./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1130b.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 a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:49:18,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:49:18,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:49:18,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:49:18,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:49:18,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:49:18,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:49:18,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:49:18,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:49:18,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:49:18,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:49:18,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:49:18,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:49:18,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:49:18,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:49:18,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:49:18,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:49:18,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:49:18,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:49:18,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:49:18,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:49:18,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:49:18,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:49:18,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:49:18,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:49:18,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:49:18,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:49:18,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:49:18,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:49:18,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:49:18,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:49:18,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:49:18,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:49:18,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:49:18,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:49:18,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:49:18,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:49:18,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:49:18,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:49:18,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:49:18,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:49:18,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:49:18,642 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:49:18,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:49:18,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:49:18,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:49:18,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:49:18,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:49:18,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:49:18,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:49:18,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:49:18,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:49:18,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:49:18,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:49:18,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:49:18,667 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:49:18,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:49:18,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:49:18,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2021-12-15 23:49:18,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:49:18,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:49:18,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:49:18,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:49:18,869 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:49:18,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-15 23:49:18,907 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be8aae62/70c4ac1b093c4b3b8099ffe9ee8cf598/FLAG69e9cbefb [2021-12-15 23:49:19,273 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:49:19,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-15 23:49:19,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be8aae62/70c4ac1b093c4b3b8099ffe9ee8cf598/FLAG69e9cbefb [2021-12-15 23:49:19,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be8aae62/70c4ac1b093c4b3b8099ffe9ee8cf598 [2021-12-15 23:49:19,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:49:19,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:49:19,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:49:19,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:49:19,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:49:19,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dc33f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19, skipping insertion in model container [2021-12-15 23:49:19,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:49:19,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:49:19,497 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-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-15 23:49:19,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:49:19,504 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:49:19,529 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-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-15 23:49:19,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:49:19,539 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:49:19,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19 WrapperNode [2021-12-15 23:49:19,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:49:19,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:49:19,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:49:19,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:49:19,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,591 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2021-12-15 23:49:19,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:49:19,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:49:19,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:49:19,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:49:19,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:49:19,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:49:19,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:49:19,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:49:19,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (1/1) ... [2021-12-15 23:49:19,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:49:19,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:49:19,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 23:49:19,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 23:49:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:49:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:49:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:49:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 23:49:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 23:49:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 23:49:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:49:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:49:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 23:49:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-15 23:49:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:49:19,763 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:49:19,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:49:19,906 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:49:19,910 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:49:19,910 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-15 23:49:19,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:19 BoogieIcfgContainer [2021-12-15 23:49:19,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:49:19,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:49:19,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:49:19,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:49:19,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:49:19" (1/3) ... [2021-12-15 23:49:19,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b4cb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:49:19, skipping insertion in model container [2021-12-15 23:49:19,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:19" (2/3) ... [2021-12-15 23:49:19,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b4cb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:49:19, skipping insertion in model container [2021-12-15 23:49:19,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:19" (3/3) ... [2021-12-15 23:49:19,917 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2021-12-15 23:49:19,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:49:19,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:49:19,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:49:19,954 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 23:49:19,954 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:49:19,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:49:19,966 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:19,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:19,967 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:19,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:19,970 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2021-12-15 23:49:19,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:49:19,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451512248] [2021-12-15 23:49:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:19,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:49:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:20,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:49:20,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451512248] [2021-12-15 23:49:20,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451512248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:20,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:20,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:49:20,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556882306] [2021-12-15 23:49:20,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:20,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:49:20,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:49:20,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:49:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:49:20,127 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:20,150 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2021-12-15 23:49:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:49:20,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-12-15 23:49:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:20,158 INFO L225 Difference]: With dead ends: 93 [2021-12-15 23:49:20,158 INFO L226 Difference]: Without dead ends: 44 [2021-12-15 23:49:20,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:49:20,164 INFO L933 BasicCegarLoop]: 65 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, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:20,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:49:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-15 23:49:20,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-15 23:49:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-12-15 23:49:20,194 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2021-12-15 23:49:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:20,194 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-12-15 23:49:20,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:20,195 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2021-12-15 23:49:20,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 23:49:20,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:20,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:20,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:49:20,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2021-12-15 23:49:20,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:49:20,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729832001] [2021-12-15 23:49:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:20,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:49:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:49:20,262 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 23:49:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:49:20,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 23:49:20,338 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 23:49:20,339 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:49:20,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 23:49:20,343 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 23:49:20,345 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:49:20,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:49:20 BoogieIcfgContainer [2021-12-15 23:49:20,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:49:20,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:49:20,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:49:20,362 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:49:20,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:19" (3/4) ... [2021-12-15 23:49:20,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 23:49:20,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:49:20,365 INFO L158 Benchmark]: Toolchain (without parser) took 1064.32ms. Allocated memory is still 125.8MB. Free memory was 87.8MB in the beginning and 96.9MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:49:20,365 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:49:20,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.62ms. Allocated memory is still 125.8MB. Free memory was 87.6MB in the beginning and 98.0MB in the end (delta: -10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 23:49:20,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.34ms. Allocated memory is still 125.8MB. Free memory was 98.0MB in the beginning and 95.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 23:49:20,366 INFO L158 Benchmark]: Boogie Preprocessor took 39.73ms. Allocated memory is still 125.8MB. Free memory was 95.3MB in the beginning and 93.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:49:20,366 INFO L158 Benchmark]: RCFGBuilder took 279.09ms. Allocated memory is still 125.8MB. Free memory was 93.8MB in the beginning and 78.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 23:49:20,367 INFO L158 Benchmark]: TraceAbstraction took 448.37ms. Allocated memory is still 125.8MB. Free memory was 78.6MB in the beginning and 97.6MB in the end (delta: -19.1MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-12-15 23:49:20,367 INFO L158 Benchmark]: Witness Printer took 2.59ms. Allocated memory is still 125.8MB. Free memory was 97.6MB in the beginning and 96.9MB in the end (delta: 738.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:49:20,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.62ms. Allocated memory is still 125.8MB. Free memory was 87.6MB in the beginning and 98.0MB in the end (delta: -10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.34ms. Allocated memory is still 125.8MB. Free memory was 98.0MB in the beginning and 95.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.73ms. Allocated memory is still 125.8MB. Free memory was 95.3MB in the beginning and 93.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.09ms. Allocated memory is still 125.8MB. Free memory was 93.8MB in the beginning and 78.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 448.37ms. Allocated memory is still 125.8MB. Free memory was 78.6MB in the beginning and 97.6MB in the end (delta: -19.1MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 2.59ms. Allocated memory is still 125.8MB. Free memory was 97.6MB in the beginning and 96.9MB in the end (delta: 738.0kB). 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 128, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L128] float x = -0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967296, \old(y)=4294967298, one_fmod=1, x=4294967296, y=4294967298, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967296, \old(y)=4294967298, one_fmod=1, sx=7, x=4294967296, y=4294967298, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967296, \old(y)=4294967298, hx=2139095040, hy=0, one_fmod=1, sx=7, x=4294967296, y=4294967298, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_fmod=1, res=4294967297, res == -0.0f && __signbit_float(res) == 1=0, x=4294967296, y=4294967298, Zero_fmod={4:0}] [L136] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L137] reach_error() VAL [one_fmod=1, res=4294967297, x=4294967296, y=4294967298, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 65 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, 65 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=48occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-12-15 23:49:20,396 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-newlib/float_req_bl_1130b.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 a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:49:22,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:49:22,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:49:22,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:49:22,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:49:22,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:49:22,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:49:22,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:49:22,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:49:22,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:49:22,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:49:22,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:49:22,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:49:22,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:49:22,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:49:22,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:49:22,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:49:22,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:49:22,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:49:22,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:49:22,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:49:22,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:49:22,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:49:22,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:49:22,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:49:22,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:49:22,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:49:22,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:49:22,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:49:22,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:49:22,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:49:22,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:49:22,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:49:22,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:49:22,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:49:22,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:49:22,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:49:22,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:49:22,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:49:22,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:49:22,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:49:22,390 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 23:49:22,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:49:22,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:49:22,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:49:22,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:49:22,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:49:22,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:49:22,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:49:22,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:49:22,415 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:49:22,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:49:22,416 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:49:22,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:49:22,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:49:22,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:49:22,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:49:22,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:49:22,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 23:49:22,417 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 23:49:22,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 23:49:22,418 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:49:22,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:49:22,418 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:49:22,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:49:22,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:49:22,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:49:22,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:49:22,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:49:22,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:49:22,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:49:22,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:49:22,419 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 23:49:22,420 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 23:49:22,420 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:49:22,420 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:49:22,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:49:22,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:49:22,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 23:49:22,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2021-12-15 