./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 35987657 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-?-3598765 [2022-07-21 01:13:12,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:13:12,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:13:12,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:13:12,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:13:12,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:13:12,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:13:12,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:13:12,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:13:12,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:13:12,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:13:12,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:13:12,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:13:12,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:13:12,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:13:12,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:13:12,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:13:12,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:13:12,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:13:12,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:13:12,171 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:13:12,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:13:12,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:13:12,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:13:12,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:13:12,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:13:12,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:13:12,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:13:12,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:13:12,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:13:12,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:13:12,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:13:12,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:13:12,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:13:12,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:13:12,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:13:12,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:13:12,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:13:12,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:13:12,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:13:12,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:13:12,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:13:12,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:13:12,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:13:12,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:13:12,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:13:12,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:13:12,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:13:12,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:13:12,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:13:12,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:13:12,232 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:13:12,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:13:12,233 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:13:12,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:13:12,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:13:12,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:13:12,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:13:12,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:13:12,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:13:12,244 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:13:12,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:13:12,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:13:12,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:13:12,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:13:12,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:13:12,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:13:12,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:13:12,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:13:12,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:13:12,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:13:12,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:13:12,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:13:12,247 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:13:12,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:13:12,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:13:12,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-21 01:13:12,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:13:12,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:13:12,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:13:12,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:13:12,608 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:13:12,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-21 01:13:12,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e1e7c8f/acef40f9b06c413c98e917d87f2faf90/FLAGc5820f0ee [2022-07-21 01:13:13,113 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:13:13,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-21 01:13:13,122 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e1e7c8f/acef40f9b06c413c98e917d87f2faf90/FLAGc5820f0ee [2022-07-21 01:13:13,504 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e1e7c8f/acef40f9b06c413c98e917d87f2faf90 [2022-07-21 01:13:13,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:13:13,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:13:13,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:13:13,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:13:13,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:13:13,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72daa0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13, skipping insertion in model container [2022-07-21 01:13:13,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:13:13,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:13:13,654 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] [2022-07-21 01:13:13,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:13:13,720 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:13:13,738 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] [2022-07-21 01:13:13,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:13:13,790 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:13:13,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13 WrapperNode [2022-07-21 01:13:13,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:13:13,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:13:13,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:13:13,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:13:13,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,850 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2022-07-21 01:13:13,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:13:13,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:13:13,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:13:13,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:13:13,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:13:13,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:13:13,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:13:13,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:13:13,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (1/1) ... [2022-07-21 01:13:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:13:13,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:13:13,936 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) [2022-07-21 01:13:13,966 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 [2022-07-21 01:13:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:13:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:13:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 01:13:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-21 01:13:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:13:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:13:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-21 01:13:14,080 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:13:14,081 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:13:14,353 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:13:14,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:13:14,358 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 01:13:14,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:13:14 BoogieIcfgContainer [2022-07-21 01:13:14,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:13:14,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:13:14,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:13:14,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:13:14,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:13:13" (1/3) ... [2022-07-21 01:13:14,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b6b1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:13:14, skipping insertion in model container [2022-07-21 01:13:14,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:13" (2/3) ... [2022-07-21 01:13:14,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b6b1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:13:14, skipping insertion in model container [2022-07-21 01:13:14,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:13:14" (3/3) ... [2022-07-21 01:13:14,375 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-21 01:13:14,387 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:13:14,387 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:13:14,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:13:14,432 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@5dae596d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@606cb91d [2022-07-21 01:13:14,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:13:14,437 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) [2022-07-21 