./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-17 06:32:20,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:32:20,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:32:20,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:32:20,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:32:20,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:32:20,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:32:20,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:32:20,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:32:20,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:32:20,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:32:20,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:32:20,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:32:20,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:32:20,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:32:20,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:32:20,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:32:20,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:32:20,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:32:20,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:32:20,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:32:20,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:32:20,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:32:20,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:32:20,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:32:20,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:32:20,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:32:20,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:32:20,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:32:20,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:32:20,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:32:20,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:32:20,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:32:20,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:32:20,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:32:20,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:32:20,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:32:20,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:32:20,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:32:20,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:32:20,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:32:20,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 06:32:20,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:32:20,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:32:20,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:32:20,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:32:20,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:32:20,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:32:20,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:32:20,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:32:20,995 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:32:20,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:32:20,996 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:32:20,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 06:32:20,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:32:20,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:32:20,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:32:20,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:32:20,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:32:20,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:32:20,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:32:20,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:32:20,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:32:20,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:32:20,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:32:20,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:32:20,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:32:20,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:32:20,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:32:21,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:32:21,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 06:32:21,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 06:32:21,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:32:21,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:32:21,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:32:21,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:32:21,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2021-12-17 06:32:21,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:32:21,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:32:21,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:32:21,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:32:21,246 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:32:21,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-17 06:32:21,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6834bad0b/9fc0f209c7b3432ab2a806ff7b0890df/FLAG0a6b68d33 [2021-12-17 06:32:21,765 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:32:21,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-17 06:32:21,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6834bad0b/9fc0f209c7b3432ab2a806ff7b0890df/FLAG0a6b68d33 [2021-12-17 06:32:21,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6834bad0b/9fc0f209c7b3432ab2a806ff7b0890df [2021-12-17 06:32:21,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:32:21,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:32:21,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:32:21,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:32:21,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:32:21,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:32:21" (1/1) ... [2021-12-17 06:32:21,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbf784d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:21, skipping insertion in model container [2021-12-17 06:32:21,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:32:21" (1/1) ... [2021-12-17 06:32:21,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:32:21,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:32:21,967 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] [2021-12-17 06:32:22,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:32:22,028 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:32:22,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c[583,596] [2021-12-17 06:32:22,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:32:22,091 