./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-benchs/sin_interpolated_negation.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 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:51:08,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:51:08,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:51:08,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:51:08,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:51:08,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:51:08,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:51:08,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:51:08,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:51:08,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:51:08,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:51:08,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:51:08,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:51:08,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:51:08,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:51:08,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:51:08,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:51:08,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:51:08,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:51:08,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:51:08,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:51:08,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:51:08,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:51:08,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:51:08,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:51:08,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:51:08,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:51:08,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:51:08,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:51:08,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:51:08,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:51:08,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:51:08,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:51:08,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:51:08,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:51:08,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:51:08,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:51:08,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:51:08,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:51:08,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:51:08,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:51:08,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:51:08,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:51:08,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:51:08,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:51:08,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:51:08,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:51:08,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:51:08,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:51:08,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:51:08,355 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:51:08,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:51:08,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:51:08,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:51:08,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:51:08,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:51:08,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:51:08,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:51:08,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:51:08,357 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:51:08,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:51:08,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:51:08,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:51:08,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:51:08,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:51:08,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:51:08,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:08,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:51:08,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:51:08,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:51:08,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:51:08,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:51:08,359 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:51:08,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:51:08,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:51:08,360 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:51:08,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 [2021-12-21 11:51:08,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:51:08,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:51:08,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:51:08,574 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:51:08,574 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:51:08,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-12-21 11:51:08,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb722c0c6/f826a46a92f74f27b68dc83faa95c56f/FLAGb7011af52 [2021-12-21 11:51:08,987 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:51:08,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-12-21 11:51:08,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb722c0c6/f826a46a92f74f27b68dc83faa95c56f/FLAGb7011af52 [2021-12-21 11:51:09,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb722c0c6/f826a46a92f74f27b68dc83faa95c56f [2021-12-21 11:51:09,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:51:09,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:51:09,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:09,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:51:09,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:51:09,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b26ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09, skipping insertion in model container [2021-12-21 11:51:09,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:51:09,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:51:09,571 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-benchs/sin_interpolated_negation.c[684,697] [2021-12-21 11:51:09,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:09,656 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:51:09,664 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-benchs/sin_interpolated_negation.c[684,697] [2021-12-21 11:51:09,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:09,718 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:51:09,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09 WrapperNode [2021-12-21 11:51:09,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:09,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:09,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:51:09,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:51:09,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,794 INFO L137 Inliner]: procedures = 21, calls = 382, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 405 [2021-12-21 11:51:09,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:09,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:51:09,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:51:09,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:51:09,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:51:09,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:51:09,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:51:09,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:51:09,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (1/1) ... [2021-12-21 11:51:09,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:09,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:51:09,880 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) [2021-12-21 11:51:09,883 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 [2021-12-21 11:51:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:51:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-12-21 11:51:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-12-21 11:51:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:51:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-12-21 