./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:11:39,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:11:39,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:11:39,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:11:39,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:11:39,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:11:39,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:11:39,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:11:39,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:11:39,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:11:39,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:11:39,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:11:39,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:11:39,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:11:39,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:11:39,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:11:39,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:11:39,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:11:39,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:11:39,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:11:39,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:11:39,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:11:39,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:11:39,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:11:39,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:11:39,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:11:39,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:11:39,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:11:39,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:11:39,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:11:39,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:11:39,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:11:39,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:11:39,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:11:39,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:11:39,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:11:39,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:11:39,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:11:39,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:11:39,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:11:39,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:11:39,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:11:39,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:11:39,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:11:39,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:11:39,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:11:39,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:11:39,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:11:39,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:11:39,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:11:39,671 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:11:39,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:11:39,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:11:39,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:11:39,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:11:39,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:11:39,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:11:39,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:11:39,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:11:39,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:11:39,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:11:39,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:11:39,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:11:39,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:11:39,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:11:39,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:11:39,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:11:39,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:11:39,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:11:39,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:11:39,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:11:39,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:11:39,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:11:39,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:11:39,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:11:39,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:11:39,679 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 [2021-11-13 18:11:39,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:11:39,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:11:39,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:11:39,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:11:39,976 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:11:39,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2021-11-13 18:11:40,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/a12251b3e/a4feb3bd50f34d20bcd0ca77a1252429/FLAG8054a8fa4 [2021-11-13 18:11:40,518 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:11:40,518 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/sv-benchmarks/c/float-benchs/zonotope_tight.c [2021-11-13 18:11:40,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/a12251b3e/a4feb3bd50f34d20bcd0ca77a1252429/FLAG8054a8fa4 [2021-11-13 18:11:40,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/a12251b3e/a4feb3bd50f34d20bcd0ca77a1252429 [2021-11-13 18:11:40,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:11:40,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:11:40,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:11:40,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:11:40,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:11:40,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:11:40" (1/1) ... [2021-11-13 18:11:40,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405fbc1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:40, skipping insertion in model container [2021-11-13 18:11:40,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:11:40" (1/1) ... [2021-11-13 18:11:40,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:11:40,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:11:41,150 WARN L228 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_3dd498c5-c05e-4ecb-b993-d69619b79cbc/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2021-11-13 18:11:41,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:11:41,182 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:11:41,199 WARN L228 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_3dd498c5-c05e-4ecb-b993-d69619b79cbc/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2021-11-13 18:11:41,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:11:41,220 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:11:41,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41 WrapperNode [2021-11-13 18:11:41,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:11:41,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:11:41,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:11:41,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:11:41,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:11:41,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:11:41,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:11:41,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:11:41,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:11:41,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:11:41,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:11:41,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:11:41,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (1/1) ... [2021-11-13 18:11:41,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:11:41,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:11:41,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:11:41,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:11:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:11:41,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:11:41,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:11:41,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:11:41,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:11:41,625 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:11:41,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:11:41 BoogieIcfgContainer [2021-11-13 18:11:41,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:11:41,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:11:41,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:11:41,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:11:41,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:11:40" (1/3) ... [2021-11-13 18:11:41,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276e0d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:11:41, skipping insertion in model container [2021-11-13 18:11:41,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:41" (2/3) ... [2021-11-13 18:11:41,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276e0d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:11:41, skipping insertion in model container [2021-11-13 18:11:41,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:11:41" (3/3) ... [2021-11-13 18:11:41,642 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2021-11-13 18:11:41,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:11:41,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:11:41,720 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:11:41,731 