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:32:22,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22 WrapperNode [2021-12-17 06:32:22,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:32:22,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:32:22,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:32:22,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:32:22,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,150 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2021-12-17 06:32:22,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:32:22,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:32:22,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:32:22,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:32:22,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:32:22,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:32:22,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:32:22,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:32:22,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (1/1) ... [2021-12-17 06:32:22,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:32:22,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:32:22,245 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) [2021-12-17 06:32:22,276 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 [2021-12-17 06:32:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:32:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 06:32:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 06:32:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 06:32:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:32:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:32:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-17 06:32:22,426 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:32:22,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:32:22,658 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:32:22,664 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:32:22,664 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 06:32:22,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:32:22 BoogieIcfgContainer [2021-12-17 06:32:22,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:32:22,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:32:22,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:32:22,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:32:22,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:32:21" (1/3) ... [2021-12-17 06:32:22,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b470f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:32:22, skipping insertion in model container [2021-12-17 06:32:22,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:22" (2/3) ... [2021-12-17 06:32:22,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b470f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:32:22, skipping insertion in model container [2021-12-17 06:32:22,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:32:22" (3/3) ... [2021-12-17 06:32:22,675 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2021-12-17 06:32:22,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:32:22,681 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 06:32:22,734 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:32:22,746 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 06:32:22,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 06:32:22,769 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) [2021-12-17 06:32:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 06:32:22,774 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:32:22,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:32:22,775 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:32:22,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:32:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2021-12-17 06:32:22,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:32:22,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439232896] [2021-12-17 06:32:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:32:22,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:32:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:32:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:32:23,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 06:32:23,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439232896] [2021-12-17 06:32:23,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439232896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:32:23,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:32:23,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 06:32:23,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537263387] [2021-12-17 06:32:23,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:32:23,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 06:32:23,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 06:32:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 06:32:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:32:23,069 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) [2021-12-17 06:32:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:32:23,082 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-12-17 06:32:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 06:32:23,084 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 [2021-12-17 06:32:23,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:32:23,091 INFO L225 Difference]: With dead ends: 30 [2021-12-17 06:32:23,091 INFO L226 Difference]: Without dead ends: 14 [2021-12-17 06:32:23,094 INFO L932 BasicCegarLoop]: 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 [2021-12-17 06:32:23,098 INFO L933 BasicCegarLoop]: 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 [2021-12-17 06:32:23,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 06:32:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-17 06:32:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-17 06:32:23,121 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) [2021-12-17 06:32:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-12-17 06:32:23,123 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2021-12-17 06:32:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:32:23,123 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-12-17 06:32:23,123 INFO L471 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) [2021-12-17 06:32:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-12-17 06:32:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 