./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:27:11,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:27:11,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:27:11,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:27:11,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:27:11,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:27:11,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:27:11,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:27:11,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:27:11,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:27:11,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:27:11,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:27:11,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:27:11,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:27:11,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:27:11,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:27:11,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:27:11,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:27:11,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:27:11,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:27:11,440 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:27:11,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:27:11,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:27:11,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:27:11,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:27:11,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:27:11,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:27:11,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:27:11,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:27:11,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:27:11,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:27:11,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:27:11,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:27:11,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:27:11,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:27:11,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:27:11,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:27:11,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:27:11,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:27:11,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:27:11,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:27:11,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:27:11,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:27:11,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:27:11,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:27:11,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:27:11,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:27:11,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:27:11,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:27:11,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:27:11,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:27:11,514 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:27:11,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:27:11,516 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:27:11,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:27:11,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:27:11,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:27:11,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:27:11,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:27:11,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:27:11,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:27:11,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:27:11,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:27:11,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:27:11,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:27:11,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:27:11,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:27:11,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:27:11,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:27:11,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:27:11,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:27:11,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:27:11,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:27:11,520 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:27:11,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:27:11,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:27:11,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2022-07-21 01:27:11,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:27:11,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:27:11,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:27:11,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:27:11,868 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:27:11,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-21 01:27:11,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cadc2542e/b0185199c17049c983304674a51cdeb1/FLAG731385c06 [2022-07-21 01:27:12,325 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:27:12,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-21 01:27:12,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cadc2542e/b0185199c17049c983304674a51cdeb1/FLAG731385c06 [2022-07-21 01:27:12,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cadc2542e/b0185199c17049c983304674a51cdeb1 [2022-07-21 01:27:12,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:27:12,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:27:12,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:27:12,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:27:12,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:27:12,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6483d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12, skipping insertion in model container [2022-07-21 01:27:12,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:27:12,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:27:12,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2022-07-21 01:27:12,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:27:12,880 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:27:12,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2022-07-21 01:27:12,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:27:12,928 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:27:12,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12 WrapperNode [2022-07-21 01:27:12,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:27:12,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:27:12,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:27:12,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:27:12,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,957 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2022-07-21 01:27:12,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:27:12,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:27:12,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:27:12,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:27:12,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:27:12,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:27:12,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:27:12,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:27:12,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (1/1) ... [2022-07-21 01:27:12,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:27:13,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:27:13,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:27:13,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:27:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:27:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:27:13,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:27:13,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:27:13,109 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:27:13,110 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:27:13,212 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:27:13,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:27:13,218 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:27:13,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:13 BoogieIcfgContainer [2022-07-21 01:27:13,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:27:13,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:27:13,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:27:13,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:27:13,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:27:12" (1/3) ... [2022-07-21 01:27:13,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9eda2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:27:13, skipping insertion in model container [2022-07-21 01:27:13,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:12" (2/3) ... [2022-07-21 01:27:13,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9eda2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:27:13, skipping insertion in model container [2022-07-21 01:27:13,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:13" (3/3) ... [2022-07-21 01:27:13,241 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2022-07-21 01:27:13,256 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:27:13,256 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:27:13,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:27:13,308 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@45b6de18, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ea288ce [2022-07-21 01:27:13,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:27:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:13,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 01:27:13,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:27:13,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:27:13,319 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:27:13,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:27:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-07-21 01:27:13,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:27:13,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709064873] [2022-07-21 01:27:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:27:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:27:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:27:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:27:13,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:27:13,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709064873] [2022-07-21 01:27:13,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709064873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:27:13,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:27:13,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:27:13,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808632440] [2022-07-21 01:27:13,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:27:13,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:27:13,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:27:13,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:27:13,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:27:13,468 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:27:13,479 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-07-21 01:27:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:27:13,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-07-21 01:27:13,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:27:13,487 INFO L225 Difference]: With dead ends: 23 [2022-07-21 01:27:13,488 INFO L226 Difference]: Without dead ends: 9 [2022-07-21 01:27:13,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:27:13,493 INFO L413 NwaCegarLoop]: 13 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, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:27:13,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:27:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-21 01:27:13,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-21 