./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/filter_iir.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/filter_iir.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 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:11:31,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:11:31,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:11:31,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:11:31,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:11:31,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:11:31,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:11:31,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:11:31,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:11:31,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:11:31,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:11:31,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:11:31,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:11:31,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:11:31,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:11:31,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:11:31,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:11:31,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:11:31,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:11:31,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:11:31,518 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:11:31,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:11:31,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:11:31,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:11:31,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:11:31,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:11:31,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:11:31,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:11:31,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:11:31,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:11:31,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:11:31,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:11:31,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:11:31,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:11:31,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:11:31,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:11:31,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:11:31,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:11:31,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:11:31,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:11:31,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:11:31,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:11:31,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:11:31,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:11:31,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:11:31,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:11:31,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:11:31,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:11:31,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:11:31,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:11:31,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:11:31,563 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:11:31,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:11:31,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:11:31,565 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:11:31,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:11:31,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:11:31,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:11:31,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:11:31,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:11:31,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:11:31,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:11:31,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:11:31,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:11:31,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:11:31,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:11:31,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:11:31,567 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:11:31,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:11:31,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:11:31,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-13 14:11:31,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:11:31,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:11:31,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:11:31,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:11:31,790 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:11:31,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-13 14:11:31,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d47dbf7b/76229c335637476195d90672c35cece9/FLAG75818ec4e [2022-07-13 14:11:32,191 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:11:32,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-13 14:11:32,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d47dbf7b/76229c335637476195d90672c35cece9/FLAG75818ec4e [2022-07-13 14:11:32,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d47dbf7b/76229c335637476195d90672c35cece9 [2022-07-13 14:11:32,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:11:32,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:11:32,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:11:32,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:11:32,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:11:32,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f782c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32, skipping insertion in model container [2022-07-13 14:11:32,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:11:32,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:11:32,799 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/filter_iir.c[583,596] [2022-07-13 14:11:32,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:11:32,823 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:11:32,832 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/filter_iir.c[583,596] [2022-07-13 14:11:32,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:11:32,855 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:11:32,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32 WrapperNode [2022-07-13 14:11:32,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:11:32,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:11:32,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:11:32,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:11:32,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,884 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2022-07-13 14:11:32,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:11:32,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:11:32,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:11:32,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:11:32,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:11:32,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:11:32,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:11:32,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:11:32,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (1/1) ... [2022-07-13 