./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float22.i --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/floats-cbmc-regression/float22.i -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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:26:13,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:26:13,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:26:13,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:26:13,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:26:13,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:26:13,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:26:13,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:26:13,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:26:13,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:26:13,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:26:13,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:26:13,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:26:13,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:26:13,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:26:13,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:26:13,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:26:13,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:26:13,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:26:13,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:26:13,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:26:13,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:26:13,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:26:13,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:26:13,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:26:13,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:26:13,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:26:13,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:26:13,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:26:13,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:26:13,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:26:13,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:26:13,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:26:13,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:26:13,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:26:13,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:26:13,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:26:13,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:26:13,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:26:13,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:26:13,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:26:13,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:26:13,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:26:13,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:26:13,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:26:13,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:26:13,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:26:13,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:26:13,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:26:13,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:26:13,275 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:26:13,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:26:13,276 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:26:13,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:26:13,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:26:13,277 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:26:13,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:26:13,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:26:13,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:26:13,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:26:13,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:26:13,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:26:13,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:26:13,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:26:13,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:26:13,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:26:13,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:26:13,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:26:13,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:26:13,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:26:13,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-12-15 23:26:13,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:26:13,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:26:13,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:26:13,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:26:13,445 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:26:13,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-15 23:26:13,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742d10cae/ef988c7afafb45e48b278c6579dd123c/FLAGcd35113f0 [2021-12-15 23:26:13,850 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:26:13,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-15 23:26:13,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742d10cae/ef988c7afafb45e48b278c6579dd123c/FLAGcd35113f0 [2021-12-15 23:26:13,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742d10cae/ef988c7afafb45e48b278c6579dd123c [2021-12-15 23:26:13,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:26:13,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:26:13,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:26:13,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:26:13,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:26:13,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:26:13" (1/1) ... [2021-12-15 23:26:13,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f96f8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:13, skipping insertion in model container [2021-12-15 23:26:13,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:26:13" (1/1) ... [2021-12-15 23:26:13,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:26:13,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:26:14,011 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-15 23:26:14,013 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-15 23:26:14,014 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-15 23:26:14,016 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-15 23:26:14,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:26:14,021 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:26:14,036 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-15 23:26:14,038 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-15 23:26:14,040 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-15 23:26:14,045 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-15 23:26:14,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:26:14,055 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:26:14,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14 WrapperNode [2021-12-15 23:26:14,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:26:14,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:26:14,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:26:14,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:26:14,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,079 INFO L137 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-12-15 23:26:14,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:26:14,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:26:14,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:26:14,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:26:14,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:26:14,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:26:14,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:26:14,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:26:14,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (1/1) ... [2021-12-15 23:26:14,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:26:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:26:14,133 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) [2021-12-15 23:26:14,139 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 [2021-12-15 23:26:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:26:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-12-15 23:26:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-12-15 23:26:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:26:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:26:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 23:26:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 23:26:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 23:26:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-12-15 23:26:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-12-15 23:26:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:26:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:26:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 23:26:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:26:14,230 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:26:14,231 