./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 64bit --witnessprinter.graph.data.programhash df7f37b318c8d1f9d7b6d8bdd6b9d05156ce656d1a634258cfc85f6ce0601b19 --- 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 20:35:53,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:35:53,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:35:53,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:35:53,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:35:53,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:35:53,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:35:53,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:35:53,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:35:53,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:35:53,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:35:53,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:35:53,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:35:53,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:35:53,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:35:53,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:35:53,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:35:53,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:35:53,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:35:53,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:35:53,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:35:53,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:35:53,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:35:53,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:35:53,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:35:53,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:35:53,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:35:53,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:35:53,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:35:53,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:35:53,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:35:53,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:35:53,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:35:53,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:35:53,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:35:53,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:35:53,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:35:53,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:35:53,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:35:53,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:35:53,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:35:53,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 20:35:53,394 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:35:53,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:35:53,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:35:53,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:35:53,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:35:53,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:35:53,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:35:53,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:35:53,395 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:35:53,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:35:53,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:35:53,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:35:53,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:35:53,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:35:53,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:35:53,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:35:53,398 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:35:53,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:35:53,398 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:35:53,398 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_e21c5423-67d6-4458-9a6c-4729580ac5f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7f37b318c8d1f9d7b6d8bdd6b9d05156ce656d1a634258cfc85f6ce0601b19 [2022-12-13 20:35:53,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:35:53,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:35:53,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:35:53,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:35:53,600 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:35:53,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c [2022-12-13 20:35:56,138 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:35:56,300 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:35:56,300 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c [2022-12-13 20:35:56,308 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data/4e99a955f/08f17242e1294dc1b69312a189a2a4d1/FLAG071a0638c [2022-12-13 20:35:56,318 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data/4e99a955f/08f17242e1294dc1b69312a189a2a4d1 [2022-12-13 20:35:56,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:35:56,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:35:56,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:35:56,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:35:56,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:35:56,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5d13de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56, skipping insertion in model container [2022-12-13 20:35:56,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:35:56,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:35:56,458 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_e21c5423-67d6-4458-9a6c-4729580ac5f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-12-13 20:35:56,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:35:56,575 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:35:56,583 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_e21c5423-67d6-4458-9a6c-4729580ac5f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-12-13 20:35:56,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:35:56,666 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:35:56,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56 WrapperNode [2022-12-13 20:35:56,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:35:56,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:35:56,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:35:56,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:35:56,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,727 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 639 [2022-12-13 20:35:56,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:35:56,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:35:56,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:35:56,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:35:56,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:35:56,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:35:56,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:35:56,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:35:56,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (1/1) ... [2022-12-13 20:35:56,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:35:56,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:35:56,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:35:56,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:35:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:35:56,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:35:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 20:35:56,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 20:35:56,967 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:35:56,969 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:35:59,920 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:35:59,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:35:59,925 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:35:59,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:35:59 BoogieIcfgContainer [2022-12-13 20:35:59,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:35:59,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:35:59,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:35:59,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:35:59,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:35:56" (1/3) ... [2022-12-13 20:35:59,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653d305b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:35:59, skipping insertion in model container [2022-12-13 20:35:59,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:35:56" (2/3) ... [2022-12-13 20:35:59,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653d305b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:35:59, skipping insertion in model container [2022-12-13 20:35:59,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:35:59" (3/3) ... [2022-12-13 20:35:59,934 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c [2022-12-13 20:35:59,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:35:59,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:35:59,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:35:59,988 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;@63d800b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:35:59,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:35:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 20:35:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 20:35:59,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:35:59,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:35:59,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:00,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-12-13 20:36:00,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:00,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767741356] [2022-12-13 20:36:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:00,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:36:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:36:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:00,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 20:36:00,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:36:00,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767741356] [2022-12-13 20:36:00,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767741356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:00,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:00,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:36:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338271271] [2022-12-13 