14:11:32,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:11:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:11:32,935 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) [2022-07-13 14:11:32,951 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 [2022-07-13 14:11:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:11:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:11:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-13 14:11:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-13 14:11:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:11:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:11:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-13 14:11:33,031 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:11:33,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:11:33,185 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:11:33,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:11:33,189 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 14:11:33,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:11:33 BoogieIcfgContainer [2022-07-13 14:11:33,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:11:33,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:11:33,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:11:33,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:11:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:11:32" (1/3) ... [2022-07-13 14:11:33,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a79572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:11:33, skipping insertion in model container [2022-07-13 14:11:33,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:32" (2/3) ... [2022-07-13 14:11:33,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a79572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:11:33, skipping insertion in model container [2022-07-13 14:11:33,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:11:33" (3/3) ... [2022-07-13 14:11:33,207 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-13 14:11:33,216 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:11:33,216 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:11:33,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:11:33,265 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20cdd5bd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6cd81f5 [2022-07-13 14:11:33,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:11:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:11:33,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:11:33,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:11:33,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:11:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:11:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-13 14:11:33,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:11:33,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065373254] [2022-07-13 14:11:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:11:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:11:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:11:33,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:11:33,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:11:33,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065373254] [2022-07-13 14:11:33,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065373254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:11:33,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:11:33,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:11:33,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840140878] [2022-07-13 14:11:33,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:11:33,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:11:33,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:11:33,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:11:33,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:11:33,481 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:11:33,491 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-13 14:11:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:11:33,493 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 14:11:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:11:33,497 INFO L225 Difference]: With dead ends: 30 [2022-07-13 14:11:33,498 INFO L226 Difference]: Without dead ends: 14 [2022-07-13 14:11:33,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:11:33,504 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:11:33,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:11:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-13 14:11:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-13 14:11:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-13 14:11:33,523 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-13 14:11:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:11:33,524 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-13 14:11:33,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-13 14:11:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:11:33,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:11:33,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:11:33,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:11:33,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:11:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:11:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-13 14:11:33,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:11:33,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88191403] [2022-07-13 14:11:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:11:33,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:11:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:11:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:11:33,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:11:33,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88191403] [2022-07-13 14:11:33,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88191403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:11:33,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:11:33,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 14:11:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11163493] [2022-07-13 14:11:33,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:11:33,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:11:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:11:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:11:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:11:33,693 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:11:33,727 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-13 14:11:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:11:33,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 14:11:33,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:11:33,729 INFO L225 Difference]: With dead ends: 28 [2022-07-13 14:11:33,729 INFO L226 Difference]: Without dead ends: 14 [2022-07-13 14:11:33,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:11:33,734 