01:13:14,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:13:14,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:13:14,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:13:14,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:13:14,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:13:14,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-21 01:13:14,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:13:14,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214140762] [2022-07-21 01:13:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:13:14,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:13:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:13:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:13:14,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:13:14,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214140762] [2022-07-21 01:13:14,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214140762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:13:14,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:13:14,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:13:14,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141562376] [2022-07-21 01:13:14,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:13:14,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:13:14,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:13:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:13:14,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:13:14,703 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) [2022-07-21 01:13:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:13:14,715 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-21 01:13:14,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:13:14,717 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 [2022-07-21 01:13:14,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:13:14,724 INFO L225 Difference]: With dead ends: 30 [2022-07-21 01:13:14,724 INFO L226 Difference]: Without dead ends: 14 [2022-07-21 01:13:14,727 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 [2022-07-21 01:13:14,730 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 [2022-07-21 01:13:14,731 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] [2022-07-21 01:13:14,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-21 01:13:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-21 01:13:14,757 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) [2022-07-21 01:13:14,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-21 01:13:14,762 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-21 01:13:14,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:13:14,762 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-21 01:13:14,763 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) [2022-07-21 01:13:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-21 01:13:14,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:13:14,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:13:14,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:13:14,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:13:14,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:13:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:13:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-21 01:13:14,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:13:14,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030021351] [2022-07-21 01:13:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:13:14,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:13:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:13:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:13:14,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:13:14,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030021351] [2022-07-21 01:13:14,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030021351] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:13:14,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:13:14,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 01:13:14,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316377742] [2022-07-21 01:13:14,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:13:14,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 01:13:14,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:13:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 01:13:14,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 01:13:14,970 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) [2022-07-21 01:13:15,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:13:15,005 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-21 01:13:15,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 01:13:15,006 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 [2022-07-21 01:13:15,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:13:15,007 INFO L225 Difference]: With dead ends: 28 [2022-07-21 01:13:15,007 INFO L226 Difference]: Without dead ends: 14 [2022-07-21 01:13:15,012 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 [2022-07-21 01:13:15,013 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 [2022-07-21 01:13:15,014 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] [2022-07-21 01:13:15,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-21 01:13:15,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-21 01:13:15,022 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) [2022-07-21 01:13:15,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-21 01:13:15,023 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-21 01:13:15,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:13:15,023 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-21 01:13:15,023 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) [2022-07-21 01:13:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-21 01:13:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:13:15,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:13:15,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:13:15,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:13:15,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:13:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:13:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-21 01:13:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:13:15,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556989957] [2022-07-21 01:13:15,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:13:15,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:13:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:13:15,093 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:13:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:13:15,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:13:15,162 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:13:15,163 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:13:15,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 01:13:15,168 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-21 01:13:15,171 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:13:15,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:13:15 BoogieIcfgContainer [2022-07-21 01:13:15,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:13:15,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:13:15,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:13:15,210 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:13:15,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:13:14" (3/4) ... [2022-07-21 01:13:15,212 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:13:15,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:13:15,213 INFO L158 Benchmark]: Toolchain (without parser) took 1704.97ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 40.8MB in the beginning and 57.2MB in the end (delta: -16.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:13:15,213 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:13:15,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.75ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 42.7MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 01:13:15,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.72ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 40.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:13:15,214 INFO L158 Benchmark]: Boogie Preprocessor took 50.92ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 39.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:13:15,215 INFO L158 Benchmark]: RCFGBuilder took 454.70ms. Allocated memory is still 60.8MB. Free memory was 38.9MB in the beginning and 24.4MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:13:15,215 INFO L158 Benchmark]: TraceAbstraction took 840.04ms. Allocated memory is still 77.6MB. Free memory was 59.5MB in the beginning and 57.6MB in the end (delta: 1.9MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-07-21 01:13:15,216 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 77.6MB. Free memory was 57.6MB in the beginning and 57.2MB in the end (delta: 468.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:13:15,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 42.4MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.75ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 42.7MB in the end (delta: -2.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.72ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 40.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.92ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 39.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 454.70ms. Allocated memory is still 60.8MB. Free memory was 38.9MB in the beginning and 24.4MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 840.04ms. Allocated memory is still 77.6MB. Free memory was 59.5MB in the beginning and 57.6MB in the end (delta: 1.9MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 77.6MB. Free memory was 57.6MB in the beginning and 57.2MB in the end (delta: 468.8kB). 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, 0.2s SatisfiabilityAnalysisTime, 0.2s 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 [2022-07-21 01:13:15,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter_iir.