./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 6c24879c 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-?-6c24879 [2022-07-12 02:28:24,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:28:24,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:28:24,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:28:24,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:28:24,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:28:24,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:28:25,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:28:25,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:28:25,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:28:25,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:28:25,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:28:25,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:28:25,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:28:25,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:28:25,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:28:25,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:28:25,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:28:25,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:28:25,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:28:25,027 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:28:25,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:28:25,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:28:25,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:28:25,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:28:25,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:28:25,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:28:25,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:28:25,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:28:25,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:28:25,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:28:25,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:28:25,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:28:25,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:28:25,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:28:25,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:28:25,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:28:25,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:28:25,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:28:25,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:28:25,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:28:25,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:28:25,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:28:25,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:28:25,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:28:25,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:28:25,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:28:25,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:28:25,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:28:25,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:28:25,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:28:25,084 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:28:25,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:28:25,085 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:28:25,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:28:25,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:28:25,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:28:25,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:28:25,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:28:25,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:28:25,086 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:28:25,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:28:25,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:28:25,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:28:25,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:28:25,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:28:25,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:28:25,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:28:25,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:28:25,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:28:25,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:28:25,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:28:25,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:28:25,089 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:28:25,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:28:25,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:28:25,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-12 02:28:25,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:28:25,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:28:25,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:28:25,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:28:25,379 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:28:25,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-12 02:28:25,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f493ceb/2660b7e19559427ab956c49e01c22882/FLAG023626f06 [2022-07-12 02:28:25,851 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:28:25,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-12 02:28:25,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f493ceb/2660b7e19559427ab956c49e01c22882/FLAG023626f06 [2022-07-12 02:28:25,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f493ceb/2660b7e19559427ab956c49e01c22882 [2022-07-12 02:28:25,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:28:25,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:28:25,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:28:25,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:28:25,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:28:25,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:28:25" (1/1) ... [2022-07-12 02:28:25,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384b737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:25, skipping insertion in model container [2022-07-12 02:28:25,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:28:25" (1/1) ... [2022-07-12 02:28:25,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:28:25,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:28:26,102 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] [2022-07-12 02:28:26,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:28:26,157 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:28:26,170 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] [2022-07-12 02:28:26,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:28:26,200 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:28:26,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26 WrapperNode [2022-07-12 02:28:26,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:28:26,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:28:26,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:28:26,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:28:26,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,258 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2022-07-12 02:28:26,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:28:26,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:28:26,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:28:26,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:28:26,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:28:26,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:28:26,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:28:26,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:28:26,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (1/1) ... [2022-07-12 02:28:26,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:28:26,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:28:26,341 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) [2022-07-12 02:28:26,370 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 [2022-07-12 02:28:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:28:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:28:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-12 02:28:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-12 02:28:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:28:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:28:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-12 02:28:26,483 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:28:26,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:28:26,699 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:28:26,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:28:26,705 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 02:28:26,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:28:26 BoogieIcfgContainer [2022-07-12 02:28:26,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:28:26,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:28:26,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:28:26,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:28:26,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:28:25" (1/3) ... [2022-07-12 02:28:26,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9bc34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:28:26, skipping insertion in model container [2022-07-12 02:28:26,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:26" (2/3) ... [2022-07-12 02:28:26,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9bc34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:28:26, skipping insertion in model container [2022-07-12 02:28:26,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:28:26" (3/3) ... [2022-07-12 02:28:26,713 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-12 02:28:26,725 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:28:26,726 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:28:26,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:28:26,782 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@6b691a18, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1931021c [2022-07-12 02:28:26,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:28:26,786 