./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 791161d1 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-?-791161d [2022-07-22 13:50:03,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:50:03,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:50:03,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:50:03,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:50:03,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:50:03,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:50:03,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:50:03,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:50:03,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:50:03,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:50:03,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:50:03,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:50:03,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:50:03,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:50:03,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:50:03,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:50:03,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:50:03,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:50:03,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:50:03,177 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:50:03,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:50:03,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:50:03,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:50:03,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:50:03,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:50:03,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:50:03,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:50:03,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:50:03,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:50:03,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:50:03,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:50:03,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:50:03,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:50:03,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:50:03,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:50:03,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:50:03,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:50:03,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:50:03,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:50:03,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:50:03,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:50:03,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 13:50:03,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:50:03,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:50:03,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:50:03,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:50:03,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:50:03,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:50:03,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:50:03,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:50:03,216 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:50:03,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:50:03,217 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:50:03,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 13:50:03,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:50:03,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:50:03,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:50:03,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:50:03,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:50:03,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:50:03,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:50:03,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:50:03,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:50:03,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:50:03,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:50:03,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:50:03,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:50:03,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:50:03,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:50:03,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:50:03,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 13:50:03,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 13:50:03,221 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:50:03,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:50:03,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:50:03,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-22 13:50:03,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:50:03,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:50:03,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:50:03,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:50:03,416 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:50:03,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-22 13:50:03,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2572dad/838e14720bf54f69957d57b9e48af28f/FLAG05ba3a18f [2022-07-22 13:50:03,800 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:50:03,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-22 13:50:03,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2572dad/838e14720bf54f69957d57b9e48af28f/FLAG05ba3a18f [2022-07-22 13:50:03,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a2572dad/838e14720bf54f69957d57b9e48af28f [2022-07-22 13:50:03,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:50:03,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:50:03,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:50:03,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:50:03,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:50:03,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:50:03" (1/1) ... [2022-07-22 13:50:03,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4122fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:03, skipping insertion in model container [2022-07-22 13:50:03,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:50:03" (1/1) ... [2022-07-22 13:50:03,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:50:03,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:50:03,988 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] [2022-07-22 13:50:04,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:50:04,032 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:50:04,042 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] [2022-07-22 13:50:04,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:50:04,080 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:50:04,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04 WrapperNode [2022-07-22 13:50:04,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:50:04,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:50:04,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:50:04,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:50:04,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,129 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2022-07-22 13:50:04,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:50:04,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:50:04,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:50:04,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:50:04,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:50:04,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:50:04,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:50:04,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:50:04,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (1/1) ... [2022-07-22 13:50:04,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:50:04,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:50:04,219 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) [2022-07-22 13:50:04,230 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 [2022-07-22 13:50:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:50:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 13:50:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-22 13:50:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-22 13:50:04,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:50:04,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:50:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-22 13:50:04,302 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:50:04,303 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:50:04,467 