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:11:33,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:11:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-13 14:11:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-13 14:11:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-13 14:11:33,740 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-13 14:11:33,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:11:33,741 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-13 14:11:33,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-13 14:11:33,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:11:33,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:11:33,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:11:33,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:11:33,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:11:33,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:11:33,747 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-13 14:11:33,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:11:33,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114837049] [2022-07-13 14:11:33,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:11:33,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:11:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:11:33,818 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:11:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:11:33,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:11:33,895 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:11:33,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:11:33,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 14:11:33,899 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 14:11:33,902 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:11:33,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:11:33 BoogieIcfgContainer [2022-07-13 14:11:33,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:11:33,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:11:33,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:11:33,946 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:11:33,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:11:33" (3/4) ... [2022-07-13 14:11:33,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:11:33,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:11:33,949 INFO L158 Benchmark]: Toolchain (without parser) took 1314.18ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 69.0MB in the end (delta: -15.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-07-13 14:11:33,949 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:11:33,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.20ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 63.3MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:11:33,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.21ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 61.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:11:33,950 INFO L158 Benchmark]: Boogie Preprocessor took 19.56ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:11:33,950 INFO L158 Benchmark]: RCFGBuilder took 285.00ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 44.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 14:11:33,950 INFO L158 Benchmark]: TraceAbstraction took 753.85ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 69.4MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:11:33,951 INFO L158 Benchmark]: Witness Printer took 2.55ms. Allocated memory is still 107.0MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:11:33,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 88.1MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.20ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 63.3MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.21ms. Allocated memory is still 88.1MB. Free memory was 63.3MB in the beginning and 61.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.56ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 59.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.00ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 44.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 753.85ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 69.4MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.55ms. Allocated memory is still 107.0MB. Free memory is still 69.0MB. 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: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28. Possible FailurePath: [L16] double A1[3] = { 1, 0.5179422053046, 1.0 }; [L17] double b1[2] = { 1.470767736573, 0.5522073405779 }; [L18] double A2[3] = { 1, 1.633101801841, 1.0 }; [L19] double b2[2] = { 1.742319554830, 0.820939679242 }; [L21] double D1[2], D2[2]; [L22] double P, X; VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L43] D1[0] = 0. [L43] D1[1] = 0. [L44] D2[0] = 0. [L44] D2[1] = 0. [L45] P = 0. VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L47] COND TRUE 1 [L49] X = __VERIFIER_nondet_double() [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. VAL [\read(X)=63, \read(X)=63, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] CALL assume_abort_if_not(X >= -10. && X <= 10.) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=1, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] RET assume_abort_if_not(X >= -10. && X <= 10.) [L52] CALL iir4(&X, &P) [L26] double x1, y1, t1, t2; [L28] EXPR \read(*x) [L28] x1 = 0.0117749388721091 * *x [L30] EXPR b1[0] [L30] EXPR D1[0] [L30] EXPR b1[1] [L30] EXPR D1[1] [L30] t1 = x1 + b1[0]*D1[0] - b1[1]*D1[1] [L31] EXPR A1[0] [L31] EXPR A1[1] [L31] EXPR D1[0] [L31] EXPR A1[2] [L31] EXPR D1[1] [L31] y1 = A1[0]*t1 - A1[1]*D1[0] + A1[2]*D1[1] [L32] EXPR D1[0] [L32] D1[1] = D1[0] [L33] D1[0] = t1 [L35] EXPR b2[0] [L35] EXPR D2[0] [L35] EXPR b2[1] [L35] EXPR D2[1] [L35] t2 = y1 + b2[0]*D2[0] - b2[1]*D2[1] [L36] EXPR A2[0] [L36] EXPR A2[1] [L36] EXPR D2[0] [L36] EXPR A2[2] [L36] EXPR D2[1] [L36] *y = A2[0]*t2 - A2[1]*D2[0] + A2[2]*D2[1] [L37] EXPR D2[0] [L37] D2[1] = D2[0] [L38] D2[0] = t2 VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, t1=51, t2=58, x={11:0}, X={11:0}, x={11:0}, y={10:0}, y={10:0}] [L52] RET iir4(&X, &P) [L54] EXPR \read(P) [L54] EXPR P >= -1e30 && P <= 1e30 VAL [\read(P)=59, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, P >= -1e30 && P <= 1e30=0, X={11:0}] [L54] CALL __VERIFIER_assert(P >= -1e30 && P <= 1e30) [L13] COND TRUE !(cond) VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L13] reach_error() VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 14:11:33,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter_iir.