11:51:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-12-21 11:51:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-12-21 11:51:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-12-21 11:51:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:51:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure SIN [2021-12-21 11:51:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN [2021-12-21 11:51:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:51:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:51:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-21 11:51:09,964 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:51:09,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:51:10,191 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:51:10,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:51:10,196 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 11:51:10,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:10 BoogieIcfgContainer [2021-12-21 11:51:10,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:51:10,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:51:10,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:51:10,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:51:10,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:51:09" (1/3) ... [2021-12-21 11:51:10,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b91b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:10, skipping insertion in model container [2021-12-21 11:51:10,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:09" (2/3) ... [2021-12-21 11:51:10,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b91b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:10, skipping insertion in model container [2021-12-21 11:51:10,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:10" (3/3) ... [2021-12-21 11:51:10,203 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_negation.c [2021-12-21 11:51:10,207 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:51:10,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:51:10,237 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:51:10,242 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 [2021-12-21 11:51:10,242 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:51:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-21 11:51:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-21 11:51:10,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:10,257 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:10,258 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:10,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:10,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1228543863, now seen corresponding path program 1 times [2021-12-21 11:51:10,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:51:10,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106476458] [2021-12-21 11:51:10,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:10,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:51:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 11:51:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-21 11:51:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 11:51:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-21 11:51:10,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:51:10,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106476458] [2021-12-21 11:51:10,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106476458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:51:10,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:51:10,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:51:10,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042992917] [2021-12-21 11:51:10,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:51:10,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:51:10,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:51:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:51:10,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:51:10,541 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-21 11:51:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:51:10,556 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2021-12-21 11:51:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:51:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2021-12-21 11:51:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:51:10,563 INFO L225 Difference]: With dead ends: 86 [2021-12-21 11:51:10,563 INFO L226 Difference]: Without dead ends: 40 [2021-12-21 11:51:10,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:51:10,570 INFO L933 BasicCegarLoop]: 51 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, 51 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 [2021-12-21 11:51:10,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:51:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-21 11:51:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-21 11:51:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-21 11:51:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2021-12-21 11:51:10,606 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 52 [2021-12-21 11:51:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:51:10,606 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2021-12-21 11:51:10,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-21 11:51:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2021-12-21 11:51:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-21 11:51:10,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:10,611 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:10,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:51:10,612 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1021623079, now seen corresponding path program 1 times [2021-12-21 11:51:10,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:51:10,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971532835] [2021-12-21 11:51:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:10,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:51:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:51:10,742 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:51:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:51:10,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:51:10,824 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:51:10,826 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:51:10,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:51:10,833 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:51:10,835 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:51:10,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:51:10 BoogieIcfgContainer [2021-12-21 11:51:10,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:51:10,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:51:10,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:51:10,891 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:51:10,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:10" (3/4) ... [2021-12-21 11:51:10,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:51:10,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:51:10,895 INFO L158 Benchmark]: Toolchain (without parser) took 1493.56ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 71.8MB in the beginning and 81.0MB in the end (delta: -9.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-12-21 11:51:10,896 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 35.2MB in the beginning and 35.2MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:51:10,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.05ms. Allocated memory is still 102.8MB. Free memory was 71.7MB in the beginning and 68.2MB in the end (delta: 3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 11:51:10,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.66ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 64.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 11:51:10,905 INFO L158 Benchmark]: Boogie Preprocessor took 53.24ms. Allocated memory is still 102.8MB. Free memory was 64.1MB in the beginning and 60.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 11:51:10,906 INFO L158 Benchmark]: RCFGBuilder took 344.40ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 40.