./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/combinations/square_8+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:05:43,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:05:43,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:05:43,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:05:43,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:05:43,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:05:43,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:05:43,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:05:43,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:05:43,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:05:43,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:05:43,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:05:43,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:05:43,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:05:43,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:05:43,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:05:43,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:05:43,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:05:43,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:05:43,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:05:43,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:05:43,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:05:43,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:05:43,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:05:43,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:05:43,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:05:43,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:05:43,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:05:43,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:05:43,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:05:43,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:05:43,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:05:43,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:05:43,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:05:43,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:05:43,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:05:43,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:05:43,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:05:43,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:05:43,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:05:43,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:05:43,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 20:05:43,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:05:43,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:05:43,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:05:43,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:05:43,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:05:43,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:05:43,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:05:43,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:05:43,126 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:05:43,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:05:43,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:05:43,127 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:05:43,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:05:43,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:05:43,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:05:43,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:05:43,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:05:43,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:05:43,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:05:43,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:05:43,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:05:43,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:05:43,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 20:05:43,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 20:05:43,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:05:43,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:05:43,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:05:43,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 [2022-02-20 20:05:43,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:05:43,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:05:43,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:05:43,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:05:43,317 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:05:43,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-02-20 20:05:43,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db082ee9e/8ed401f0498a4868ad117f4f332f5efc/FLAG42c262dd2 [2022-02-20 20:05:43,717 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:05:43,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-02-20 20:05:43,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db082ee9e/8ed401f0498a4868ad117f4f332f5efc/FLAG42c262dd2 [2022-02-20 20:05:44,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db082ee9e/8ed401f0498a4868ad117f4f332f5efc [2022-02-20 20:05:44,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:05:44,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:05:44,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:05:44,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:05:44,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:05:44,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714ce15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44, skipping insertion in model container [2022-02-20 20:05:44,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:05:44,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:05:44,279 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/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-02-20 20:05:44,284 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/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-02-20 20:05:44,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:05:44,332 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:05:44,341 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/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-02-20 20:05:44,348 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/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-02-20 20:05:44,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:05:44,388 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:05:44,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44 WrapperNode [2022-02-20 20:05:44,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:05:44,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:05:44,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:05:44,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:05:44,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,432 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-02-20 20:05:44,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:05:44,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:05:44,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:05:44,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:05:44,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:05:44,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:05:44,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:05:44,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:05:44,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (1/1) ... [2022-02-20 20:05:44,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:05:44,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:05:44,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 20:05:44,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 20:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:05:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 20:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:05:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:05:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:05:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:05:44,615 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:05:44,616 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:05:45,006 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:05:45,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:05:45,019 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:05:45,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:05:45 BoogieIcfgContainer [2022-02-20 20:05:45,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:05:45,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:05:45,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:05:45,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:05:45,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:05:44" (1/3) ... [2022-02-20 20:05:45,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afd4440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:05:45, skipping insertion in model container [2022-02-20 20:05:45,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:44" (2/3) ... [2022-02-20 20:05:45,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afd4440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:05:45, skipping insertion in model container [2022-02-20 20:05:45,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:05:45" (3/3) ... [2022-02-20 20:05:45,028 INFO L111 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_2a.c.cil.c [2022-02-20 20:05:45,034 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:05:45,034 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:05:45,064 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:05:45,069 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 [2022-02-20 20:05:45,069 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:05:45,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:05:45,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:05:45,090 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:05:45,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:05:45,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:05:45,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:05:45,098 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-02-20 20:05:45,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:05:45,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757480470] [2022-02-20 20:05:45,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:05:45,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:05:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:05:45,226 INFO L290 TraceCheckUtils]: 0: Hoare triple {100#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2); {100#true} is VALID [2022-02-20 20:05:45,226 INFO L290 TraceCheckUtils]: 1: Hoare triple {100#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet30#1, main_#t~ret31#1, main_#t~ret32#1;assume -2147483648 <= main_#t~nondet30#1 && main_#t~nondet30#1 <= 2147483647; {100#true} is VALID [2022-02-20 20:05:45,226 INFO L290 TraceCheckUtils]: 2: Hoare triple {100#true} assume 0 != main_#t~nondet30#1;havoc main_#t~nondet30#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~IN~0#1, 1.0) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {100#true} is VALID [2022-02-20 20:05:45,227 INFO L290 TraceCheckUtils]: 3: Hoare triple {100#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {101#false} is VALID [2022-02-20 20:05:45,227 INFO L290 TraceCheckUtils]: 4: Hoare triple {101#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {101#false} is VALID [2022-02-20 20:05:45,228 INFO L290 TraceCheckUtils]: 5: Hoare triple {101#false} assume !(~someBinaryFLOATComparisonOperation(main1_~result~0#1, 0.0) && ~someBinaryFLOATComparisonOperation(main1_~result~0#1, 1.5)); {101#false} is VALID [2022-02-20 20:05:45,228 INFO L290 TraceCheckUtils]: 6: Hoare triple {101#false} assume !false; {101#false} is VALID [2022-02-20 20:05:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 20:05:45,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 20:05:45,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757480470] [2022-02-20 20:05:45,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757480470] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:05:45,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:05:45,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:05:45,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623069099] [2022-02-20 20:05:45,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:05:45,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:05:45,239 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:05:45,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:45,251 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:05:45,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:05:45,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 20:05:45,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:05:45,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:05:45,278 INFO L87 Difference]: Start difference. First operand has 97 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 90 states have internal predecessors, (147), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:05:45,409 INFO L93 Difference]: Finished difference Result 189 states and 311 transitions. [2022-02-20 20:05:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:05:45,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:05:45,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:05:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-02-20 20:05:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:45,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-02-20 20:05:45,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 311 transitions. [2022-02-20 20:05:45,648 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 311 edges. 311 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:05:45,660 INFO L225 Difference]: With dead ends: 189 [2022-02-20 20:05:45,661 INFO L226 Difference]: Without dead ends: 88 [2022-02-20 20:05:45,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:05:45,666 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:05:45,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:05:45,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-02-20 20:05:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-02-20 20:05:45,689 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:05:45,690 INFO L82 GeneralOperation]: Start isEquivalent. First operand 88 states. Second operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:45,691 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:45,691 INFO L87 Difference]: Start difference. First operand 88 states. Second operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:45,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:05:45,696 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2022-02-20 20:05:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:05:45,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:05:45,697 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:05:45,698 INFO L74 IsIncluded]: Start isIncluded. First operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 88 states. [2022-02-20 20:05:45,698 INFO L87 Difference]: Start difference. First operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 88 states. [2022-02-20 20:05:45,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:05:45,702 INFO L93 Difference]: Finished difference Result 88 states and 129 transitions. [2022-02-20 20:05:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:05:45,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:05:45,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:05:45,704 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:05:45,704 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:05:45,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.5) internal successors, (120), 81 states have internal predecessors, (120), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2022-02-20 20:05:45,709 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 7 [2022-02-20 20:05:45,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:05:45,709 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2022-02-20 20:05:45,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:45,710 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2022-02-20 20:05:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:05:45,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:05:45,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:05:45,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 20:05:45,711 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:05:45,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:05:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-02-20 20:05:45,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 20:05:45,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996492160] [2022-02-20 20:05:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:05:45,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 20:05:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:05:45,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 20:05:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 20:05:45,754 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 20:05:45,755 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 20:05:45,756 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-02-20 20:05:45,757 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-20 20:05:45,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 20:05:45,760 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 20:05:45,761 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 20:05:45,773 WARN L170 areAnnotationChecker]: base2fltENTRY has no Hoare annotation [2022-02-20 20:05:45,773 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2022-02-20 20:05:45,774 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L322 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L60 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: base2fltFINAL has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2022-02-20 20:05:45,775 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: L100-2 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: L281 has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:05:45,776 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: base2fltEXIT has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L101 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L281-1 has no Hoare annotation [2022-02-20 20:05:45,777 WARN L170 areAnnotationChecker]: L299-1 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L282-1 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L283-1 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L284-1 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L119-7 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L119-1 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2022-02-20 20:05:45,778 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:05:45,779 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-02-20 20:05:45,779 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:05:45,779 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 20:05:45,779 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:05:45,783 WARN L170 areAnnotationChecker]: L282 has no Hoare annotation [2022-02-20 20:05:45,783 WARN L170 areAnnotationChecker]: L317 has no Hoare annotation [2022-02-20 20:05:45,783 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:05:45,783 WARN L170 areAnnotationChecker]: L283 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L284 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L286 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L120-7 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-02-20 20:05:45,785 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L119-3 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L320 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L286-2 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L289 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L120-3 has no Hoare annotation [2022-02-20 20:05:45,786 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L119-5 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L201 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L289-2 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L120-5 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:05:45,787 WARN L170 areAnnotationChecker]: L201-2 has no Hoare annotation [2022-02-20 20:05:45,788 WARN L170 areAnnotationChecker]: L259 has no Hoare annotation [2022-02-20 20:05:45,788 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:05:45,788 WARN L170 areAnnotationChecker]: L214 has no Hoare annotation [2022-02-20 20:05:45,788 WARN L170 areAnnotationChecker]: L260 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L214-8 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L214-2 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L299 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L216 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:05:45,789 WARN L170 areAnnotationChecker]: L214-4 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L300 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L216-8 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L216-2 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:05:45,790 WARN L170 areAnnotationChecker]: L214-6 has no Hoare annotation [2022-02-20 20:05:45,791 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:05:45,791 WARN L170 areAnnotationChecker]: L300-2 has no Hoare annotation [2022-02-20 20:05:45,791 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:05:45,791 WARN L170 areAnnotationChecker]: L303 has no Hoare annotation [2022-02-20 20:05:45,792 WARN L170 areAnnotationChecker]: L217-7 has no Hoare annotation [2022-02-20 20:05:45,794 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:05:45,794 WARN L170 areAnnotationChecker]: L217-1 has no Hoare annotation [2022-02-20 20:05:45,794 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:05:45,794 WARN L170 areAnnotationChecker]: L216-4 has no Hoare annotation [2022-02-20 20:05:45,794 WARN L170 areAnnotationChecker]: L303-2 has no Hoare annotation [2022-02-20 20:05:45,795 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:05:45,795 WARN L170 areAnnotationChecker]: L219 has no Hoare annotation [2022-02-20 20:05:45,795 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:05:45,795 WARN L170 areAnnotationChecker]: L217-3 has no Hoare annotation [2022-02-20 20:05:45,799 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:05:45,799 WARN L170 areAnnotationChecker]: L216-6 has no Hoare annotation [2022-02-20 20:05:45,799 WARN L170 areAnnotationChecker]: L219-8 has no Hoare annotation [2022-02-20 20:05:45,799 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:05:45,799 WARN L170 areAnnotationChecker]: L219-2 has no Hoare annotation [2022-02-20 20:05:45,799 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L217-5 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L222 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L219-4 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L228 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L219-6 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:05:45,800 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L238 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L246 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L256 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:05:45,801 WARN L170 areAnnotationChecker]: L256-8 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L256-2 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L257-7 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L257-1 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L256-4 has no Hoare annotation [2022-02-20 20:05:45,802 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:05:45,803 WARN L170 areAnnotationChecker]: L257-3 has no Hoare annotation [2022-02-20 20:05:45,803 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:05:45,803 WARN L170 areAnnotationChecker]: L256-6 has no Hoare annotation [2022-02-20 20:05:45,803 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:05:45,803 WARN L170 areAnnotationChecker]: L257-5 has no Hoare annotation [2022-02-20 20:05:45,803 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 20:05:45,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 08:05:45 BoogieIcfgContainer [2022-02-20 20:05:45,805 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 20:05:45,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 20:05:45,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 20:05:45,807 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 20:05:45,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:05:45" (3/4) ... [2022-02-20 20:05:45,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 20:05:45,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 20:05:45,812 INFO L158 Benchmark]: Toolchain (without parser) took 1675.41ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 44.6MB in the end (delta: 24.8MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-02-20 20:05:45,813 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:05:45,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.08ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 53.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-20 20:05:45,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.89ms. Allocated memory is still 98.6MB. Free memory was 53.2MB in the beginning and 50.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:05:45,817 INFO L158 Benchmark]: Boogie Preprocessor took 42.56ms. Allocated memory is still 98.6MB. Free memory was 50.4MB in the beginning and 48.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 20:05:45,817 INFO L158 Benchmark]: RCFGBuilder took 544.40ms. Allocated memory is still 98.6MB. Free memory was 48.4MB in the beginning and 64.2MB in the end (delta: -15.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-02-20 20:05:45,818 INFO L158 Benchmark]: TraceAbstraction took 783.99ms. Allocated memory is still 98.6MB. Free memory was 63.9MB in the beginning and 45.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-02-20 20:05:45,818 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 98.6MB. Free memory was 45.2MB in the beginning and 44.6MB in the end (delta: 561.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 20:05:45,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.08ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 53.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.89ms. Allocated memory is still 98.6MB. Free memory was 53.2MB in the beginning and 50.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.56ms. Allocated memory is still 98.6MB. Free memory was 50.4MB in the beginning and 48.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.40ms. Allocated memory is still 98.6MB. Free memory was 48.4MB in the beginning and 64.2MB in the end (delta: -15.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 783.99ms. Allocated memory is still 98.6MB. Free memory was 63.9MB in the beginning and 45.2MB in the end (delta: 18.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 98.6MB. Free memory was 45.2MB in the beginning and 44.6MB in the end (delta: 561.