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:13:17,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:13:17,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:13:17,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:13:17,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:13:17,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:13:17,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:13:17,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:13:17,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:13:17,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:13:17,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:13:17,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:13:17,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:13:17,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:13:17,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:13:17,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:13:17,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:13:17,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:13:17,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:13:17,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:13:17,223 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:13:17,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:13:17,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:13:17,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:13:17,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:13:17,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:13:17,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:13:17,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:13:17,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:13:17,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:13:17,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:13:17,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:13:17,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:13:17,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:13:17,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:13:17,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:13:17,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:13:17,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:13:17,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:13:17,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:13:17,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:13:17,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:13:17,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:13:17,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:13:17,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:13:17,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:13:17,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:13:17,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:13:17,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:13:17,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:13:17,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:13:17,297 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:13:17,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:13:17,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:13:17,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:13:17,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:13:17,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:13:17,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:13:17,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:13:17,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:13:17,299 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:13:17,300 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:13:17,300 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:13:17,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:13:17,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:13:17,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:13:17,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:13:17,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:13:17,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:13:17,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:13:17,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:13:17,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:13:17,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:13:17,302 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:13:17,302 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:13:17,302 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:13:17,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:13:17,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:13:17,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:13:17,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-21 01:13:17,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:13:17,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:13:17,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:13:17,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:13:17,651 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:13:17,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-21 01:13:17,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b53d8b2/90112ad570914dadae08664a3c50fae4/FLAGc0ef9b464 [2022-07-21 01:13:18,089 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:13:18,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-21 01:13:18,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b53d8b2/90112ad570914dadae08664a3c50fae4/FLAGc0ef9b464 [2022-07-21 01:13:18,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5b53d8b2/90112ad570914dadae08664a3c50fae4 [2022-07-21 01:13:18,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:13:18,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:13:18,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:13:18,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:13:18,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:13:18,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2e2095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18, skipping insertion in model container [2022-07-21 01:13:18,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:13:18,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:13:18,672 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] [2022-07-21 01:13:18,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:13:18,788 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:13:18,806 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] [2022-07-21 01:13:18,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:13:18,855 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:13:18,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18 WrapperNode [2022-07-21 01:13:18,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:13:18,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:13:18,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:13:18,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:13:18,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,917 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2022-07-21 01:13:18,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:13:18,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:13:18,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:13:18,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:13:18,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:13:18,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:13:18,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:13:18,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:13:18,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (1/1) ... [2022-07-21 01:13:18,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:13:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:13:19,017 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) [2022-07-21 01:13:19,028 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 [2022-07-21 01:13:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:13:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-21 01:13:19,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-21 01:13:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:13:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-07-21 01:13:19,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:13:19,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:13:19,124 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:13:19,126 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:13:22,016 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:13:22,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:13:22,021 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 01:13:22,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:13:22 BoogieIcfgContainer [2022-07-21 01:13:22,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:13:22,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:13:22,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:13:22,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:13:22,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:13:18" (1/3) ... [2022-07-21 01:13:22,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6a4f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:13:22, skipping insertion in model container [2022-07-21 01:13:22,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:13:18" (2/3) ... [2022-07-21 01:13:22,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6a4f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:13:22, skipping insertion in model container [2022-07-21 01:13:22,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:13:22" (3/3) ... [2022-07-21 01:13:22,029 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-21 01:13:22,041 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:13:22,042 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:13:22,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:13:22,094 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@68fd8a9c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22067231 [2022-07-21 01:13:22,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:13:22,098 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) [2022-07-21 