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-21 11:51:10,906 INFO L158 Benchmark]: TraceAbstraction took 690.43ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 39.9MB in the beginning and 81.8MB in the end (delta: -41.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:51:10,906 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 123.7MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:51:10,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 35.2MB in the beginning and 35.2MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.05ms. Allocated memory is still 102.8MB. Free memory was 71.7MB in the beginning and 68.2MB in the end (delta: 3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.66ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 64.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.24ms. Allocated memory is still 102.8MB. Free memory was 64.1MB in the beginning and 60.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 344.40ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 40.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 690.43ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 39.9MB in the beginning and 81.8MB in the end (delta: -41.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 123.7MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 121, overapproximation of someUnaryDOUBLEoperation at line 130, overapproximation of someBinaryArithmeticDOUBLEoperation at line 154, overapproximation of someBinaryDOUBLEComparisonOperation at line 156, overapproximation of to_real at line 122. Possible FailurePath: [L20-L112] const double T[362] = { 0.00000000000000, 0.01745240643728, 0.03489949670250, 0.05233595624294, 0.06975647374413, 0.08715574274766, 0.10452846326765, 0.12186934340515, 0.13917310096007, 0.15643446504023, 0.17364817766693, 0.19080899537654, 0.20791169081776, 0.22495105434386, 0.24192189559967, 0.25881904510252, 0.27563735581700, 0.29237170472274, 0.30901699437495, 0.32556815445716, 0.34202014332567, 0.35836794954530, 0.37460659341591, 0.39073112848927, 0.40673664307580, 0.42261826174070, 0.43837114678908, 0.45399049973955, 0.46947156278589, 0.48480962024634, 0.50000000000000, 0.51503807491005, 0.52991926423320, 0.54463903501503, 0.55919290347075, 0.57357643635105, 0.58778525229247, 0.60181502315205, 0.61566147532566, 0.62932039104984, 0.64278760968654, 0.65605902899051, 0.66913060635886, 0.68199836006250, 0.69465837045900, 0.70710678118655, 0.71933980033865, 0.73135370161917, 0.74314482547739, 0.75470958022277, 0.76604444311898, 0.77714596145697, 0.78801075360672, 0.79863551004729, 0.80901699437495, 0.81915204428899, 0.82903757255504, 0.83867056794542, 0.84804809615643, 0.85716730070211, 0.86602540378444, 0.87461970713940, 0.88294759285893, 0.89100652418837, 0.89879404629917, 0.90630778703665, 0.91354545764260, 0.92050485345244, 0.92718385456679, 0.93358042649720, 0.93969262078591, 0.94551857559932, 0.95105651629515, 0.95630475596304, 0.96126169593832, 0.96592582628907, 0.97029572627600, 0.97437006478524, 0.97814760073381, 0.98162718344766, 0.98480775301221, 0.98768834059514, 0.99026806874157, 0.99254615164132, 0.99452189536827, 0.99619469809175, 0.99756405025982, 0.99862953475457, 0.99939082701910, 0.99984769515639, 1.00000000000000, 0.99984769515639, 0.99939082701910, 0.99862953475457, 0.99756405025982, 0.99619469809175, 0.99452189536827, 0.99254615164132, 0.99026806874157, 0.98768834059514, 0.98480775301221, 0.98162718344766, 0.97814760073381, 0.97437006478524, 0.97029572627600, 0.96592582628907, 0.96126169593832, 0.95630475596304, 0.95105651629515, 0.94551857559932, 0.93969262078591, 0.93358042649720, 0.92718385456679, 0.92050485345244, 0.91354545764260, 0.90630778703665, 0.89879404629917, 0.89100652418837, 0.88294759285893, 0.87461970713940, 0.86602540378444, 0.85716730070211, 0.84804809615643, 0.83867056794542, 0.82903757255504, 0.81915204428899, 0.80901699437495, 0.79863551004729, 0.78801075360672, 0.77714596145697, 0.76604444311898, 0.75470958022277, 0.74314482547739, 0.73135370161917, 0.71933980033865, 0.70710678118655, 0.69465837045900, 0.68199836006250, 0.66913060635886, 0.65605902899051, 0.64278760968654, 0.62932039104984, 0.61566147532566, 0.60181502315205, 0.58778525229247, 0.57357643635105, 0.55919290347075, 0.54463903501503, 0.52991926423320, 0.51503807491005, 0.50000000000000, 0.48480962024634, 0.46947156278589, 0.45399049973955, 0.43837114678908, 0.42261826174070, 0.40673664307580, 0.39073112848927, 0.37460659341591, 0.35836794954530, 0.34202014332567, 0.32556815445716, 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-0.99862953475457, -0.99939082701910, -0.99984769515639, -1.00000000000000, -0.99984769515639, -0.99939082701910, -0.99862953475457, -0.99756405025982, -0.99619469809175, -0.99452189536827, -0.99254615164132, -0.99026806874157, -0.98768834059514, -0.98480775301221, -0.98162718344766, -0.97814760073381, -0.97437006478524, -0.97029572627600, -0.96592582628907, -0.96126169593832, -0.95630475596304, -0.95105651629515, -0.94551857559932, -0.93969262078591, -0.93358042649720, -0.92718385456679, -0.92050485345244, -0.91354545764260, -0.90630778703665, -0.89879404629917, -0.89100652418837, -0.88294759285893, -0.87461970713940, -0.86602540378444, -0.85716730070211, -0.84804809615643, -0.83867056794542, -0.82903757255504, -0.81915204428899, -0.80901699437495, -0.79863551004729, -0.78801075360672, -0.77714596145697, -0.76604444311898, -0.75470958022277, -0.74314482547739, -0.73135370161917, -0.71933980033865, -0.70710678118655, -0.69465837045900, -0.68199836006250, -0.66913060635886, -0.65605902899051, -0.64278760968654, -0.62932039104984, -0.61566147532566, -0.60181502315205, -0.58778525229247, -0.57357643635105, -0.55919290347075, -0.54463903501503, -0.52991926423321, -0.51503807491005, -0.50000000000000, -0.48480962024634, -0.46947156278589, -0.45399049973955, -0.43837114678908, -0.42261826174070, -0.40673664307580, -0.39073112848927, -0.37460659341591, -0.35836794954530, -0.34202014332567, -0.32556815445716, -0.30901699437495, -0.29237170472274, -0.27563735581700, -0.25881904510252, -0.24192189559967, -0.22495105434387, -0.20791169081776, -0.19080899537654, -0.17364817766693, -0.15643446504023, -0.13917310096007, -0.12186934340515, -0.10452846326765, -0.08715574274766, -0.06975647374413, -0.05233595624294, -0.03489949670250, -0.01745240643728, 0, 0 }; VAL [T={4:0}] [L148] double a, aa, r; [L150] a = -360 VAL [T={4:0}] [L150] COND TRUE a <= 360 [L151] aa = __VERIFIER_nondet_double() [L152] CALL assume_abort_if_not(aa >= a / 2. && aa <= (a+1.) / 2.) [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, T={4:0}] [L152] RET assume_abort_if_not(aa >= a / 2. && aa <= (a+1.) / 2.) [L154] CALL, EXPR SIN(aa) VAL [\old(x)=2901, T={4:0}] [L142] COND FALSE !(x<0) VAL [\old(x)=2901, T={4:0}, x=2901] [L143] CALL, EXPR SIN_POS(x) VAL [\old(x)=2901, T={4:0}] [L136] COND FALSE !(x>180) VAL [\old(x)=2901, T={4:0}, x=2901] [L137] CALL, EXPR SIN_180(x) VAL [\old(x)=2901, T={4:0}] [L130] COND TRUE x<0 VAL [\old(x)=2901, T={4:0}, x=2901] [L130] CALL, EXPR SIN_0_180(-x) VAL [T={4:0}] [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); VAL [\old(x)=2899, i=-2, T={4:0}, v_inf=2897, v_sup=2898, x=2899] [L130] RET, EXPR SIN_0_180(-x) VAL [\old(x)=2901, SIN_0_180(-x)=2902, T={4:0}, x=2901] [L130] return -SIN_0_180(-x); [L137] RET, EXPR SIN_180(x) VAL [\old(x)=2901, SIN_180(x)=2907, T={4:0}, x=2901] [L137] return SIN_180(x); [L143] RET, EXPR SIN_POS(x) VAL [\old(x)=2901, SIN_POS(x)=2907, T={4:0}, x=2901] [L143] return SIN_POS(x); [L154] RET, EXPR SIN(aa) VAL [a=2901, SIN(aa)=2907, T={4:0}] [L154] CALL, EXPR SIN(-aa) VAL [T={4:0}] [L142] COND FALSE !(x<0) VAL [\old(x)=2908, T={4:0}, x=2908] [L143] CALL, EXPR SIN_POS(x) VAL [\old(x)=2908, T={4:0}] [L136] COND FALSE !