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.5f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: 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, 97 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 140 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 20:05:45,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/combinations/square_8+soft_float_2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 20:05:47,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 20:05:47,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 20:05:47,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 20:05:47,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 20:05:47,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 20:05:47,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 20:05:47,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 20:05:47,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 20:05:47,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 20:05:47,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 20:05:47,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 20:05:47,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 20:05:47,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 20:05:47,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 20:05:47,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 20:05:47,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 20:05:47,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 20:05:47,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 20:05:47,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 20:05:47,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 20:05:47,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 20:05:47,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 20:05:47,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 20:05:47,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 20:05:47,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 20:05:47,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 20:05:47,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 20:05:47,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 20:05:47,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 20:05:47,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 20:05:47,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 20:05:47,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 20:05:47,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 20:05:47,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 20:05:47,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 20:05:47,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 20:05:47,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 20:05:47,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 20:05:47,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 20:05:47,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 20:05:47,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 20:05:47,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 20:05:47,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 20:05:47,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 20:05:47,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 20:05:47,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 20:05:47,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 20:05:47,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 20:05:47,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 20:05:47,588 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 20:05:47,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 20:05:47,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 20:05:47,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 20:05:47,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 20:05:47,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 20:05:47,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 20:05:47,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 20:05:47,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 20:05:47,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 20:05:47,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 20:05:47,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:05:47,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 20:05:47,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 20:05:47,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 20:05:47,592 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 20:05:47,592 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 20:05:47,592 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 20:05:47,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 20:05:47,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 20:05:47,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 20:05:47,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 [2022-02-20 20:05:47,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 20:05:47,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 20:05:47,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 20:05:47,831 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 20:05:47,831 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 20:05:47,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-02-20 20:05:47,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365a938ef/85f3e49a15ba4ad7b31b41d3631f55b0/FLAGc909091bb [2022-02-20 20:05:48,256 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 20:05:48,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-02-20 20:05:48,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365a938ef/85f3e49a15ba4ad7b31b41d3631f55b0/FLAGc909091bb [2022-02-20 20:05:48,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365a938ef/85f3e49a15ba4ad7b31b41d3631f55b0 [2022-02-20 20:05:48,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 20:05:48,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 20:05:48,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 20:05:48,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 20:05:48,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 20:05:48,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7659d71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48, skipping insertion in model container [2022-02-20 20:05:48,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 20:05:48,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 20:05:48,459 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/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-02-20 20:05:48,471 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/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-02-20 20:05:48,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:05:48,516 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 20:05:48,527 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/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-02-20 20:05:48,534 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/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-02-20 20:05:48,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 20:05:48,577 INFO L208 MainTranslator]: Completed translation [2022-02-20 20:05:48,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48 WrapperNode [2022-02-20 20:05:48,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 20:05:48,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 20:05:48,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 20:05:48,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 20:05:48,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,633 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-02-20 20:05:48,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 20:05:48,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 20:05:48,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 20:05:48,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 20:05:48,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 20:05:48,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 20:05:48,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 20:05:48,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 20:05:48,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (1/1) ... [2022-02-20 20:05:48,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 20:05:48,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 20:05:48,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 20:05:48,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 20:05:48,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 20:05:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 20:05:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-02-20 20:05:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-02-20 20:05:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 20:05:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 20:05:48,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 20:05:48,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 20:05:48,821 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 20:05:48,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 20:05:51,336 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 20:05:51,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 20:05:51,342 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-20 20:05:51,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:05:51 BoogieIcfgContainer [2022-02-20 20:05:51,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 20:05:51,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 20:05:51,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 20:05:51,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 20:05:51,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 