06:32:23,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:32:23,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:32:23,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 06:32:23,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:32:23,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:32:23,126 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2021-12-17 06:32:23,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:32:23,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21521742] [2021-12-17 06:32:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:32:23,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:32:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:32:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:32:23,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 06:32:23,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21521742] [2021-12-17 06:32:23,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21521742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:32:23,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:32:23,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 06:32:23,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138844965] [2021-12-17 06:32:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:32:23,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 06:32:23,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 06:32:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 06:32:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 06:32:23,323 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.4) 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) [2021-12-17 06:32:23,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:32:23,394 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-12-17 06:32:23,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 06:32:23,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) 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 [2021-12-17 06:32:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:32:23,397 INFO L225 Difference]: With dead ends: 28 [2021-12-17 06:32:23,397 INFO L226 Difference]: Without dead ends: 14 [2021-12-17 06:32:23,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-17 06:32:23,399 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 06:32:23,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 06:32:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-17 06:32:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-17 06:32:23,406 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) [2021-12-17 06:32:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-12-17 06:32:23,407 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-12-17 06:32:23,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:32:23,408 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-12-17 06:32:23,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) 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) [2021-12-17 06:32:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-12-17 06:32:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 06:32:23,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:32:23,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:32:23,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 06:32:23,413 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:32:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:32:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2021-12-17 06:32:23,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 06:32:23,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356280929] [2021-12-17 06:32:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:32:23,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 06:32:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:32:23,564 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 06:32:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 06:32:23,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 06:32:23,633 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 06:32:23,634 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 06:32:23,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 06:32:23,639 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-17 06:32:23,641 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 06:32:23,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 06:32:23 BoogieIcfgContainer [2021-12-17 06:32:23,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 06:32:23,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 06:32:23,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 06:32:23,679 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 06:32:23,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:32:22" (3/4) ... [2021-12-17 06:32:23,682 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 06:32:23,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 06:32:23,683 INFO L158 Benchmark]: Toolchain (without parser) took 1891.98ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 47.7MB in the end (delta: 29.1MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,684 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 06:32:23,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.28ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 81.0MB in the end (delta: -4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.13ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 78.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,685 INFO L158 Benchmark]: Boogie Preprocessor took 50.51ms. Allocated memory is still 104.9MB. Free memory was 78.9MB in the beginning and 76.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,686 INFO L158 Benchmark]: RCFGBuilder took 463.59ms. Allocated memory is still 104.9MB. Free memory was 76.8MB in the beginning and 62.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,686 INFO L158 Benchmark]: TraceAbstraction took 1010.72ms. Allocated memory is still 104.9MB. Free memory was 61.4MB in the beginning and 48.5MB in the end (delta: 13.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,687 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 104.9MB. Free memory was 48.5MB in the beginning and 47.7MB in the end (delta: 726.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 06:32:23,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.28ms. Allocated memory is still 104.9MB. Free memory was 76.9MB in the beginning and 81.0MB in the end (delta: -4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.13ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 78.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.51ms. Allocated memory is still 104.9MB. Free memory was 78.9MB in the beginning and 76.