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:50:04,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:50:04,472 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 13:50:04,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:50:04 BoogieIcfgContainer [2022-07-22 13:50:04,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:50:04,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:50:04,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:50:04,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:50:04,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:50:03" (1/3) ... [2022-07-22 13:50:04,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79efddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:50:04, skipping insertion in model container [2022-07-22 13:50:04,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:04" (2/3) ... [2022-07-22 13:50:04,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79efddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:50:04, skipping insertion in model container [2022-07-22 13:50:04,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:50:04" (3/3) ... [2022-07-22 13:50:04,483 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-22 13:50:04,493 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:50:04,493 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:50:04,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:50:04,541 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@265ebd03, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1e440f1e [2022-07-22 13:50:04,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:50:04,545 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) [2022-07-22 13:50:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 13:50:04,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:50:04,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:50:04,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:50:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:50:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-22 13:50:04,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:50:04,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090250585] [2022-07-22 13:50:04,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:50:04,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:50:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:50:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:50:04,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 13:50:04,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090250585] [2022-07-22 13:50:04,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090250585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:50:04,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:50:04,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:50:04,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595755736] [2022-07-22 13:50:04,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:50:04,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:50:04,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 13:50:04,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:50:04,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:50:04,851 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) [2022-07-22 13:50:04,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:50:04,861 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-22 13:50:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:50:04,863 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 [2022-07-22 13:50:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:50:04,868 INFO L225 Difference]: With dead ends: 30 [2022-07-22 13:50:04,869 INFO L226 Difference]: Without dead ends: 14 [2022-07-22 13:50:04,871 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 [2022-07-22 13:50:04,876 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 [2022-07-22 13:50:04,877 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] [2022-07-22 13:50:04,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-22 13:50:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-22 13:50:04,899 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) [2022-07-22 13:50:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-22 13:50:04,900 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-22 13:50:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:50:04,901 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-22 13:50:04,901 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) [2022-07-22 13:50:04,901 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-22 13:50:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 13:50:04,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:50:04,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:50:04,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 13:50:04,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:50:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:50:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-22 13:50:04,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:50:04,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264586208] [2022-07-22 13:50:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:50:04,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:50:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:50:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:50:05,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 13:50:05,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264586208] [2022-07-22 13:50:05,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264586208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:50:05,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:50:05,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 13:50:05,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462448795] [2022-07-22 13:50:05,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:50:05,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 13:50:05,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 13:50:05,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 13:50:05,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 13:50:05,074 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) [2022-07-22 13:50:05,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:50:05,098 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-22 13:50:05,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 13:50:05,099 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 [2022-07-22 13:50:05,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:50:05,099 INFO L225 Difference]: With dead ends: 28 [2022-07-22 13:50:05,100 INFO L226 Difference]: Without dead ends: 14 [2022-07-22 13:50:05,103 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 [2022-07-22 13:50:05,104 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 [2022-07-22 13:50:05,105 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] [2022-07-22 13:50:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-22 13:50:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-22 13:50:05,110 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) [2022-07-22 13:50:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-22 13:50:05,110 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-22 13:50:05,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:50:05,111 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-22 13:50:05,112 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) [2022-07-22 13:50:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-22 13:50:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 13:50:05,115 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:50:05,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:50:05,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 13:50:05,116 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:50:05,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:50:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-22 13:50:05,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 13:50:05,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494071467] [2022-07-22 13:50:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:50:05,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 13:50:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:50:05,189 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 13:50:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 13:50:05,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 13:50:05,253 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 13:50:05,254 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 13:50:05,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 13:50:05,259 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-22 13:50:05,261 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 13:50:05,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 01:50:05 BoogieIcfgContainer [2022-07-22 13:50:05,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 13:50:05,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 13:50:05,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 13:50:05,297 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 13:50:05,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:50:04" (3/4) ... [2022-07-22 13:50:05,299 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 13:50:05,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 13:50:05,300 INFO L158 Benchmark]: Toolchain (without parser) took 1479.17ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 75.8MB in the beginning and 99.6MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:50:05,300 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 41.