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) [2022-07-12 02:28:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 02:28:26,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:28:26,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:28:26,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:28:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:28:26,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-12 02:28:26,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:28:26,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482073272] [2022-07-12 02:28:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:28:26,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:28:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:28:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:28:27,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:28:27,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482073272] [2022-07-12 02:28:27,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482073272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:28:27,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:28:27,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:28:27,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722279001] [2022-07-12 02:28:27,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:28:27,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:28:27,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:28:27,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:28:27,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:28:27,122 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) [2022-07-12 02:28:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:28:27,132 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-12 02:28:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:28:27,134 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 [2022-07-12 02:28:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:28:27,140 INFO L225 Difference]: With dead ends: 30 [2022-07-12 02:28:27,141 INFO L226 Difference]: Without dead ends: 14 [2022-07-12 02:28:27,144 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 [2022-07-12 02:28:27,148 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 [2022-07-12 02:28:27,150 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] [2022-07-12 02:28:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-12 02:28:27,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-12 02:28:27,177 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) [2022-07-12 02:28:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-12 02:28:27,180 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-12 02:28:27,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:28:27,180 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-12 02:28:27,181 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) [2022-07-12 02:28:27,181 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-12 02:28:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 02:28:27,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:28:27,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:28:27,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:28:27,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:28:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:28:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-12 02:28:27,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:28:27,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5811467] [2022-07-12 02:28:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:28:27,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:28:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:28:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:28:27,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 02:28:27,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5811467] [2022-07-12 02:28:27,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5811467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:28:27,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:28:27,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 02:28:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308438865] [2022-07-12 02:28:27,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:28:27,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:28:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 02:28:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:28:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:28:27,370 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) [2022-07-12 02:28:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:28:27,404 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-12 02:28:27,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:28:27,405 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 [2022-07-12 02:28:27,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:28:27,405 INFO L225 Difference]: With dead ends: 28 [2022-07-12 02:28:27,406 INFO L226 Difference]: Without dead ends: 14 [2022-07-12 02:28:27,407 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 [2022-07-12 02:28:27,408 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 [2022-07-12 02:28:27,409 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] [2022-07-12 02:28:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-12 02:28:27,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-12 02:28:27,413 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) [2022-07-12 02:28:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-12 02:28:27,414 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-12 02:28:27,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:28:27,415 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-12 02:28:27,416 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) [2022-07-12 02:28:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-12 02:28:27,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 02:28:27,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:28:27,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:28:27,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 02:28:27,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:28:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:28:27,427 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-12 02:28:27,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:28:27,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223246932] [2022-07-12 02:28:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:28:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:28:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:28:27,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:28:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:28:27,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:28:27,585 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:28:27,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:28:27,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 02:28:27,592 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-12 02:28:27,594 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:28:27,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:28:27 BoogieIcfgContainer [2022-07-12 02:28:27,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:28:27,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:28:27,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:28:27,646 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:28:27,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:28:26" (3/4) ... [2022-07-12 02:28:27,649 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:28:27,649 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:28:27,650 INFO L158 Benchmark]: Toolchain (without parser) took 1771.99ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 53.5MB in the beginning and 76.9MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:28:27,650 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:28:27,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.81ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 63.0MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:28:27,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.63ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 60.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:28:27,654 INFO L158 Benchmark]: Boogie Preprocessor took 49.19ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 59.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:28:27,654 INFO L158 Benchmark]: RCFGBuilder took 396.66ms. Allocated memory is still 88.1MB. Free memory was 59.5MB in the beginning and 44.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 02:28:27,655 INFO L158 Benchmark]: TraceAbstraction took 937.75ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 44.1MB in the beginning and 77.3MB in the end (delta: -33.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:28:27,655 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 76.9MB in the end (delta: 459.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:28:27,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 57.5MB in the beginning and 57.5MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.81ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 63.0MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.63ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 60.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.19ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 59.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.66ms. Allocated memory is still 88.1MB. Free memory was 59.5MB 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 937.75ms. Allocated memory was 88.1MB in the beginning and 111.1MB in the end (delta: 23.1MB). Free memory was 44.1MB in the beginning and 77.3MB in the end (delta: -33.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 76.9MB in the end (delta: 459.7kB). 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: 0.8s, 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, 0.3s 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 [2022-07-12 02:28:27,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/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-?