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:26:14,425 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:26:14,432 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:26:14,433 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 23:26:14,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:26:14 BoogieIcfgContainer [2021-12-15 23:26:14,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:26:14,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:26:14,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:26:14,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:26:14,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:26:13" (1/3) ... [2021-12-15 23:26:14,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d38e0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:26:14, skipping insertion in model container [2021-12-15 23:26:14,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:14" (2/3) ... [2021-12-15 23:26:14,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d38e0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:26:14, skipping insertion in model container [2021-12-15 23:26:14,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:26:14" (3/3) ... [2021-12-15 23:26:14,440 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-12-15 23:26:14,443 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:26:14,444 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-15 23:26:14,476 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:26:14,480 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 [2021-12-15 23:26:14,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-15 23:26:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-15 23:26:14,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 23:26:14,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:26:14,509 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:26:14,509 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-15 23:26:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:26:14,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-12-15 23:26:14,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:26:14,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123060753] [2021-12-15 23:26:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:26:14,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:26:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:26:14,693 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 23:26:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:26:14,779 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 23:26:14,781 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 23:26:14,782 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-12-15 23:26:14,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-12-15 23:26:14,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-12-15 23:26:14,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-12-15 23:26:14,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:26:14,788 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-15 23:26:14,790 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:26:14,795 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,795 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-15 23:26:14,796 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,796 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-15 23:26:14,796 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,796 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-15 23:26:14,797 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-15 23:26:14,797 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-15 23:26:14,797 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,797 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-15 23:26:14,798 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-12-15 23:26:14,798 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-12-15 23:26:14,798 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled [2021-12-15 23:26:14,798 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,798 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-15 23:26:14,799 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,799 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-15 23:26:14,799 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-15 23:26:14,800 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent [2021-12-15 23:26:14,800 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,800 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative [2021-12-15 23:26:14,800 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled [2021-12-15 23:26:14,801 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa [2021-12-15 23:26:14,801 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-12-15 23:26:14,801 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-12-15 23:26:14,801 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled [2021-12-15 23:26:14,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:26:14 BoogieIcfgContainer [2021-12-15 23:26:14,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:26:14,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:26:14,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:26:14,821 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:26:14,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:26:14" (3/4) ... [2021-12-15 23:26:14,824 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 23:26:14,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:26:14,825 INFO L158 Benchmark]: Toolchain (without parser) took 958.67ms. Allocated memory is still 111.1MB. Free memory was 79.5MB in the beginning and 79.1MB in the end (delta: 449.9kB). Peak memory consumption was 557.0kB. Max. memory is 16.1GB. [2021-12-15 23:26:14,826 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 77.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:26:14,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.30ms. Allocated memory is still 111.1MB. Free memory was 79.3MB in the beginning and 85.1MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 23:26:14,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.77ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:26:14,830 INFO L158 Benchmark]: Boogie Preprocessor took 18.71ms. Allocated memory is still 111.1MB. Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:26:14,831 INFO L158 Benchmark]: RCFGBuilder took 334.64ms. Allocated memory is still 111.1MB. Free memory was 81.4MB in the beginning and 66.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 23:26:14,831 INFO L158 Benchmark]: TraceAbstraction took 383.05ms. Allocated memory is still 111.1MB. Free memory was 65.8MB in the beginning and 79.1MB in the end (delta: -13.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-12-15 23:26:14,831 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 111.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:26:14,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 77.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.30ms. Allocated memory is still 111.1MB. Free memory was 79.3MB in the beginning and 85.1MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.77ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.71ms. Allocated memory is still 111.1MB. Free memory was 83.0MB in the beginning and 81.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.64ms. Allocated memory is still 111.1MB. Free memory was 81.4MB in the beginning and 66.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 383.05ms. Allocated memory is still 111.1MB. Free memory was 65.8MB in the beginning and 79.1MB in the end (delta: -13.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 111.1MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret6#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.exponent - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.negative - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for Procedure implementation returnsStructure(#in~index : int) returns (#res : ~ieee754_float~0); and expression #res.ieee.mantissa - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList testOne_#t~ret7#1 : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 130. Possible FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={5:0}, f2={6:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [\old(index)=0, index=0, unknown-#res!f-unknown=57, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L141] RET, EXPR returnsStructure(0) VAL [f1={5:0}, f2={6:0}, returnsStructure(0)=0returnsStructure(0)=57returnsStructure(0)=0returnsStructure(0)=0] [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; VAL [\old(index)=1, index=1, unknown-#res!f-unknown=59, unknown-#res.ieee.exponent-unknown=0, unknown-#res.ieee.mantissa-unknown=0, unknown-#res.ieee.negative-unknown=0] [L142] RET, EXPR returnsStructure(1) VAL [f1={5:0}, f2={6:0}, returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=0returnsStructure(1)=59] [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative VAL [f1={5:0}, f1.ieee.negative=0, f2={6:0}, f2.ieee.negative=0] [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() VAL [f1={5:0}, f2={6:0}] - UnprovableResult [Line: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-12-15 23:26:14,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float22.i -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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:26:16,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:26:16,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:26:16,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:26:16,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:26:16,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:26:16,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:26:16,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:26:16,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:26:16,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:26:16,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:26:16,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:26:16,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:26:16,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:26:16,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:26:16,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:26:16,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:26:16,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:26:16,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:26:16,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:26:16,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:26:16,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:26:16,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:26:16,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:26:16,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:26:16,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:26:16,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:26:16,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:26:16,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:26:16,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:26:16,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:26:16,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:26:16,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:26:16,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:26:16,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:26:16,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:26:16,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:26:16,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:26:16,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:26:16,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:26:16,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:26:16,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 23:26:16,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:26:16,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:26:16,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:26:16,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:26:16,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:26:16,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:26:16,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:26:16,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:26:16,533 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:26:16,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:26:16,534 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:26:16,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:26:16,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:26:16,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:26:16,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:26:16,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:26:16,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:26:16,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:26:16,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:26:16,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:26:16,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:26:16,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:26:16,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:26:16,537 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 23:26:16,537 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 23:26:16,537 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:26:16,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:26:16,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:26:16,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:26:16,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 23:26:16,538 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2021-12-15 23:26:16,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:26:16,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:26:16,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:26:16,785 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:26:16,786 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:26:16,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-15 23:26:16,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1867454d/290768159635482184205aeeeb1a6fa0/FLAG8baa5b291 [2021-12-15 23:26:17,184 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:26:17,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2021-12-15 23:26:17,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1867454d/290768159635482184205aeeeb1a6fa0/FLAG8baa5b291 [2021-12-15 23:26:17,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1867454d/290768159635482184205aeeeb1a6fa0 [2021-12-15 23:26:17,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:26:17,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:26:17,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:26:17,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:26:17,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:26:17,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a1ac51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17, skipping insertion in model container [2021-12-15 23:26:17,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:26:17,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:26:17,408 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-15 23:26:17,414 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-15 23:26:17,416 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-15 23:26:17,418 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-15 23:26:17,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:26:17,430 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:26:17,462 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/floats-cbmc-regression/float22.i[2558,2571] [2021-12-15 23:26:17,466 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/floats-cbmc-regression/float22.i[2753,2766] [2021-12-15 23:26:17,467 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/floats-cbmc-regression/float22.i[2881,2894] [2021-12-15 23:26:17,475 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/floats-cbmc-regression/float22.i[3073,3086] [2021-12-15 23:26:17,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:26:17,486 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:26:17,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17 WrapperNode [2021-12-15 23:26:17,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:26:17,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:26:17,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:26:17,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:26:17,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,537 INFO L137 Inliner]: procedures = 24, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2021-12-15 23:26:17,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:26:17,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:26:17,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:26:17,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:26:17,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:26:17,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:26:17,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:26:17,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:26:17,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (1/1) ... [2021-12-15 23:26:17,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:26:17,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:26:17,620 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) [2021-12-15 23:26:17,626 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 [2021-12-15 23:26:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:26:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2021-12-15 23:26:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2021-12-15 23:26:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 23:26:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:26:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-15 23:26:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 23:26:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2021-12-15 23:26:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2021-12-15 23:26:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:26:17,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:26:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-15 