20:36:00,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:00,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:36:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:36:00,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:36:00,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:36:00,377 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:36:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:00,391 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-12-13 20:36:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:36:00,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-12-13 20:36:00,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:00,398 INFO L225 Difference]: With dead ends: 32 [2022-12-13 20:36:00,398 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 20:36:00,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 20:36:00,403 INFO L413 NwaCegarLoop]: 16 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, 16 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 20:36:00,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:36:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 20:36:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 20:36:00,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 20:36:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-13 20:36:00,429 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-12-13 20:36:00,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:00,429 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-13 20:36:00,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:36:00,430 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-13 20:36:00,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 20:36:00,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:00,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:00,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:36:00,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:00,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-12-13 20:36:00,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:36:00,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199810744] [2022-12-13 20:36:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:36:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:36:03,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:36:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:36:05,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:36:05,257 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:36:05,259 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 20:36:05,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:36:05,263 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:36:05,266 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:36:05,302 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 20:36:05,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:36:05 BoogieIcfgContainer [2022-12-13 20:36:05,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:36:05,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:36:05,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:36:05,320 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:36:05,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:35:59" (3/4) ... [2022-12-13 20:36:05,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:36:05,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:36:05,323 INFO L158 Benchmark]: Toolchain (without parser) took 9002.37ms. Allocated memory was 146.8MB in the beginning and 520.1MB in the end (delta: 373.3MB). Free memory was 102.1MB in the beginning and 245.7MB in the end (delta: -143.6MB). Peak memory consumption was 229.9MB. Max. memory is 16.1GB. [2022-12-13 20:36:05,324 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:36:05,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.79ms. Allocated memory is still 146.8MB. Free memory was 101.9MB in the beginning and 73.4MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 20:36:05,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.15ms. Allocated memory is still 146.8MB. Free memory was 73.4MB in the beginning and 65.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 20:36:05,325 INFO L158 Benchmark]: Boogie Preprocessor took 42.59ms. Allocated memory is still 146.8MB. Free memory was 65.0MB in the beginning and 60.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:36:05,326 INFO L158 Benchmark]: RCFGBuilder took 3155.82ms. Allocated memory was 146.8MB in the beginning and 358.6MB in the end (delta: 211.8MB). Free memory was 60.6MB in the beginning and 303.5MB in the end (delta: -242.9MB). Peak memory consumption was 172.3MB. Max. memory is 16.1GB. [2022-12-13 20:36:05,326 INFO L158 Benchmark]: TraceAbstraction took 5390.08ms. Allocated memory was 358.6MB in the beginning and 520.1MB in the end (delta: 161.5MB). Free memory was 302.4MB in the beginning and 245.7MB in the end (delta: 56.7MB). Peak memory consumption was 236.0MB. Max. memory is 16.1GB. [2022-12-13 20:36:05,327 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 520.1MB. Free memory is still 245.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:36:05,329 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 146.8MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.79ms. Allocated memory is still 146.8MB. Free memory was 101.9MB in the beginning and 73.4MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.15ms. Allocated memory is still 146.8MB. Free memory was 73.4MB in the beginning and 65.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.59ms. Allocated memory is still 146.8MB. Free memory was 65.0MB in the beginning and 60.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3155.82ms. Allocated memory was 146.8MB in the beginning and 358.6MB in the end (delta: 211.8MB). Free memory was 60.6MB in the beginning and 303.5MB in the end (delta: -242.9MB). Peak memory consumption was 172.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5390.08ms. Allocated memory was 358.6MB in the beginning and 520.1MB in the end (delta: 161.5MB). Free memory was 302.4MB in the beginning and 245.7MB in the end (delta: 56.7MB). Peak memory consumption was 236.0MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 520.1MB. Free memory is still 245.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 201, overapproximation of bitwiseAnd at line 192, overapproximation of bitwiseComplement at line 198, overapproximation of bitwiseXor at line 424. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L29] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 16); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (16 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L37] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 4); [L38] const SORT_15 msb_SORT_15 = (SORT_15)1 << (4 - 1); [L40] const SORT_17 mask_SORT_17 = (SORT_17)-1 >> (sizeof(SORT_17) * 8 - 5); [L41] const SORT_17 msb_SORT_17 = (SORT_17)1 << (5 - 1); [L43] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 6); [L44] const SORT_19 msb_SORT_19 = (SORT_19)1 << (6 - 1); [L46] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L47] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L49] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 8); [L50] const SORT_23 msb_SORT_23 = (SORT_23)1 << (8 - 1); [L52] const SORT_25 mask_SORT_25 = (SORT_25)-1 >> (sizeof(SORT_25) * 8 - 9); [L53] const SORT_25 msb_SORT_25 = (SORT_25)1 << (9 - 1); [L55] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 10); [L56] const SORT_27 msb_SORT_27 = (SORT_27)1 << (10 - 1); [L58] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 11); [L59] const SORT_29 msb_SORT_29 = (SORT_29)1 << (11 - 1); [L61] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 12); [L62] const SORT_31 msb_SORT_31 = (SORT_31)1 << (12 - 1); [L64] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 13); [L65] const SORT_33 msb_SORT_33 = (SORT_33)1 << (13 - 1); [L67] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 14); [L68] const SORT_35 msb_SORT_35 = (SORT_35)1 << (14 - 1); [L70] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 15); [L71] const SORT_37 msb_SORT_37 = (SORT_37)1 << (15 - 1); [L73] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 32); [L74] const SORT_62 msb_SORT_62 = (SORT_62)1 << (32 - 1); [L76] const SORT_65 mask_SORT_65 = (SORT_65)-1 >> (sizeof(SORT_65) * 8 - 17); [L77] const SORT_65 msb_SORT_65 = (SORT_65)1 << (17 - 1); [L79] const SORT_68 mask_SORT_68 = (SORT_68)-1 >> (sizeof(SORT_68) * 8 - 18); [L80] const SORT_68 msb_SORT_68 = (SORT_68)1 << (18 - 1); [L82] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 19); [L83] const SORT_71 msb_SORT_71 = (SORT_71)1 << (19 - 1); [L85] const SORT_74 mask_SORT_74 = (SORT_74)-1 >> (sizeof(SORT_74) * 8 - 20); [L86] const SORT_74 msb_SORT_74 = (SORT_74)1 << (20 - 1); [L88] const SORT_77 mask_SORT_77 = (SORT_77)-1 >> (sizeof(SORT_77) * 8 - 21); [L89] const SORT_77 msb_SORT_77 = (SORT_77)1 << (21 - 1); [L91] const SORT_80 mask_SORT_80 = (SORT_80)-1 >> (sizeof(SORT_80) * 8 - 22); [L92] const SORT_80 msb_SORT_80 = (SORT_80)1 << (22 - 1); [L94] const SORT_83 mask_SORT_83 = (SORT_83)-1 >> (sizeof(SORT_83) * 8 - 23); [L95] const SORT_83 msb_SORT_83 = (SORT_83)1 << (23 - 1); [L97] const SORT_86 mask_SORT_86 = (SORT_86)-1 >> (sizeof(SORT_86) * 8 - 24); [L98] const SORT_86 msb_SORT_86 = (SORT_86)1 << (24 - 1); [L100] const SORT_89 mask_SORT_89 = (SORT_89)-1 >> (sizeof(SORT_89) * 8 - 25); [L101] const SORT_89 msb_SORT_89 = (SORT_89)1 << (25 - 1); [L103] const SORT_92 mask_SORT_92 = (SORT_92)-1 >> (sizeof(SORT_92) * 8 - 26); [L104] const SORT_92 msb_SORT_92 = (SORT_92)1 << (26 - 1); [L106] const SORT_95 mask_SORT_95 = (SORT_95)-1 >> (sizeof(SORT_95) * 8 - 27); [L107] const SORT_95 msb_SORT_95 = (SORT_95)1 << (27 - 1); [L109] const SORT_98 mask_SORT_98 = (SORT_98)-1 >> (sizeof(SORT_98) * 8 - 28); [L110] const SORT_98 msb_SORT_98 = (SORT_98)1 << (28 - 1); [L112] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 29); [L113] const SORT_101 msb_SORT_101 = (SORT_101)1 << (29 - 1); [L115] const SORT_104 mask_SORT_104 = (SORT_104)-1 >> (sizeof(SORT_104) * 8 - 30); [L116] const SORT_104 msb_SORT_104 = (SORT_104)1 << (30 - 1); [L118] const SORT_153 mask_SORT_153 = (SORT_153)-1 >> (sizeof(SORT_153) * 8 - 2); [L119] const SORT_153 msb_SORT_153 = (SORT_153)1 << (2 - 1); [L121] const SORT_1 var_7 = 0; [L122] const SORT_1 var_8 = 1; [L123] const SORT_9 var_10 = 0; [L124] const SORT_12 var_13 = 4; [L125] const SORT_12 var_114 = 5; [L126] const SORT_11 var_116 = 0; [L127] const SORT_11 var_150 = 64; [L128] const SORT_153 var_154 = 1; [L129] const SORT_23 var_189 = 127; [L130] const SORT_11 var_197 = 1; [L131] const SORT_11 var_199 = 