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:11:41,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:11:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:11:41,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:11:41,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:11:41,763 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:11:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:11:41,768 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-11-13 18:11:41,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:11:41,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921882807] [2021-11-13 18:11:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:11:41,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:11:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:11:41,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:11:41,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:11:41,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921882807] [2021-11-13 18:11:41,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921882807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:11:41,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:11:41,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:11:41,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731681581] [2021-11-13 18:11:41,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:11:41,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:11:41,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:11:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:11:41,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:11:41,989 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:11:42,002 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-13 18:11:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:11:42,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 18:11:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:11:42,011 INFO L225 Difference]: With dead ends: 23 [2021-11-13 18:11:42,011 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 18:11:42,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:11:42,018 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:11:42,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:11:42,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 18:11:42,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 18:11:42,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-13 18:11:42,066 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-11-13 18:11:42,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:11:42,066 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-13 18:11:42,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-13 18:11:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:11:42,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:11:42,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:11:42,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:11:42,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:11:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:11:42,069 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-11-13 18:11:42,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:11:42,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963096063] [2021-11-13 18:11:42,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:11:42,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:11:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:11:42,113 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:11:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:11:42,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:11:42,188 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:11:42,191 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:11:42,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:11:42,199 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 18:11:42,202 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:11:42,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:11:42 BoogieIcfgContainer [2021-11-13 18:11:42,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:11:42,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:11:42,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:11:42,230 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:11:42,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:11:41" (3/4) ... [2021-11-13 18:11:42,235 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:11:42,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:11:42,237 INFO L158 Benchmark]: Toolchain (without parser) took 1317.54ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 49.6MB in the beginning and 45.5MB in the end (delta: 4.1MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2021-11-13 18:11:42,238 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 52.0MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:11:42,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.77ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 49.4MB in the beginning and 80.9MB in the end (delta: -31.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:11:42,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.38ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:11:42,246 INFO L158 Benchmark]: Boogie Preprocessor took 37.40ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:11:42,247 INFO L158 Benchmark]: RCFGBuilder took 328.47ms. Allocated memory is still 104.9MB. Free memory was 78.5MB in the beginning and 69.6MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:11:42,248 INFO L158 Benchmark]: TraceAbstraction took 599.74ms. Allocated memory is still 104.9MB. Free memory was 69.1MB in the beginning and 46.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 18:11:42,248 INFO L158 Benchmark]: Witness Printer took 6.48ms. Allocated memory is still 104.9MB. Free memory was 46.0MB in the beginning and 45.5MB in the end (delta: 515.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:11:42,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 52.0MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.77ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 49.4MB in the beginning and 80.9MB in the end (delta: -31.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.38ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.40ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 328.47ms. Allocated memory is still 104.9MB. Free memory was 78.5MB in the beginning and 69.6MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 599.74ms. Allocated memory is still 104.9MB. Free memory was 69.1MB in the beginning and 46.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.48ms. Allocated memory is still 104.9MB. Free memory was 46.0MB in the beginning and 45.5MB in the end (delta: 515.2kB). 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 4.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.00ms 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, 13 mSDtfsCounter, 0 mSolverCounterSat, 0.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 18:11:42,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:11:44,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:11:44,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:11:44,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:11:44,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:11:44,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:11:44,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:11:44,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:11:44,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:11:44,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:11:44,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:11:44,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:11:44,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:11:44,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:11:44,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:11:44,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:11:44,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:11:44,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:11:44,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:11:44,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:11:44,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:11:44,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:11:44,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:11:44,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:11:44,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:11:44,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:11:44,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:11:44,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:11:44,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:11:44,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:11:44,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:11:44,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:11:44,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:11:44,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:11:44,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:11:44,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:11:44,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:11:44,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:11:44,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:11:44,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:11:44,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:11:44,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:11:44,893 