23:26:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:26:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 23:26:17,729 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:26:17,730 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:26:17,931 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:26:17,935 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:26:17,936 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 23:26:17,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:26:17 BoogieIcfgContainer [2021-12-15 23:26:17,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:26:17,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:26:17,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:26:17,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:26:17,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:26:17" (1/3) ... [2021-12-15 23:26:17,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5537f19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:26:17, skipping insertion in model container [2021-12-15 23:26:17,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:26:17" (2/3) ... [2021-12-15 23:26:17,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5537f19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:26:17, skipping insertion in model container [2021-12-15 23:26:17,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:26:17" (3/3) ... [2021-12-15 23:26:17,942 INFO L111 eAbstractionObserver]: Analyzing ICFG float22.i [2021-12-15 23:26:17,946 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:26:17,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-15 23:26:17,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:26:17,989 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 [2021-12-15 23:26:17,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-15 23:26:18,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-15 23:26:18,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 23:26:18,004 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:26:18,004 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:26:18,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-15 23:26:18,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:26:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1402952998, now seen corresponding path program 1 times [2021-12-15 23:26:18,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:26:18,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552789878] [2021-12-15 23:26:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:26:18,020 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:26:18,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:26:18,024 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) [2021-12-15 23:26:18,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 23:26:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:26:18,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-15 23:26:18,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:26:18,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 23:26:18,296 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-15 23:26:18,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-15 23:26:18,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:26:18,539 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-15 23:26:18,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-15 23:26:18,655 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-12-15 23:26:18,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-12-15 23:26:24,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:24,371 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-15 23:26:24,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-15 23:26:24,407 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-15 23:26:24,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-12-15 23:26:26,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:26,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-15 23:26:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:26:26,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:26:28,612 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_45 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (v_ArrVal_47 (_ BitVec 32)) (v_ArrVal_48 (_ BitVec 32))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_9| (select (select (store |c_#memory_int| |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_45) (bvadd |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv4 32)) v_ArrVal_47) (bvadd |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv8 32)) v_ArrVal_48) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) |c_ULTIMATE.start_testOne_#t~ret7#1.f|)))) is different from false [2021-12-15 23:26:30,816 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_13| (_ BitVec 32)) (v_ArrVal_56 (_ BitVec 32)) (v_ArrVal_45 (_ BitVec 32)) (|ULTIMATE.start_testOne_~#f2~0#1.offset| (_ BitVec 32)) (|v_ULTIMATE.start_testOne_#t~mem8#1_9| (_ BitVec 32)) (v_ArrVal_57 (_ BitVec 32)) (v_ArrVal_47 (_ BitVec 32)) (v_ArrVal_48 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_13|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_56) (_ bv8 32) v_ArrVal_57))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_13| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_45) (bvadd |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv4 32)) v_ArrVal_47) (bvadd |ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv8 32)) v_ArrVal_48) |ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_9|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_13|)))))) is different from false [2021-12-15 23:26:30,826 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:26:30,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552789878] [2021-12-15 23:26:30,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552789878] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:26:30,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1161514211] [2021-12-15 23:26:30,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:26:30,827 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-15 23:26:30,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-15 23:26:30,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-15 23:26:30,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2021-12-15 23:26:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:26:31,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-15 23:26:31,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:26:31,099 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-15 23:26:31,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-15 23:26:31,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:26:31,276 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-15 23:26:31,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-12-15 23:26:31,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:31,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:31,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:31,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2021-12-15 23:26:33,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:33,710 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-15 23:26:33,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-12-15 23:26:33,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:33,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-15 23:26:35,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:35,843 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-15 23:26:35,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-12-15 23:26:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:26:35,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:26:39,113 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_testOne_#t~mem8#1_12| (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_22| (_ BitVec 32)) (v_ArrVal_105 (_ BitVec 32)) (v_ArrVal_104 (_ BitVec 32)) (v_ArrVal_114 (_ BitVec 32)) (v_ArrVal_113 (_ BitVec 32)) (v_ArrVal_102 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_22|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_113) (_ bv8 32) v_ArrVal_114))) (or (not (= |v_ULTIMATE.start_testOne_#t~mem8#1_12| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_22| .cse1))) (store .