127; [L132] const SORT_12 var_247 = 6; [L133] const SORT_15 var_251 = 9; [L134] const SORT_21 var_269 = 64; [L135] const SORT_12 var_282 = 0; [L136] const SORT_15 var_285 = 0; [L138] SORT_1 input_2; [L139] SORT_1 input_3; [L140] SORT_1 input_4; [L142] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_11 state_56 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L145] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_11 state_117 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L147] SORT_15 state_137 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L148] SORT_15 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L149] SORT_11 state_144 = __VERIFIER_nondet_ushort() & mask_SORT_11; [L151] SORT_11 init_118_arg_1 = var_116; [L152] state_117 = init_118_arg_1 VAL [init_118_arg_1=0, mask_SORT_1=1, mask_SORT_101=4294967295, mask_SORT_104=4294967295, mask_SORT_11=65535, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_153=3, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_62=4294967295, mask_SORT_65=4294967295, mask_SORT_68=4294967295, mask_SORT_71=4294967295, mask_SORT_74=4294967295, mask_SORT_77=4294967295, mask_SORT_80=4294967295, mask_SORT_83=4294967295, mask_SORT_86=4294967295, mask_SORT_89=4294967295, mask_SORT_9=4294967295, mask_SORT_92=4294967295, mask_SORT_95=4294967295, mask_SORT_98=4294967295, msb_SORT_1=1, msb_SORT_101=268435456, msb_SORT_104=536870912, msb_SORT_11=32768, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_153=2, msb_SORT_17=16, msb_SORT_19=32, msb_SORT_21=64, msb_SORT_23=128, msb_SORT_25=256, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_62=2147483648, msb_SORT_65=65536, msb_SORT_68=131072, msb_SORT_71=262144, msb_SORT_74=524288, msb_SORT_77=1048576, msb_SORT_80=2097152, msb_SORT_83=4194304, msb_SORT_86=8388608, msb_SORT_89=16777216, msb_SORT_9=1073741824, msb_SORT_92=33554432, msb_SORT_95=67108864, msb_SORT_98=134217728, state_117=0, state_137=0, state_140=0, state_144=0, state_40=0, state_5=0, state_56=0, state_58=0, var_10=0, var_114=5, var_116=0, var_13=4, var_150=64, var_154=1, var_189=127, var_197=1, var_199=127, var_247=6, var_251=9, var_269=64, var_282=0, var_285=0, var_7=0, var_8=1] [L155] input_2 = __VERIFIER_nondet_uchar() [L156] input_3 = __VERIFIER_nondet_uchar() [L157] input_3 = input_3 & mask_SORT_1 [L158] input_4 = __VERIFIER_nondet_uchar() [L159] input_4 = input_4 & mask_SORT_1 [L161] SORT_1 var_125_arg_0 = state_5; [L162] SORT_1 var_125 = ~var_125_arg_0; [L163] SORT_1 var_126_arg_0 = var_125; [L164] SORT_1 var_126 = ~var_126_arg_0; [L165] SORT_1 var_127_arg_0 = state_5; [L166] SORT_1 var_127_arg_1 = var_126; [L167] SORT_1 var_127 = var_127_arg_0 | var_127_arg_1; [L168] var_127 = var_127 & mask_SORT_1 [L169] SORT_1 constr_128_arg_0 = var_127; VAL [constr_128_arg_0=1, init_118_arg_1=0, input_2=1, input_3=249, input_4=9, mask_SORT_1=1, mask_SORT_101=4294967295, mask_SORT_104=4294967295, mask_SORT_11=65535, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_153=3, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_62=4294967295, mask_SORT_65=4294967295, mask_SORT_68=4294967295, mask_SORT_71=4294967295, mask_SORT_74=4294967295, mask_SORT_77=4294967295, mask_SORT_80=4294967295, mask_SORT_83=4294967295, mask_SORT_86=4294967295, mask_SORT_89=4294967295, mask_SORT_9=4294967295, mask_SORT_92=4294967295, mask_SORT_95=4294967295, mask_SORT_98=4294967295, msb_SORT_1=1, msb_SORT_101=268435456, msb_SORT_104=536870912, msb_SORT_11=32768, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_153=2, msb_SORT_17=16, msb_SORT_19=32, msb_SORT_21=64, msb_SORT_23=128, msb_SORT_25=256, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_62=2147483648, msb_SORT_65=65536, msb_SORT_68=131072, msb_SORT_71=262144, msb_SORT_74=524288, msb_SORT_77=1048576, msb_SORT_80=2097152, msb_SORT_83=4194304, msb_SORT_86=8388608, msb_SORT_89=16777216, msb_SORT_9=1073741824, msb_SORT_92=33554432, msb_SORT_95=67108864, msb_SORT_98=134217728, state_117=0, state_137=0, state_140=0, state_144=0, state_40=0, state_5=0, state_56=0, state_58=0, var_10=0, var_114=5, var_116=0, var_125=2, var_125_arg_0=0, var_126=6, var_126_arg_0=2, var_127=1, var_127_arg_0=0, var_127_arg_1=6, var_13=4, var_150=64, var_154=1, var_189=127, var_197=1, var_199=127, var_247=6, var_251=9, var_269=64, var_282=0, var_285=0, var_7=0, var_8=1] [L170] CALL assume_abort_if_not(constr_128_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L170] RET assume_abort_if_not(constr_128_arg_0) VAL [constr_128_arg_0=1, init_118_arg_1=0, input_2=1, input_3=249, input_4=9, mask_SORT_1=1, mask_SORT_101=4294967295, mask_SORT_104=4294967295, mask_SORT_11=65535, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_153=3, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_62=4294967295, mask_SORT_65=4294967295, mask_SORT_68=4294967295, mask_SORT_71=4294967295, mask_SORT_74=4294967295, mask_SORT_77=4294967295, mask_SORT_80=4294967295, mask_SORT_83=4294967295, mask_SORT_86=4294967295, mask_SORT_89=4294967295, mask_SORT_9=4294967295, mask_SORT_92=4294967295, mask_SORT_95=4294967295, mask_SORT_98=4294967295, msb_SORT_1=1, msb_SORT_101=268435456, msb_SORT_104=536870912, msb_SORT_11=32768, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_153=2, msb_SORT_17=16, msb_SORT_19=32, msb_SORT_21=64, msb_SORT_23=128, msb_SORT_25=256, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_62=2147483648, msb_SORT_65=65536, msb_SORT_68=131072, msb_SORT_71=262144, msb_SORT_74=524288, msb_SORT_77=1048576, msb_SORT_80=2097152, msb_SORT_83=4194304, msb_SORT_86=8388608, msb_SORT_89=16777216, msb_SORT_9=1073741824, msb_SORT_92=33554432, msb_SORT_95=67108864, msb_SORT_98=134217728, state_117=0, state_137=0, state_140=0, state_144=0, state_40=0, state_5=0, state_56=0, state_58=0, var_10=0, var_114=5, var_116=0, var_125=2, var_125_arg_0=0, var_126=6, var_126_arg_0=2, var_127=1, var_127_arg_0=0, var_127_arg_1=6, var_13=4, var_150=64, var_154=1, var_189=127, var_197=1, var_199=127, var_247=6, var_251=9, var_269=64, var_282=0, var_285=0, var_7=0, var_8=1] [L171] SORT_1 var_129_arg_0 = var_8; [L172] var_129_arg_0 = var_129_arg_0 & mask_SORT_1 [L173] SORT_11 var_129 = var_129_arg_0; [L174] SORT_11 var_130_arg_0 = state_117; [L175] SORT_11 var_130_arg_1 = var_129; [L176] SORT_1 var_130 = var_130_arg_0 <= var_130_arg_1; [L177] SORT_1 var_131_arg_0 = input_4; [L178] SORT_1 var_131_arg_1 = var_130; [L179] SORT_1 var_131 = var_131_arg_0 ^ var_131_arg_1; [L180] SORT_1 var_132_arg_0 = var_131; [L181] SORT_1 var_132 = ~var_132_arg_0; [L182] SORT_1 var_133_arg_0 = var_131; [L183] SORT_1 var_133 = ~var_133_arg_0; [L184] SORT_1 var_134_arg_0 = var_132; [L185] SORT_1 var_134_arg_1 = var_133; [L186] SORT_1 var_134 = var_134_arg_0 | var_134_arg_1; [L187] var_134 = var_134 & mask_SORT_1 [L188] SORT_1 constr_135_arg_0 = var_134; VAL [constr_128_arg_0=1, constr_135_arg_0=253, init_118_arg_1=0, input_2=1, input_3=249, input_4=9, mask_SORT_1=1, mask_SORT_101=4294967295, mask_SORT_104=4294967295, mask_SORT_11=65535, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_153=3, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_62=4294967295, mask_SORT_65=4294967295, mask_SORT_68=4294967295, mask_SORT_71=4294967295, mask_SORT_74=4294967295, mask_SORT_77=4294967295, mask_SORT_80=4294967295, mask_SORT_83=4294967295, mask_SORT_86=4294967295, mask_SORT_89=4294967295, mask_SORT_9=4294967295, mask_SORT_92=4294967295, mask_SORT_95=4294967295, mask_SORT_98=4294967295, msb_SORT_1=1, msb_SORT_101=268435456, msb_SORT_104=536870912, msb_SORT_11=32768, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_153=2, msb_SORT_17=16, msb_SORT_19=32, msb_SORT_21=64, msb_SORT_23=128, msb_SORT_25=256, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_62=2147483648, msb_SORT_65=65536, msb_SORT_68=131072, msb_SORT_71=262144, msb_SORT_74=524288, msb_SORT_77=1048576, msb_SORT_80=2097152, msb_SORT_83=4194304, msb_SORT_86=8388608, msb_SORT_89=16777216, msb_SORT_9=1073741824, msb_SORT_92=33554432, msb_SORT_95=67108864, msb_SORT_98=134217728, state_117=0, state_137=0, state_140=0, state_144=0, state_40=0, state_5=0, state_56=0, state_58=0, var_10=0, var_114=5, var_116=0, var_125=2, var_125_arg_0=0, var_126=6, var_126_arg_0=2, var_127=1, var_127_arg_0=0, var_127_arg_1=6, var_129=1, var_129_arg_0=1, var_13=4, var_130=1, var_130_arg_0=0, var_130_arg_1=1, var_131=9, var_131_arg_0=9, var_131_arg_1=1, var_132=253, var_132_arg_0=9, var_133=253, var_133_arg_0=9, var_134=253, var_134_arg_0=253, var_134_arg_1=253, var_150=64, var_154=1, var_189=127, var_197=1, var_199=127, var_247=6, var_251=9, var_269=64, var_282=0, var_285=0, var_7=0, var_8=1] [L189] CALL assume_abort_if_not(constr_135_arg_0) VAL [\old(cond)=253] [L21] COND FALSE !(!cond) VAL [\old(cond)=253, cond=253] [L189] RET assume_abort_if_not(constr_135_arg_0) VAL [constr_128_arg_0=1, constr_135_arg_0=253, init_118_arg_1=0, input_2=1, input_3=249, input_4=9, mask_SORT_1=1, mask_SORT_101=4294967295, mask_SORT_104=4294967295, mask_SORT_11=65535, mask_SORT_12=7, mask_SORT_15=15, mask_SORT_153=3, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_62=4294967295, mask_SORT_65=4294967295, mask_SORT_68=4294967295, mask_SORT_71=4294967295, mask_SORT_74=4294967295, mask_SORT_77=4294967295, mask_SORT_80=4294967295, mask_SORT_83=4294967295, mask_SORT_86=4294967295, mask_SORT_89=4294967295, mask_SORT_9=4294967295, mask_SORT_92=4294967295, mask_SORT_95=4294967295, mask_SORT_98=4294967295, msb_SORT_1=1, msb_SORT_101=268435456, msb_SORT_104=536870912, msb_SORT_11=32768, msb_SORT_12=4, msb_SORT_15=8, msb_SORT_153=2, msb_SORT_17=16, msb_SORT_19=32, msb_SORT_21=64, msb_SORT_23=128, msb_SORT_25=256, msb_SORT_27=512, msb_SORT_29=1024, msb_SORT_31=2048, msb_SORT_33=4096, msb_SORT_35=8192, msb_SORT_37=16384, msb_SORT_62=2147483648, msb_SORT_65=65536, msb_SORT_68=131072, msb_SORT_71=262144, msb_SORT_74=524288, msb_SORT_77=1048576, msb_SORT_80=2097152, msb_SORT_83=4194304, msb_SORT_86=8388608, msb_SORT_89=16777216, msb_SORT_9=1073741824, msb_SORT_92=33554432, msb_SORT_95=67108864, msb_SORT_98=134217728, state_117=0, state_137=0, state_140=0, state_144=0, state_40=0, state_5=0, state_56=0, state_58=0, var_10=0, var_114=5, var_116=0, var_125=2, var_125_arg_0=0, var_126=6, var_126_arg_0=2, var_127=1, var_127_arg_0=0, var_127_arg_1=6, var_129=1, var_129_arg_0=1, var_13=4, var_130=1, var_130_arg_0=0, var_130_arg_1=1, var_131=9, var_131_arg_0=9, var_131_arg_1=1, var_132=253, var_132_arg_0=9, var_133=253, var_133_arg_0=9, var_134=253, var_134_arg_0=253, var_134_arg_1=253, var_150=64, var_154=1, var_189=127, var_197=1, var_199=127, var_247=6, var_251=9, var_269=64, var_282=0, var_285=0, var_7=0, var_8=1] [L191] SORT_12 var_115_arg_0 = var_114; [L192] var_115_arg_0 = var_115_arg_0 & mask_SORT_12 [L193] SORT_11 var_115 = var_115_arg_0; [L194] SORT_11 var_119_arg_0 = var_115; [L195] SORT_11 var_119_arg_1 = state_117; [L196] SORT_1 var_119 = var_119_arg_0 < var_119_arg_1; [L197] SORT_1 var_14_arg_0 = input_3; [L198] SORT_1 var_14 = ~var_14_arg_0; [L199] SORT_1 var_16_arg_0 = var_14; [L200] SORT_12 var_16_arg_1 = var_13; [L201] SORT_15 var_16 = ((SORT_15)var_16_arg_0 << 3) | var_16_arg_1; [L202] var_16 = var_16 & mask_SORT_15 [L203] SORT_1 var_18_arg_0 = input_3; [L204] SORT_15 var_18_arg_1 = var_16; [L205] SORT_17 var_18 = ((SORT_17)var_18_arg_0 << 4) | var_18_arg_1; [L206] var_18 = var_18 & mask_SORT_17 [L207] SORT_1 var_20_arg_0 = input_3; [L208] SORT_17 var_20_arg_1 = var_18; [L209] SORT_19 var_20 = ((SORT_19)var_20_arg_0 << 5) | var_20_arg_1; [L210] var_20 = var_20 & mask_SORT_19 [L211] SORT_1 var_22_arg_0 = input_3; [L212] SORT_19 var_22_arg_1 = var_20; [L213] SORT_21 var_22 = ((SORT_21)var_22_arg_0 << 6) | var_22_arg_1; [L214] var_22 = var_22 & mask_SORT_21 [L215] SORT_1 var_24_arg_0 = input_3; [L216] SORT_21 var_24_arg_1 = var_22; [L217] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 7) | var_24_arg_1; [L218] var_24 = var_24 & mask_SORT_23 [L219] SORT_1 var_26_arg_0 = input_3; [L220] SORT_23 var_26_arg_1 = var_24; [L221] SORT_25 var_26 = ((SORT_25)var_26_arg_0 << 8) | var_26_arg_1; [L222] var_26 = var_26 & mask_SORT_25 [L223] SORT_1 var_28_arg_0 = var_14; [L224] SORT_25 var_28_arg_1 = var_26; [L225] SORT_27 var_28 = ((SORT_27)var_28_arg_0 << 9) | var_28_arg_1; [L226] var_28 = var_28 & mask_SORT_27 [L227] SORT_1 var_30_arg_0 = var_14; [L228] SORT_27 var_30_arg_1 = var_28; [L229] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 10) | var_30_arg_1; [L230] var_30 = var_30 & mask_SORT_29 [L231] SORT_1 var_32_arg_0 = var_14; [L232] SORT_29 var_32_arg_1 = var_30; [L233] SORT_31 var_32 = ((SORT_31)var_32_arg_0 << 11) | var_32_arg_1; [L234] var_32 = var_32 & mask_SORT_31 [L235] SORT_1 var_34_arg_0 = var_14; [L236] SORT_31 var_34_arg_1 = var_32; [L237] SORT_33 var_34 = ((SORT_33)var_34_arg_0 << 12) | var_34_arg_1; [L238] var_34 = var_34 & mask_SORT_33 [L239] SORT_1 var_36_arg_0 = var_14; [L240] SORT_33 var_36_arg_1 = var_34; [L241] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 13) | var_36_arg_1; [L242] var_36 = var_36 & mask_SORT_35 [L243] SORT_1 var_38_arg_0 = var_14; [L244] SORT_35 var_38_arg_1 = var_36; [L245] SORT_37 var_38 = ((SORT_37)var_38_arg_0 << 14) | var_38_arg_1; [L246] var_38 = var_38 & mask_SORT_37 [L247] SORT_1 var_39_arg_0 = var_14; [L248] SORT_37 var_39_arg_1 = var_38; [L249] SORT_11 var_39 = ((SORT_11)var_39_arg_0 << 15) | var_39_arg_1; [L250] SORT_1 var_41_arg_0 = state_40; [L251] SORT_1 var_41 = ~var_41_arg_0; [L252] SORT_1 var_42_arg_0 = state_40; [L253] SORT_12 var_42_arg_1 = var_13; [L254] SORT_15 var_42 = ((SORT_15)var_42_arg_0 << 3) | var_42_arg_1; [L255] var_42 = var_42 & mask_SORT_15 [L256] SORT_1 var_43_arg_0 = var_41; [L257] SORT_15 var_43_arg_1 = var_42; [L258] SORT_17 var_43 = ((SORT_17)var_43_arg_0 << 4) | var_43_arg_1; [L259] var_43 = var_43 & mask_SORT_17 [L260] SORT_1 var_44_arg_0 = state_40; [L261] SORT_17 var_44_arg_1 = var_43; [L262] SORT_19 var_44 = ((SORT_19)var_44_arg_0 << 5) | var_44_arg_1; [L263] var_44 = var_44 & mask_SORT_19 [L264] SORT_1 var_45_arg_0 = var_41; [L265] SORT_19 var_45_arg_1 = var_44; [L266] SORT_21 var_45 = ((SORT_21)var_45_arg_0 << 6) | var_45_arg_1; [L267] var_45 = var_45 & mask_SORT_21 [L268] SORT_1 var_46_arg_0 = var_41; [L269] SORT_21 var_46_arg_1 = var_45; [L270] SORT_23 var_46 = ((SORT_23)var_46_arg_0 << 7) | var_46_arg_1; [L271] var_46 = var_46 & mask_SORT_23 [L272] SORT_1 var_47_arg_0 = state_40; [L273] SORT_23 var_47_arg_1 = var_46; [L274] SORT_25 var_47 = ((SORT_25)var_47_arg_0 << 8) | var_47_arg_1; [L275] var_47 = var_47 & mask_SORT_25 [L276] SORT_1 var_48_arg_0 = var_41; [L277] SORT_25 var_48_arg_1 = var_47; [L278] SORT_27 var_48 = ((SORT_27)var_48_arg_0 << 9) | var_48_arg_1; [L279] var_48 = var_48 & mask_SORT_27 [L280] SORT_1 var_49_arg_0 = var_41; [L281] SORT_27 var_49_arg_1 = var_48; [L282] SORT_29 var_49 = ((SORT_29)var_49_arg_0 << 10) | var_49_arg_1; [L283] var_49 = var_49 & mask_SORT_29 [L284] SORT_1 var_50_arg_0 = var_41; [L285] SORT_29 var_50_arg_1 = var_49; [L286] SORT_31 var_50 = ((SORT_31)var_50_arg_0 << 11) | var_50_arg_1; [L287] var_50 = var_50 & mask_SORT_31 [L288] SORT_1 var_51_arg_0 = var_41; [L289] SORT_31 var_51_arg_1 = var_50; [L290] SORT_33 var_51 = ((SORT_33)var_51_arg_0 << 12) | var_51_arg_1; [L291] var_51 = var_51 & mask_SORT_33 [L292] SORT_1 var_52_arg_0 = var_41; [L293] SORT_33 var_52_arg_1 = var_51; [L294] SORT_35 var_52 = ((SORT_35)var_52_arg_0 << 13) | var_52_arg_1; [L295] var_52 = var_52 & mask_SORT_35 [L296] SORT_1 var_53_arg_0 = var_41; [L297] SORT_35 var_53_arg_1 = var_52; [L298] SORT_37 var_53 = ((SORT_37)var_53_arg_0 << 14) | var_53_arg_1; [L299] var_53 = var_53 & mask_SORT_37 [L300] SORT_1 var_54_arg_0 = var_41; [L301] SORT_37 var_54_arg_1 = var_53; [L302] SORT_11 var_54 = ((SORT_11)var_54_arg_0 << 15) | var_54_arg_1; [L303] SORT_11 var_55_arg_0 = var_39; [L304] SORT_11 var_55_arg_1 = var_54; [L305] SORT_11 var_55 = var_55_arg_0 + var_55_arg_1; [L306] SORT_11 var_57_arg_0 = state_56; [L307] SORT_11 var_57 = -var_57_arg_0; [L308] SORT_1 var_59_arg_0 = state_58; [L309] SORT_11 var_59_arg_1 = var_57; [L310] SORT_11 var_59_arg_2 = state_56; [L311] SORT_11 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L312] SORT_11 var_60_arg_0 = var_55; [L313] SORT_11 var_60_arg_1 = var_59; [L314] SORT_11 var_60 = var_60_arg_0 + var_60_arg_1; [L315] var_60 = var_60 & mask_SORT_11 [L316] SORT_11 var_61_arg_0 = var_60; [L317] SORT_1 var_61 = var_61_arg_0 >> 15; [L318] SORT_1 var_63_arg_0 = var_61; [L319] SORT_9 var_63_arg_1 = var_10; [L320] SORT_62 var_63 = ((SORT_62)var_63_arg_0 << 31) | var_63_arg_1; [L321] var_63 = var_63 & mask_SORT_62 [L322] SORT_11 var_106_arg_0 = var_60; [L323] SORT_1 var_106 = var_106_arg_0 >> 15; [L324] SORT_11 var_103_arg_0 = var_60; [L325] SORT_1 var_103 = var_103_arg_0 >> 15; [L326] SORT_11 var_100_arg_0 = var_60; [L327] SORT_1 var_100 = var_100_arg_0 >> 15; [L328] SORT_11 var_97_arg_0 = var_60; [L329] SORT_1 var_97 = var_97_arg_0 >> 15; [L330] SORT_11 var_94_arg_0 = var_60; [L331] SORT_1 var_94 = var_94_arg_0 >> 15; [L332] SORT_11 var_91_arg_0 = var_60; [L333] SORT_1 var_91 = var_91_arg_0 >> 15; [L334] SORT_11 var_88_arg_0 = var_60; [L335] SORT_1 var_88 = var_88_arg_0 >> 15; [L336] SORT_11 var_85_arg_0 = var_60; [L337] SORT_1 var_85 = var_85_arg_0 >> 15; [L338] SORT_11 var_82_arg_0 = var_60; [L339] SORT_1 var_82 = var_82_arg_0 >> 15; [L340] SORT_11 var_79_arg_0 = var_60; [L341] SORT_1 var_79 = var_79_arg_0 >> 15; [L342] SORT_11 var_76_arg_0 = var_60; [L343] SORT_1 var_76 = var_76_arg_0 >> 15; [L344] SORT_11 var_73_arg_0 = var_60; [L345] SORT_1 var_73 = var_73_arg_0 >> 15; [L346] SORT_11 var_70_arg_0 = var_60; [L347] SORT_1 var_70 = var_70_arg_0 >> 15; [L348] SORT_11 var_67_arg_0 = var_60; [L349] SORT_1 var_67 = var_67_arg_0 >> 15; [L350] SORT_11 var_64_arg_0 = var_60; [L351] SORT_1 var_64 = var_64_arg_0 >> 15; [L352] SORT_1 var_66_arg_0 = var_64; [L353] SORT_11 var_66_arg_1 = var_60; [L354] SORT_65 var_66 = ((SORT_65)var_66_arg_0 << 16) | var_66_arg_1; [L355] var_66 = var_66 & mask_SORT_65 [L356] SORT_1 var_69_arg_0 = var_67; [L357] SORT_65 var_69_arg_1 = var_66; [L358] SORT_68 var_69 = ((SORT_68)var_69_arg_0 << 17) | var_69_arg_1; [L359] var_69 = var_69 & mask_SORT_68 [L360] SORT_1 var_72_arg_0 = var_70; [L361] SORT_68 var_72_arg_1 = var_69; [L362] SORT_71 var_72 = ((SORT_71)var_72_arg_0 << 18) | var_72_arg_1; [L363] var_72 = var_72 & mask_SORT_71 [L364] SORT_1 var_75_arg_0 = var_73; [L365] SORT_71 var_75_arg_1 = var_72; [L366] SORT_74 var_75 = ((SORT_74)var_75_arg_0 << 19) | var_75_arg_1; [L367] var_75 = var_75 & mask_SORT_74 [L368] SORT_1 var_78_arg_0 = var_76; [L369] SORT_74 var_78_arg_1 = var_75; [L370] SORT_77 var_78 = ((SORT_77)var_78_arg_0 << 20) | var_78_arg_1; [L371] var_78 = var_78 & mask_SORT_77 [L372] SORT_1 var_81_arg_0 = var_79; [L373] SORT_77 var_81_arg_1 = var_78; [L374] SORT_80 var_81 = ((SORT_80)var_81_arg_0 << 21) | var_81_arg_1; [L375] var_81 = var_81 & mask_SORT_80 [L376] SORT_1 var_84_arg_0 = var_82; [L377] SORT_80 var_84_arg_1 = var_81; [L378] SORT_83 var_84 = ((SORT_83)var_84_arg_0 << 22) | var_84_arg_1; [L379] var_84 = var_84 & mask_SORT_83 [L380] SORT_1 var_87_arg_0 = var_85; [L381] SORT_83 var_87_arg_1 = var_84; [L382] SORT_86 var_87 = ((SORT_86)var_87_arg_0 << 23) | var_87_arg_1; [L383] var_87 = var_87 & mask_SORT_86 [L384] SORT_1 var_90_arg_0 = var_88; [L385] SORT_86 var_90_arg_1 = var_87; [L386] SORT_89 var_90 = ((SORT_89)var_90_arg_0 << 24) | var_90_arg_1; [L387] var_90 = var_90 & mask_SORT_89 [L388] SORT_1 var_93_arg_0 = var_91; [L389] SORT_89 var_93_arg_1 = var_90; [L390] SORT_92 var_93 = ((SORT_92)var_93_arg_0 << 25) | var_93_arg_1; [L391] var_93 = var_93 & mask_SORT_92 [L392] SORT_1 var_96_arg_0 = var_94; [L393] SORT_92 var_96_arg_1 = var_93; [L394] SORT_95 var_96 = ((SORT_95)var_96_arg_0 << 26) | var_96_arg_1; [L395] var_96 = var_96 & mask_SORT_95 [L396] SORT_1 var_99_arg_0 = var_97; [L397] SORT_95 var_99_arg_1 = var_96; [L398] SORT_98 var_99 = ((SORT_98)var_99_arg_0 << 27) | var_99_arg_1; [L399] var_99 = var_99 & mask_SORT_98 [L400] SORT_1 var_102_arg_0 = var_100; [L401] SORT_98 var_102_arg_1 = var_99; [L402] SORT_101 var_102 = ((SORT_101)var_102_arg_0 << 28) | var_102_arg_1; [L403] var_102 = var_102 & mask_SORT_101 [L404] SORT_1 var_105_arg_0 = var_103; [L405] SORT_101 var_105_arg_1 = var_102; [L406] SORT_104 var_105 = ((SORT_104)var_105_arg_0 << 29) | var_105_arg_1; [L407] var_105 = var_105 & mask_SORT_104 [L408] SORT_1 var_107_arg_0 = var_106; [L409] SORT_104 var_107_arg_1 = var_105; [L410] SORT_9 var_107 = ((SORT_9)var_107_arg_0 << 30) | var_107_arg_1; [L411] SORT_9 var_108_arg_0 = var_107; [L412] var_108_arg_0 = var_108_arg_0 & mask_SORT_9 [L413] SORT_62 var_108 = var_108_arg_0; [L414] SORT_62 var_109_arg_0 = var_63; [L415] SORT_62 var_109_arg_1 = var_108; [L416] SORT_1 var_109 = var_109_arg_0 <= var_109_arg_1; [L417] SORT_1 var_110_arg_0 = var_109; [L418] SORT_1 var_110_arg_1 = var_8; [L419] SORT_1 var_110_arg_2 = var_7; [L420] SORT_1 var_110 = var_110_arg_0 ? var_110_arg_1 : var_110_arg_2; [L421] var_110 = var_110 & mask_SORT_1 [L422] SORT_1 var_111_arg_0 = input_3; [L423] SORT_1 var_111_arg_1 = var_110; [L424] SORT_1 var_111 = var_111_arg_0 ^ var_111_arg_1; [L425] SORT_1 var_112_arg_0 = var_111; [L426] SORT_1 var_112 = ~var_112_arg_0; [L427] SORT_1 var_120_arg_0 = var_119; [L428] SORT_1 var_120_arg_1 = var_112; [L429] SORT_1 var_120_arg_2 = var_8; [L430] SORT_1 var_120 = var_120_arg_0 ? var_120_arg_1 : var_120_arg_2; [L431] SORT_1 var_121_arg_0 = var_120; [L432] SORT_1 var_121 = ~var_121_arg_0; [L433] SORT_1 var_122_arg_0 = var_120; [L434] SORT_1 var_122 = ~var_122_arg_0; [L435] SORT_1 var_123_arg_0 = var_121; [L436] SORT_1 var_123_arg_1 = var_122; [L437] SORT_1 var_123 = var_123_arg_0 & var_123_arg_1; [L438] var_123 = var_123 & mask_SORT_1 [L439] SORT_1 bad_124_arg_0 = var_123; [L440] CALL __VERIFIER_assert(!