./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:32:13,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:32:13,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:32:13,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:32:13,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:32:13,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:32:13,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:32:13,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:32:13,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:32:13,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:32:13,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:32:13,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:32:13,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:32:13,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:32:13,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:32:13,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:32:13,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:32:13,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:32:13,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:32:13,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:32:13,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:32:13,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:32:13,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:32:13,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:32:13,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:32:13,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:32:13,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:32:13,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:32:13,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:32:13,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:32:13,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:32:13,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:32:13,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:32:13,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:32:13,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:32:13,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:32:13,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:32:13,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:32:13,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:32:13,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:32:13,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:32:13,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:32:13,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:32:13,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:32:13,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:32:13,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:32:13,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:32:13,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:32:13,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:32:13,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:32:13,757 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:32:13,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:32:13,757 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:32:13,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:32:13,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:32:13,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:32:13,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:32:13,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:32:13,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:32:13,758 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:32:13,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:32:13,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:32:13,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:32:13,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:32:13,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:32:13,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:32:13,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:32:13,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:32:13,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:32:13,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:32:13,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:32:13,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:32:13,762 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:32:13,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:32:13,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:32:13,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:32:13,762 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 [2021-12-15 10:32:13,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:32:13,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:32:13,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:32:13,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:32:13,987 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:32:13,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2021-12-15 10:32:14,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2623e09c2/970aaf9b16074396b2bb7e2af9470384/FLAGa847ae149 [2021-12-15 10:32:14,518 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:32:14,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2021-12-15 10:32:14,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2623e09c2/970aaf9b16074396b2bb7e2af9470384/FLAGa847ae149 [2021-12-15 10:32:15,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2623e09c2/970aaf9b16074396b2bb7e2af9470384 [2021-12-15 10:32:15,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:32:15,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:32:15,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:32:15,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:32:15,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:32:15,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33de531d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15, skipping insertion in model container [2021-12-15 10:32:15,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:32:15,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:32:15,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2021-12-15 10:32:15,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:32:15,309 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:32:15,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2021-12-15 10:32:15,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:32:15,405 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:32:15,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15 WrapperNode [2021-12-15 10:32:15,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:32:15,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:32:15,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:32:15,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:32:15,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,453 INFO L137 Inliner]: procedures = 21, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 277 [2021-12-15 10:32:15,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:32:15,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:32:15,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:32:15,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:32:15,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:32:15,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:32:15,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:32:15,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:32:15,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (1/1) ... [2021-12-15 10:32:15,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:32:15,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:32:15,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:32:15,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:32:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:32:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:32:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:32:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:32:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:32:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-12-15 10:32:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-12-15 10:32:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:32:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-12-15 10:32:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-12-15 10:32:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:32:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:32:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:32:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-15 10:32:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:32:15,651 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:32:15,653 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:32:16,018 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:32:16,024 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:32:16,024 INFO L301 CfgBuilder]: Removed 20 assume(true) statements. [2021-12-15 10:32:16,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:16 BoogieIcfgContainer [2021-12-15 10:32:16,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:32:16,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:32:16,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:32:16,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:32:16,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:32:15" (1/3) ... [2021-12-15 10:32:16,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1390f541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:32:16, skipping insertion in model container [2021-12-15 10:32:16,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:15" (2/3) ... [2021-12-15 10:32:16,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1390f541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:32:16, skipping insertion in model container [2021-12-15 10:32:16,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:16" (3/3) ... [2021-12-15 10:32:16,035 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2021-12-15 10:32:16,039 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:32:16,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:32:16,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:32:16,079 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 [2021-12-15 10:32:16,079 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:32:16,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 10:32:16,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:16,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:16,099 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:16,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:16,103 INFO L85 PathProgramCache]: Analyzing trace with hash -233161701, now seen corresponding path program 1 times [2021-12-15 10:32:16,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:32:16,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613970448] [2021-12-15 10:32:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:16,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:32:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:32:16,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:32:16,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613970448] [2021-12-15 10:32:16,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613970448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:16,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:16,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:32:16,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510240048] [2021-12-15 10:32:16,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:16,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:32:16,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:32:16,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:32:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:32:16,337 INFO L87 Difference]: Start difference. First operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-12-15 10:32:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:32:16,383 INFO L93 Difference]: Finished difference Result 204 states and 332 transitions. [2021-12-15 10:32:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:32:16,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) Word has length 15 [2021-12-15 10:32:16,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:32:16,393 INFO L225 Difference]: With dead ends: 204 [2021-12-15 10:32:16,393 INFO L226 Difference]: Without dead ends: 99 [2021-12-15 10:32:16,400 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 [2021-12-15 10:32:16,403 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:32:16,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:32:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-15 10:32:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-12-15 10:32:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2021-12-15 10:32:16,458 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 15 [2021-12-15 10:32:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:32:16,458 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2021-12-15 10:32:16,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-12-15 10:32:16,459 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2021-12-15 10:32:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 10:32:16,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:16,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:16,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:32:16,461 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash -114752879, now seen corresponding path program 1 times [2021-12-15 10:32:16,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:32:16,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888276092] [2021-12-15 10:32:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:16,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:32:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:32:16,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:32:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888276092] [2021-12-15 10:32:16,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888276092] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:16,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:16,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 10:32:16,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584432628] [2021-12-15 10:32:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:16,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 10:32:16,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:32:16,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 10:32:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 10:32:16,582 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:32:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:32:16,619 INFO L93 Difference]: Finished difference Result 187 states and 266 transitions. [2021-12-15 10:32:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 10:32:16,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-15 10:32:16,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:32:16,622 INFO L225 Difference]: With dead ends: 187 [2021-12-15 10:32:16,623 INFO L226 Difference]: Without dead ends: 99 [2021-12-15 10:32:16,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 10:32:16,626 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:32:16,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:32:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-15 10:32:16,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-12-15 10:32:16,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:16,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2021-12-15 10:32:16,637 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 18 [2021-12-15 10:32:16,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:32:16,637 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2021-12-15 10:32:16,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:32:16,638 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2021-12-15 10:32:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-15 10:32:16,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:16,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:16,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:32:16,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2086328612, now seen corresponding path program 1 times [2021-12-15 10:32:16,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:32:16,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444782705] [2021-12-15 10:32:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:16,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:32:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:32:16,790 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 10:32:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:32:16,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 10:32:16,946 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 10:32:16,947 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:32:16,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 10:32:16,951 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-15 10:32:16,953 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:32:17,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:32:17 BoogieIcfgContainer [2021-12-15 10:32:17,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:32:17,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:32:17,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:32:17,017 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:32:17,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:16" (3/4) ... [2021-12-15 10:32:17,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 10:32:17,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:32:17,021 INFO L158 Benchmark]: Toolchain (without parser) took 1998.60ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 56.9MB in the beginning and 81.7MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:32:17,022 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 35.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:32:17,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.41ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 56.8MB in the beginning and 84.3MB in the end (delta: -27.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:32:17,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.88ms. Allocated memory is still 115.3MB. Free memory was 84.3MB in the beginning and 81.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:32:17,030 INFO L158 Benchmark]: Boogie Preprocessor took 49.11ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 79.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:32:17,031 INFO L158 Benchmark]: RCFGBuilder took 522.50ms. Allocated memory is still 115.3MB. Free memory was 79.1MB in the beginning and 56.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 10:32:17,032 INFO L158 Benchmark]: TraceAbstraction took 985.35ms. Allocated memory is still 115.3MB. Free memory was 55.5MB in the beginning and 81.7MB in the end (delta: -26.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-12-15 10:32:17,032 INFO L158 Benchmark]: Witness Printer took 7.07ms. Allocated memory is still 115.3MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:32:17,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 35.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.41ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 56.8MB in the beginning and 84.3MB in the end (delta: -27.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.88ms. Allocated memory is still 115.3MB. Free memory was 84.3MB in the beginning and 81.