01:27:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:13,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-21 01:27:13,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-07-21 01:27:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:27:13,529 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-21 01:27:13,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-21 01:27:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 01:27:13,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:27:13,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:27:13,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:27:13,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:27:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:27:13,533 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-07-21 01:27:13,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:27:13,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188485723] [2022-07-21 01:27:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:27:13,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:27:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:27:13,569 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:27:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:27:13,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:27:13,605 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:27:13,607 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:27:13,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:27:13,629 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:27:13,633 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:27:13,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:27:13 BoogieIcfgContainer [2022-07-21 01:27:13,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:27:13,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:27:13,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:27:13,668 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:27:13,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:13" (3/4) ... [2022-07-21 01:27:13,672 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:27:13,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:27:13,674 INFO L158 Benchmark]: Toolchain (without parser) took 934.03ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.7MB in the beginning and 52.7MB in the end (delta: -19.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:27:13,675 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 35.9MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:27:13,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.44ms. Allocated memory is still 54.5MB. Free memory was 33.5MB in the beginning and 38.8MB in the end (delta: -5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:27:13,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.21ms. Allocated memory is still 54.5MB. Free memory was 38.8MB in the beginning and 37.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:27:13,680 INFO L158 Benchmark]: Boogie Preprocessor took 25.25ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 36.3MB in the end (delta: 948.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:27:13,682 INFO L158 Benchmark]: RCFGBuilder took 247.82ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 28.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 01:27:13,683 INFO L158 Benchmark]: TraceAbstraction took 431.87ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 27.4MB in the beginning and 53.2MB in the end (delta: -25.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:27:13,683 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 52.7MB in the end (delta: 428.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:27:13,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 35.9MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.44ms. Allocated memory is still 54.5MB. Free memory was 33.5MB in the beginning and 38.8MB in the end (delta: -5.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.21ms. Allocated memory is still 54.5MB. Free memory was 38.8MB in the beginning and 37.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.25ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 36.3MB in the end (delta: 948.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 247.82ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 28.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 431.87ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 27.4MB in the beginning and 53.2MB in the end (delta: -25.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 71.3MB. Free memory was 53.2MB in the beginning and 52.7MB in the end (delta: 428.5kB). 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L21] CALL assume_abort_if_not(x >= 0. && x <= 10.) [L12] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L21] RET assume_abort_if_not(x >= 0. && x <= 10.) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L27] CALL __VERIFIER_assert(y >= 0. && y <= 105.) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 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, 13 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=13occurred 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2022-07-21 01:27:13,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:27:15,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:27:15,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:27:15,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:27:15,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:27:15,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:27:15,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:27:15,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:27:15,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:27:15,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:27:15,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:27:15,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:27:15,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:27:15,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:27:15,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:27:15,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:27:15,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:27:15,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:27:15,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:27:15,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:27:15,731 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:27:15,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:27:15,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:27:15,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:27:15,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:27:15,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:27:15,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:27:15,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:27:15,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:27:15,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:27:15,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:27:15,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:27:15,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:27:15,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:27:15,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:27:15,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:27:15,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:27:15,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:27:15,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:27:15,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:27:15,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:27:15,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:27:15,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:27:15,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:27:15,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:27:15,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:27:15,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:27:15,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:27:15,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:27:15,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:27:15,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:27:15,794 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:27:15,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:27:15,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:27:15,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:27:15,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:27:15,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:27:15,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:27:15,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:27:15,796 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:27:15,796 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:27:15,797 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:27:15,797 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:27:15,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:27:15,797 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:27:15,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:27:15,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:27:15,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:27:15,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:27:15,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:27:15,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:27:15,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:27:15,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:27:15,799 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:27:15,799 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:27:15,800 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:27:15,800 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:27:15,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:27:15,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:27:15,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2022-07-21 01:27:16,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:27:16,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:27:16,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:27:16,150 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:27:16,151 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:27:16,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-21 01:27:16,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f35034a/228ece213f614415a73ea15c1fcc0eba/FLAGc6b00a487 [2022-07-21 01:27:16,674 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:27:16,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2022-07-21 01:27:16,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f35034a/228ece213f614415a73ea15c1fcc0eba/FLAGc6b00a487 [2022-07-21 01:27:16,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5f35034a/228ece213f614415a73ea15c1fcc0eba [2022-07-21 01:27:16,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:27:16,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:27:16,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:27:16,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:27:16,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:27:16,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ba805c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16, skipping insertion in model container [2022-07-21 01:27:16,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:27:16,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:27:16,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2022-07-21 01:27:16,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:27:16,867 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:27:16,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2022-07-21 01:27:16,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:27:16,921 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:27:16,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16 WrapperNode [2022-07-21 01:27:16,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:27:16,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:27:16,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:27:16,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:27:16,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,956 