08:05:48" (1/3) ... [2022-02-20 20:05:51,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:05:51, skipping insertion in model container [2022-02-20 20:05:51,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 08:05:48" (2/3) ... [2022-02-20 20:05:51,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 08:05:51, skipping insertion in model container [2022-02-20 20:05:51,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 08:05:51" (3/3) ... [2022-02-20 20:05:51,350 INFO L111 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_2a.c.cil.c [2022-02-20 20:05:51,354 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 20:05:51,354 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-20 20:05:51,401 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 20:05:51,408 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 [2022-02-20 20:05:51,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 20:05:51,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 20:05:51,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:05:51,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:05:51,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:05:51,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:05:51,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:05:51,433 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-02-20 20:05:51,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:05:51,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567192419] [2022-02-20 20:05:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:05:51,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:05:51,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:05:51,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 20:05:51,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 20:05:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:05:51,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 20:05:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 20:05:51,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 20:05:51,878 INFO L290 TraceCheckUtils]: 0: Hoare triple {64#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(11bv32, 2bv32); {64#true} is VALID [2022-02-20 20:05:51,879 INFO L290 TraceCheckUtils]: 1: Hoare triple {64#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet16#1, main_#t~ret17#1, main_#t~ret18#1; {64#true} is VALID [2022-02-20 20:05:51,879 INFO L290 TraceCheckUtils]: 2: Hoare triple {64#true} assume 0bv32 != main_#t~nondet16#1;havoc main_#t~nondet16#1;assume { :begin_inline_main1 } true;havoc main1_#res#1;havoc main1_#t~nondet2#1, main1_~IN~0#1, main1_~x~0#1, main1_~result~0#1;main1_~IN~0#1 := main1_#t~nondet2#1;havoc main1_#t~nondet2#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~FLOAT(main1_~IN~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~IN~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {64#true} is VALID [2022-02-20 20:05:51,880 INFO L290 TraceCheckUtils]: 3: Hoare triple {64#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {65#false} is VALID [2022-02-20 20:05:51,880 INFO L290 TraceCheckUtils]: 4: Hoare triple {65#false} assume { :end_inline_assume_abort_if_not } true;main1_~x~0#1 := main1_~IN~0#1;main1_~result~0#1 := ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~fp.sub~FLOAT(currentRoundingMode, ~fp.add~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 1.0), ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.5), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.125), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)), ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, ~to_fp~FLOAT(currentRoundingMode, 0.0390625), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1), main1_~x~0#1)); {65#false} is VALID [2022-02-20 20:05:51,881 INFO L290 TraceCheckUtils]: 5: Hoare triple {65#false} assume !(~fp.geq~FLOAT(main1_~result~0#1, ~Pluszero~FLOAT()) && ~fp.lt~FLOAT(main1_~result~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.5))); {65#false} is VALID [2022-02-20 20:05:51,881 INFO L290 TraceCheckUtils]: 6: Hoare triple {65#false} assume !false; {65#false} is VALID [2022-02-20 20:05:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 20:05:51,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 20:05:51,882 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 20:05:51,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567192419] [2022-02-20 20:05:51,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567192419] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 20:05:51,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 20:05:51,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 20:05:51,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12561154] [2022-02-20 20:05:51,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 20:05:51,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:05:51,890 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 20:05:51,892 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:52,184 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:05:52,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 20:05:52,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 20:05:52,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 20:05:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:05:52,205 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:05:54,719 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-02-20 20:05:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 20:05:54,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-02-20 20:05:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 20:05:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2022-02-20 20:05:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions. [2022-02-20 20:05:54,740 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 175 transitions. [2022-02-20 20:05:55,420 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 175 edges. 175 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 20:05:55,427 INFO L225 Difference]: With dead ends: 117 [2022-02-20 20:05:55,427 INFO L226 Difference]: Without dead ends: 52 [2022-02-20 20:05:55,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 20:05:55,432 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 20:05:55,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 20:05:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-02-20 20:05:55,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-02-20 20:05:55,454 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 20:05:55,454 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:55,455 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:55,456 INFO L87 Difference]: Start difference. First operand 52 states. Second operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:55,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:05:55,460 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-02-20 20:05:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:05:55,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:05:55,461 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:05:55,461 INFO L74 IsIncluded]: Start isIncluded. First operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 52 states. [2022-02-20 20:05:55,462 INFO L87 Difference]: Start difference. First operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 52 states. [2022-02-20 20:05:55,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 20:05:55,465 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-02-20 20:05:55,465 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:05:55,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 20:05:55,466 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 20:05:55,466 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 20:05:55,466 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 20:05:55,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-20 20:05:55,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-02-20 20:05:55,470 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-02-20 20:05:55,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 20:05:55,470 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-02-20 20:05:55,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 20:05:55,471 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-02-20 20:05:55,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-02-20 20:05:55,471 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 20:05:55,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-20 20:05:55,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 20:05:55,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 20:05:55,688 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 20:05:55,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 20:05:55,689 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-02-20 20:05:55,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 20:05:55,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966250321] [2022-02-20 20:05:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 20:05:55,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 20:05:55,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 20:05:55,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 20:05:55,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process