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 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:11:35,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:11:35,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:11:35,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:11:35,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:11:35,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:11:35,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:11:35,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:11:35,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:11:35,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:11:35,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:11:35,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:11:35,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:11:35,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:11:35,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:11:35,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:11:35,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:11:35,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:11:35,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:11:35,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:11:35,571 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:11:35,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:11:35,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:11:35,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:11:35,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:11:35,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:11:35,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:11:35,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:11:35,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:11:35,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:11:35,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:11:35,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:11:35,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:11:35,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:11:35,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:11:35,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:11:35,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:11:35,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:11:35,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:11:35,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:11:35,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:11:35,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:11:35,609 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:11:35,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:11:35,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:11:35,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:11:35,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:11:35,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:11:35,638 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:11:35,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:11:35,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:11:35,639 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:11:35,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:11:35,640 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:11:35,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:11:35,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:11:35,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:11:35,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:11:35,642 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:11:35,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:11:35,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:11:35,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:11:35,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:11:35,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:11:35,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:11:35,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:11:35,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:11:35,643 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:11:35,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:11:35,643 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:11:35,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:11:35,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:11:35,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:11:35,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-13 14:11:35,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:11:35,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:11:35,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:11:35,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:11:35,943 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:11:35,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-13 14:11:35,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64d645bb/15954507a7114819bb151904e2e3e2d6/FLAG89083972e [2022-07-13 14:11:36,440 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:11:36,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-13 14:11:36,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64d645bb/15954507a7114819bb151904e2e3e2d6/FLAG89083972e [2022-07-13 14:11:36,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c64d645bb/15954507a7114819bb151904e2e3e2d6 [2022-07-13 14:11:36,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:11:36,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:11:36,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:11:36,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:11:36,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:11:36,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:11:36" (1/1) ... [2022-07-13 14:11:36,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49babebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:36, skipping insertion in model container [2022-07-13 14:11:36,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:11:36" (1/1) ... [2022-07-13 14:11:36,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:11:36,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:11:37,033 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/filter_iir.c[583,596] [2022-07-13 14:11:37,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:11:37,101 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:11:37,111 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/filter_iir.c[583,596] [2022-07-13 14:11:37,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:11:37,152 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:11:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37 WrapperNode [2022-07-13 14:11:37,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:11:37,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:11:37,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:11:37,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:11:37,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,203 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2022-07-13 14:11:37,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:11:37,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:11:37,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:11:37,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:11:37,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:11:37,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:11:37,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:11:37,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:11:37,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (1/1) ... [2022-07-13 14:11:37,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:11:37,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:11:37,285 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) [2022-07-13 