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.59ms. Allocated memory is still 104.9MB. Free memory was 76.8MB in the beginning and 62.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1010.72ms. Allocated memory is still 104.9MB. Free memory was 61.4MB in the beginning and 48.5MB in the end (delta: 13.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 104.9MB. Free memory was 48.5MB in the beginning and 47.7MB in the end (delta: 726.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28. Possible FailurePath: [L16] double A1[3] = { 1, 0.5179422053046, 1.0 }; [L17] double b1[2] = { 1.470767736573, 0.5522073405779 }; [L18] double A2[3] = { 1, 1.633101801841, 1.0 }; [L19] double b2[2] = { 1.742319554830, 0.820939679242 }; [L21] double D1[2], D2[2]; [L22] double P, X; VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L43] D1[0] = 0. [L43] D1[1] = 0. [L44] D2[0] = 0. [L44] D2[1] = 0. [L45] P = 0. VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L47] COND TRUE 1 [L49] X = __VERIFIER_nondet_double() [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. VAL [\read(X)=63, \read(X)=63, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] CALL assume_abort_if_not(X >= -10. && X <= 10.) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=1, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] RET assume_abort_if_not(X >= -10. && X <= 10.) [L52] CALL iir4(&X, &P) [L26] double x1, y1, t1, t2; [L28] EXPR \read(*x) [L28] x1 = 0.0117749388721091 * *x [L30] EXPR b1[0] [L30] EXPR D1[0] [L30] EXPR b1[1] [L30] EXPR D1[1] [L30] t1 = x1 + b1[0]*D1[0] - b1[1]*D1[1] [L31] EXPR A1[0] [L31] EXPR A1[1] [L31] EXPR D1[0] [L31] EXPR A1[2] [L31] EXPR D1[1] [L31] y1 = A1[0]*t1 - A1[1]*D1[0] + A1[2]*D1[1] [L32] EXPR D1[0] [L32] D1[1] = D1[0] [L33] D1[0] = t1 [L35] EXPR b2[0] [L35] EXPR D2[0] [L35] EXPR b2[1] [L35] EXPR D2[1] [L35] t2 = y1 + b2[0]*D2[0] - b2[1]*D2[1] [L36] EXPR A2[0] [L36] EXPR A2[1] [L36] EXPR D2[0] [L36] EXPR A2[2] [L36] EXPR D2[1] [L36] *y = A2[0]*t2 - A2[1]*D2[0] + A2[2]*D2[1] [L37] EXPR D2[0] [L37] D2[1] = D2[0] [L38] D2[0] = t2 VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, t1=51, t2=58, x={11:0}, x={11:0}, X={11:0}, y={10:0}, y={10:0}] [L52] RET iir4(&X, &P) [L54] EXPR \read(P) [L54] EXPR P >= -1e30 && P <= 1e30 VAL [\read(P)=59, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, P >= -1e30 && P <= 1e30=0, X={11:0}] [L54] CALL __VERIFIER_assert(P >= -1e30 && P <= 1e30) [L13] COND TRUE !(cond) VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L13] reach_error() VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 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 [2021-12-17 06:32:23,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter_iir.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 06:32:25,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 06:32:25,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 06:32:25,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 06:32:25,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 06:32:25,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 06:32:25,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 06:32:25,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 06:32:25,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 06:32:25,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 06:32:25,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 06:32:25,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 06:32:25,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 06:32:25,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 06:32:25,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 06:32:25,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 06:32:25,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 06:32:25,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 06:32:25,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 06:32:25,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 06:32:25,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 06:32:25,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 06:32:25,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 06:32:25,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 06:32:25,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 06:32:25,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 06:32:25,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 06:32:25,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 06:32:25,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 06:32:25,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 06:32:25,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 06:32:25,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 06:32:25,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 06:32:25,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 06:32:25,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 06:32:25,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 06:32:25,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 06:32:25,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 06:32:25,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 06:32:25,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 06:32:25,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 06:32:25,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 06:32:25,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 06:32:25,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 06:32:25,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 06:32:25,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 06:32:25,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 06:32:25,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 06:32:25,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 06:32:25,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 06:32:25,879 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 06:32:25,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 06:32:25,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 06:32:25,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 06:32:25,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 06:32:25,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 06:32:25,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 06:32:25,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 06:32:25,881 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 06:32:25,881 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 06:32:25,881 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 