./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8 --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 f5978e6794574f24e5282dc6c0759b72c8b7ad9dd0acf1cc3c9d6f2352537904 --- 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-2329fc7 [2022-12-13 11:48:20,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:48:20,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:48:20,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:48:20,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:48:20,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:48:20,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:48:20,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:48:20,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:48:20,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:48:20,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:48:20,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:48:20,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:48:20,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:48:20,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:48:20,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:48:20,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:48:20,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:48:20,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:48:20,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:48:20,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:48:20,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:48:20,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:48:20,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:48:20,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:48:20,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:48:20,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:48:20,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:48:20,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:48:20,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:48:20,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:48:20,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:48:20,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:48:20,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:48:20,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:48:20,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:48:20,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:48:20,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:48:20,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:48:20,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:48:20,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:48:20,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:48:20,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:48:20,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:48:20,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:48:20,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:48:20,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:48:20,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:48:20,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:48:20,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:48:20,497 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:48:20,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:48:20,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:48:20,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:48:20,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:48:20,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:48:20,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:48:20,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:48:20,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:48:20,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:48:20,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:48:20,506 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:48:20,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:48:20,507 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:48:20,507 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5978e6794574f24e5282dc6c0759b72c8b7ad9dd0acf1cc3c9d6f2352537904 [2022-12-13 11:48:20,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:48:20,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:48:20,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:48:20,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:48:20,726 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:48:20,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2022-12-13 11:48:23,393 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:48:23,560 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:48:23,561 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2022-12-13 11:48:23,567 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data/d6618d5aa/622c5b7b0f1445ae962fc7cc842f4ed2/FLAG1b2ba7714 [2022-12-13 11:48:23,580 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data/d6618d5aa/622c5b7b0f1445ae962fc7cc842f4ed2 [2022-12-13 11:48:23,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:48:23,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:48:23,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:48:23,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:48:23,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:48:23,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d0abbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23, skipping insertion in model container [2022-12-13 11:48:23,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:48:23,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:48:23,772 WARN L237 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_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2022-12-13 11:48:23,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:48:23,785 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:48:23,805 WARN L237 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_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2022-12-13 11:48:23,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:48:23,817 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:48:23,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23 WrapperNode [2022-12-13 11:48:23,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:48:23,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:48:23,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:48:23,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:48:23,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,845 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2022-12-13 11:48:23,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:48:23,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:48:23,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:48:23,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:48:23,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:48:23,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:48:23,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:48:23,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:48:23,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (1/1) ... [2022-12-13 11:48:23,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:48:23,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:48:23,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:48:23,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:48:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:48:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:48:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:48:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2022-12-13 11:48:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2022-12-13 11:48:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-13 11:48:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:48:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:48:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:48:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:48:23,989 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:48:23,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:48:24,127 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:48:24,132 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:48:24,132 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 11:48:24,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:48:24 BoogieIcfgContainer [2022-12-13 11:48:24,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:48:24,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:48:24,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:48:24,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:48:24,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:48:23" (1/3) ... [2022-12-13 11:48:24,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671efaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:48:24, skipping insertion in model container [2022-12-13 11:48:24,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:23" (2/3) ... [2022-12-13 11:48:24,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671efaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:48:24, skipping insertion in model container [2022-12-13 11:48:24,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:48:24" (3/3) ... [2022-12-13 11:48:24,143 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2022-12-13 11:48:24,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:48:24,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:48:24,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:48:24,198 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;@1e6efcd1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:48:24,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:48:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 25 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 11:48:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 11:48:24,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:24,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:24,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:24,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash -160972861, now seen corresponding path program 1 times [2022-12-13 11:48:24,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:24,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966765691] [2022-12-13 11:48:24,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:24,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:24,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:24,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966765691] [2022-12-13 