(x>180) VAL [\old(x)=2908, T={4:0}, x=2908] [L137] CALL, EXPR SIN_180(x) VAL [\old(x)=2908, T={4:0}] [L130] COND TRUE x<0 VAL [\old(x)=2908, T={4:0}, x=2908] [L130] CALL, EXPR SIN_0_180(-x) VAL [T={4:0}] [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); VAL [\old(x)=2900, i=-4, T={4:0}, v_inf=2905, v_sup=2903, x=2900] [L130] RET, EXPR SIN_0_180(-x) VAL [\old(x)=2908, SIN_0_180(-x)=2906, T={4:0}, x=2908] [L130] return -SIN_0_180(-x); [L137] RET, EXPR SIN_180(x) VAL [\old(x)=2908, SIN_180(x)=2904, T={4:0}, x=2908] [L137] return SIN_180(x); [L143] RET, EXPR SIN_POS(x) VAL [\old(x)=2908, SIN_POS(x)=2904, T={4:0}, x=2908] [L143] return SIN_POS(x); [L154] RET, EXPR SIN(-aa) VAL [a=2901, SIN(-aa)=2904, SIN(aa)=2907, T={4:0}] [L154] r = SIN(aa) + SIN(-aa) [L156] CALL __VERIFIER_assert(r >= -0.06 && r <= 0.06) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, T={4:0}] [L17] reach_error() VAL [\old(cond)=0, cond=0, T={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 51 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 19/19 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 [2021-12-21 11:51:10,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/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-benchs/sin_interpolated_negation.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 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:51:12,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:51:12,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:51:12,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:51:12,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:51:12,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:51:12,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:51:12,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:51:12,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:51:12,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:51:12,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:51:12,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:51:12,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:51:12,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:51:12,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:51:12,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:51:12,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:51:12,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:51:12,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:51:12,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:51:12,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:51:12,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:51:12,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:51:12,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:51:12,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:51:12,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:51:12,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:51:12,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:51:12,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:51:12,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:51:12,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:51:12,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:51:12,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:51:12,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:51:12,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:51:12,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:51:12,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:51:12,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:51:12,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:51:12,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:51:12,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:51:12,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:51:12,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:51:12,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:51:12,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:51:12,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:51:12,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:51:12,631 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:51:12,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:51:12,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:51:12,632 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:51:12,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:51:12,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:51:12,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:51:12,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:51:12,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:51:12,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:51:12,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:51:12,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:51:12,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:51:12,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:51:12,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:51:12,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:12,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:51:12,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:51:12,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:51:12,636 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:51:12,636 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:51:12,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:51:12,637 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:51:12,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:51:12,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:51:12,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:51:12,637 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 [2021-12-21 11:51:12,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:51:12,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:51:12,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:51:12,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:51:12,889 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:51:12,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-12-21 11:51:12,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec8cf643/90dc8b02f9194b4e912a6c4423f86bb4/FLAGee36680bc [2021-12-21 11:51:13,329 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:51:13,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-12-21 11:51:13,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec8cf643/90dc8b02f9194b4e912a6c4423f86bb4/FLAGee36680bc [2021-12-21 11:51:13,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec8cf643/90dc8b02f9194b4e912a6c4423f86bb4 [2021-12-21 11:51:13,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:51:13,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:51:13,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:13,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:51:13,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:51:13,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:13" (1/1) ... [2021-12-21 11:51:13,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d50b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:13, skipping insertion in model container [2021-12-21 11:51:13,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:51:13" (1/1) ... [2021-12-21 11:51:13,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:51:13,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:51:13,864 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-benchs/sin_interpolated_negation.c[684,697] [2021-12-21 11:51:13,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:13,975 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:51:13,993 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-benchs/sin_interpolated_negation.c[684,697] [2021-12-21 11:51:14,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:51:14,099 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:51:14,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14 WrapperNode [2021-12-21 11:51:14,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:51:14,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:14,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:51:14,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:51:14,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,152 INFO L137 Inliner]: procedures = 22, calls = 382, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 406 [2021-12-21 11:51:14,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:51:14,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:51:14,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:51:14,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:51:14,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:51:14,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:51:14,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:51:14,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:51:14,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (1/1) ... [2021-12-21 