06:32:25,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 06:32:25,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 06:32:25,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 06:32:25,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 06:32:25,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 06:32:25,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 06:32:25,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 06:32:25,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:32:25,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 06:32:25,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 06:32:25,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 06:32:25,883 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 06:32:25,884 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 06:32:25,884 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 06:32:25,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 06:32:25,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 06:32:25,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 06:32:25,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 06:32:25,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2021-12-17 06:32:26,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 06:32:26,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 06:32:26,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 06:32:26,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 06:32:26,291 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 06:32:26,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-17 06:32:26,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fa3c5280/4e7a2d7accdb40c39af5c6b884c819ce/FLAG63da80e70 [2021-12-17 06:32:26,843 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 06:32:26,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-17 06:32:26,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fa3c5280/4e7a2d7accdb40c39af5c6b884c819ce/FLAG63da80e70 [2021-12-17 06:32:27,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fa3c5280/4e7a2d7accdb40c39af5c6b884c819ce [2021-12-17 06:32:27,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 06:32:27,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 06:32:27,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 06:32:27,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 06:32:27,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 06:32:27,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27938024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27, skipping insertion in model container [2021-12-17 06:32:27,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 06:32:27,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 06:32:27,454 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] [2021-12-17 06:32:27,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:32:27,517 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 06:32:27,554 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] [2021-12-17 06:32:27,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 06:32:27,602 INFO L208 MainTranslator]: Completed translation [2021-12-17 06:32:27,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27 WrapperNode [2021-12-17 06:32:27,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 06:32:27,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 06:32:27,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 06:32:27,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 06:32:27,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,667 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2021-12-17 06:32:27,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 06:32:27,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 06:32:27,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 06:32:27,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 06:32:27,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 06:32:27,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 06:32:27,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 06:32:27,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 06:32:27,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (1/1) ... [2021-12-17 06:32:27,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 06:32:27,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 06:32:27,766 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) [2021-12-17 06:32:27,795 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 [2021-12-17 06:32:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 06:32:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-17 06:32:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-17 06:32:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 06:32:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-17 06:32:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 06:32:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 06:32:27,917 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 06:32:27,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 06:32:30,816 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 06:32:30,822 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 06:32:30,822 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 06:32:30,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:32:30 BoogieIcfgContainer [2021-12-17 06:32:30,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 06:32:30,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 06:32:30,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 06:32:30,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 06:32:30,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 06:32:27" (1/3) ... [2021-12-17 06:32:30,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a1a99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:32:30, skipping insertion in model container [2021-12-17 06:32:30,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 06:32:27" (2/3) ... [2021-12-17 06:32:30,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a1a99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 06:32:30, skipping insertion in model container [2021-12-17 06:32:30,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 06:32:30" (3/3) ... [2021-12-17 06:32:30,836 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2021-12-17 06:32:30,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 06:32:30,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 06:32:30,893 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 06:32:30,899 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 06:32:30,899 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 