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base| (store (store (store (store (select .cse0 |c_ULTIMATE.start_testOne_~#f2~0#1.base|) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| v_ArrVal_104) (bvadd |c_ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv4 32)) v_ArrVal_105) (bvadd |c_ULTIMATE.start_testOne_~#f2~0#1.offset| (_ bv8 32)) v_ArrVal_102) |c_ULTIMATE.start_testOne_~#f2~0#1.offset| |v_ULTIMATE.start_testOne_#t~mem8#1_12|))) |c_ULTIMATE.start_testOne_~#f1~0#1.base|) |c_ULTIMATE.start_testOne_~#f1~0#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_22|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testOne_#t~mem8#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testOne_#t~mem8#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testOne_#t~mem8#1_12|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) is different from false [2021-12-15 23:26:39,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1161514211] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:26:39,121 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-15 23:26:39,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-12-15 23:26:39,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305609933] [2021-12-15 23:26:39,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-15 23:26:39,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-15 23:26:39,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:26:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-15 23:26:39,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=232, Unknown=7, NotChecked=96, Total=380 [2021-12-15 23:26:39,144 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 34 states have internal predecessors, (38), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:26:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:26:41,758 INFO L93 Difference]: Finished difference Result 81 states and 96 transitions. [2021-12-15 23:26:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 23:26:41,761 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 14 [2021-12-15 23:26:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:26:41,765 INFO L225 Difference]: With dead ends: 81 [2021-12-15 23:26:41,765 INFO L226 Difference]: Without dead ends: 38 [2021-12-15 23:26:41,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=73, Invalid=393, Unknown=8, NotChecked=126, Total=600 [2021-12-15 23:26:41,769 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 23:26:41,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 283 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 49 Invalid, 0 Unknown, 125 Unchecked, 0.2s Time] [2021-12-15 23:26:41,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-15 23:26:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-12-15 23:26:41,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.08) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-15 23:26:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2021-12-15 23:26:41,800 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 14 [2021-12-15 23:26:41,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:26:41,801 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2021-12-15 23:26:41,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 9 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 23:26:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2021-12-15 23:26:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-15 23:26:41,804 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:26:41,804 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:26:41,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2021-12-15 23:26:42,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 23:26:42,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:26:42,208 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-15 23:26:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:26:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1984783089, now seen corresponding path program 1 times [2021-12-15 23:26:42,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:26:42,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351992478] [2021-12-15 23:26:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:26:42,209 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:26:42,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:26:42,210 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) [2021-12-15 23:26:42,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 23:26:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:26:42,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 43 conjunts are in the unsatisfiable core [2021-12-15 23:26:42,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:26:42,468 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-15 23:26:42,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-15 23:26:42,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:26:42,618 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-15 23:26:42,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-12-15 23:26:42,753 INFO L354 Elim1Store]: treesize reduction 74, result has 20.4 percent of original size [2021-12-15 23:26:42,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 51 [2021-12-15 23:26:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:48,516 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-15 23:26:48,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-15 23:26:48,535 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-15 23:26:48,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-12-15 23:26:50,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:50,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-15 23:26:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-15 23:26:50,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:26:58,318 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ BitVec 32)) (v_ArrVal_195 (_ BitVec 32)) (v_ArrVal_194 (_ BitVec 32)) (|v_returnsStructure_~#c~1.base_35| (_ BitVec 32)) (v_ArrVal_204 (_ BitVec 32)) (v_ArrVal_203 (_ BitVec 32)) (v_ArrVal_196 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_35|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_203) (_ bv8 32) v_ArrVal_204))) (or (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_9|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testTwo_#t~mem12#1_9| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_35| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_196) (bvadd |ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv4 32)) v_ArrVal_195) (bvadd |ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv8 32)) v_ArrVal_194) |ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_35|)))))) is different from false [2021-12-15 23:26:58,326 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:26:58,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351992478] [2021-12-15 23:26:58,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351992478] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:26:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1569400287] [2021-12-15 23:26:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:26:58,327 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-15 23:26:58,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-15 23:26:58,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-15 23:26:58,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-12-15 23:26:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:26:58,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 44 conjunts are in the unsatisfiable core [2021-12-15 23:26:58,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:26:58,839 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-15 23:26:58,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-15 23:26:58,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:26:59,069 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-15 23:26:59,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-12-15 23:26:59,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:59,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:59,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:26:59,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 51 [2021-12-15 23:27:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:01,689 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-15 23:27:01,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-12-15 23:27:01,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:01,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-15 23:27:03,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:03,882 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-15 23:27:03,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-12-15 23:27:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-15 23:27:03,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:27:06,388 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsStructure_~#c~1.base_48| (_ BitVec 32)) (v_ArrVal_281 (_ BitVec 32)) (v_ArrVal_280 (_ BitVec 32)) (v_ArrVal_290 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem12#1_12| (_ BitVec 32)) (v_ArrVal_279 (_ BitVec 32)) (v_ArrVal_289 (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsStructure_~#c~1.base_48|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_289) (_ bv8 32) v_ArrVal_290))) (or (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem12#1_12|)) (let ((.cse0 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |v_ULTIMATE.start_testTwo_#t~mem12#1_12| (select (select (let ((.cse2 (store |c_#memory_int| |v_returnsStructure_~#c~1.base_48| .cse1))) (store .