11:51:14,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:51:14,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:51:14,240 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) [2021-12-21 11:51:14,242 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 [2021-12-21 11:51:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:51:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:51:14,275 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-12-21 11:51:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-12-21 11:51:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:51:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-12-21 11:51:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-12-21 11:51:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-12-21 11:51:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-12-21 11:51:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-21 11:51:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure SIN [2021-12-21 11:51:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN [2021-12-21 11:51:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:51:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:51:14,400 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:51:14,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:51:18,183 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:51:18,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:51:18,187 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 11:51:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:18 BoogieIcfgContainer [2021-12-21 11:51:18,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:51:18,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:51:18,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:51:18,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:51:18,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:51:13" (1/3) ... [2021-12-21 11:51:18,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bc8b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:18, skipping insertion in model container [2021-12-21 11:51:18,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:51:14" (2/3) ... [2021-12-21 11:51:18,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bc8b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:51:18, skipping insertion in model container [2021-12-21 11:51:18,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:51:18" (3/3) ... [2021-12-21 11:51:18,195 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_negation.c [2021-12-21 11:51:18,198 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:51:18,199 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:51:18,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:51:18,234 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 [2021-12-21 11:51:18,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:51:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-21 11:51:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-21 11:51:18,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:18,250 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:18,250 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:18,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1228543863, now seen corresponding path program 1 times [2021-12-21 11:51:18,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:51:18,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701067084] [2021-12-21 11:51:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:18,266 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:51:18,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:51:18,268 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) [2021-12-21 11:51:18,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:51:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:21,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:51:21,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:51:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-21 11:51:21,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:51:21,630 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:51:21,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701067084] [2021-12-21 11:51:21,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701067084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:51:21,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:51:21,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:51:21,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227499620] [2021-12-21 11:51:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:51:21,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:51:21,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:51:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:51:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:51:21,665 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-21 11:51:21,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:51:21,679 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2021-12-21 11:51:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:51:21,681 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2021-12-21 11:51:21,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:51:21,685 INFO L225 Difference]: With dead ends: 86 [2021-12-21 11:51:21,686 INFO L226 Difference]: Without dead ends: 40 [2021-12-21 11:51:21,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:51:21,690 INFO L933 BasicCegarLoop]: 51 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, 51 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 [2021-12-21 11:51:21,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:51:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-21 11:51:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-21 11:51:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-21 11:51:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2021-12-21 11:51:21,716 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 52 [2021-12-21 11:51:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:51:21,716 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2021-12-21 11:51:21,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-21 11:51:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2021-12-21 11:51:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-21 11:51:21,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:51:21,719 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:51:21,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-21 11:51:21,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:51:21,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:51:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:51:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1021623079, now seen corresponding path program 1 times [2021-12-21 11:51:21,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:51:21,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85124170] [2021-12-21 11:51:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:51:21,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:51:21,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:51:21,948 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) [2021-12-21 11:51:21,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 11:51:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:51:25,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-21 11:51:25,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:51:41,350 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (or (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (not (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (not (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)))) is different from false [2021-12-21 11:51:50,932 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from false [2021-12-21 11:51:52,979 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from true [2021-12-21 11:52:11,646 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from false [2021-12-21 11:52:21,885 WARN L838 $PredicateComparison]: unable to prove that (and (fp.lt |c_ULTIMATE.start_main_~aa~0#1| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)))))) is different from false