11:48:24,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966765691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:24,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:24,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:48:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115684300] [2022-12-13 11:48:24,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:24,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:48:24,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:24,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:48:24,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:48:24,420 INFO L87 Difference]: Start difference. First operand has 29 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 25 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:24,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:24,459 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2022-12-13 11:48:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:48:24,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-13 11:48:24,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:24,467 INFO L225 Difference]: With dead ends: 55 [2022-12-13 11:48:24,467 INFO L226 Difference]: Without dead ends: 26 [2022-12-13 11:48:24,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:48:24,472 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:24,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 65 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-13 11:48:24,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-13 11:48:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 11:48:24,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-12-13 11:48:24,498 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 14 [2022-12-13 11:48:24,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:24,499 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-12-13 11:48:24,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-12-13 11:48:24,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 11:48:24,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:24,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:24,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:48:24,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:24,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:24,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1856750492, now seen corresponding path program 1 times [2022-12-13 11:48:24,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:24,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791508414] [2022-12-13 11:48:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:24,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:24,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791508414] [2022-12-13 11:48:24,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791508414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:24,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:24,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:48:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568103004] [2022-12-13 11:48:24,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:24,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:48:24,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:24,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:48:24,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:24,681 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:24,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:24,720 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2022-12-13 11:48:24,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:48:24,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-13 11:48:24,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:24,723 INFO L225 Difference]: With dead ends: 39 [2022-12-13 11:48:24,723 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 11:48:24,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:24,725 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:24,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 106 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 11:48:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-13 11:48:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 11:48:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2022-12-13 11:48:24,732 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 15 [2022-12-13 11:48:24,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:24,732 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2022-12-13 11:48:24,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2022-12-13 11:48:24,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 11:48:24,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:24,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:24,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:48:24,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:24,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:24,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1502968870, now seen corresponding path program 1 times [2022-12-13 11:48:24,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:24,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628361146] [2022-12-13 11:48:24,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:24,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:24,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:24,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628361146] [2022-12-13 11:48:24,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628361146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:24,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:24,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:48:24,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778414845] [2022-12-13 11:48:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:24,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:48:24,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:48:24,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:24,857 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:24,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:24,892 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-12-13 11:48:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:48:24,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-13 11:48:24,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:24,894 INFO L225 Difference]: With dead ends: 43 [2022-12-13 11:48:24,894 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 11:48:24,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:24,895 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:24,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 122 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:24,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 11:48:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2022-12-13 11:48:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 11:48:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2022-12-13 11:48:24,903 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 16 [2022-12-13 11:48:24,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:24,903 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2022-12-13 11:48:24,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:24,904 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2022-12-13 11:48:24,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 11:48:24,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:24,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:24,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:48:24,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:24,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash -359796568, now seen corresponding path program 1 times [2022-12-13 11:48:24,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:24,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767294429] [2022-12-13 11:48:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:24,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:25,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:25,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767294429] [2022-12-13 11:48:25,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767294429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:25,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:25,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:48:25,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809312855] [2022-12-13 11:48:25,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:25,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:48:25,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:25,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:48:25,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:25,015 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:25,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:25,047 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-12-13 11:48:25,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:48:25,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 11:48:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:25,049 INFO L225 Difference]: With dead ends: 43 [2022-12-13 11:48:25,049 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 11:48:25,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:25,050 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:25,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 122 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:25,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 11:48:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2022-12-13 11:48:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 11:48:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2022-12-13 11:48:25,057 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 17 [2022-12-13 11:48:25,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:25,057 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2022-12-13 11:48:25,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2022-12-13 11:48:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 11:48:25,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:25,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:25,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:48:25,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:25,060 