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.11ms. Allocated memory is still 115.3MB. Free memory was 81.7MB in the beginning and 79.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.50ms. Allocated memory is still 115.3MB. Free memory was 79.1MB in the beginning and 56.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 985.35ms. Allocated memory is still 115.3MB. Free memory was 55.5MB in the beginning and 81.7MB in the end (delta: -26.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Witness Printer took 7.07ms. Allocated memory is still 115.3MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 288]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L278] double x = __VERIFIER_nondet_double(); [L279] double y = -1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \result=10, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, zero_atan2=0] [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, \result=2147483647, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isfinite_double(x)=10, isfinite_double(x) && isinf_double(y)=1, isinf_double(y)=2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != -pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] [L288] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 416 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 283 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-12-15 10:32:17,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:32:18,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:32:18,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:32:18,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:32:18,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:32:18,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:32:18,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:32:18,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:32:18,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:32:18,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:32:18,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:32:18,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:32:18,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:32:19,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:32:19,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:32:19,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:32:19,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:32:19,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:32:19,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:32:19,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:32:19,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:32:19,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:32:19,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:32:19,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:32:19,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:32:19,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:32:19,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:32:19,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:32:19,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:32:19,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:32:19,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:32:19,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:32:19,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:32:19,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:32:19,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:32:19,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:32:19,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:32:19,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:32:19,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:32:19,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:32:19,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:32:19,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:32:19,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:32:19,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:32:19,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:32:19,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:32:19,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:32:19,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:32:19,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:32:19,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:32:19,080 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:32:19,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:32:19,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:32:19,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:32:19,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:32:19,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:32:19,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:32:19,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:32:19,082 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:32:19,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:32:19,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:32:19,083 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:32:19,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:32:19,083 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:32:19,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:32:19,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:32:19,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:32:19,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:32:19,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:32:19,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:32:19,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:32:19,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:32:19,090 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:32:19,091 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:32:19,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:32:19,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:32:19,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:32:19,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:32:19,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:32:19,092 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d0560b101a1a446649456c356a26c615f3850e7b7d16baa2e50b6bf6dee850 [2021-12-15 10:32:19,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:32:19,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:32:19,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:32:19,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:32:19,379 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:32:19,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2021-12-15 10:32:19,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/177ad509f/bf8b47f66cd54a14ad09c03bc4655a9c/FLAG6613051fc [2021-12-15 10:32:19,905 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:32:19,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2021-12-15 10:32:19,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/177ad509f/bf8b47f66cd54a14ad09c03bc4655a9c/FLAG6613051fc [2021-12-15 10:32:19,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/177ad509f/bf8b47f66cd54a14ad09c03bc4655a9c [2021-12-15 10:32:19,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:32:19,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:32:19,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:32:19,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:32:19,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:32:19,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:32:19" (1/1) ... [2021-12-15 10:32:19,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cbf4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:19, skipping insertion in model container [2021-12-15 10:32:19,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:32:19" (1/1) ... [2021-12-15 10:32:19,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:32:19,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:32:20,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2021-12-15 10:32:20,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:32:20,176 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:32:20,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c[6891,6904] [2021-12-15 10:32:20,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:32:20,249 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:32:20,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20 WrapperNode [2021-12-15 10:32:20,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:32:20,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:32:20,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:32:20,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:32:20,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,297 INFO L137 Inliner]: procedures = 24, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2021-12-15 10:32:20,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:32:20,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:32:20,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:32:20,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:32:20,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:32:20,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:32:20,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:32:20,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:32:20,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (1/1) ... [2021-12-15 10:32:20,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:32:20,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:32:20,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:32:20,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:32:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:32:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-15 10:32:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-15 10:32:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:32:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:32:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-12-15 