06:32:30,909 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) [2021-12-17 06:32:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 06:32:30,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:32:30,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:32:30,915 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:32:30,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:32:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2021-12-17 06:32:30,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:32:30,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944848293] [2021-12-17 06:32:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:32:30,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:32:30,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:32:30,941 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) [2021-12-17 06:32:30,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 06:32:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:32:33,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 06:32:33,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:32:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:32:33,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 06:32:33,824 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:32:33,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944848293] [2021-12-17 06:32:33,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944848293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:32:33,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:32:33,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 06:32:33,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192279704] [2021-12-17 06:32:33,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:32:33,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 06:32:33,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:32:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 06:32:33,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 06:32:33,869 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) [2021-12-17 06:32:33,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:32:33,883 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-12-17 06:32:33,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 06:32:33,885 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 [2021-12-17 06:32:33,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:32:33,891 INFO L225 Difference]: With dead ends: 30 [2021-12-17 06:32:33,891 INFO L226 Difference]: Without dead ends: 14 [2021-12-17 06:32:33,894 INFO L932 BasicCegarLoop]: 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 [2021-12-17 06:32:33,897 INFO L933 BasicCegarLoop]: 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 [2021-12-17 06:32:33,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 06:32:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-17 06:32:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-17 06:32:33,921 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) [2021-12-17 06:32:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-12-17 06:32:33,922 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2021-12-17 06:32:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:32:33,923 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-12-17 06:32:33,923 INFO L471 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) [2021-12-17 06:32:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-12-17 06:32:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 06:32:33,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:32:33,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:32:34,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-17 06:32:34,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:32:34,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:32:34,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:32:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2021-12-17 06:32:34,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:32:34,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088080905] [2021-12-17 06:32:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:32:34,146 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:32:34,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:32:34,148 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) [2021-12-17 06:32:34,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 06:32:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:32:36,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 06:32:36,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:32:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 06:32:37,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 06:32:37,192 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 06:32:37,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088080905] [2021-12-17 06:32:37,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088080905] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 06:32:37,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 06:32:37,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 06:32:37,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934185142] [2021-12-17 06:32:37,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 06:32:37,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 06:32:37,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 06:32:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 06:32:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 06:32:37,195 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) [2021-12-17 06:32:40,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-17 06:32:40,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 06:32:40,451 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-12-17 06:32:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 06:32:40,880 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 [2021-12-17 06:32:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 06:32:40,880 INFO L225 Difference]: With dead ends: 28 [2021-12-17 06:32:40,880 INFO L226 Difference]: Without dead ends: 14 [2021-12-17 06:32:40,881 INFO L932 BasicCegarLoop]: 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 [2021-12-17 06:32:40,882 INFO L933 BasicCegarLoop]: 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 [2021-12-17 06:32:40,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-12-17 06:32:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-17 06:32:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-17 06:32:40,885 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) [2021-12-17 