INFO L85 PathProgramCache]: Analyzing trace with hash -910833558, now seen corresponding path program 1 times [2022-12-13 11:48:25,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:25,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842781358] [2022-12-13 11:48:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:25,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:48:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:25,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:48:25,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842781358] [2022-12-13 11:48:25,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842781358] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:25,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:25,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:48:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788798027] [2022-12-13 11:48:25,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:25,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:48:25,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:48:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:48:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:25,158 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:25,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:25,188 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-12-13 11:48:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:48:25,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-13 11:48:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:25,189 INFO L225 Difference]: With dead ends: 43 [2022-12-13 11:48:25,189 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 11:48:25,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:25,191 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:25,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 122 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 11:48:25,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2022-12-13 11:48:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 11:48:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2022-12-13 11:48:25,195 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 18 [2022-12-13 11:48:25,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:25,195 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2022-12-13 11:48:25,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:25,195 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2022-12-13 11:48:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 11:48:25,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:25,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:25,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:48:25,196 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1576679275, now seen corresponding path program 1 times [2022-12-13 11:48:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:48:25,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607721331] [2022-12-13 11:48:25,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:25,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:48:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:48:25,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:48:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:48:25,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:48:25,237 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:48:25,238 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:48:25,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:48:25,243 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 11:48:25,246 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:48:25,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:48:25 BoogieIcfgContainer [2022-12-13 11:48:25,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:48:25,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:48:25,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:48:25,267 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:48:25,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:48:24" (3/4) ... [2022-12-13 11:48:25,271 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:48:25,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:48:25,271 INFO L158 Benchmark]: Toolchain (without parser) took 1687.54ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 91.2MB in the beginning and 129.9MB in the end (delta: -38.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:25,272 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:48:25,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.28ms. Allocated memory is still 130.0MB. Free memory was 91.2MB in the beginning and 80.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:48:25,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.76ms. Allocated memory is still 130.0MB. Free memory was 80.0MB in the beginning and 78.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:48:25,272 INFO L158 Benchmark]: Boogie Preprocessor took 23.97ms. Allocated memory is still 130.0MB. Free memory was 78.4MB in the beginning and 77.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:25,273 INFO L158 Benchmark]: RCFGBuilder took 263.35ms. Allocated memory is still 130.0MB. Free memory was 77.1MB in the beginning and 64.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:48:25,273 INFO L158 Benchmark]: TraceAbstraction took 1130.52ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 63.6MB in the beginning and 130.9MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:48:25,273 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 172.0MB. Free memory was 130.9MB in the beginning and 129.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:25,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.28ms. Allocated memory is still 130.0MB. Free memory was 91.2MB in the beginning and 80.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.76ms. Allocated memory is still 130.0MB. Free memory was 80.0MB in the beginning and 78.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.97ms. Allocated memory is still 130.0MB. Free memory was 78.4MB in the beginning and 77.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.35ms. Allocated memory is still 130.0MB. Free memory was 77.1MB in the beginning and 64.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1130.52ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 63.6MB in the beginning and 130.9MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 172.0MB. Free memory was 130.9MB in the beginning and 129.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 77. Possible FailurePath: [L76] double x = 0.0; [L77] double y = -0.0; [L78] CALL, EXPR fmin_double(x, y) [L48] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L21] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=0, lsw=4294967297, msw=4293918721, x=0] [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; VAL [\old(x)=0, \result=0, lsw=4294967297, msw=4293918721, x=0] [L48] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=4294967304, __fpclassify_double(x)=0, x=0, y=4294967304] [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; VAL [\old(x)=0, \old(y)=4294967304, \result=4294967304, x=0, y=4294967304] [L78] RET, EXPR fmin_double(x, y) [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=4294967304, res == -0.0 && __signbit_double(res) == 1=0, x=0, y=4294967304] [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L82] reach_error() VAL [res=4294967304, x=0, y=4294967304] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 537 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 367 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 170 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, InterpolantAutomatonStates: 23, 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 [2022-12-13 11:48:25,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8 --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 f5978e6794574f24e5282dc6c0759b72c8b7ad9dd0acf1cc3c9d6f2352537904 --- 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-2329fc7 [2022-12-13 11:48:26,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:48:26,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:48:26,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:48:26,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:48:26,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:48:26,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:48:26,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:48:26,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:48:26,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:48:26,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:48:26,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:48:26,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:48:26,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:48:26,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:48:26,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:48:26,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:48:26,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:48:26,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:48:26,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:48:26,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:48:26,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:48:26,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:48:26,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:48:26,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:48:26,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:48:26,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:48:26,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:48:26,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:48:26,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:48:26,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:48:26,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:48:26,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:48:26,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:48:26,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:48:26,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:48:27,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:48:27,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:48:27,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:48:27,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:48:27,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:48:27,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 