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 13:50:05,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.11ms. Allocated memory is still 104.9MB. Free memory was 75.8MB in the beginning and 79.1MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 13:50:05,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.50ms. Allocated memory is still 104.9MB. Free memory was 79.1MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:50:05,301 INFO L158 Benchmark]: Boogie Preprocessor took 47.83ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 75.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:50:05,301 INFO L158 Benchmark]: RCFGBuilder took 297.83ms. Allocated memory is still 104.9MB. Free memory was 75.2MB in the beginning and 60.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 13:50:05,302 INFO L158 Benchmark]: TraceAbstraction took 818.56ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 60.2MB in the beginning and 100.4MB in the end (delta: -40.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-07-22 13:50:05,302 INFO L158 Benchmark]: Witness Printer took 2.44ms. Allocated memory is still 125.8MB. Free memory was 100.4MB in the beginning and 99.6MB in the end (delta: 749.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 13:50:05,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 41.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.11ms. Allocated memory is still 104.9MB. Free memory was 75.8MB in the beginning and 79.1MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.50ms. Allocated memory is still 104.9MB. Free memory was 79.1MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.83ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 75.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.83ms. Allocated memory is still 104.9MB. Free memory was 75.2MB in the beginning and 60.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 818.56ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 60.2MB in the beginning and 100.4MB in the end (delta: -40.2MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 2.44ms. Allocated memory is still 125.8MB. Free memory was 100.4MB in the beginning and 99.6MB in the end (delta: 749.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28. Possible FailurePath: [L16] double A1[3] = { 1, 0.5179422053046, 1.0 }; [L17] double b1[2] = { 1.470767736573, 0.5522073405779 }; [L18] double A2[3] = { 1, 1.633101801841, 1.0 }; [L19] double b2[2] = { 1.742319554830, 0.820939679242 }; [L21] double D1[2], D2[2]; [L22] double P, X; VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L43] D1[0] = 0. [L43] D1[1] = 0. [L44] D2[0] = 0. [L44] D2[1] = 0. [L45] P = 0. VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L47] COND TRUE 1 [L49] X = __VERIFIER_nondet_double() [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. VAL [\read(X)=63, \read(X)=63, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] CALL assume_abort_if_not(X >= -10. && X <= 10.) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=1, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] RET assume_abort_if_not(X >= -10. && X <= 10.) [L52] CALL iir4(&X, &P) [L26] double x1, y1, t1, t2; [L28] EXPR \read(*x) [L28] x1 = 0.0117749388721091 * *x [L30] EXPR b1[0] [L30] EXPR D1[0] [L30] EXPR b1[1] [L30] EXPR D1[1] [L30] t1 = x1 + b1[0]*D1[0] - b1[1]*D1[1] [L31] EXPR A1[0] [L31] EXPR A1[1] [L31] EXPR D1[0] [L31] EXPR A1[2] [L31] EXPR D1[1] [L31] y1 = A1[0]*t1 - A1[1]*D1[0] + A1[2]*D1[1] [L32] EXPR D1[0] [L32] D1[1] = D1[0] [L33] D1[0] = t1 [L35] EXPR b2[0] [L35] EXPR D2[0] [L35] EXPR b2[1] [L35] EXPR D2[1] [L35] t2 = y1 + b2[0]*D2[0] - b2[1]*D2[1] [L36] EXPR A2[0] [L36] EXPR A2[1] [L36] EXPR D2[0] [L36] EXPR A2[2] [L36] EXPR D2[1] [L36] *y = A2[0]*t2 - A2[1]*D2[0] + A2[2]*D2[1] [L37] EXPR D2[0] [L37] D2[1] = D2[0] [L38] D2[0] = t2 VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, t1=51, t2=58, X={11:0}, x={11:0}, x={11:0}, y={10:0}, y={10:0}] [L52] RET iir4(&X, &P) [L54] EXPR \read(P) [L54] EXPR P >= -1e30 && P <= 1e30 VAL [\read(P)=59, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, P >= -1e30 && P <= 1e30=0, X={11:0}] [L54] CALL __VERIFIER_assert(P >= -1e30 && P <= 1e30) [L13] COND TRUE !(cond) VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L13] reach_error() VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-22 13:50:05,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter_iir.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 13:50:07,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 13:50:07,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 13:50:07,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 13:50:07,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 13:50:07,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 13:50:07,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 13:50:07,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 13:50:07,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 13:50:07,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 13:50:07,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 13:50:07,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 13:50:07,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 13:50:07,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 13:50:07,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 13:50:07,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 13:50:07,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 13:50:07,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 13:50:07,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 13:50:07,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 13:50:07,261 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 13:50:07,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 13:50:07,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 13:50:07,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 13:50:07,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 13:50:07,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 13:50:07,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 13:50:07,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 13:50:07,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 13:50:07,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 13:50:07,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 13:50:07,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 13:50:07,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 13:50:07,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 13:50:07,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 13:50:07,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 13:50:07,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 13:50:07,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 13:50:07,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 13:50:07,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 13:50:07,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 13:50:07,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 13:50:07,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 13:50:07,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 13:50:07,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 13:50:07,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 13:50:07,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 13:50:07,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 13:50:07,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 13:50:07,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 13:50:07,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 13:50:07,331 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 13:50:07,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 13:50:07,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 13:50:07,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 13:50:07,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 13:50:07,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 13:50:07,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 13:50:07,334 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 13:50:07,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 13:50:07,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 13:50:07,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 13:50:07,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 13:50:07,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:50:07,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 13:50:07,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 13:50:07,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 13:50:07,335 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 13:50:07,336 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 13:50:07,336 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 13:50:07,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 13:50:07,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 13:50:07,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 13:50:07,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-22 13:50:07,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 13:50:07,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 13:50:07,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 13:50:07,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 13:50:07,606 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 13:50:07,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-22 13:50:07,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20010ad9e/d48f1272c8d14603bf9f4110f0ad5ef9/FLAG625a4c7d3 [2022-07-22 13:50:08,055 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 13:50:08,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-22 13:50:08,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20010ad9e/d48f1272c8d14603bf9f4110f0ad5ef9/FLAG625a4c7d3 [2022-07-22 13:50:08,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20010ad9e/d48f1272c8d14603bf9f4110f0ad5ef9 [2022-07-22 13:50:08,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 13:50:08,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 13:50:08,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 13:50:08,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 13:50:08,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 13:50:08,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3190dc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08, skipping insertion in model container [2022-07-22 13:50:08,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 13:50:08,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 13:50:08,198 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] [2022-07-22 13:50:08,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:50:08,266 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 13:50:08,278 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] [2022-07-22 13:50:08,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 13:50:08,318 INFO L208 MainTranslator]: Completed translation [2022-07-22 13:50:08,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08 WrapperNode [2022-07-22 13:50:08,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 13:50:08,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 13:50:08,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 13:50:08,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 13:50:08,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,374 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2022-07-22 13:50:08,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 13:50:08,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 13:50:08,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 13:50:08,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 13:50:08,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 13:50:08,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 13:50:08,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 13:50:08,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 13:50:08,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (1/1) ... [2022-07-22 13:50:08,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 13:50:08,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 13:50:08,489 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) [2022-07-22 13:50:08,517 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 [2022-07-22 13:50:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 13:50:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-22 13:50:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-22 13:50:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 13:50:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-07-22 13:50:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 13:50:08,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 13:50:08,632 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 13:50:08,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 13:50:11,397 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 13:50:11,402 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 13:50:11,402 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 13:50:11,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:50:11 BoogieIcfgContainer [2022-07-22 13:50:11,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 13:50:11,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 13:50:11,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 13:50:11,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 13:50:11,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:50:08" (1/3) ... [2022-07-22 13:50:11,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da57ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:50:11, skipping insertion in model container [2022-07-22 13:50:11,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:50:08" (2/3) ... [2022-07-22 13:50:11,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da57ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:50:11, skipping insertion in model container [2022-07-22 13:50:11,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:50:11" (3/3) ... [2022-07-22 13:50:11,412 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-22 13:50:11,423 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 13:50:11,423 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 13:50:11,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 13:50:11,500 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@6515672a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f76bed2 [2022-07-22 13:50:11,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 13:50:11,503 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) [2022-07-22 13:50:11,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 13:50:11,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:50:11,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:50:11,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:50:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:50:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-22 13:50:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:50:11,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939281921] [2022-07-22 13:50:11,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:50:11,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:50:11,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:50:11,539 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) [2022-07-22 13:50:11,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 13:50:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:50:13,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 13:50:14,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:50:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:50:14,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:50:14,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:50:14,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939281921] [2022-07-22 13:50:14,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939281921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:50:14,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:50:14,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 13:50:14,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619722252] [2022-07-22 13:50:14,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:50:14,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 13:50:14,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:50:14,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 13:50:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 13:50:14,053 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) [2022-07-22 13:50:14,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:50:14,064 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-22 13:50:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 13:50:14,066 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 [2022-07-22 13:50:14,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:50:14,071 INFO L225 Difference]: With dead ends: 30 [2022-07-22 13:50:14,071 INFO L226 Difference]: Without dead ends: 14 [2022-07-22 13:50:14,074 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 [2022-07-22 13:50:14,077 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 [2022-07-22 13:50:14,079 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] [2022-07-22 13:50:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-22 13:50:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-22 13:50:14,103 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) [2022-07-22 13:50:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-22 13:50:14,105 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-22 13:50:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:50:14,106 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-22 13:50:14,106 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) [2022-07-22 13:50:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-22 13:50:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 13:50:14,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:50:14,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:50:14,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 13:50:14,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:50:14,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:50:14,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:50:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-22 13:50:14,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:50:14,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904910225] [2022-07-22 13:50:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:50:14,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:50:14,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:50:14,334 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) [2022-07-22 13:50:14,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 13:50:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:50:16,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 13:50:16,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:50:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 13:50:17,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 13:50:17,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 13:50:17,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904910225] [2022-07-22 13:50:17,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904910225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 13:50:17,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 13:50:17,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 13:50:17,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449763008] [2022-07-22 13:50:17,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 13:50:17,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 13:50:17,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 13:50:17,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 13:50:17,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 13:50:17,215 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) [2022-07-22 13:50:20,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 13:50:20,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 13:50:20,393 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-22 13:50:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 13:50:20,828 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 [2022-07-22 13:50:20,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 13:50:20,829 INFO L225 Difference]: With dead ends: 28 [2022-07-22 13:50:20,829 INFO L226 Difference]: Without dead ends: 14 [2022-07-22 13:50:20,829 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 [2022-07-22 13:50:20,830 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-22 13:50:20,830 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] [2022-07-22 13:50:20,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-22 13:50:20,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-22 13:50:20,832 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) [2022-07-22 13:50:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-22 13:50:20,832 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-22 13:50:20,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 13:50:20,832 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-22 13:50:20,832 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) [2022-07-22 13:50:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-22 13:50:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 13:50:20,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 13:50:20,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 13:50:20,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 13:50:21,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 13:50:21,044 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 13:50:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 13:50:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-22 13:50:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 13:50:21,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836675260] [2022-07-22 13:50:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 13:50:21,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 13:50:21,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 13:50:21,055 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) [2022-07-22 13:50:21,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 13:50:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 13:50:46,276 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2022-07-22 13:50:46,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 13:50:49,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:50:49,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:50:49,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:50:49,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:50:49,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:50:49,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:50:49,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,387 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 13:50:49,390 INFO L244 Elim1Store]: Index analysis took 114 ms [2022-07-22 13:50:50,131 INFO L356 Elim1Store]: treesize reduction 459, result has 5.9 percent of original size [2022-07-22 13:50:50,132 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 [2022-07-22 13:50:50,238 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 [2022-07-22 13:50:53,975 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 [2022-07-22 13:51:09,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:51:09,114 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 [2022-07-22 13:51:09,196 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 [2022-07-22 13:51:09,955 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-22 13:51:09,956 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 [2022-07-22 13:51:16,430 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (bvadd |~#P~0.offset| (_ bv4 32)) (_ bv0 32)) [2022-07-22 13:51:16,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 13:51:18,438 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)) [2022-07-22 13:51:20,447 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)) [2022-07-22 13:51:20,448 INFO L244 Elim1Store]: Index analysis took 6024 ms [2022-07-22 13:51:22,457 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|)) [2022-07-22 13:51:24,460 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|)) [2022-07-22 13:51:26,463 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)) [2022-07-22 13:51:28,467 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)) [2022-07-22 13:51:30,476 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)) [2022-07-22 13:51:32,478 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)) [2022-07-22 13:51:32,557 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 [2022-07-22 13:53:58,330 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 [2022-07-22 13:53:59,136 INFO L356 Elim1Store]: treesize reduction 472, result has 0.2 percent of original size [2022-07-22 13:53:59,136 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