10:32:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-12-15 10:32:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-15 10:32:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-12-15 10:32:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-12-15 10:32:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:32:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:32:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:32:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:32:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:32:20,562 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:32:20,583 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:32:42,337 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:32:42,344 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:32:42,345 INFO L301 CfgBuilder]: Removed 20 assume(true) statements. [2021-12-15 10:32:42,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:42 BoogieIcfgContainer [2021-12-15 10:32:42,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:32:42,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:32:42,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:32:42,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:32:42,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:32:19" (1/3) ... [2021-12-15 10:32:42,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf8152c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:32:42, skipping insertion in model container [2021-12-15 10:32:42,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:32:20" (2/3) ... [2021-12-15 10:32:42,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf8152c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:32:42, skipping insertion in model container [2021-12-15 10:32:42,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:32:42" (3/3) ... [2021-12-15 10:32:42,361 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2021-12-15 10:32:42,365 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:32:42,365 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:32:42,405 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:32:42,410 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 [2021-12-15 10:32:42,410 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:32:42,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 10:32:42,427 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:42,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:42,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:42,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash -233161701, now seen corresponding path program 1 times [2021-12-15 10:32:42,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:32:42,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171989709] [2021-12-15 10:32:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:42,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:32:42,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:32:42,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:32:42,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:32:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:42,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:32:42,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:32:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:32:43,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:32:43,225 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:32:43,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171989709] [2021-12-15 10:32:43,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171989709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:43,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:43,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:32:43,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794846051] [2021-12-15 10:32:43,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:43,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:32:43,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:32:43,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:32:43,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:32:43,276 INFO L87 Difference]: Start difference. First operand has 103 states, 95 states have (on average 1.6526315789473685) internal successors, (157), 96 states have internal predecessors, (157), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-12-15 10:32:43,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:32:43,325 INFO L93 Difference]: Finished difference Result 204 states and 332 transitions. [2021-12-15 10:32:43,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:32:43,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) Word has length 15 [2021-12-15 10:32:43,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:32:43,336 INFO L225 Difference]: With dead ends: 204 [2021-12-15 10:32:43,336 INFO L226 Difference]: Without dead ends: 99 [2021-12-15 10:32:43,345 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 [2021-12-15 10:32:43,348 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:32:43,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:32:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-15 10:32:43,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-12-15 10:32:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 139 transitions. [2021-12-15 10:32:43,379 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 139 transitions. Word has length 15 [2021-12-15 10:32:43,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:32:43,379 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 139 transitions. [2021-12-15 10:32:43,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-12-15 10:32:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 139 transitions. [2021-12-15 10:32:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 10:32:43,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:43,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:43,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 10:32:43,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:32:43,600 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:43,601 INFO L85 PathProgramCache]: Analyzing trace with hash -114752879, now seen corresponding path program 1 times [2021-12-15 10:32:43,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:32:43,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544125679] [2021-12-15 10:32:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:43,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:32:43,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:32:43,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:32:43,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 10:32:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:43,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 10:32:43,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:32:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:32:44,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:32:44,495 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:32:44,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544125679] [2021-12-15 10:32:44,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544125679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:32:44,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:32:44,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 10:32:44,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412147414] [2021-12-15 10:32:44,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:32:44,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 10:32:44,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:32:44,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 10:32:44,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 10:32:44,498 INFO L87 Difference]: Start difference. First operand 99 states and 139 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:32:44,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:32:44,711 INFO L93 Difference]: Finished difference Result 187 states and 266 transitions. [2021-12-15 10:32:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 10:32:44,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-15 10:32:44,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:32:44,715 INFO L225 Difference]: With dead ends: 187 [2021-12-15 10:32:44,715 INFO L226 Difference]: Without dead ends: 99 [2021-12-15 10:32:44,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 10:32:44,717 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 10:32:44,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 10:32:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-15 10:32:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-12-15 10:32:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:32:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2021-12-15 10:32:44,727 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 18 [2021-12-15 10:32:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:32:44,727 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2021-12-15 10:32:44,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:32:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2021-12-15 10:32:44,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-15 10:32:44,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:32:44,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:32:44,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-15 10:32:44,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:32:44,944 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:32:44,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:32:44,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2086328612, now seen corresponding path program 1 times [2021-12-15 10:32:44,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:32:44,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699335510] [2021-12-15 