14:11:37,310 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 [2022-07-13 14:11:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:11:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-13 14:11:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-13 14:11:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:11:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-07-13 14:11:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:11:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:11:37,397 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:11:37,398 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:11:40,192 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:11:40,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:11:40,196 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 14:11:40,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:11:40 BoogieIcfgContainer [2022-07-13 14:11:40,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:11:40,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:11:40,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:11:40,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:11:40,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:11:36" (1/3) ... [2022-07-13 14:11:40,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5190f754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:11:40, skipping insertion in model container [2022-07-13 14:11:40,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:11:37" (2/3) ... [2022-07-13 14:11:40,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5190f754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:11:40, skipping insertion in model container [2022-07-13 14:11:40,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:11:40" (3/3) ... [2022-07-13 14:11:40,202 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-13 14:11:40,211 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:11:40,211 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:11:40,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:11:40,243 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@23829248, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c564a0c [2022-07-13 14:11:40,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:11:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:11:40,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:11:40,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:11:40,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:11:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:11:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-13 14:11:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:11:40,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402555770] [2022-07-13 14:11:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:11:40,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:11:40,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:11:40,266 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) [2022-07-13 14:11:40,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:11:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:11:42,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:11:42,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:11:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:11:42,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:11:42,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:11:42,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402555770] [2022-07-13 14:11:42,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402555770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:11:42,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:11:42,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:11:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373401769] [2022-07-13 14:11:42,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:11:42,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:11:42,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:11:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:11:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:11:42,857 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:11:42,867 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-13 14:11:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:11:42,868 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 14:11:42,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:11:42,874 INFO L225 Difference]: With dead ends: 30 [2022-07-13 14:11:42,874 INFO L226 Difference]: Without dead ends: 14 [2022-07-13 14:11:42,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:11:42,888 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:11:42,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:11:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-13 14:11:42,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-13 14:11:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:42,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-13 14:11:42,911 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-13 14:11:42,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:11:42,912 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-13 14:11:42,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:42,912 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-13 14:11:42,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:11:42,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:11:42,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:11:42,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:11:43,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:11:43,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:11:43,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:11:43,146 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-13 14:11:43,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:11:43,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381883731] [2022-07-13 14:11:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:11:43,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:11:43,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:11:43,149 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) [2022-07-13 14:11:43,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:11:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:11:45,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 14:11:45,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:11:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:11:45,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:11:45,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:11:45,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381883731] [2022-07-13 14:11:45,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381883731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:11:45,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:11:45,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 14:11:45,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023085916] [2022-07-13 14:11:45,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:11:45,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:11:45,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:11:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:11:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:11:45,951 