11:48:27,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:48:27,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:48:27,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:48:27,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:48:27,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:48:27,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:48:27,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:48:27,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:48:27,029 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:48:27,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:48:27,029 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:48:27,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:48:27,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:48:27,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:48:27,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:48:27,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:48:27,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:48:27,031 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:48:27,031 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:48:27,031 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:48:27,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:48:27,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:48:27,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:48:27,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:48:27,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:48:27,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:48:27,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:48:27,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:48:27,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:48:27,033 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:48:27,034 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:48:27,034 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5978e6794574f24e5282dc6c0759b72c8b7ad9dd0acf1cc3c9d6f2352537904 [2022-12-13 11:48:27,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:48:27,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:48:27,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:48:27,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:48:27,271 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:48:27,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2022-12-13 11:48:29,903 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:48:30,042 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:48:30,042 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2022-12-13 11:48:30,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data/f011f186b/009fe41a6a29426d8f92e179214f61cd/FLAGe3e095008 [2022-12-13 11:48:30,062 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/data/f011f186b/009fe41a6a29426d8f92e179214f61cd [2022-12-13 11:48:30,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:48:30,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:48:30,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:48:30,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:48:30,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:48:30,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff31d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30, skipping insertion in model container [2022-12-13 11:48:30,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:48:30,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:48:30,257 WARN L237 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_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2022-12-13 11:48:30,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:48:30,274 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:48:30,296 WARN L237 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_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c[1957,1970] [2022-12-13 11:48:30,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:48:30,311 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:48:30,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30 WrapperNode [2022-12-13 11:48:30,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:48:30,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:48:30,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:48:30,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:48:30,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,344 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 11:48:30,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:48:30,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:48:30,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:48:30,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:48:30,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,372 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:48:30,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:48:30,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:48:30,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:48:30,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (1/1) ... [2022-12-13 11:48:30,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:48:30,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:48:30,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:48:30,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:48:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:48:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-12-13 11:48:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:48:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:48:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2022-12-13 11:48:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2022-12-13 11:48:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 11:48:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:48:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:48:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:48:30,498 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:48:30,499 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:48:30,666 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:48:30,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:48:30,672 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 11:48:30,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:48:30 BoogieIcfgContainer [2022-12-13 11:48:30,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:48:30,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:48:30,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:48:30,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:48:30,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:48:30" (1/3) ... [2022-12-13 11:48:30,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4481da76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:48:30, skipping insertion in model container [2022-12-13 11:48:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:48:30" (2/3) ... [2022-12-13 11:48:30,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4481da76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:48:30, skipping insertion in model container [2022-12-13 11:48:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:48:30" (3/3) ... [2022-12-13 11:48:30,682 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2022-12-13 11:48:30,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:48:30,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:48:30,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:48:30,745 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;@50043004, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:48:30,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:48:30,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 11:48:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 11:48:30,754 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:30,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:30,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:30,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:30,758 INFO L85 PathProgramCache]: Analyzing trace with hash 624090286, now seen corresponding path program 1 times [2022-12-13 11:48:30,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:30,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314781484] [2022-12-13 11:48:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:30,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:30,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:30,769 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:30,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 11:48:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:30,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:48:30,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:30,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:30,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:30,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314781484] [2022-12-13 11:48:30,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314781484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:30,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:30,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:48:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653659402] [2022-12-13 11:48:30,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:30,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:48:30,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:30,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:48:30,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:48:30,899 INFO L87 Difference]: Start difference. First operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:30,920 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2022-12-13 11:48:30,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:48:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-13 11:48:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:30,929 INFO L225 Difference]: With dead ends: 51 [2022-12-13 11:48:30,929 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 11:48:30,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:48:30,936 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2022-12-13 11:48:30,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:30,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 11:48:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 11:48:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 