-6c24879 [2022-07-12 02:28:29,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:28:29,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:28:29,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:28:29,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:28:29,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:28:29,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:28:29,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:28:29,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:28:29,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:28:29,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:28:29,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:28:29,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:28:29,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:28:29,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:28:29,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:28:29,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:28:29,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:28:29,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:28:29,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:28:29,771 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:28:29,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:28:29,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:28:29,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:28:29,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:28:29,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:28:29,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:28:29,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:28:29,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:28:29,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:28:29,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:28:29,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:28:29,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:28:29,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:28:29,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:28:29,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:28:29,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:28:29,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:28:29,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:28:29,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:28:29,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:28:29,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:28:29,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:28:29,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:28:29,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:28:29,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:28:29,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:28:29,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:28:29,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:28:29,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:28:29,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:28:29,838 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:28:29,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:28:29,839 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:28:29,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:28:29,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:28:29,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:28:29,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:28:29,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:28:29,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:28:29,854 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:28:29,854 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:28:29,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:28:29,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:28:29,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:28:29,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:28:29,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:28:29,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:28:29,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:28:29,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:28:29,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:28:29,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:28:29,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:28:29,857 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:28:29,857 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:28:29,857 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:28:29,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:28:29,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:28:29,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:28:29,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-12 02:28:30,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:28:30,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:28:30,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:28:30,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:28:30,223 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:28:30,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-12 02:28:30,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14df269c2/7224c461bad74312a62bb64afa1f1a44/FLAG42812361a [2022-07-12 02:28:30,720 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:28:30,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-12 02:28:30,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14df269c2/7224c461bad74312a62bb64afa1f1a44/FLAG42812361a [2022-07-12 02:28:31,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14df269c2/7224c461bad74312a62bb64afa1f1a44 [2022-07-12 02:28:31,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:28:31,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:28:31,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:28:31,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:28:31,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:28:31,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f486d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31, skipping insertion in model container [2022-07-12 02:28:31,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:28:31,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:28:31,271 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] [2022-07-12 02:28:31,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:28:31,385 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:28:31,397 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] [2022-07-12 02:28:31,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:28:31,450 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:28:31,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31 WrapperNode [2022-07-12 02:28:31,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:28:31,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:28:31,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:28:31,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:28:31,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,514 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2022-07-12 02:28:31,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:28:31,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:28:31,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:28:31,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:28:31,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:28:31,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:28:31,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:28:31,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:28:31,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (1/1) ... [2022-07-12 02:28:31,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:28:31,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:28:31,616 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) [2022-07-12 02:28:31,641 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 [2022-07-12 02:28:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:28:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-12 02:28:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-12 02:28:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:28:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-07-12 02:28:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:28:31,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:28:31,734 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:28:31,735 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:28:34,524 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:28:34,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:28:34,529 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 02:28:34,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:28:34 BoogieIcfgContainer [2022-07-12 02:28:34,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:28:34,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:28:34,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:28:34,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:28:34,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:28:31" (1/3) ... [2022-07-12 02:28:34,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7b37ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:28:34, skipping insertion in model container [2022-07-12 02:28:34,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:28:31" (2/3) ... [2022-07-12 02:28:34,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7b37ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:28:34, skipping insertion in model container [2022-07-12 02:28:34,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:28:34" (3/3) ... [2022-07-12 02:28:34,539 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-12 02:28:34,552 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:28:34,553 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:28:34,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:28:34,608 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@3d73ce38, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6465e84d [2022-07-12 02:28:34,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:28:34,613 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) [2022-07-12 02:28:34,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 