(bad_124_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 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 20:36:05,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 64bit --witnessprinter.graph.data.programhash df7f37b318c8d1f9d7b6d8bdd6b9d05156ce656d1a634258cfc85f6ce0601b19 --- 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 20:36:06,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:36:06,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:36:06,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:36:06,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:36:06,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:36:06,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:36:06,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:36:06,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:36:06,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:36:06,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:36:06,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:36:06,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:36:06,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:36:06,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:36:06,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:36:06,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:36:06,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:36:06,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:36:06,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:36:06,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:36:06,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:36:06,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:36:06,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:36:06,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:36:06,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:36:06,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:36:06,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:36:06,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:36:06,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:36:06,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:36:06,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:36:06,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:36:06,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:36:06,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:36:06,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:36:06,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:36:06,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:36:06,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:36:06,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:36:06,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:36:06,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 20:36:06,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:36:06,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:36:06,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:36:06,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:36:06,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:36:06,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:36:06,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:36:06,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:36:06,975 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:36:06,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:36:06,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:36:06,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:36:06,977 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:36:06,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:36:06,978 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:36:06,978 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:36:06,978 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_e21c5423-67d6-4458-9a6c-4729580ac5f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7f37b318c8d1f9d7b6d8bdd6b9d05156ce656d1a634258cfc85f6ce0601b19 [2022-12-13 20:36:07,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:36:07,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:36:07,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:36:07,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:36:07,201 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:36:07,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c [2022-12-13 20:36:09,717 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:36:09,934 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:36:09,934 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c [2022-12-13 20:36:09,943 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data/b9b4523ff/310c8a7dad664ede8e9566d0d8d03d09/FLAG631d0443b [2022-12-13 20:36:10,267 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/data/b9b4523ff/310c8a7dad664ede8e9566d0d8d03d09 [2022-12-13 20:36:10,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:36:10,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:36:10,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:36:10,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:36:10,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:36:10,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc746f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10, skipping insertion in model container [2022-12-13 20:36:10,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:36:10,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:36:10,401 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_e21c5423-67d6-4458-9a6c-4729580ac5f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-12-13 20:36:10,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:36:10,536 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:36:10,546 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_e21c5423-67d6-4458-9a6c-4729580ac5f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c[1132,1145] [2022-12-13 20:36:10,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:36:10,611 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:36:10,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10 WrapperNode [2022-12-13 20:36:10,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:36:10,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:36:10,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:36:10,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:36:10,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,669 INFO L138 Inliner]: procedures = 11, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 639 [2022-12-13 20:36:10,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:36:10,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:36:10,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:36:10,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:36:10,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:36:10,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:36:10,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:36:10,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:36:10,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (1/1) ... [2022-12-13 20:36:10,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:36:10,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:36:10,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:36:10,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:36:10,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:36:10,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:36:10,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 20:36:10,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 20:36:10,940 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:36:10,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:36:11,514 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:36:11,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:36:11,520 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:36:11,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:36:11 BoogieIcfgContainer [2022-12-13 20:36:11,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:36:11,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:36:11,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:36:11,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:36:11,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:36:10" (1/3) ... [2022-12-13 20:36:11,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e956dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:36:11, skipping insertion in model container [2022-12-13 20:36:11,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:36:10" (2/3) ... [2022-12-13 20:36:11,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e956dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:36:11, skipping insertion in model container [2022-12-13 20:36:11,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:36:11" (3/3) ... [2022-12-13 20:36:11,528 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_intersymbol_analog_estimation_convergence.c [2022-12-13 20:36:11,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:36:11,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:36:11,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:36:11,581 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;@142a367c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:36:11,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:36:11,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 20:36:11,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 20:36:11,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:11,590 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:11,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash -639607165, now seen corresponding path program 1 times [2022-12-13 20:36:11,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:11,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795543223] [2022-12-13 20:36:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:11,605 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 