11:48:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2022-12-13 11:48:30,972 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 13 [2022-12-13 11:48:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:30,972 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-12-13 11:48:30,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-12-13 11:48:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 11:48:30,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:30,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:30,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:48:31,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:31,176 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:31,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:31,180 INFO L85 PathProgramCache]: Analyzing trace with hash 181002929, now seen corresponding path program 1 times [2022-12-13 11:48:31,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:31,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023997227] [2022-12-13 11:48:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:31,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:31,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:31,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:31,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 11:48:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:31,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:48:31,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:31,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:31,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:31,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023997227] [2022-12-13 11:48:31,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023997227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:31,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:31,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:48:31,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486677924] [2022-12-13 11:48:31,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:31,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:48:31,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:31,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:48:31,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:31,438 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:31,568 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2022-12-13 11:48:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:48:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-13 11:48:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:31,570 INFO L225 Difference]: With dead ends: 36 [2022-12-13 11:48:31,570 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 11:48:31,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:31,571 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:31,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:48:31,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 11:48:31,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-13 11:48:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 11:48:31,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-12-13 11:48:31,577 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 14 [2022-12-13 11:48:31,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:31,577 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-12-13 11:48:31,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-12-13 11:48:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 11:48:31,578 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:31,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:31,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-13 11:48:31,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:31,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:31,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash -943857557, now seen corresponding path program 1 times [2022-12-13 11:48:31,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:31,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797083297] [2022-12-13 11:48:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:31,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:31,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:31,787 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:31,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 11:48:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:31,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 11:48:31,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:32,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:32,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:32,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:32,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797083297] [2022-12-13 11:48:32,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797083297] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:32,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:32,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:48:32,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887622922] [2022-12-13 11:48:32,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:32,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:48:32,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:48:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:48:32,086 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:32,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:32,349 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2022-12-13 11:48:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:48:32,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-13 11:48:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:32,351 INFO L225 Difference]: With dead ends: 52 [2022-12-13 11:48:32,351 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 11:48:32,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:48:32,353 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:32,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 66 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:48:32,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 11:48:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-13 11:48:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 11:48:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2022-12-13 11:48:32,359 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 15 [2022-12-13 11:48:32,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:32,359 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-12-13 11:48:32,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-12-13 11:48:32,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 11:48:32,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:32,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:32,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 11:48:32,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:32,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:32,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1221479789, now seen corresponding path program 1 times [2022-12-13 11:48:32,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:32,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333891985] [2022-12-13 11:48:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:32,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:32,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:32,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:32,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 11:48:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:32,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:48:32,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:32,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:32,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:32,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333891985] [2022-12-13 11:48:32,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333891985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:32,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:32,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:48:32,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226630880] [2022-12-13 11:48:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:32,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:48:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:32,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:48:32,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:32,765 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:32,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:32,967 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-12-13 11:48:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:48:32,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-13 11:48:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:32,968 INFO L225 Difference]: With dead ends: 41 [2022-12-13 11:48:32,968 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 11:48:32,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:32,969 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:32,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:48:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 11:48:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-12-13 11:48:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 11:48:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2022-12-13 11:48:32,973 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 16 [2022-12-13 11:48:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:32,973 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-12-13 11:48:32,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-12-13 11:48:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 11:48:32,974 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:32,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:32,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-13 11:48:33,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:33,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:33,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:33,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1991232473, now seen corresponding path program 1 times [2022-12-13 11:48:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:33,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820362465] [2022-12-13 11:48:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:33,181 