01:13:22,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:13:22,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:13:22,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:13:22,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:13:22,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:13:22,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-21 01:13:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:13:22,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596877461] [2022-07-21 01:13:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:13:22,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:13:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:13:22,127 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) [2022-07-21 01:13:22,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:13:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:13:24,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:13:24,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:13:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:13:24,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:13:24,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:13:24,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596877461] [2022-07-21 01:13:24,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596877461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:13:24,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:13:24,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:13:24,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133002935] [2022-07-21 01:13:24,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:13:24,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:13:24,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:13:24,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:13:24,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:13:24,813 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) [2022-07-21 01:13:24,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:13:24,825 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-21 01:13:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:13:24,827 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 [2022-07-21 01:13:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:13:24,834 INFO L225 Difference]: With dead ends: 30 [2022-07-21 01:13:24,834 INFO L226 Difference]: Without dead ends: 14 [2022-07-21 01:13:24,837 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 [2022-07-21 01:13:24,842 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 [2022-07-21 01:13:24,843 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] [2022-07-21 01:13:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-21 01:13:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-21 01:13:24,867 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) [2022-07-21 01:13:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-21 01:13:24,869 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-21 01:13:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:13:24,870 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-21 01:13:24,870 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) [2022-07-21 01:13:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-21 01:13:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:13:24,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:13:24,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:13:24,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 01:13:25,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:13:25,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:13:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:13:25,090 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-21 01:13:25,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:13:25,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818396558] [2022-07-21 01:13:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:13:25,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:13:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:13:25,094 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) [2022-07-21 01:13:25,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:13:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:13:27,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 01:13:27,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:13:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:13:28,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:13:28,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:13:28,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818396558] [2022-07-21 01:13:28,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818396558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:13:28,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:13:28,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 01:13:28,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358954149] [2022-07-21 01:13:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:13:28,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 01:13:28,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:13:28,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 01:13:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 01:13:28,081 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) [2022-07-21 01:13:31,385 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 [] [2022-07-21 01:13:31,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:13:31,387 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-21 01:13:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 01:13:31,814 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 [2022-07-21 01:13:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:13:31,815 INFO L225 Difference]: With dead ends: 28 [2022-07-21 01:13:31,815 INFO L226 Difference]: Without dead ends: 14 [2022-07-21 01:13:31,815 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 [2022-07-21 01:13:31,816 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 [2022-07-21 01:13:31,817 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] [2022-07-21 01:13:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-21 01:13:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-21 01:13:31,819 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) [2022-07-21 01:13:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-21 01:13:31,819 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-21 01:13:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:13:31,820 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-21 01:13:31,820 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) [2022-07-21 01:13:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-21 01:13:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:13:31,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:13:31,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:13:31,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:13:32,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:13:32,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:13:32,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:13:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-21 01:13:32,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:13:32,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105621679] [2022-07-21 01:13:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:13:32,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:13:32,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:13:32,032 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) [2022-07-21 01:13:32,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 01:13:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:13:54,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2022-07-21 01:13:54,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:13:58,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:13:58,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:13:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:13:58,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:13:58,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:13:58,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:13:58,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 01:13:58,220 INFO L244 Elim1Store]: Index analysis took 138 ms [2022-07-21 01:13:59,019 INFO L356 Elim1Store]: treesize reduction 459, result has 5.9 percent of original size [2022-07-21 01:13:59,020 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 [2022-07-21 01:13:59,153 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 [2022-07-21 01:14:03,331 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 [2022-07-21 01:14:19,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:14:19,719 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 [2022-07-21 01:14:19,819 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 [2022-07-21 01:14:20,535 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 01:14:20,536 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 [2022-07-21 01:14:26,979 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (bvadd |~#P~0.offset| (_ bv4 32)) (_ bv0 32)) [2022-07-21 01:14:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 01:14:28,989 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)) [2022-07-21 01:14:30,992 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)) [2022-07-21 01:14:30,992 INFO L244 Elim1Store]: Index analysis took 6014 ms [2022-07-21 01:14:33,000 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|)) [2022-07-21 01:14:35,003 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|)) [2022-07-21 01:14:37,006 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)) [2022-07-21 01:14:39,015 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)) [2022-07-21 01:14:41,029 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)) [2022-07-21 01:14:43,041 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)) [2022-07-21 01:14:43,118 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 [2022-07-21 01:17:08,733 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 [2022-07-21 01:17:09,591 INFO L356 Elim1Store]: treesize reduction 472, result has 0.2 percent of original size [2022-07-21 01:17:09,591 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