20:36:11,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:11,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:11,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:11,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 20:36:11,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 20:36:11,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:36:11,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:11,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795543223] [2022-12-13 20:36:11,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795543223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:11,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:11,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:36:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640220441] [2022-12-13 20:36:11,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:11,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:36:11,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:11,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:36:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:36:11,885 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:36:11,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:11,897 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-12-13 20:36:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:36:11,899 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-12-13 20:36:11,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:11,905 INFO L225 Difference]: With dead ends: 32 [2022-12-13 20:36:11,905 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 20:36:11,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 20:36:11,910 INFO L413 NwaCegarLoop]: 16 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, 16 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 20:36:11,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:36:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 20:36:11,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 20:36:11,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 20:36:11,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-13 20:36:11,937 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2022-12-13 20:36:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:11,938 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-13 20:36:11,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:36:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-13 20:36:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 20:36:11,939 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:11,939 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:11,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:12,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:12,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash -324183425, now seen corresponding path program 1 times [2022-12-13 20:36:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:12,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077539423] [2022-12-13 20:36:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:12,147 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 20:36:12,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:12,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:12,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:12,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 20:36:12,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 20:36:12,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:36:12,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:12,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077539423] [2022-12-13 20:36:12,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077539423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:36:12,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:36:12,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:36:12,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264917471] [2022-12-13 20:36:12,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:36:12,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:36:12,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:12,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:36:12,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:36:12,682 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 20:36:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:12,942 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-12-13 20:36:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 20:36:12,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 17 [2022-12-13 20:36:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:12,943 INFO L225 Difference]: With dead ends: 29 [2022-12-13 20:36:12,943 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 20:36:12,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:36:12,944 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:12,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 20:36:12,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 20:36:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2022-12-13 20:36:12,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 20:36:12,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-12-13 20:36:12,950 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2022-12-13 20:36:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:12,950 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-12-13 20:36:12,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 20:36:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-12-13 20:36:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 20:36:12,951 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:12,951 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 20:36:12,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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)] Ended with exit code 0 [2022-12-13 20:36:13,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:13,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash 322101155, now seen corresponding path program 1 times [2022-12-13 20:36:13,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:13,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627074417] [2022-12-13 20:36:13,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:13,159 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 20:36:13,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:13,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:13,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:13,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 20:36:13,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 20:36:13,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:14,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:14,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627074417] [2022-12-13 20:36:14,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627074417] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:14,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1296466550] [2022-12-13 20:36:14,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:36:14,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:14,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 20:36:14,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 20:36:14,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2022-12-13 20:36:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:36:14,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-13 20:36:14,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-13 20:36:14,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:15,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1296466550] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:15,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:36:15,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-12-13 20:36:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072118780] [2022-12-13 20:36:15,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:36:15,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:36:15,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:15,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:36:15,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:36:15,084 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 20:36:15,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:15,475 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-12-13 20:36:15,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:36:15,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2022-12-13 20:36:15,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:15,476 INFO L225 Difference]: With dead ends: 36 [2022-12-13 20:36:15,476 INFO L226 Difference]: Without dead ends: 34 [2022-12-13 20:36:15,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:36:15,477 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:15,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 20:36:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-13 20:36:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-12-13 20:36:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 20:36:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-12-13 20:36:15,485 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 32 [2022-12-13 20:36:15,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:15,485 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-12-13 20:36:15,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 20:36:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-12-13 20:36:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 20:36:15,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:15,486 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-12-13 20:36:15,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:15,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2022-12-13 20:36:15,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:15,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:15,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:15,891 INFO L85 PathProgramCache]: Analyzing trace with hash -220860929, now seen corresponding path program 2 times [2022-12-13 20:36:15,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:15,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425767451] [2022-12-13 20:36:15,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:36:15,894 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 20:36:15,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:15,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:15,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:16,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:36:16,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:16,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 