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:49,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 14:11:49,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:11:49,167 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-13 14:11:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:11:49,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 14:11:49,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:11:49,609 INFO L225 Difference]: With dead ends: 28 [2022-07-13 14:11:49,609 INFO L226 Difference]: Without dead ends: 14 [2022-07-13 14:11:49,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:11:49,610 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-13 14:11:49,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-07-13 14:11:49,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-13 14:11:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-13 14:11:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-13 14:11:49,612 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-13 14:11:49,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:11:49,612 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-13 14:11:49,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:11:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-13 14:11:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:11:49,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:11:49,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:11:49,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:11:49,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:11:49,831 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:11:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:11:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-13 14:11:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:11:49,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708216894] [2022-07-13 14:11:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:11:49,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:11:49,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:11:49,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:11:49,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:12:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:12:14,706 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2022-07-13 14:12:14,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:12:17,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:17,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:17,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:17,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:17,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:17,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 14:12:17,844 INFO L244 Elim1Store]: Index analysis took 108 ms [2022-07-13 14:12:18,565 INFO L356 Elim1Store]: treesize reduction 459, result has 5.9 percent of original size [2022-07-13 14:12:18,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 21 disjoint index pairs (out of 120 index pairs), introduced 17 new quantified variables, introduced 29 case distinctions, treesize of input 244 treesize of output 287 [2022-07-13 14:12:18,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 220 [2022-07-13 14:12:22,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 220 [2022-07-13 14:12:37,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:37,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 1218 treesize of output 944 [2022-07-13 14:12:37,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 813 treesize of output 757 [2022-07-13 14:12:38,661 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-13 14:12:38,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 795 treesize of output 697 [2022-07-13 14:12:45,117 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (bvadd |~#P~0.offset| (_ bv4 32)) (_ bv0 32)) [2022-07-13 14:12:45,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 14:12:47,123 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2022-07-13 14:12:49,129 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2022-07-13 14:12:49,130 INFO L244 Elim1Store]: Index analysis took 6020 ms [2022-07-13 14:12:51,137 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|)) [2022-07-13 14:12:53,149 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|)) [2022-07-13 14:12:55,158 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2022-07-13 14:12:57,175 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2022-07-13 14:12:59,184 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |~#P~0.base|) (bvadd |~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2022-07-13 14:13:01,195 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |~#P~0.base|) (bvadd |~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2022-07-13 14:13:01,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-07-13 14:15:26,734 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse43 (let ((.cse45 (let ((.cse46 (select |c_#memory_int| (_ bv11 32)))) (concat (select .cse46 (_ bv4 32)) (select .cse46 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse45) ((_ extract 62 52) .cse45) ((_ extract 51 0) .cse45)))) (.cse44 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (exists ((|~#A2~0.offset| (_ BitVec 32)) (|~#b2~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_9_6 (_ BitVec 64)) (|~#A1~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_1_6 (_ BitVec 64)) (v_skolemized_v_prenex_10_6 (_ BitVec 64)) (v_skolemized_v_prenex_23_6 (_ BitVec 64)) (v_skolemized_v_prenex_11_6 (_ BitVec 64)) (|~#b1~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_12_6 (_ BitVec 64)) (v_skolemized_v_prenex_5_6 (_ BitVec 64)) (v_skolemized_v_prenex_6_6 (_ BitVec 64)) (v_skolemized_v_prenex_7_6 (_ BitVec 64)) (v_skolemized_v_prenex_18_6 (_ BitVec 64)) (v_skolemized_v_prenex_17_6 (_ BitVec 64)) (v_skolemized_v_prenex_19_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_22| (_ BitVec 64)) (v_skolemized_v_prenex_14_6 (_ BitVec 64))) (let ((.cse34 (select |c_#memory_int| (_ bv7 32))) (.cse24 (select |c_#memory_int| (_ bv5 32))) (.cse29 (select |c_#memory_int| (_ bv4 32))) (.cse39 (select |c_#memory_int| (_ bv6 32)))) (let ((.cse0 (select |c_#memory_int| |c_~#P~0.base|)) (.cse3 (select .cse39 (bvadd (_ bv4 32) |~#A2~0.offset|))) (.cse1 (select .cse39 |~#A2~0.offset|)) (.cse7 (select .cse29 (bvadd (_ bv4 32) |~#A1~0.offset|))) (.cse12 (select .cse29 |~#A1~0.offset|)) (.cse5 (select .cse24 (bvadd (_ bv4 32) |~#b1~0.offset|))) (.cse2 (select .cse24 (bvadd |~#b1~0.offset| (_ bv12 32)))) (.cse15 (select .cse24 (bvadd (_ bv8 32) |~#b1~0.offset|))) (.cse4 (select .cse29 (bvadd |~#A1~0.offset| (_ bv12 32)))) (.cse17 (select .cse29 (bvadd |~#A1~0.offset| (_ bv20 32)))) (.cse6 (select .cse29 (bvadd (_ bv16 32) |~#A1~0.offset|))) (.cse16 (select .cse34 (bvadd (_ bv4 32) |~#b2~0.offset|))) (.cse10 (select .cse34 (bvadd |~#b2~0.offset| (_ bv12 32)))) (.cse13 (select .cse34 (bvadd (_ bv8 32) |~#b2~0.offset|))) (.cse18 (select .cse39 (bvadd |~#A2~0.offset| (_ bv12 32)))) (.cse8 (select .cse39 (bvadd |~#A2~0.offset| (_ bv20 32)))) (.cse11 (select .cse39 (bvadd (_ bv16 32) |~#A2~0.offset|))) (.cse14 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (.cse9 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_6_6) ((_ extract 62 52) v_skolemized_v_prenex_6_6) ((_ extract 51 0) v_skolemized_v_prenex_6_6)) ((_ to_fp 11 53) c_currentRoundingMode (/ 2589711026523.0 5000000000000.0))) (= (select .cse0 |c_~#P~0.offset|) ((_ extract 31 0) v_skolemized_v_prenex_23_6)) (= .cse1 ((_ extract 31 0) v_skolemized_v_prenex_1_6)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_5_6) ((_ extract 62 52) v_skolemized_v_prenex_5_6) ((_ extract 51 0) v_skolemized_v_prenex_5_6)) ((_ to_fp 11 53) c_currentRoundingMode (/ 1633101801841.0 1000000000000.0))) (= .cse2 ((_ extract 63 32) v_skolemized_v_prenex_7_6)) (= (select .cse0 (bvadd (_ bv4 32) |c_~#P~0.offset|)) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1470767736573.0 1000000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_12_6) ((_ extract 62 52) v_skolemized_v_prenex_12_6) ((_ extract 51 0) v_skolemized_v_prenex_12_6))) (= .cse3 ((_ extract 63 32) v_skolemized_v_prenex_1_6)) (= ((_ extract 63 32) v_skolemized_v_prenex_6_6) .cse4) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 410469839621.0 500000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_11_6) ((_ extract 62 52) v_skolemized_v_prenex_11_6) ((_ extract 51 0) v_skolemized_v_prenex_11_6))) (= ((_ extract 63 32) v_skolemized_v_prenex_12_6) .cse5) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 5522073405779.0 10000000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_7_6) ((_ extract 62 52) v_skolemized_v_prenex_7_6) ((_ extract 51 0) v_skolemized_v_prenex_7_6))) (= ((_ extract 31 0) v_skolemized_v_prenex_9_6) .cse6) (= ((_ extract 63 32) v_skolemized_v_prenex_10_6) .cse7) (= .cse8 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_21|)) (= .cse9 (fp ((_ extract 63 63) v_skolemized_v_prenex_9_6) ((_ extract 62 52) v_skolemized_v_prenex_9_6) ((_ extract 51 0) v_skolemized_v_prenex_9_6))) (= ((_ extract 63 32) v_skolemized_v_prenex_11_6) .cse10) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_21|) .cse11) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 174231955483.0 100000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_14_6) ((_ extract 62 52) v_skolemized_v_prenex_14_6) ((_ extract 51 0) v_skolemized_v_prenex_14_6))) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_17_6) ((_ extract 62 52) v_skolemized_v_prenex_17_6) ((_ extract 51 0) v_skolemized_v_prenex_17_6))) (= .cse12 ((_ extract 31 0) v_skolemized_v_prenex_10_6)) (= ((_ extract 31 0) v_skolemized_v_prenex_11_6) .cse13) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_10_6) ((_ extract 62 52) v_skolemized_v_prenex_10_6) ((_ extract 51 0) v_skolemized_v_prenex_10_6)) .cse14) (= ((_ extract 31 0) v_skolemized_v_prenex_7_6) .cse15) (= ((_ extract 63 32) v_skolemized_v_prenex_14_6) .cse16) (= .cse17 ((_ extract 63 32) v_skolemized_v_prenex_9_6)) (= ((_ extract 63 32) v_skolemized_v_prenex_5_6) .cse18) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_18_6) ((_ extract 62 52) v_skolemized_v_prenex_18_6) ((_ extract 51 0) v_skolemized_v_prenex_18_6))) (= (let ((.cse37 (let ((.cse42 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_22|)))) (fp ((_ extract 63 63) .cse42) ((_ extract 62 52) .cse42) ((_ extract 51 0) .cse42))))) (fp.add c_currentRoundingMode (let ((.cse35 (let ((.cse40 (concat ((_ extract 63 32) v_skolemized_v_prenex_19_6) ((_ extract 31 0) v_skolemized_v_prenex_19_6)))) (fp ((_ extract 63 63) .cse40) ((_ extract 62 52) .cse40) ((_ extract 51 0) .cse40))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (let ((.cse19 (concat .cse3 .cse1))) (fp ((_ extract 63 63) .cse19) ((_ extract 62 52) .cse19) ((_ extract 51 0) .cse19))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse27 (let ((.cse32 (concat ((_ extract 63 32) v_skolemized_v_prenex_17_6) ((_ extract 31 0) v_skolemized_v_prenex_17_6)))) (fp ((_ extract 63 63) .cse32) ((_ extract 62 52) .cse32) ((_ extract 51 0) .cse32))))) (fp.add c_currentRoundingMode (let ((.cse25 (let ((.cse30 (concat ((_ extract 63 32) v_skolemized_v_prenex_18_6) ((_ extract 31 0) v_skolemized_v_prenex_18_6)))) (fp ((_ extract 63 63) .cse30) ((_ extract 62 52) .cse30) ((_ extract 51 0) .cse30))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (let ((.cse20 (concat .cse7 .cse12))) (fp ((_ extract 63 63) .cse20) ((_ extract 62 52) .cse20) ((_ extract 51 0) .cse20))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 117749388721091.0 10000000000000000.0)) (let ((.cse21 (let ((.cse22 (select |c_#memory_int| (_ bv11 32)))) (concat (select .cse22 (_ bv4 32)) (select .cse22 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse21) ((_ extract 62 52) .cse21) ((_ extract 51 0) .cse21)))) (fp.mul c_currentRoundingMode (let ((.cse23 (concat .cse5 (select .cse24 |~#b1~0.offset|)))) (fp ((_ extract 63 63) .cse23) ((_ extract 62 52) .cse23) ((_ extract 51 0) .cse23))) .cse25)) (fp.mul c_currentRoundingMode (let ((.cse26 (concat .cse2 .cse15))) (fp ((_ extract 63 63) .cse26) ((_ extract 62 52) .cse26) ((_ extract 51 0) .cse26))) .cse27))) (fp.mul c_currentRoundingMode (let ((.cse28 (concat .cse4 (select .cse29 (bvadd (_ bv8 32) |~#A1~0.offset|))))) (fp ((_ extract 63 63) .cse28) ((_ extract 62 52) .cse28) ((_ extract 51 0) .cse28))) .cse25))) (fp.mul c_currentRoundingMode (let ((.cse31 (concat .cse17 .cse6))) (fp ((_ extract 63 63) .cse31) ((_ extract 62 52) .cse31) ((_ extract 51 0) .cse31))) .cse27))) (fp.mul c_currentRoundingMode (let ((.cse33 (concat .cse16 (select .cse34 |~#b2~0.offset|)))) (fp ((_ extract 63 63) .cse33) ((_ extract 62 52) .cse33) ((_ extract 51 0) .cse33))) .cse35)) (fp.mul c_currentRoundingMode (let ((.cse36 (concat .cse10 .cse13))) (fp ((_ extract 63 63) .cse36) ((_ extract 62 52) .cse36) ((_ extract 51 0) .cse36))) .cse37))) (fp.mul c_currentRoundingMode (let ((.cse38 (concat .cse18 (select .cse39 (bvadd (_ bv8 32) |~#A2~0.offset|))))) (fp ((_ extract 63 63) .cse38) ((_ extract 62 52) .cse38) ((_ extract 51 0) .cse38))) .cse35))) (fp.mul c_currentRoundingMode (let ((.cse41 (concat .cse8 .cse11))) (fp ((_ extract 63 63) .cse41) ((_ extract 62 52) .cse41) ((_ extract 51 0) .cse41))) .cse37))) (fp ((_ extract 63 63) v_skolemized_v_prenex_23_6) ((_ extract 62 52) v_skolemized_v_prenex_23_6) ((_ extract 51 0) v_skolemized_v_prenex_23_6))) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_19_6) ((_ extract 62 52) v_skolemized_v_prenex_19_6) ((_ extract 51 0) v_skolemized_v_prenex_19_6))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) .cse14) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_21|)) .cse9) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_22|)) (_ +zero 11 53)))))) (= (_ bv0 32) |c_~#P~0.offset|) (= |c_~#P~0.base| (_ bv10 32)) (fp.leq .cse43 .cse44) (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq .cse43 (fp.neg .cse44)))) is different from false [2022-07-13 14:15:27,582 INFO L356 Elim1Store]: treesize reduction 472, result has 0.2 percent of original size [2022-07-13 14:15:27,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 16 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 42 case distinctions, treesize of input 1051 treesize of output 495