02:28:34,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:28:34,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:28:34,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:28:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:28:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-12 02:28:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:28:34,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681617139] [2022-07-12 02:28:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:28:34,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:28:34,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:28:34,650 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) [2022-07-12 02:28:34,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:28:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:28:37,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 02:28:37,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:28:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:28:37,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:28:37,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:28:37,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681617139] [2022-07-12 02:28:37,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681617139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:28:37,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:28:37,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 02:28:37,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347433422] [2022-07-12 02:28:37,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:28:37,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 02:28:37,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:28:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 02:28:37,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 02:28:37,408 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) [2022-07-12 02:28:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:28:37,422 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-12 02:28:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 02:28:37,424 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 [2022-07-12 02:28:37,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:28:37,430 INFO L225 Difference]: With dead ends: 30 [2022-07-12 02:28:37,430 INFO L226 Difference]: Without dead ends: 14 [2022-07-12 02:28:37,435 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 [2022-07-12 02:28:37,441 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 [2022-07-12 02:28:37,442 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] [2022-07-12 02:28:37,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-12 02:28:37,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-12 02:28:37,467 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) [2022-07-12 02:28:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-12 02:28:37,469 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-12 02:28:37,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:28:37,470 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-12 02:28:37,470 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) [2022-07-12 02:28:37,471 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-12 02:28:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 02:28:37,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:28:37,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:28:37,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 02:28:37,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:28:37,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:28:37,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:28:37,689 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-12 02:28:37,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:28:37,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864988028] [2022-07-12 02:28:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:28:37,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:28:37,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:28:37,691 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) [2022-07-12 02:28:37,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 02:28:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:28:40,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 02:28:40,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:28:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:28:40,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:28:40,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:28:40,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864988028] [2022-07-12 02:28:40,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864988028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:28:40,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:28:40,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 02:28:40,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516142806] [2022-07-12 02:28:40,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:28:40,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:28:40,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:28:40,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:28:40,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:28:40,585 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) [2022-07-12 02:28:43,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 02:28:43,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:28:43,881 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-12 02:28:44,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:28:44,325 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 [2022-07-12 02:28:44,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:28:44,325 INFO L225 Difference]: With dead ends: 28 [2022-07-12 02:28:44,325 INFO L226 Difference]: Without dead ends: 14 [2022-07-12 02:28:44,326 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 [2022-07-12 02:28:44,327 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 [2022-07-12 02:28:44,327 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] [2022-07-12 02:28:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-12 02:28:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-12 02:28:44,330 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) [2022-07-12 02:28:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-12 02:28:44,332 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-12 02:28:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:28:44,332 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-12 02:28:44,332 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) [2022-07-12 02:28:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-12 02:28:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 02:28:44,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:28:44,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 02:28:44,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 02:28:44,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:28:44,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:28:44,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:28:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-12 02:28:44,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:28:44,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502905296] [2022-07-12 02:28:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:28:44,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:28:44,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:28:44,548 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) [2022-07-12 02:28:44,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 02:29:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:29:09,964 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2022-07-12 02:29:09,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:29:13,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:13,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:13,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:13,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:13,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:13,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:13,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 02:29:13,841 INFO L244 Elim1Store]: Index analysis took 146 ms [2022-07-12 02:29:14,688 INFO L356 Elim1Store]: treesize reduction 459, result has 5.9 percent of original size [2022-07-12 02:29:14,689 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 [2022-07-12 02:29:14,836 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 [2022-07-12 02:29:19,277 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 [2022-07-12 02:29:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:36,718 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 [2022-07-12 02:29:36,830 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 [2022-07-12 02:29:37,636 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-12 02:29:37,637 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 [2022-07-12 02:29:44,144 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (bvadd |~#P~0.offset| (_ bv4 32)) (_ bv0 32)) [2022-07-12 02:29:44,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 02:29:46,146 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)) [2022-07-12 02:29:48,150 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)) [2022-07-12 02:29:48,150 INFO L244 Elim1Store]: Index analysis took 6032 ms [2022-07-12 02:29:50,153 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|)) [2022-07-12 02:29:52,155 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|)) [2022-07-12 02:29:54,161 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)) [2022-07-12 02:29:56,165 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)) [2022-07-12 02:29:58,170 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)) [2022-07-12 02:30:00,174 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)) [2022-07-12 02:30:00,280 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 [2022-07-12 02:32:26,309 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 [2022-07-12 02:32:27,162 INFO L356 Elim1Store]: treesize reduction 472, result has 0.2 percent of original size [2022-07-12 02:32:27,163 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