10:32:44,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:32:44,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:32:44,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:32:44,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:32:44,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 10:32:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:32:45,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 38 conjunts are in the unsatisfiable core [2021-12-15 10:32:45,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:32:46,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2021-12-15 10:32:54,565 INFO L354 Elim1Store]: treesize reduction 14, result has 44.0 percent of original size [2021-12-15 10:32:54,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 41 [2021-12-15 10:32:59,307 INFO L354 Elim1Store]: treesize reduction 14, result has 44.0 percent of original size [2021-12-15 10:32:59,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31 [2021-12-15 10:33:04,658 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 10:33:04,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-12-15 10:33:05,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-12-15 10:33:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:33:12,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:33:12,953 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:33:12,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699335510] [2021-12-15 10:33:12,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699335510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:33:12,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:33:12,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-15 10:33:12,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716181571] [2021-12-15 10:33:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:33:12,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-15 10:33:12,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:33:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-15 10:33:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-15 10:33:12,955 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:33:12,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:33:12,985 INFO L93 Difference]: Finished difference Result 103 states and 141 transitions. [2021-12-15 10:33:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 10:33:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-15 10:33:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:33:12,995 INFO L225 Difference]: With dead ends: 103 [2021-12-15 10:33:12,995 INFO L226 Difference]: Without dead ends: 99 [2021-12-15 10:33:12,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-15 10:33:12,997 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:33:12,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1377 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 139 Unchecked, 0.0s Time] [2021-12-15 10:33:12,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-15 10:33:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-12-15 10:33:13,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 92 states have (on average 1.4021739130434783) internal successors, (129), 92 states have internal predecessors, (129), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:33:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 137 transitions. [2021-12-15 10:33:13,006 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 137 transitions. Word has length 22 [2021-12-15 10:33:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:33:13,007 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 137 transitions. [2021-12-15 10:33:13,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:33:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 137 transitions. [2021-12-15 10:33:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-15 10:33:13,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:33:13,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:33:13,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 10:33:13,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:33:13,214 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:33:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:33:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1752843547, now seen corresponding path program 1 times [2021-12-15 10:33:13,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:33:13,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525644157] [2021-12-15 10:33:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:33:13,216 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:33:13,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:33:13,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:33:13,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 10:33:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:33:13,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:33:13,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:33:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:33:16,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:33:16,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:33:16,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525644157] [2021-12-15 10:33:16,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525644157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:33:16,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:33:16,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 10:33:16,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768546929] [2021-12-15 10:33:16,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:33:16,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 10:33:16,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:33:16,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 10:33:16,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:33:16,567 INFO L87 Difference]: Start difference. First operand 99 states and 137 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2021-12-15 10:33:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:33:16,576 INFO L93 Difference]: Finished difference Result 173 states and 241 transitions. [2021-12-15 10:33:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 10:33:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 27 [2021-12-15 10:33:16,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:33:16,577 INFO L225 Difference]: With dead ends: 173 [2021-12-15 10:33:16,577 INFO L226 Difference]: Without dead ends: 97 [2021-12-15 10:33:16,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:33:16,579 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 5 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:33:16,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 586 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2021-12-15 10:33:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-12-15 10:33:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2021-12-15 10:33:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.372093023255814) internal successors, (118), 86 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 10:33:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 126 transitions. [2021-12-15 10:33:16,599 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 126 transitions. Word has length 27 [2021-12-15 10:33:16,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:33:16,600 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 126 transitions. [2021-12-15 10:33:16,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2021-12-15 10:33:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 126 transitions. [2021-12-15 10:33:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-15 10:33:16,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:33:16,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:33:16,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 10:33:16,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:33:16,820 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:33:16,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:33:16,820 INFO L85 PathProgramCache]: Analyzing trace with hash -144061543, now seen corresponding path program 1 times [2021-12-15 10:33:16,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:33:16,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466799177] [2021-12-15 10:33:16,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:33:16,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:33:16,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:33:16,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:33:16,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 10:33:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:33:17,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 10:33:17,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:33:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:33:24,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:33:24,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:33:24,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466799177] [2021-12-15 10:33:24,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466799177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:33:24,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:33:24,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:33:24,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923166763] [2021-12-15 10:33:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:33:24,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 10:33:24,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:33:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 10:33:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:33:24,524 INFO L87 Difference]: Start difference. First operand 93 states and 126 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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)