20:36:16,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:36:16,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:16,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:16,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425767451] [2022-12-13 20:36:16,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425767451] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:16,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1739041343] [2022-12-13 20:36:16,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:36:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:16,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 20:36:16,927 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 20:36:16,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-13 20:36:17,901 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:36:17,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:17,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-13 20:36:17,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:36:18,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:18,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1739041343] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:18,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:36:18,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2022-12-13 20:36:18,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380496642] [2022-12-13 20:36:18,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:36:18,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:36:18,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:18,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:36:18,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:36:18,274 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 20:36:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:18,946 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-12-13 20:36:18,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:36:18,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2022-12-13 20:36:18,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:18,947 INFO L225 Difference]: With dead ends: 43 [2022-12-13 20:36:18,947 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 20:36:18,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:36:18,948 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:18,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 88 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 20:36:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 20:36:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-12-13 20:36:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 20:36:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-12-13 20:36:18,954 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 47 [2022-12-13 20:36:18,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:18,954 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-12-13 20:36:18,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 20:36:18,954 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-12-13 20:36:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 20:36:18,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:18,955 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-12-13 20:36:18,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-13 20:36:19,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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)] Forceful destruction successful, exit code 0 [2022-12-13 20:36:19,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:19,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2090804189, now seen corresponding path program 3 times [2022-12-13 20:36:19,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:19,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873075298] [2022-12-13 20:36:19,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 20:36:19,362 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 20:36:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:19,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:19,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:20,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 20:36:20,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:20,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-13 20:36:20,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 20:36:20,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:20,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:20,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873075298] [2022-12-13 20:36:20,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873075298] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:20,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1602370521] [2022-12-13 20:36:20,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 20:36:20,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:20,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 20:36:20,924 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 20:36:20,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-12-13 20:36:22,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 20:36:22,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:22,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 20:36:22,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 20:36:22,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:22,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1602370521] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:22,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:36:22,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-12-13 20:36:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278639334] [2022-12-13 20:36:22,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:36:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:36:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:36:22,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:36:22,782 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 20:36:23,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:23,669 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-12-13 20:36:23,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 20:36:23,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2022-12-13 20:36:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:23,670 INFO L225 Difference]: With dead ends: 50 [2022-12-13 20:36:23,670 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 20:36:23,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:36:23,670 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:23,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 118 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 20:36:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 20:36:23,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-12-13 20:36:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-13 20:36:23,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-12-13 20:36:23,677 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 62 [2022-12-13 20:36:23,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:23,677 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-12-13 20:36:23,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 20:36:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-12-13 20:36:23,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 20:36:23,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:23,679 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-12-13 20:36:23,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:23,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-12-13 20:36:24,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:24,081 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash -497065601, now seen corresponding path program 4 times [2022-12-13 20:36:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:24,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208567637] [2022-12-13 20:36:24,084 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 20:36:24,084 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 20:36:24,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:24,085 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:24,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:24,862 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 20:36:24,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:24,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 2174 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-13 20:36:24,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-12-13 20:36:25,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:25,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:25,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208567637] [2022-12-13 20:36:25,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208567637] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:25,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1948533583] [2022-12-13 20:36:25,701 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 20:36:25,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:25,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 20:36:25,702 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 20:36:25,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-12-13 20:36:27,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 20:36:27,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:27,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2174 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-13 20:36:27,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-12-13 20:36:27,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:27,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1948533583] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:27,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:36:27,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-12-13 20:36:27,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982659988] [2022-12-13 20:36:27,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:36:27,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:36:27,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:27,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:36:27,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:36:27,805 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 20:36:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:29,358 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2022-12-13 20:36:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 