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:11:44,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:11:44,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:11:44,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:11:44,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:11:44,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:11:44,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:11:44,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:11:44,898 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:11:44,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:11:44,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:11:44,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:11:44,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:11:44,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:11:44,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:11:44,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:11:44,901 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:11:44,901 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:11:44,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:11:44,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:11:44,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:11:44,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:11:44,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:11:44,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:11:44,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:11:44,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:11:44,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:11:44,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:11:44,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:11:44,904 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:11:44,904 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:11:44,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:11:44,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:11:44,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:11:44,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:11:44,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:11:44,906 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18dbda2434c7285b61a25f8bfa64cf4514b67a5c7ac1b7a618b1696469e2b1b4 [2021-11-13 18:11:45,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:11:45,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:11:45,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:11:45,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:11:45,314 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:11:45,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/float-benchs/zonotope_tight.c [2021-11-13 18:11:45,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/edcd7ad5e/13bacb683cdd482d9321fdce7cc81eaa/FLAG1d40fb434 [2021-11-13 18:11:45,852 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:11:45,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/sv-benchmarks/c/float-benchs/zonotope_tight.c [2021-11-13 18:11:45,858 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/edcd7ad5e/13bacb683cdd482d9321fdce7cc81eaa/FLAG1d40fb434 [2021-11-13 18:11:46,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/data/edcd7ad5e/13bacb683cdd482d9321fdce7cc81eaa [2021-11-13 18:11:46,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:11:46,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:11:46,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:11:46,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:11:46,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:11:46,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d95a4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46, skipping insertion in model container [2021-11-13 18:11:46,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:11:46,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:11:46,438 WARN L228 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_3dd498c5-c05e-4ecb-b993-d69619b79cbc/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2021-11-13 18:11:46,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:11:46,476 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:11:46,489 WARN L228 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_3dd498c5-c05e-4ecb-b993-d69619b79cbc/sv-benchmarks/c/float-benchs/zonotope_tight.c[577,590] [2021-11-13 18:11:46,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:11:46,508 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:11:46,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46 WrapperNode [2021-11-13 18:11:46,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:11:46,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:11:46,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:11:46,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:11:46,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:11:46,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:11:46,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:11:46,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:11:46,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:11:46,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:11:46,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:11:46,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:11:46,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (1/1) ... [2021-11-13 18:11:46,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:11:46,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:11:46,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:11:46,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:11:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:11:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:11:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:11:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:11:50,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:11:50,088 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:11:50,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:11:50 BoogieIcfgContainer [2021-11-13 18:11:50,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:11:50,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:11:50,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:11:50,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:11:50,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:11:46" (1/3) ... [2021-11-13 18:11:50,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6dade6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:11:50, skipping insertion in model container [2021-11-13 18:11:50,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:11:46" (2/3) ... [2021-11-13 18:11:50,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6dade6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:11:50, skipping insertion in model container [2021-11-13 18:11:50,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:11:50" (3/3) ... [2021-11-13 18:11:50,105 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_tight.c [2021-11-13 18:11:50,113 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:11:50,113 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:11:50,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:11:50,178 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:11:50,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:11:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:50,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:11:50,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:11:50,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:11:50,210 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:11:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:11:50,216 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-11-13 18:11:50,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:11:50,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797146905] [2021-11-13 18:11:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:11:50,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:11:50,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:11:50,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:11:50,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:11:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:11:50,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 18:11:50,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:11:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:11:50,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:11:50,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:11:50,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:11:50,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797146905] [2021-11-13 18:11:50,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797146905] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:11:50,883 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:11:50,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:11:50,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970555404] [2021-11-13 18:11:50,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:11:50,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:11:50,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:11:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:11:50,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:11:50,918 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:11:50,930 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-13 18:11:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:11:50,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 18:11:50,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:11:50,940 INFO L225 Difference]: With dead ends: 23 [2021-11-13 18:11:50,941 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 18:11:50,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:11:50,947 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:11:50,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.31ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:11:50,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 