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (store (store (store (select .cse2 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| v_ArrVal_281) (bvadd |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv4 32)) v_ArrVal_280) (bvadd |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| (_ bv8 32)) v_ArrVal_279) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem12#1_12|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (_ bv0 1) (select |c_#valid| |v_returnsStructure_~#c~1.base_48|)))))) is different from false [2021-12-15 23:27:06,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1569400287] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:27:06,399 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-15 23:27:06,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-12-15 23:27:06,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928051748] [2021-12-15 23:27:06,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-15 23:27:06,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-15 23:27:06,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:27:06,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-15 23:27:06,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=253, Unknown=7, NotChecked=66, Total=380 [2021-12-15 23:27:06,400 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-15 23:27:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:27:08,626 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2021-12-15 23:27:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 23:27:08,627 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 27 [2021-12-15 23:27:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:27:08,628 INFO L225 Difference]: With dead ends: 38 [2021-12-15 23:27:08,628 INFO L226 Difference]: Without dead ends: 36 [2021-12-15 23:27:08,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=59, Invalid=284, Unknown=7, NotChecked=70, Total=420 [2021-12-15 23:27:08,629 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 106 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 23:27:08,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 192 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 106 Unchecked, 0.1s Time] [2021-12-15 23:27:08,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-15 23:27:08,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-15 23:27:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 25 states have internal predecessors, (25), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-15 23:27:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-12-15 23:27:08,634 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2021-12-15 23:27:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:27:08,635 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-12-15 23:27:08,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-15 23:27:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2021-12-15 23:27:08,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-15 23:27:08,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:27:08,636 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:27:08,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-12-15 23:27:08,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 23:27:09,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:27:09,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-15 23:27:09,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:27:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash 248347731, now seen corresponding path program 1 times [2021-12-15 23:27:09,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:27:09,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112174178] [2021-12-15 23:27:09,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:27:09,041 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:27:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:27:09,042 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:27:09,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 23:27:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:27:09,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-15 23:27:09,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:27:09,446 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-12-15 23:27:09,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 18 [2021-12-15 23:27:09,558 INFO L354 Elim1Store]: treesize reduction 4, result has 85.7 percent of original size [2021-12-15 23:27:09,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 43 [2021-12-15 23:27:09,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:27:09,736 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-12-15 23:27:09,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 29 [2021-12-15 23:27:09,871 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 23:27:09,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:09,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:09,890 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 23:27:09,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 69 [2021-12-15 23:27:10,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:27:10,283 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-15 23:27:10,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-12-15 23:27:10,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-12-15 23:27:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:14,523 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-15 23:27:14,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 55 [2021-12-15 23:27:14,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:14,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-12-15 23:27:16,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:16,686 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-15 23:27:16,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2021-12-15 23:27:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-15 23:27:16,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 23:27:19,318 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_returnsField_~#c~0.base_13| (_ BitVec 32)) (v_ArrVal_400 (_ BitVec 32)) (v_ArrVal_399 (_ BitVec 32)) (|v_ULTIMATE.start_testTwo_#t~mem16#1_9| (_ BitVec 32))) (let ((.cse1 (store (store (store (select |c_#memory_int| |v_returnsField_~#c~0.base_13|) (_ bv0 32) (_ bv1 32)) (_ bv4 32) v_ArrVal_399) (_ bv8 32) v_ArrVal_400))) (or (not (= (_ bv0 1) (select |c_#valid| |v_returnsField_~#c~0.base_13|))) (not (= |v_ULTIMATE.start_testTwo_#t~mem16#1_9| (select (select (let ((.cse0 (store |c_#memory_int| |v_returnsField_~#c~0.base_13| .cse1))) (store .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base| (store (select .cse0 |c_ULTIMATE.start_testTwo_~#f2~1#1.base|) |c_ULTIMATE.start_testTwo_~#f2~1#1.offset| |v_ULTIMATE.start_testTwo_#t~mem16#1_9|))) |c_ULTIMATE.start_testTwo_~#f1~1#1.base|) |c_ULTIMATE.start_testTwo_~#f1~1#1.offset|))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|) ((_ extract 30 23) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|) ((_ extract 22 0) |v_ULTIMATE.start_testTwo_#t~mem16#1_9|)) (let ((.cse2 (select .cse1 (_ bv0 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))))) is different from false [2021-12-15 23:27:19,324 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:27:19,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112174178] [2021-12-15 23:27:19,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112174178] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 23:27:19,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1038639532] [2021-12-15 23:27:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:27:19,325 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-12-15 23:27:19,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-12-15 23:27:19,326 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-12-15 23:27:19,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-12-15 23:27:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:27:19,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 55 conjunts are in the unsatisfiable core [2021-12-15 23:27:19,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:27:20,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 23:27:20,015 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-12-15 23:27:20,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-12-15 23:27:20,217 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-15 23:27:20,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-15 23:27:20,379 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-15 23:27:20,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-15 23:27:20,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-12-15 23:27:20,636 INFO L354 Elim1Store]: treesize reduction 30, result has 45.5 percent of original size [2021-12-15 23:27:20,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 46 [2021-12-15 23:27:20,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 33 [2021-12-15 23:27:27,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:27,108 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-12-15 23:27:27,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 58 [2021-12-15 23:27:27,151 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-15 23:27:27,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2021-12-15 23:27:29,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 23:27:29,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 34 [2021-12-15 23:27:29,344 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 23:27:29,345 INFO L328 TraceCheckSpWp]: Computing backward predicates...