20:36:29,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2022-12-13 20:36:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:29,360 INFO L225 Difference]: With dead ends: 57 [2022-12-13 20:36:29,360 INFO L226 Difference]: Without dead ends: 55 [2022-12-13 20:36:29,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-13 20:36:29,361 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:29,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 152 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 20:36:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-13 20:36:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-12-13 20:36:29,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-13 20:36:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2022-12-13 20:36:29,373 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 77 [2022-12-13 20:36:29,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:29,373 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2022-12-13 20:36:29,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 20:36:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2022-12-13 20:36:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 20:36:29,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:29,375 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2022-12-13 20:36:29,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:29,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2022-12-13 20:36:29,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:29,778 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:29,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:29,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1068369757, now seen corresponding path program 5 times [2022-12-13 20:36:29,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858732558] [2022-12-13 20:36:29,783 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 20:36:29,783 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 20:36:29,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:29,784 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:29,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:31,141 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-12-13 20:36:31,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:31,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 59 conjunts are in the unsatisfiable core [2022-12-13 20:36:31,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-13 20:36:31,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:32,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:36:32,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858732558] [2022-12-13 20:36:32,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858732558] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:32,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1213441222] [2022-12-13 20:36:32,115 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 20:36:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 20:36:32,116 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 20:36:32,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-12-13 20:36:37,087 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2022-12-13 20:36:37,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:37,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-13 20:36:37,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:36:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-13 20:36:37,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:36:37,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1213441222] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:36:37,975 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 20:36:37,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2022-12-13 20:36:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63173273] [2022-12-13 20:36:37,975 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 20:36:37,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:36:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:36:37,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:36:37,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:36:37,976 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-13 20:36:39,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:36:39,726 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-12-13 20:36:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:36:39,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 92 [2022-12-13 20:36:39,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:36:39,727 INFO L225 Difference]: With dead ends: 64 [2022-12-13 20:36:39,727 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 20:36:39,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:36:39,728 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:36:39,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 190 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 20:36:39,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 20:36:39,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2022-12-13 20:36:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-13 20:36:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2022-12-13 20:36:39,737 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 92 [2022-12-13 20:36:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:36:39,738 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2022-12-13 20:36:39,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2022-12-13 20:36:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2022-12-13 20:36:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 20:36:39,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:36:39,739 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2022-12-13 20:36:39,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:39,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-12-13 20:36:40,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt [2022-12-13 20:36:40,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:36:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:36:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1031686913, now seen corresponding path program 6 times [2022-12-13 20:36:40,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:36:40,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499389861] [2022-12-13 20:36:40,145 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 20:36:40,145 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 20:36:40,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:36:40,147 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:36:40,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 (14)] Waiting until timeout for monitored process [2022-12-13 20:36:42,562 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-12-13 20:36:42,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:36:42,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 3067 conjuncts, 1204 conjunts are in the unsatisfiable core [2022-12-13 20:36:42,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:39:29,403 WARN L233 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 1382 DAG size of output: 1249 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 20:40:12,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-12-13 20:40:12,630 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-12-13 20:40:12,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:40:12,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499389861] [2022-12-13 20:40:12,631 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 20:40:12,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 (14)] Forceful destruction successful, exit code 0 [2022-12-13 20:40:12,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/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 20:40:12,833 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:898) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:772) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:346) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:306) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 44 more [2022-12-13 20:40:12,837 INFO L158 Benchmark]: Toolchain (without parser) took 242567.34ms. Allocated memory was 83.9MB in the beginning and 308.3MB in the end (delta: 224.4MB). Free memory was 61.4MB in the beginning and 239.4MB in the end (delta: -178.1MB). Peak memory consumption was 201.4MB. Max. memory is 16.1GB. [2022-12-13 20:40:12,838 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:40:12,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.20ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 52.6MB in the end (delta: 8.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-12-13 20:40:12,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.84ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 47.3MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:40:12,838 INFO L158 Benchmark]: Boogie Preprocessor took 45.92ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 43.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:40:12,839 INFO L158 Benchmark]: RCFGBuilder took 805.54ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 44.3MB in the end (delta: -734.4kB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-12-13 20:40:12,839 INFO L158 Benchmark]: TraceAbstraction took 241313.51ms. Allocated memory was 83.9MB in the beginning and 308.3MB in the end (delta: 224.4MB). Free memory was 43.2MB in the beginning and 239.4MB in the end (delta: -196.2MB). Peak memory consumption was 181.2MB. Max. memory is 16.1GB. [2022-12-13 20:40:12,841 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 62.9MB. Free memory was 41.4MB in the beginning and 41.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.20ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 52.6MB in the end (delta: 8.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.84ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 47.3MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.92ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 43.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 805.54ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 44.3MB in the end (delta: -734.4kB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 241313.51ms. Allocated memory was 83.9MB in the beginning and 308.3MB in the end (delta: 224.4MB). Free memory was 43.2MB in the beginning and 239.4MB in the end (delta: -196.2MB). Peak memory consumption was 181.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e21c5423-67d6-4458-9a6c-4729580ac5f1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")