18:11:50,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 18:11:50,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-13 18:11:50,979 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-11-13 18:11:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:11:50,979 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-13 18:11:50,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:11:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-13 18:11:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:11:50,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:11:50,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:11:51,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 18:11:51,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:11:51,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:11:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:11:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-11-13 18:11:51,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:11:51,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109681012] [2021-11-13 18:11:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:11:51,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:11:51,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:11:51,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:11:51,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:11:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:11:51,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:11:51,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:12:18,072 WARN L227 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:13:28,292 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (let ((.cse0 (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse0) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse0)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2021-11-13 18:13:30,367 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (let ((.cse0 (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse0) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse0)))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2021-11-13 18:13:45,899 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) is different from false [2021-11-13 18:13:47,972 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) is different from true [2021-11-13 18:13:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:13:47,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:14:01,380 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)))) is different from false [2021-11-13 18:14:03,487 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)))) is different from true [2021-11-13 18:14:22,305 WARN L838 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0))))) is different from false [2021-11-13 18:14:24,422 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0))))) is different from true [2021-11-13 18:15:03,798 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) is different from false [2021-11-13 18:15:05,909 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) is different from true [2021-11-13 18:15:05,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:15:05,909 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:15:05,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109681012] [2021-11-13 18:15:05,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109681012] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:15:05,910 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:15:05,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-13 18:15:05,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645587765] [2021-11-13 18:15:05,910 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:15:05,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:15:05,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:15:05,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:15:05,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=36, Unknown=14, NotChecked=80, Total=156 [2021-11-13 18:15:05,913 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:15:08,047 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:15:10,157 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_7| .cse0) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 11 53))) (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_7| .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-13 18:15:12,269 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (let ((.cse1 (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse3)) (.cse2 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (or (and .cse0 (or (not .cse1) (not .cse2))) (and .cse1 .cse2 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (or .cse0 (let ((.cse4 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse3))) (and (fp.geq .cse4 (_ +zero 11 53)) (fp.leq .cse4 ((_ to_fp 11 53) c_currentRoundingMode 4.0))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-13 18:15:15,432 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq |c_ULTIMATE.start_main_~x~0#1| .cse1) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2021-11-13 18:15:40,430 WARN L227 SmtUtils]: Spent 21.18s on a formula simplification. DAG size of input: 19 DAG size of output: 18 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:15:46,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:15:46,904 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-11-13 18:15:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:15:46,905 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 18:15:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:15:46,905 INFO L225 Difference]: With dead ends: 13 [2021-11-13 18:15:46,905 INFO L226 Difference]: Without dead ends: 9 [2021-11-13 18:15:46,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 80.8s TimeCoverageRelationStatistics Valid=40, Invalid=63, Unknown=19, NotChecked=184, Total=306 [2021-11-13 18:15:46,908 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 58.36ms IncrementalHoareTripleChecker+Time [2021-11-13 18:15:46,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 25 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 21 Unchecked, 58.36ms Time] [2021-11-13 18:15:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-13 18:15:46,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-13 18:15:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:15:46,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-13 18:15:46,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-11-13 18:15:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:15:46,911 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-13 18:15:46,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:15:46,912 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-13 18:15:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 18:15:46,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:15:46,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:15:46,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:15:47,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:15:47,113 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:15:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:15:47,114 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2021-11-13 18:15:47,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:15:47,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106905995] [2021-11-13 18:15:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:15:47,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:15:47,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:15:47,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:15:47,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:15:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:15:47,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 18:15:47,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:16:07,309 WARN L227 SmtUtils]: Spent 9.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:16:25,961 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:18:10,279 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2021-11-13 18:18:12,319 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2021-11-13 18:18:32,733 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2021-11-13 18:18:34,773 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2021-11-13 18:18:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:18:34,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:18:49,120 WARN L860 $PredicateComparison]: unable to prove that (or (fp.geq |c_ULTIMATE.start_main_~y~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0))) is different from true [2021-11-13 18:18:59,907 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-11-13 18:19:14,728 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-11-13 18:19:33,559 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2021-11-13 18:19:35,615 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2021-11-13 18:19:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:19:35,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:19:35,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106905995] [2021-11-13 18:19:35,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106905995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:35,617 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:35,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-13 18:19:35,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740306742] [2021-11-13 18:19:35,617 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:35,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 