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:33,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:33,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:33,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 11:48:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:33,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 11:48:33,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:33,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:48:33,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:33,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:33,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820362465] [2022-12-13 11:48:33,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820362465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:33,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:33,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:48:33,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398950918] [2022-12-13 11:48:33,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:33,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:48:33,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:33,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:48:33,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:48:33,374 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:33,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:33,802 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2022-12-13 11:48:33,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:48:33,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 11:48:33,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:33,803 INFO L225 Difference]: With dead ends: 53 [2022-12-13 11:48:33,803 INFO L226 Difference]: Without dead ends: 28 [2022-12-13 11:48:33,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:48:33,804 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:33,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 62 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:48:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-13 11:48:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-12-13 11:48:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 11:48:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-12-13 11:48:33,807 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2022-12-13 11:48:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:33,807 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-12-13 11:48:33,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 11:48:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-12-13 11:48:33,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 11:48:33,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:33,808 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:33,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 11:48:34,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:34,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:34,010 INFO L85 PathProgramCache]: Analyzing trace with hash -941704498, now seen corresponding path program 1 times [2022-12-13 11:48:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:34,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941712285] [2022-12-13 11:48:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:34,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:34,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:34,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:34,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 11:48:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:34,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:48:34,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 11:48:34,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:34,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:34,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941712285] [2022-12-13 11:48:34,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941712285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:34,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:34,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:48:34,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802729511] [2022-12-13 11:48:34,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:34,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:48:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:34,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:48:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:34,097 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:34,168 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2022-12-13 11:48:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:48:34,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-12-13 11:48:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:34,170 INFO L225 Difference]: With dead ends: 38 [2022-12-13 11:48:34,170 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 11:48:34,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:34,171 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:34,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:48:34,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 11:48:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-13 11:48:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 11:48:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-12-13 11:48:34,174 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 22 [2022-12-13 11:48:34,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:34,174 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-12-13 11:48:34,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:34,175 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-12-13 11:48:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 11:48:34,176 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:34,176 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:34,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 11:48:34,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:34,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:34,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:34,377 INFO L85 PathProgramCache]: Analyzing trace with hash -939857456, now seen corresponding path program 1 times [2022-12-13 11:48:34,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:34,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417259743] [2022-12-13 11:48:34,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:34,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:34,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:34,378 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:34,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 11:48:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:34,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 11:48:34,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 11:48:34,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:34,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:34,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417259743] [2022-12-13 11:48:34,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417259743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:34,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:34,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:48:34,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665556387] [2022-12-13 11:48:34,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:34,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:48:34,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:34,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:48:34,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:48:34,496 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:34,563 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-12-13 11:48:34,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:48:34,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-12-13 11:48:34,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:34,564 INFO L225 Difference]: With dead ends: 41 [2022-12-13 11:48:34,565 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 11:48:34,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:48:34,565 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 34 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:34,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 80 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 11:48:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2022-12-13 11:48:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 11:48:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-12-13 11:48:34,569 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 22 [2022-12-13 11:48:34,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:34,569 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-12-13 11:48:34,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-12-13 11:48:34,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 11:48:34,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:34,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:34,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 11:48:34,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:34,771 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1022935030, now seen corresponding path program 1 times [2022-12-13 11:48:34,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:34,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54700195] [2022-12-13 11:48:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:34,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:34,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:34,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:34,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 11:48:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:34,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 11:48:34,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:34,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:48:34,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:34,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:34,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54700195] [2022-12-13 11:48:34,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54700195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:34,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:34,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:48:34,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320261801] [2022-12-13 