB. Free memory was 103.2MB in the beginning and 86.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 10:29:41,266 INFO L158 Benchmark]: TraceAbstraction took 739.79ms. Allocated memory is still 134.2MB. Free memory was 85.8MB in the beginning and 97.6MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:41,267 INFO L158 Benchmark]: Witness Printer took 6.67ms. Allocated memory is still 134.2MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:29:41,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.27ms. Allocated memory was 88.1MB in the beginning and 134.2MB in the end (delta: 46.1MB). Free memory was 64.0MB in the beginning and 107.3MB in the end (delta: -43.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.83ms. Allocated memory is still 134.2MB. Free memory was 107.3MB in the beginning and 105.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.55ms. Allocated memory is still 134.2MB. Free memory was 105.0MB in the beginning and 103.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.53ms. Allocated memory is still 134.2MB. Free memory was 103.2MB in the beginning and 86.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 739.79ms. Allocated memory is still 134.2MB. Free memory was 85.8MB in the beginning and 97.6MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.67ms. Allocated memory is still 134.2MB. Free memory is still 97.0MB. 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: 142]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 129. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L137] double x = 0.0 / 0.0; [L138] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=18014398509481993, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481993, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=18014398509481993, hx=6, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481993, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481993, hx=6, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481993, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=18014398509481993, hx=6, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481993, zero=0] [L138] RET, EXPR __ieee754_log(x) [L138] double res = __ieee754_log(x); [L141] CALL, EXPR isnan_double(res) [L129] return x != x; VAL [\old(x)=18014398509481992, \result=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481992, zero=0] [L141] RET, EXPR isnan_double(res) [L141] COND TRUE !isnan_double(res) [L142] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481992, two54_log=18014398509481984, x=18014398509481993, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 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, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 45 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, 45 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=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2022-10-17 10:29:41,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:29:43,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:29:43,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:29:43,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:29:43,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:29:43,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:29:43,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:29:43,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:29:43,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:29:43,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:29:43,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:29:43,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:29:43,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:29:43,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:29:43,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:29:43,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:29:43,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:29:43,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:29:43,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:29:43,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:29:43,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:29:43,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:29:43,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:29:43,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:29:43,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:29:43,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:29:43,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:29:43,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:29:43,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:29:43,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:29:43,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:29:43,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:29:43,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:29:43,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:29:43,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:29:43,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:29:43,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:29:43,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:29:43,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:29:43,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:29:43,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:29:43,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-10-17 10:29:43,932 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:29:43,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:29:43,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:29:43,934 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:29:43,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:29:43,935 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:29:43,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:29:43,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:29:43,937 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:29:43,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:29:43,938 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:29:43,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:29:43,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:29:43,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:29:43,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:29:43,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:29:43,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:29:43,939 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:29:43,940 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:29:43,940 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:29:43,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:29:43,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:29:43,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:29:43,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:29:43,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:29:43,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:29:43,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:43,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:29:43,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:29:43,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:29:43,942 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:29:43,943 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:29:43,943 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:29:43,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:29:43,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:29:43,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:29:43,944 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_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff79c740204f513a01c900350576ff8bf7bfaa86497cf43ba5460bcbb774895a [2022-10-17 10:29:44,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:29:44,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:29:44,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:29:44,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:29:44,357 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:29:44,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2022-10-17 10:29:44,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/aa6ba4716/bda3b3fb11664c9e8687a272faa64f46/FLAG8351f1a2b [2022-10-17 10:29:44,989 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:29:44,990 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2022-10-17 10:29:44,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/aa6ba4716/bda3b3fb11664c9e8687a272faa64f46/FLAG8351f1a2b [2022-10-17 10:29:45,348 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/data/aa6ba4716/bda3b3fb11664c9e8687a272faa64f46 [2022-10-17 10:29:45,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:29:45,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:29:45,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:45,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:29:45,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:29:45,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52677fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45, skipping insertion in model container [2022-10-17 10:29:45,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:29:45,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:29:45,680 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_d67f8baf-8840-48f4-b799-5f99bb8de27b/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2022-10-17 10:29:45,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:45,706 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:29:45,760 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_d67f8baf-8840-48f4-b799-5f99bb8de27b/sv-benchmarks/c/float-newlib/double_req_bl_0921.c[3679,3692] [2022-10-17 10:29:45,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:29:45,795 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:29:45,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45 WrapperNode [2022-10-17 10:29:45,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:29:45,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:45,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:29:45,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:29:45,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,867 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2022-10-17 10:29:45,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:29:45,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:29:45,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:29:45,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:29:45,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:29:45,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:29:45,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:29:45,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:29:45,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (1/1) ... [2022-10-17 