18:19:35,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:19:35,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 18:19:35,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=42, Unknown=11, NotChecked=126, Total=210 [2021-11-13 18:19:35,619 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:19:37,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:39,435 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:19:41,492 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~x~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~x~0#1_8| |v_ULTIMATE.start_main_~x~0#1_8|))) (or (not (fp.leq |v_ULTIMATE.start_main_~x~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (not (fp.geq |v_ULTIMATE.start_main_~x~0#1_8| (_ +zero 11 53))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~x~0#1_8|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-13 18:19:43,549 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) (and (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or .cse0 (fp.leq (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse1 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (let ((.cse2 (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (.cse3 (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)))) (or (and .cse0 (or (not .cse2) (not .cse3))) (and .cse2 .cse3 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-11-13 18:19:45,917 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:19:47,971 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~x~0#1|))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (fp.geq (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (fp.leq |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |c_ULTIMATE.start_main_~x~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-13 18:20:35,841 WARN L227 SmtUtils]: Spent 33.02s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 18:20:37,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:40,072 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq |c_ULTIMATE.start_main_~y~0#1| ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (= (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) |c_ULTIMATE.start_main_~y~0#1|) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (fp.geq |c_ULTIMATE.start_main_~y~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-13 18:20:42,136 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (not (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))) is different from false [2021-11-13 18:20:42,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:42,142 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-11-13 18:20:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:20:42,142 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 18:20:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:42,143 INFO L225 Difference]: With dead ends: 9 [2021-11-13 18:20:42,143 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:20:42,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 100.1s TimeCoverageRelationStatistics Valid=46, Invalid=51, Unknown=23, NotChecked=300, Total=420 [2021-11-13 18:20:42,145 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3733.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 3893.61ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:42,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.29ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 10 Unchecked, 3893.61ms Time] [2021-11-13 18:20:42,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:20:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:20:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:20:42,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:20:42,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-13 18:20:42,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:42,149 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:20:42,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:20:42,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:20:42,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:20:42,153 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:20:42,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-13 18:20:42,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:20:42,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 18:20:42,384 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 18:20:42,384 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-11-13 18:20:42,384 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 18:20:42,384 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 18:20:42,385 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 18:20:42,385 INFO L861 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: true [2021-11-13 18:20:42,385 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2021-11-13 18:20:42,385 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-13 18:20:42,386 INFO L858 garLoopResultBuilder]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2021-11-13 18:20:42,386 INFO L858 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2021-11-13 18:20:42,386 INFO L858 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-11-13 18:20:42,386 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-11-13 18:20:42,386 INFO L861 garLoopResultBuilder]: At program point L14-3(line 14) the Hoare annotation is: true [2021-11-13 18:20:42,391 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 18:20:42,393 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:20:42,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:20:42 BoogieIcfgContainer [2021-11-13 18:20:42,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:20:42,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:20:42,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:20:42,402 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:20:42,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:11:50" (3/4) ... [2021-11-13 18:20:42,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:20:42,415 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-13 18:20:42,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 18:20:42,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:20:42,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:20:42,450 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:20:42,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:20:42,452 INFO L158 Benchmark]: Toolchain (without parser) took 536201.72ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 43.5MB in the beginning and 49.2MB in the end (delta: -5.6MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-11-13 18:20:42,452 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 50.3MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:20:42,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.36ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 33.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:20:42,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.32ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 49.7MB in the end (delta: -16.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:20:42,453 INFO L158 Benchmark]: Boogie Preprocessor took 45.50ms. Allocated memory is still 67.1MB. Free memory was 49.7MB in the beginning and 48.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:20:42,454 INFO L158 Benchmark]: RCFGBuilder took 3479.25ms. Allocated memory is still 67.1MB. Free memory was 48.4MB in the beginning and 39.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:20:42,455 INFO L158 Benchmark]: TraceAbstraction took 532308.70ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 38.6MB in the beginning and 51.2MB in the end (delta: -12.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-11-13 18:20:42,455 INFO L158 Benchmark]: Witness Printer took 49.63ms. Allocated memory is still 81.8MB. Free memory was 51.2MB in the beginning and 49.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:20:42,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 50.3MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.36ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 33.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.32ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 49.7MB in the end (delta: -16.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.50ms. Allocated memory is still 67.1MB. Free memory was 49.7MB in the beginning and 48.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 3479.25ms. Allocated memory is still 67.1MB. Free memory was 48.4MB in the beginning and 39.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 532308.70ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 38.6MB in the beginning and 51.2MB in the end (delta: -12.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 49.63ms. Allocated memory is still 81.8MB. Free memory was 51.2MB in the beginning and 49.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 532.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 107.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 3951.97ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 3788.51ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 31 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 8 mSolverCounterSat, 1.24ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 180.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 422.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 8 QuantifiedInterpolants, 574 SizeOfPredicates, 14 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-13 18:20:42,686 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-13 18:20:42,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dd498c5-c05e-4ecb-b993-d69619b79cbc/bin/uautomizer-YU5uOKAj3y/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 Writing output log to file Ultimate.log Result: TRUE