06:32:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-12-17 06:32:40,885 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-12-17 06:32:40,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 06:32:40,885 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-12-17 06:32:40,885 INFO L471 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) [2021-12-17 06:32:40,886 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-12-17 06:32:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 06:32:40,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 06:32:40,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 06:32:40,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 06:32:41,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 06:32:41,087 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 06:32:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 06:32:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2021-12-17 06:32:41,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 06:32:41,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483615344] [2021-12-17 06:32:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 06:32:41,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 06:32:41,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 06:32:41,094 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) [2021-12-17 06:32:41,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 06:33:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 06:33:27,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2021-12-17 06:33:27,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 06:33:30,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:30,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:31,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-17 06:33:31,140 INFO L244 Elim1Store]: Index analysis took 224 ms [2021-12-17 06:33:32,627 INFO L354 Elim1Store]: treesize reduction 510, result has 10.1 percent of original size [2021-12-17 06:33:32,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 25 disjoint index pairs (out of 120 index pairs), introduced 17 new quantified variables, introduced 22 case distinctions, treesize of input 244 treesize of output 287 [2021-12-17 06:33:32,748 INFO L388 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 [2021-12-17 06:33:36,561 INFO L388 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 [2021-12-17 06:33:54,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:33:54,050 INFO L388 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 1222 treesize of output 948 [2021-12-17 06:33:55,156 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-12-17 06:33:55,157 INFO L388 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 825 treesize of output 727 [2021-12-17 06:33:55,953 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-12-17 06:33:55,953 INFO L388 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 765 treesize of output 667 [2021-12-17 06:34:02,440 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (_ bv0 32) (bvadd |~#P~0.offset| (_ bv4 32))) [2021-12-17 06:34:02,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-17 06:34:04,443 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_22_6) ((_ extract 63 32) v_skolemized_v_prenex_22_6)) [2021-12-17 06:34:06,449 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_22_6) ((_ extract 63 32) v_skolemized_v_prenex_22_6)) [2021-12-17 06:34:06,450 INFO L244 Elim1Store]: Index analysis took 6012 ms [2021-12-17 06:34:08,494 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|) ((_ extract 31 0) v_skolemized_v_prenex_22_6)) [2021-12-17 06:34:10,498 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 31 0) v_skolemized_v_prenex_22_6)) [2021-12-17 06:34:12,503 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_22_6)) [2021-12-17 06:34:14,510 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_22_6)) [2021-12-17 06:34:16,513 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |~#P~0.base|) (bvadd |~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_22_6)) [2021-12-17 06:34:18,517 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |~#P~0.base|) (bvadd |~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_22_6)) [2021-12-17 06:34:18,597 INFO L388 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 [2021-12-17 06:39:27,676 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse36 (let ((.cse40 (let ((.cse41 (select |c_#memory_int| (_ bv11 32)))) (concat (select .cse41 (_ bv4 32)) (select .cse41 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse40) ((_ extract 62 52) .cse40) ((_ extract 51 0) .cse40)))) (.cse37 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= |c_~#P~0.base| (_ bv10 32)) (exists ((|~#b2~0.offset| (_ BitVec 32)) (|~#A1~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_1_6 (_ BitVec 64)) (|~#b1~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_12_6 (_ BitVec 64)) (v_skolemized_v_prenex_22_6 (_ BitVec 64)) (v_skolemized_v_prenex_4_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_17_6 (_ BitVec 64)) (v_skolemized_v_prenex_19_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 64)) (v_skolemized_v_prenex_15_6 (_ BitVec 64)) (v_skolemized_v_prenex_16_6 (_ BitVec 64))) (let ((.cse27 (select |c_#memory_int| (_ bv7 32))) (.cse17 (select |c_#memory_int| (_ bv5 32))) (.cse22 (select |c_#memory_int| (_ bv4 32)))) (let ((.cse0 (select .cse22 |~#A1~0.offset|)) (.cse5 (select .cse17 (bvadd |~#b1~0.offset| (_ bv12 32)))) (.cse1 (select .cse17 (bvadd |~#b1~0.offset| (_ bv8 32)))) (.cse4 (select .cse22 (bvadd |~#A1~0.offset| (_ bv12 32)))) (.cse6 (select .cse22 (bvadd |~#A1~0.offset| (_ bv20 32)))) (.cse8 (select .cse22 (bvadd |~#A1~0.offset| (_ bv16 32)))) (.cse2 (select .cse27 (bvadd |~#b2~0.offset| (_ bv4 32)))) (.cse7 (select .cse27 (bvadd |~#b2~0.offset| (_ bv12 32)))) (.cse3 (select .cse27 (bvadd |~#b2~0.offset| (_ bv8 32)))) (.cse16 (select .cse17 (bvadd |~#b1~0.offset| (_ bv4 32)))) (.cse35 (select |c_#memory_int| |c_~#P~0.base|)) (.cse12 (select .cse22 (bvadd |~#A1~0.offset| (_ bv4 32))))) (and (= .cse0 ((_ extract 31 0) v_skolemized_v_prenex_4_6)) (= .cse1 ((_ extract 31 0) v_skolemized_v_prenex_12_6)) (= .cse2 ((_ extract 63 32) v_skolemized_v_prenex_6_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 (/ 2589711026523.0 5000000000000.0))) (= (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 (/ 174231955483.0 100000000000.0))) (= .cse3 ((_ extract 31 0) v_skolemized_v_prenex_7_6)) (= .cse4 ((_ extract 63 32) v_skolemized_v_prenex_5_6)) (= (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|)) (_ +zero 11 53)) (= .cse5 ((_ extract 63 32) v_skolemized_v_prenex_12_6)) (= .cse6 ((_ extract 63 32) v_skolemized_v_prenex_1_6)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_16_6) ((_ extract 62 52) v_skolemized_v_prenex_16_6) ((_ extract 51 0) v_skolemized_v_prenex_16_6)) (_ +zero 11 53)) (= .cse7 ((_ extract 63 32) v_skolemized_v_prenex_7_6)) (= (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)) ((_ to_fp 11 53) c_currentRoundingMode (/ 5522073405779.0 10000000000000.0))) (= .cse8 ((_ extract 31 0) v_skolemized_v_prenex_1_6)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_15_6) ((_ extract 62 52) v_skolemized_v_prenex_15_6) ((_ extract 51 0) v_skolemized_v_prenex_15_6)) ((_ to_fp 11 53) c_currentRoundingMode (/ 1470767736573.0 1000000000000.0))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_22_6) ((_ extract 62 52) v_skolemized_v_prenex_22_6) ((_ extract 51 0) v_skolemized_v_prenex_22_6)) (let ((.cse10 (select |c_#memory_int| (_ bv6 32))) (.cse30 (let ((.cse34 (concat ((_ extract 63 32) v_skolemized_v_prenex_17_6) ((_ extract 31 0) v_skolemized_v_prenex_17_6)))) (fp ((_ extract 63 63) .cse34) ((_ extract 62 52) .cse34) ((_ extract 51 0) .cse34))))) (fp.add c_currentRoundingMode (let ((.cse28 (let ((.cse32 (concat ((_ extract 63 32) v_skolemized_v_prenex_19_6) ((_ extract 31 0) v_skolemized_v_prenex_19_6)))) (fp ((_ extract 63 63) .cse32) ((_ extract 62 52) .cse32) ((_ extract 51 0) .cse32))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (let ((.cse9 (concat (select .cse10 (_ bv4 32)) (select .cse10 (_ bv0 32))))) (fp ((_ extract 63 63) .cse9) ((_ extract 62 52) .cse9) ((_ extract 51 0) .cse9))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse20 (let ((.cse25 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_21|)))) (fp ((_ extract 63 63) .cse25) ((_ extract 62 52) .cse25) ((_ extract 51 0) .cse25))))) (fp.add c_currentRoundingMode (let ((.cse18 (let ((.cse23 (concat ((_ extract 63 32) v_skolemized_v_prenex_16_6) ((_ extract 31 0) v_skolemized_v_prenex_16_6)))) (fp ((_ extract 63 63) .cse23) ((_ extract 62 52) .cse23) ((_ extract 51 0) .cse23))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (let ((.cse11 (concat .cse12 .cse0))) (fp ((_ extract 63 63) .cse11) ((_ extract 62 52) .cse11) ((_ extract 51 0) .cse11))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 117749388721091.0 10000000000000000.0)) (let ((.cse13 (let ((.cse14 (select |c_#memory_int| (_ bv11 32)))) (concat (select .cse14 (_ bv4 32)) (select .cse14 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse13) ((_ extract 62 52) .cse13) ((_ extract 51 0) .cse13)))) (fp.mul c_currentRoundingMode (let ((.cse15 (concat .cse16 (select .cse17 |~#b1~0.offset|)))) (fp ((_ extract 63 63) .cse15) ((_ extract 62 52) .cse15) ((_ extract 51 0) .cse15))) .cse18)) (fp.mul c_currentRoundingMode (let ((.cse19 (concat .cse5 .cse1))) (fp ((_ extract 63 63) .cse19) ((_ extract 62 52) .cse19) ((_ extract 51 0) .cse19))) .cse20))) (fp.mul c_currentRoundingMode (let ((.cse21 (concat .cse4 (select .cse22 (bvadd |~#A1~0.offset| (_ bv8 32)))))) (fp ((_ extract 63 63) .cse21) ((_ extract 62 52) .cse21) ((_ extract 51 0) .cse21))) .cse18))) (fp.mul c_currentRoundingMode (let ((.cse24 (concat .cse6 .cse8))) (fp ((_ extract 63 63) .cse24) ((_ extract 62 52) .cse24) ((_ extract 51 0) .cse24))) .cse20))) (fp.mul c_currentRoundingMode (let ((.cse26 (concat .cse2 (select .cse27 |~#b2~0.offset|)))) (fp ((_ extract 63 63) .cse26) ((_ extract 62 52) .cse26) ((_ extract 51 0) .cse26))) .cse28)) (fp.mul c_currentRoundingMode (let ((.cse29 (concat .cse7 .cse3))) (fp ((_ extract 63 63) .cse29) ((_ extract 62 52) .cse29) ((_ extract 51 0) .cse29))) .cse30))) (fp.mul c_currentRoundingMode (let ((.cse31 (concat (select .cse10 (_ bv12 32)) (select .cse10 (_ bv8 32))))) (fp ((_ extract 63 63) .cse31) ((_ extract 62 52) .cse31) ((_ extract 51 0) .cse31))) .cse28))) (fp.mul c_currentRoundingMode (let ((.cse33 (concat (select .cse10 (_ bv20 32)) (select .cse10 (_ bv16 32))))) (fp ((_ extract 63 63) .cse33) ((_ extract 62 52) .cse33) ((_ extract 51 0) .cse33))) .cse30)))) (= (select .cse35 (bvadd |c_~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_22_6)) (= .cse16 ((_ extract 63 32) v_skolemized_v_prenex_15_6)) (= (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)) ((_ to_fp 11 53) c_currentRoundingMode (/ 410469839621.0 500000000000.0))) (= (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)) (_ +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)) (_ +zero 11 53)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_4_6) ((_ extract 62 52) v_skolemized_v_prenex_4_6) ((_ extract 51 0) v_skolemized_v_prenex_4_6)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (= (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)) ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (= (select .cse35 |c_~#P~0.offset|) ((_ extract 31 0) v_skolemized_v_prenex_22_6)) (= .cse12 ((_ extract 63 32) v_skolemized_v_prenex_4_6)))))) (fp.leq .cse36 .cse37) (= c_currentRoundingMode roundNearestTiesToEven) (= |c_~#P~0.offset| (_ bv0 32)) (fp.geq .cse36 (fp.neg .cse37)) (exists ((v_skolemized_v_prenex_3_6 (_ BitVec 64))) (let ((.cse38 (select |c_#memory_int| (_ bv6 32)))) (and (= (select .cse38 (_ bv0 32)) ((_ extract 31 0) v_skolemized_v_prenex_3_6)) (= (select .cse38 (_ bv4 32)) ((_ extract 63 32) v_skolemized_v_prenex_3_6)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_3_6) ((_ extract 62 52) v_skolemized_v_prenex_3_6) ((_ extract 51 0) v_skolemized_v_prenex_3_6)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))))) (exists ((v_skolemized_v_prenex_13_6 (_ BitVec 64))) (let ((.cse39 (select |c_#memory_int| (_ bv6 32)))) (and (= (select .cse39 (_ bv16 32)) ((_ extract 31 0) v_skolemized_v_prenex_13_6)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_13_6) ((_ extract 62 52) v_skolemized_v_prenex_13_6) ((_ extract 51 0) v_skolemized_v_prenex_13_6)) ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (= (select .cse39 (_ bv20 32)) ((_ extract 63 32) v_skolemized_v_prenex_13_6))))) (exists ((v_skolemized_v_prenex_14_6 (_ BitVec 64))) (and (= (select (select |c_#memory_int| (_ bv6 32)) (_ bv12 32)) ((_ extract 63 32) v_skolemized_v_prenex_14_6)) (= (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)) ((_ to_fp 11 53) c_currentRoundingMode (/ 1633101801841.0 1000000000000.0))))))) is different from false [2021-12-17 06:39:28,638 INFO L354 Elim1Store]: treesize reduction 302, result has 0.3 percent of original size [2021-12-17 06:39:28,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 30 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 27 case distinctions, treesize of input 1013 treesize of output 495 Killed by 15