10:29:45,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:29:45,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:29:45,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:29:46,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:29:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:29:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-10-17 10:29:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-10-17 10:29:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:29:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:29:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:29:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:29:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:29:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:29:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:29:46,182 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:29:46,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:30:10,623 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:30:10,628 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:30:10,629 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 10:30:10,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:10 BoogieIcfgContainer [2022-10-17 10:30:10,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:30:10,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:30:10,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:30:10,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:30:10,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:29:45" (1/3) ... [2022-10-17 10:30:10,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f68375c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:10, skipping insertion in model container [2022-10-17 10:30:10,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:29:45" (2/3) ... [2022-10-17 10:30:10,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f68375c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:30:10, skipping insertion in model container [2022-10-17 10:30:10,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:30:10" (3/3) ... [2022-10-17 10:30:10,638 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2022-10-17 10:30:10,656 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:30:10,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:30:10,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:30:10,727 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@cefbd16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:30:10,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:30:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 10:30:10,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:10,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:10,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:30:10,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2022-10-17 10:30:10,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:30:10,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706097639] [2022-10-17 10:30:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:10,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:30:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:30:10,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:30:10,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:30:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:11,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:30:11,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:11,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:11,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:30:11,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706097639] [2022-10-17 10:30:11,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706097639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:11,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:11,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:30:11,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74828090] [2022-10-17 10:30:11,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:11,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:30:11,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:30:11,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:30:11,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:30:11,936 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 28 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:11,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:11,959 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2022-10-17 10:30:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:30:11,961 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-17 10:30:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:11,970 INFO L225 Difference]: With dead ends: 56 [2022-10-17 10:30:11,970 INFO L226 Difference]: Without dead ends: 26 [2022-10-17 10:30:11,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:30:11,978 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:11,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:30:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-17 10:30:12,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-17 10:30:12,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2022-10-17 10:30:12,022 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2022-10-17 10:30:12,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:12,022 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-10-17 10:30:12,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:12,023 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-10-17 10:30:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:30:12,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:12,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:12,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:12,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:30:12,248 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:30:12,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:12,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2022-10-17 10:30:12,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:30:12,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350538247] [2022-10-17 10:30:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:12,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:30:12,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:30:12,252 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:30:12,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:30:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:13,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 10:30:13,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:13,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:13,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:30:13,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350538247] [2022-10-17 10:30:13,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350538247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:13,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:13,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:30:13,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157088049] [2022-10-17 10:30:13,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:13,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:30:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:30:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:30:13,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:13,895 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:13,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:30:13,902 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2022-10-17 10:30:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:30:13,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-17 10:30:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:30:13,903 INFO L225 Difference]: With dead ends: 31 [2022-10-17 10:30:13,903 INFO L226 Difference]: Without dead ends: 26 [2022-10-17 10:30:13,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:30:13,905 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:30:13,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-10-17 10:30:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-17 10:30:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-17 10:30:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2022-10-17 10:30:13,918 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2022-10-17 10:30:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:30:13,919 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2022-10-17 10:30:13,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-10-17 10:30:13,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:30:13,922 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:30:13,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:30:13,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:30:14,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:30:14,145 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:30:14,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:30:14,146 INFO L85 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2022-10-17 10:30:14,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:30:14,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014909581] [2022-10-17 10:30:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:30:14,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:30:14,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:30:14,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:30:14,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67f8baf-8840-48f4-b799-5f99bb8de27b/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 10:30:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:30:14,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 10:30:14,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:30:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:30:15,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:30:15,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:30:15,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014909581] [2022-10-17 10:30:15,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014909581] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:30:15,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:30:15,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:30:15,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901506275] [2022-10-17 10:30:15,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:30:15,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:30:15,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:30:15,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:30:15,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:30:15,477 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:30:18,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []