./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 eb692b52 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-?-eb692b5 [2022-07-19 13:37:23,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:37:23,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:37:23,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:37:23,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:37:23,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:37:23,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:37:23,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:37:23,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:37:23,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:37:23,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:37:23,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:37:23,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:37:23,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:37:23,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:37:23,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:37:23,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:37:23,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:37:23,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:37:23,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:37:23,084 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:37:23,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:37:23,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:37:23,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:37:23,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:37:23,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:37:23,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:37:23,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:37:23,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:37:23,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:37:23,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:37:23,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:37:23,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:37:23,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:37:23,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:37:23,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:37:23,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:37:23,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:37:23,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:37:23,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:37:23,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:37:23,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:37:23,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:37:23,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:37:23,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:37:23,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:37:23,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:37:23,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:37:23,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:37:23,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:37:23,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:37:23,136 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:37:23,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:37:23,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:37:23,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:37:23,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:37:23,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:37:23,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:37:23,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:37:23,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:37:23,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:37:23,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:37:23,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:37:23,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:37:23,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-19 13:37:23,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:37:23,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:37:23,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:37:23,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:37:23,350 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:37:23,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-19 13:37:23,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db786a565/ac590c99f27c46bc8f97fcc4168c7d49/FLAG39f3be80c [2022-07-19 13:37:23,737 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:37:23,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-19 13:37:23,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db786a565/ac590c99f27c46bc8f97fcc4168c7d49/FLAG39f3be80c [2022-07-19 13:37:23,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db786a565/ac590c99f27c46bc8f97fcc4168c7d49 [2022-07-19 13:37:23,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:37:23,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:37:23,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:37:23,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:37:23,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:37:23,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:37:23" (1/1) ... [2022-07-19 13:37:23,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9ff086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:23, skipping insertion in model container [2022-07-19 13:37:23,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:37:23" (1/1) ... [2022-07-19 13:37:23,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:37:23,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:37:23,924 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] [2022-07-19 13:37:23,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:37:23,971 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:37:23,982 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] [2022-07-19 13:37:24,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:37:24,018 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:37:24,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24 WrapperNode [2022-07-19 13:37:24,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:37:24,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:37:24,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:37:24,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:37:24,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,069 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2022-07-19 13:37:24,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:37:24,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:37:24,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:37:24,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:37:24,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:37:24,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:37:24,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:37:24,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:37:24,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (1/1) ... [2022-07-19 13:37:24,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:37:24,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:37:24,181 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) [2022-07-19 13:37:24,224 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 [2022-07-19 13:37:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:37:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:37:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 13:37:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 13:37:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:37:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:37:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-19 13:37:24,293 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:37:24,294 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:37:24,477 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:37:24,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:37:24,492 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 13:37:24,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:37:24 BoogieIcfgContainer [2022-07-19 13:37:24,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:37:24,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:37:24,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:37:24,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:37:24,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:37:23" (1/3) ... [2022-07-19 13:37:24,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c62ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:37:24, skipping insertion in model container [2022-07-19 13:37:24,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:24" (2/3) ... [2022-07-19 13:37:24,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55c62ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:37:24, skipping insertion in model container [2022-07-19 13:37:24,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:37:24" (3/3) ... [2022-07-19 13:37:24,501 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-19 13:37:24,511 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:37:24,525 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:37:24,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:37:24,582 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@5b0c7239, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5cc7e6ff [2022-07-19 13:37:24,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:37:24,592 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) [2022-07-19 13:37:24,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:37:24,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:37:24,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:37:24,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:37:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:37:24,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-19 13:37:24,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:37:24,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017162767] [2022-07-19 13:37:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:37:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:37:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:37:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:37:24,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:37:24,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017162767] [2022-07-19 13:37:24,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017162767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:37:24,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:37:24,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:37:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28147178] [2022-07-19 13:37:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:37:24,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:37:24,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:37:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:37:24,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:37:24,891 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) [2022-07-19 13:37:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:37:24,901 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-19 13:37:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:37:24,903 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 [2022-07-19 13:37:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:37:24,916 INFO L225 Difference]: With dead ends: 30 [2022-07-19 13:37:24,917 INFO L226 Difference]: Without dead ends: 14 [2022-07-19 13:37:24,919 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 [2022-07-19 13:37:24,923 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 [2022-07-19 13:37:24,924 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] [2022-07-19 13:37:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-19 13:37:24,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-19 13:37:24,946 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) [2022-07-19 13:37:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-19 13:37:24,947 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-19 13:37:24,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:37:24,948 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-19 13:37:24,948 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) [2022-07-19 13:37:24,948 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-19 13:37:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:37:24,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:37:24,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:37:24,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:37:24,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:37:24,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:37:24,950 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-19 13:37:24,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:37:24,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996593892] [2022-07-19 13:37:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:37:24,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:37:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:37:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:37:25,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:37:25,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996593892] [2022-07-19 13:37:25,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996593892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:37:25,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:37:25,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 13:37:25,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505153826] [2022-07-19 13:37:25,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:37:25,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 13:37:25,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:37:25,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 13:37:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:37:25,143 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) [2022-07-19 13:37:25,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:37:25,173 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-19 13:37:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 13:37:25,174 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 [2022-07-19 13:37:25,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:37:25,175 INFO L225 Difference]: With dead ends: 28 [2022-07-19 13:37:25,175 INFO L226 Difference]: Without dead ends: 14 [2022-07-19 13:37:25,176 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 [2022-07-19 13:37:25,177 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 [2022-07-19 13:37:25,177 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] [2022-07-19 13:37:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-19 13:37:25,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-19 13:37:25,182 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) [2022-07-19 13:37:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-19 13:37:25,183 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-19 13:37:25,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:37:25,184 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-19 13:37:25,185 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) [2022-07-19 13:37:25,185 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-19 13:37:25,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:37:25,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:37:25,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:37:25,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:37:25,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:37:25,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:37:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-19 13:37:25,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:37:25,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260695391] [2022-07-19 13:37:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:37:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:37:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:37:25,245 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:37:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:37:25,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:37:25,306 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:37:25,306 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:37:25,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 13:37:25,310 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 13:37:25,313 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:37:25,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:37:25 BoogieIcfgContainer [2022-07-19 13:37:25,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:37:25,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:37:25,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:37:25,340 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:37:25,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:37:24" (3/4) ... [2022-07-19 13:37:25,343 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:37:25,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:37:25,344 INFO L158 Benchmark]: Toolchain (without parser) took 1585.43ms. Allocated memory was 107.0MB in the beginning and 153.1MB in the end (delta: 46.1MB). Free memory was 76.7MB in the beginning and 88.5MB in the end (delta: -11.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-07-19 13:37:25,344 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 62.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:37:25,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.91ms. Allocated memory was 107.0MB in the beginning and 153.1MB in the end (delta: 46.1MB). Free memory was 76.5MB in the beginning and 126.1MB in the end (delta: -49.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:37:25,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.43ms. Allocated memory is still 153.1MB. Free memory was 126.1MB in the beginning and 124.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:37:25,345 INFO L158 Benchmark]: Boogie Preprocessor took 46.49ms. Allocated memory is still 153.1MB. Free memory was 124.1MB in the beginning and 122.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:37:25,345 INFO L158 Benchmark]: RCFGBuilder took 376.78ms. Allocated memory is still 153.1MB. Free memory was 122.5MB in the beginning and 107.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 13:37:25,346 INFO L158 Benchmark]: TraceAbstraction took 844.09ms. Allocated memory is still 153.1MB. Free memory was 107.3MB in the beginning and 88.5MB in the end (delta: 18.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-07-19 13:37:25,346 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 153.1MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:37:25,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 62.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.91ms. Allocated memory was 107.0MB in the beginning and 153.1MB in the end (delta: 46.1MB). Free memory was 76.5MB in the beginning and 126.1MB in the end (delta: -49.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.43ms. Allocated memory is still 153.1MB. Free memory was 126.1MB in the beginning and 124.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.49ms. Allocated memory is still 153.1MB. Free memory was 124.1MB in the beginning and 122.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.78ms. Allocated memory is still 153.1MB. Free memory was 122.5MB in the beginning and 107.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 844.09ms. Allocated memory is still 153.1MB. Free memory was 107.3MB in the beginning and 88.5MB in the end (delta: 18.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 153.1MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28. Possible FailurePath: [L16] double A1[3] = { 1, 0.5179422053046, 1.0 }; [L17] double b1[2] = { 1.470767736573, 0.5522073405779 }; [L18] double A2[3] = { 1, 1.633101801841, 1.0 }; [L19] double b2[2] = { 1.742319554830, 0.820939679242 }; [L21] double D1[2], D2[2]; [L22] double P, X; VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L43] D1[0] = 0. [L43] D1[1] = 0. [L44] D2[0] = 0. [L44] D2[1] = 0. [L45] P = 0. VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L47] COND TRUE 1 [L49] X = __VERIFIER_nondet_double() [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. VAL [\read(X)=63, \read(X)=63, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] CALL assume_abort_if_not(X >= -10. && X <= 10.) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=1, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] RET assume_abort_if_not(X >= -10. && X <= 10.) [L52] CALL iir4(&X, &P) [L26] double x1, y1, t1, t2; [L28] EXPR \read(*x) [L28] x1 = 0.0117749388721091 * *x [L30] EXPR b1[0] [L30] EXPR D1[0] [L30] EXPR b1[1] [L30] EXPR D1[1] [L30] t1 = x1 + b1[0]*D1[0] - b1[1]*D1[1] [L31] EXPR A1[0] [L31] EXPR A1[1] [L31] EXPR D1[0] [L31] EXPR A1[2] [L31] EXPR D1[1] [L31] y1 = A1[0]*t1 - A1[1]*D1[0] + A1[2]*D1[1] [L32] EXPR D1[0] [L32] D1[1] = D1[0] [L33] D1[0] = t1 [L35] EXPR b2[0] [L35] EXPR D2[0] [L35] EXPR b2[1] [L35] EXPR D2[1] [L35] t2 = y1 + b2[0]*D2[0] - b2[1]*D2[1] [L36] EXPR A2[0] [L36] EXPR A2[1] [L36] EXPR D2[0] [L36] EXPR A2[2] [L36] EXPR D2[1] [L36] *y = A2[0]*t2 - A2[1]*D2[0] + A2[2]*D2[1] [L37] EXPR D2[0] [L37] D2[1] = D2[0] [L38] D2[0] = t2 VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, t1=51, t2=58, x={11:0}, X={11:0}, x={11:0}, y={10:0}, y={10:0}] [L52] RET iir4(&X, &P) [L54] EXPR \read(P) [L54] EXPR P >= -1e30 && P <= 1e30 VAL [\read(P)=59, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, P >= -1e30 && P <= 1e30=0, X={11:0}] [L54] CALL __VERIFIER_assert(P >= -1e30 && P <= 1e30) [L13] COND TRUE !(cond) VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L13] reach_error() VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s 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 [2022-07-19 13:37:25,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter_iir.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:37:27,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:37:27,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:37:27,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:37:27,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:37:27,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:37:27,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:37:27,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:37:27,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:37:27,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:37:27,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:37:27,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:37:27,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:37:27,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:37:27,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:37:27,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:37:27,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:37:27,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:37:27,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:37:27,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:37:27,227 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:37:27,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:37:27,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:37:27,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:37:27,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:37:27,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:37:27,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:37:27,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:37:27,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:37:27,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:37:27,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:37:27,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:37:27,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:37:27,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:37:27,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:37:27,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:37:27,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:37:27,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:37:27,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:37:27,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:37:27,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:37:27,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:37:27,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:37:27,274 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:37:27,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:37:27,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:37:27,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:37:27,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:37:27,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:37:27,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:37:27,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:37:27,277 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:37:27,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:37:27,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:37:27,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:37:27,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:37:27,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:37:27,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:37:27,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:37:27,283 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:37:27,283 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:37:27,283 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:37:27,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:37:27,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:37:27,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:37:27,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:37:27,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:37:27,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:37:27,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:37:27,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:37:27,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:37:27,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:37:27,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:37:27,285 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:37:27,285 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:37:27,286 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:37:27,286 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:37:27,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:37:27,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:37:27,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2022-07-19 13:37:27,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:37:27,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:37:27,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:37:27,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:37:27,559 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:37:27,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-19 13:37:27,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f963acd/a25e3ccadf2745969e59787c4776c10e/FLAG1dca4cf2b [2022-07-19 13:37:27,920 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:37:27,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2022-07-19 13:37:27,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f963acd/a25e3ccadf2745969e59787c4776c10e/FLAG1dca4cf2b [2022-07-19 13:37:28,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f963acd/a25e3ccadf2745969e59787c4776c10e [2022-07-19 13:37:28,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:37:28,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:37:28,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:37:28,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:37:28,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:37:28,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f30283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28, skipping insertion in model container [2022-07-19 13:37:28,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:37:28,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:37:28,454 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] [2022-07-19 13:37:28,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:37:28,481 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:37:28,514 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] [2022-07-19 13:37:28,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:37:28,562 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:37:28,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28 WrapperNode [2022-07-19 13:37:28,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:37:28,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:37:28,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:37:28,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:37:28,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,595 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2022-07-19 13:37:28,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:37:28,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:37:28,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:37:28,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:37:28,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:37:28,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:37:28,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:37:28,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:37:28,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (1/1) ... [2022-07-19 13:37:28,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:37:28,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:37:28,661 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) [2022-07-19 13:37:28,669 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 [2022-07-19 13:37:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:37:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-19 13:37:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-19 13:37:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:37:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-07-19 13:37:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:37:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:37:28,761 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:37:28,762 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:37:31,560 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:37:31,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:37:31,564 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 13:37:31,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:37:31 BoogieIcfgContainer [2022-07-19 13:37:31,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:37:31,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:37:31,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:37:31,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:37:31,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:37:28" (1/3) ... [2022-07-19 13:37:31,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df95915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:37:31, skipping insertion in model container [2022-07-19 13:37:31,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:37:28" (2/3) ... [2022-07-19 13:37:31,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df95915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:37:31, skipping insertion in model container [2022-07-19 13:37:31,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:37:31" (3/3) ... [2022-07-19 13:37:31,571 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2022-07-19 13:37:31,589 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:37:31,590 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:37:31,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:37:31,635 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@31c69a2d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@232a0cc2 [2022-07-19 13:37:31,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:37:31,652 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) [2022-07-19 13:37:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:37:31,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:37:31,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:37:31,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:37:31,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:37:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2022-07-19 13:37:31,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:37:31,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305429132] [2022-07-19 13:37:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:37:31,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:37:31,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:37:31,689 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) [2022-07-19 13:37:31,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:37:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:37:34,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:37:34,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:37:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:37:34,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:37:34,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:37:34,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305429132] [2022-07-19 13:37:34,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305429132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:37:34,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:37:34,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:37:34,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462481189] [2022-07-19 13:37:34,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:37:34,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:37:34,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:37:34,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:37:34,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:37:34,555 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) [2022-07-19 13:37:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:37:34,564 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-07-19 13:37:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:37:34,566 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 [2022-07-19 13:37:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:37:34,578 INFO L225 Difference]: With dead ends: 30 [2022-07-19 13:37:34,578 INFO L226 Difference]: Without dead ends: 14 [2022-07-19 13:37:34,581 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 [2022-07-19 13:37:34,584 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 [2022-07-19 13:37:34,585 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] [2022-07-19 13:37:34,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-19 13:37:34,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-19 13:37:34,602 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) [2022-07-19 13:37:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-19 13:37:34,604 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2022-07-19 13:37:34,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:37:34,605 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-19 13:37:34,605 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) [2022-07-19 13:37:34,605 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-07-19 13:37:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:37:34,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:37:34,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:37:34,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 13:37:34,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:37:34,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:37:34,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:37:34,820 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2022-07-19 13:37:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:37:34,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552396219] [2022-07-19 13:37:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:37:34,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:37:34,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:37:34,823 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) [2022-07-19 13:37:34,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 13:37:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:37:37,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 13:37:37,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:37:37,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:37:37,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:37:37,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:37:37,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552396219] [2022-07-19 13:37:37,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552396219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:37:37,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:37:37,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 13:37:37,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493374650] [2022-07-19 13:37:37,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:37:37,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 13:37:37,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:37:37,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 13:37:37,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:37:37,488 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) [2022-07-19 13:37:40,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 13:37:40,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:37:40,681 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-07-19 13:37:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 13:37:41,115 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 [2022-07-19 13:37:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:37:41,115 INFO L225 Difference]: With dead ends: 28 [2022-07-19 13:37:41,115 INFO L226 Difference]: Without dead ends: 14 [2022-07-19 13:37:41,115 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 [2022-07-19 13:37:41,116 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-19 13:37:41,116 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] [2022-07-19 13:37:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-19 13:37:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-19 13:37:41,118 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) [2022-07-19 13:37:41,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-07-19 13:37:41,119 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2022-07-19 13:37:41,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:37:41,119 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-07-19 13:37:41,119 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) [2022-07-19 13:37:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-07-19 13:37:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:37:41,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:37:41,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:37:41,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 13:37:41,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:37:41,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:37:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:37:41,329 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2022-07-19 13:37:41,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:37:41,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175901481] [2022-07-19 13:37:41,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:37:41,329 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:37:41,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:37:41,331 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) [2022-07-19 13:37:41,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 13:38:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:38:05,845 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2022-07-19 13:38:05,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:38:08,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:08,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:08,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:08,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:08,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:08,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 13:38:08,940 INFO L244 Elim1Store]: Index analysis took 121 ms [2022-07-19 13:38:09,656 INFO L356 Elim1Store]: treesize reduction 459, result has 5.9 percent of original size [2022-07-19 13:38:09,657 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 [2022-07-19 13:38:09,769 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 [2022-07-19 13:38:13,479 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 [2022-07-19 13:38:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:28,751 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 [2022-07-19 13:38:28,857 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 [2022-07-19 13:38:29,598 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-19 13:38:29,598 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 [2022-07-19 13:38:36,037 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (bvadd |~#P~0.offset| (_ bv4 32)) (_ bv0 32)) [2022-07-19 13:38:36,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 13:38:38,043 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)) [2022-07-19 13:38:40,045 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)) [2022-07-19 13:38:40,045 INFO L244 Elim1Store]: Index analysis took 6013 ms [2022-07-19 13:38:42,049 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|)) [2022-07-19 13:38:44,051 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|)) [2022-07-19 13:38:46,055 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)) [2022-07-19 13:38:48,065 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)) [2022-07-19 13:38:49,128 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 [2022-07-19 13:41:14,962 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 [2022-07-19 13:41:15,781 INFO L356 Elim1Store]: treesize reduction 472, result has 0.2 percent of original size [2022-07-19 13:41:15,782 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