11:48:34,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:34,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:48:34,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:34,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:48:34,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:48:34,976 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:35,262 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2022-12-13 11:48:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:48:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-12-13 11:48:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:35,264 INFO L225 Difference]: With dead ends: 45 [2022-12-13 11:48:35,264 INFO L226 Difference]: Without dead ends: 31 [2022-12-13 11:48:35,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:48:35,264 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 30 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:35,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 66 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:48:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-13 11:48:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-13 11:48:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 11:48:35,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-12-13 11:48:35,267 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 23 [2022-12-13 11:48:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:35,267 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-12-13 11:48:35,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-12-13 11:48:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 11:48:35,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:35,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:35,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-12-13 11:48:35,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:35,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash 178525002, now seen corresponding path program 1 times [2022-12-13 11:48:35,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:35,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449261421] [2022-12-13 11:48:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:35,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:35,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:35,475 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:35,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 11:48:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:35,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:48:35,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 11:48:35,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:35,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:35,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449261421] [2022-12-13 11:48:35,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449261421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:35,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:35,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:48:35,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75859637] [2022-12-13 11:48:35,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:35,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:48:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:35,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:48:35,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:35,607 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:35,652 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-12-13 11:48:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:48:35,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-12-13 11:48:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:35,653 INFO L225 Difference]: With dead ends: 41 [2022-12-13 11:48:35,653 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 11:48:35,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:48:35,654 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:35,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 11:48:35,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-12-13 11:48:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 11:48:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-12-13 11:48:35,659 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 24 [2022-12-13 11:48:35,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:35,659 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-12-13 11:48:35,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:35,660 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-12-13 11:48:35,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 11:48:35,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:35,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:35,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 11:48:35,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:35,862 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:35,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1847075342, now seen corresponding path program 1 times [2022-12-13 11:48:35,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:35,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242852600] [2022-12-13 11:48:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:35,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:35,870 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:35,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 11:48:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:35,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 11:48:35,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:48:36,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:36,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:36,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242852600] [2022-12-13 11:48:36,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242852600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:36,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:36,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:48:36,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498818540] [2022-12-13 11:48:36,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:36,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:48:36,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:36,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:48:36,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:48:36,098 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:36,644 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-12-13 11:48:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:48:36,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-13 11:48:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:36,645 INFO L225 Difference]: With dead ends: 38 [2022-12-13 11:48:36,645 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 11:48:36,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:48:36,646 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:36,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 58 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:48:36,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 11:48:36,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 11:48:36,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 11:48:36,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-12-13 11:48:36,649 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 25 [2022-12-13 11:48:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:36,649 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-12-13 11:48:36,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-12-13 11:48:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 11:48:36,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:48:36,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:36,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-12-13 11:48:36,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:36,853 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:48:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:48:36,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2027753189, now seen corresponding path program 1 times [2022-12-13 11:48:36,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:48:36,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752825999] [2022-12-13 11:48:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:48:36,855 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:36,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:48:36,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:48:36,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 11:48:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:48:36,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 11:48:36,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:48:37,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 11:48:37,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:48:37,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:48:37,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752825999] [2022-12-13 11:48:37,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752825999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:48:37,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:48:37,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:48:37,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604421668] [2022-12-13 11:48:37,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:48:37,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:48:37,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:48:37,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:48:37,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:48:37,107 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:48:37,237 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-12-13 11:48:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:48:37,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-12-13 11:48:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:48:37,238 INFO L225 Difference]: With dead ends: 23 [2022-12-13 11:48:37,239 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 11:48:37,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:48:37,240 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:48:37,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 101 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:48:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 