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2022-07-21 01:27:16,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:27:16,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:27:16,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:27:16,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:27:16,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:16,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:17,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:27:17,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:27:17,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:27:17,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:27:17,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (1/1) ... [2022-07-21 01:27:17,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:27:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:27:17,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:27:17,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:27:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:27:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:27:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:27:17,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:27:17,153 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:27:17,154 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:27:20,270 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:27:20,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:27:20,275 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:27:20,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:20 BoogieIcfgContainer [2022-07-21 01:27:20,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:27:20,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:27:20,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:27:20,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:27:20,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:27:16" (1/3) ... [2022-07-21 01:27:20,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320a473a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:27:20, skipping insertion in model container [2022-07-21 01:27:20,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:16" (2/3) ... [2022-07-21 01:27:20,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320a473a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:27:20, skipping insertion in model container [2022-07-21 01:27:20,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:20" (3/3) ... [2022-07-21 01:27:20,285 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2022-07-21 01:27:20,297 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:27:20,298 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:27:20,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:27:20,348 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@181353fa, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@563aaf46 [2022-07-21 01:27:20,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:27:20,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:20,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 01:27:20,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:27:20,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:27:20,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:27:20,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:27:20,363 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-07-21 01:27:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:27:20,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779072381] [2022-07-21 01:27:20,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:27:20,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:27:20,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:27:20,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:27:20,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:27:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:27:20,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:27:20,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:27:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:27:20,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:27:20,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:27:20,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779072381] [2022-07-21 01:27:20,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779072381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:27:20,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:27:20,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:27:20,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117181020] [2022-07-21 01:27:20,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:27:20,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:27:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:27:20,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:27:20,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:27:20,850 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:20,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:27:20,862 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-07-21 01:27:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:27:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-07-21 01:27:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:27:20,869 INFO L225 Difference]: With dead ends: 23 [2022-07-21 01:27:20,870 INFO L226 Difference]: Without dead ends: 9 [2022-07-21 01:27:20,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:27:20,876 INFO L413 NwaCegarLoop]: 13 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, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:27:20,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:27:20,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-21 01:27:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-21 01:27:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-21 01:27:20,901 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-07-21 01:27:20,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:27:20,902 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-21 01:27:20,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:27:20,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-21 01:27:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 01:27:20,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:27:20,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:27:20,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 01:27:21,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:27:21,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:27:21,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:27:21,121 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-07-21 01:27:21,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:27:21,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821692606] [2022-07-21 01:27:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:27:21,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:27:21,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:27:21,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:27:21,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:27:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:27:21,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 01:27:21,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:27:52,026 WARN L233 SmtUtils]: Spent 9.46s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-21 01:29:01,834 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (let ((.cse1 (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (not .cse1) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))))) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2022-07-21 01:29:18,897 WARN L833 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2022-07-21 01:29:20,983 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true [2022-07-21 01:29:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:29:20,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:29:20,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:29:20,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821692606] [2022-07-21 01:29:20,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821692606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:29:20,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:29:20,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 01:29:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045738111] [2022-07-21 01:29:20,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:29:20,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 01:29:20,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:29:20,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 01:29:20,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=15, Unknown=7, NotChecked=18, Total=56 [2022-07-21 01:29:20,987 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:29:24,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-21 01:29:27,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-21 01:29:29,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-21 01:29:29,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:29:29,452 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-07-21 01:29:29,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 01:29:29,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-07-21 01:29:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:29:29,453 INFO L225 Difference]: With dead ends: 13 [2022-07-21 01:29:29,453 INFO L226 Difference]: Without dead ends: 9 [2022-07-21 01:29:29,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=8, NotChecked=22, Total=72 [2022-07-21 01:29:29,455 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-21 01:29:29,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 26 Unchecked, 6.2s Time] [2022-07-21 01:29:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-21 01:29:29,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-21 01:29:29,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:29:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-07-21 01:29:29,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-07-21 01:29:29,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:29:29,459 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-07-21 01:29:29,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:29:29,459 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-07-21 01:29:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 01:29:29,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:29:29,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:29:29,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:29:29,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:29:29,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:29:29,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:29:29,673 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2022-07-21 01:29:29,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:29:29,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466016192] [2022-07-21 01:29:29,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:29:29,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:29:29,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:29:29,676 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:29:29,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 01:29:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:29:30,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 01:29:30,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:29:55,289 WARN L233 SmtUtils]: Spent 9.87s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-21 01:30:14,002 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= |c_ULTIMATE.start_main_~y~0#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-21 01:31:59,970 WARN L833 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from false [2022-07-21 01:32:02,011 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~x~0#1|) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (not .cse1)))) (fp.leq |ULTIMATE.start_main_~x~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq |ULTIMATE.start_main_~x~0#1| (_ +zero 11 53))))) is different from true