11:48:37,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 11:48:37,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:48:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 11:48:37,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2022-12-13 11:48:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:48:37,241 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:48:37,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 11:48:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 11:48:37,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 11:48:37,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:48:37,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 11:48:37,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:48:37,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 11:48:37,695 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 44) no Hoare annotation was computed. [2022-12-13 11:48:37,695 INFO L899 garLoopResultBuilder]: For program point __fpclassify_doubleFINAL(lines 20 45) no Hoare annotation was computed. [2022-12-13 11:48:37,695 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 23 28) no Hoare annotation was computed. [2022-12-13 11:48:37,695 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 28) the Hoare annotation is: (= |__fpclassify_double_#in~x| __fpclassify_double_~x) [2022-12-13 11:48:37,695 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 20 45) no Hoare annotation was computed. [2022-12-13 11:48:37,695 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 20 45) the Hoare annotation is: true [2022-12-13 11:48:37,695 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 44) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point __fpclassify_doubleEXIT(lines 20 45) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L895 garLoopResultBuilder]: At program point fmin_double_returnLabel#1(lines 47 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_fmin_double_~x#1| (_ +zero 11 53)) (= |ULTIMATE.start_fmin_double_#res#1| .cse0) (= |ULTIMATE.start_fmin_double_~y#1| .cse0))) [2022-12-13 11:48:37,696 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (and (= |ULTIMATE.start_fmin_double_~x#1| (_ +zero 11 53)) (= |ULTIMATE.start_fmin_double_~y#1| (fp.neg (_ +zero 11 53)))) [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L50-1(lines 50 51) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (and (= |ULTIMATE.start_fmin_double_~x#1| (_ +zero 11 53)) (= |ULTIMATE.start_fmin_double_~y#1| (fp.neg (_ +zero 11 53)))) [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 49) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 68 87) the Hoare annotation is: true [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2022-12-13 11:48:37,696 INFO L895 garLoopResultBuilder]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_fmin_double_~x#1| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short11#1| (= .cse0 |ULTIMATE.start___signbit_double_~x#1|) (= |ULTIMATE.start_fmin_double_#res#1| .cse0) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= |ULTIMATE.start_fmin_double_~y#1| .cse0))) [2022-12-13 11:48:37,696 INFO L899 garLoopResultBuilder]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2022-12-13 11:48:37,697 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2022-12-13 11:48:37,697 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-12-13 11:48:37,697 INFO L895 garLoopResultBuilder]: At program point __signbit_double_returnLabel#1(lines 56 66) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((|v_skolemized_q#valueAsBitvector_26| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_26|) |ULTIMATE.start___signbit_double_~msw~1#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_26|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_26|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_26|)) .cse0))) (= |ULTIMATE.start_fmin_double_~x#1| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short11#1| (= .cse0 |ULTIMATE.start___signbit_double_~x#1|) (= |ULTIMATE.start_fmin_double_#res#1| .cse0) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= (_ bv1 32) |ULTIMATE.start___signbit_double_#res#1|) (= |ULTIMATE.start_fmin_double_~y#1| .cse0))) [2022-12-13 11:48:37,699 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:48:37,700 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:48:37,710 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,710 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,710 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,711 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,711 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,712 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,712 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,712 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:48:37 BoogieIcfgContainer [2022-12-13 11:48:37,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:48:37,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:48:37,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:48:37,714 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:48:37,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:48:30" (3/4) ... [2022-12-13 11:48:37,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:48:37,723 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_double [2022-12-13 11:48:37,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 11:48:37,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 11:48:37,726 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:48:37,727 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:48:37,749 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2022-12-13 11:48:37,749 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~Pluszero~LONGDOUBLE() && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2022-12-13 11:48:37,750 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == ~Pluszero~LONGDOUBLE() && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2022-12-13 11:48:37,750 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\exists v_skolemized_q#valueAsBitvector_26 : bv64 :: v_skolemized_q#valueAsBitvector_26[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_26[63:63], v_skolemized_q#valueAsBitvector_26[62:52], v_skolemized_q#valueAsBitvector_26[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2022-12-13 11:48:37,759 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:48:37,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:48:37,760 INFO L158 Benchmark]: Toolchain (without parser) took 7693.78ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.9MB in the beginning and 40.6MB in the end (delta: -10.7MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,760 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:48:37,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.59ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 46.4MB in the end (delta: -16.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.12ms. Allocated memory is still 73.4MB. Free memory was 46.4MB in the beginning and 44.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,761 INFO L158 Benchmark]: Boogie Preprocessor took 31.31ms. Allocated memory is still 73.4MB. Free memory was 44.7MB in the beginning and 43.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,762 INFO L158 Benchmark]: RCFGBuilder took 297.35ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 50.4MB in the end (delta: -7.4MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,762 INFO L158 Benchmark]: TraceAbstraction took 7037.18ms. Allocated memory is still 73.4MB. Free memory was 49.7MB in the beginning and 43.8MB in the end (delta: 5.9MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,762 INFO L158 Benchmark]: Witness Printer took 45.60ms. Allocated memory is still 73.4MB. Free memory was 43.2MB in the beginning and 40.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:48:37,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.59ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 46.4MB in the end (delta: -16.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.12ms. Allocated memory is still 73.4MB. Free memory was 46.4MB in the beginning and 44.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.31ms. Allocated memory is still 73.4MB. Free memory was 44.7MB in the beginning and 43.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.35ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 50.4MB in the end (delta: -7.4MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7037.18ms. Allocated memory is still 73.4MB. Free memory was 49.7MB in the beginning and 43.8MB in the end (delta: 5.9MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Witness Printer took 45.60ms. Allocated memory is still 73.4MB. Free memory was 43.2MB in the beginning and 40.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 801 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 527 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 274 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=7, InterpolantAutomatonStates: 56, 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, 11 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 94 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 206 ConstructedInterpolants, 26 QuantifiedInterpolants, 849 SizeOfPredicates, 46 NumberOfNonLiveVariables, 802 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant [2022-12-13 11:48:37,770 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,770 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,770 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,770 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,771 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,771 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,771 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] [2022-12-13 11:48:37,771 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_26,QUANTIFIED] Derived loop invariant: (((((((\exists v_skolemized_q#valueAsBitvector_26 : bv64 :: v_skolemized_q#valueAsBitvector_26[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_26[63:63], v_skolemized_q#valueAsBitvector_26[62:52], v_skolemized_q#valueAsBitvector_26[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2022-12-13 11:48:37,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b073ebd-0adf-42ba-8a60-3ee896e0dc18/bin/uautomizer-uyxdKDjOR8/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 Writing output log to file Ultimate.log Result: TRUE