23:49:22,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:49:22,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:49:22,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:49:22,825 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:49:22,830 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:49:22,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-15 23:49:22,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26a3f58f/74a7f7eeeb98415dac811384a8943e37/FLAGfa8b6faee [2021-12-15 23:49:23,210 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:49:23,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2021-12-15 23:49:23,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26a3f58f/74a7f7eeeb98415dac811384a8943e37/FLAGfa8b6faee [2021-12-15 23:49:23,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26a3f58f/74a7f7eeeb98415dac811384a8943e37 [2021-12-15 23:49:23,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:49:23,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:49:23,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:49:23,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:49:23,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:49:23,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:23,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78eeca59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23, skipping insertion in model container [2021-12-15 23:49:23,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:23,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:49:23,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:49:23,761 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-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-15 23:49:23,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:49:23,831 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:49:23,889 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-newlib/float_req_bl_1130b.c[2909,2922] [2021-12-15 23:49:23,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:49:23,936 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:49:23,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23 WrapperNode [2021-12-15 23:49:23,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:49:23,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:49:23,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:49:23,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:49:23,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:23,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:23,983 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2021-12-15 23:49:23,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:49:23,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:49:23,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:49:23,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:49:23,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:23,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:49:24,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:49:24,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:49:24,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:49:24,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (1/1) ... [2021-12-15 23:49:24,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:49:24,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:49:24,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 23:49:24,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 23:49:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:49:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-12-15 23:49:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 23:49:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:49:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-15 23:49:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 23:49:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:49:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:49:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-15 23:49:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 23:49:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:49:24,191 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:49:24,193 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:49:26,663 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:49:26,666 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:49:26,666 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-12-15 23:49:26,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:26 BoogieIcfgContainer [2021-12-15 23:49:26,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:49:26,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:49:26,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:49:26,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:49:26,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:49:23" (1/3) ... [2021-12-15 23:49:26,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf8efb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:49:26, skipping insertion in model container [2021-12-15 23:49:26,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:23" (2/3) ... [2021-12-15 23:49:26,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf8efb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:49:26, skipping insertion in model container [2021-12-15 23:49:26,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:26" (3/3) ... [2021-12-15 23:49:26,686 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2021-12-15 23:49:26,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:49:26,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:49:26,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:49:26,755 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 23:49:26,755 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:49:26,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:49:26,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:26,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:26,796 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:26,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2021-12-15 23:49:26,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:26,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626833078] [2021-12-15 23:49:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:26,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:26,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:26,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 23:49:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:27,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 23:49:27,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:27,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:27,100 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:27,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626833078] [2021-12-15 23:49:27,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626833078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:27,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:27,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:49:27,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044908856] [2021-12-15 23:49:27,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:27,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:49:27,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:49:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:49:27,143 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:27,155 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2021-12-15 23:49:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:49:27,156 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-12-15 23:49:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:27,161 INFO L225 Difference]: With dead ends: 93 [2021-12-15 23:49:27,161 INFO L226 Difference]: Without dead ends: 44 [2021-12-15 23:49:27,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:49:27,166 INFO L933 BasicCegarLoop]: 65 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, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:27,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:49:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-15 23:49:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-15 23:49:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-12-15 23:49:27,187 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2021-12-15 23:49:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:27,188 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-12-15 23:49:27,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2021-12-15 23:49:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 23:49:27,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:27,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:27,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:27,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:27,401 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:27,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:27,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2021-12-15 23:49:27,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:27,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580402013] [2021-12-15 23:49:27,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:27,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:27,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:27,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 23:49:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:27,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-15 23:49:27,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:27,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 23:49:27,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2021-12-15 23:49:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:28,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:28,218 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:28,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580402013] [2021-12-15 23:49:28,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580402013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:28,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:28,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:49:28,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374794087] [2021-12-15 23:49:28,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:28,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:49:28,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:28,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:49:28,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:49:28,229 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:28,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:28,646 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2021-12-15 23:49:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 23:49:28,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2021-12-15 23:49:28,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:28,648 INFO L225 Difference]: With dead ends: 53 [2021-12-15 23:49:28,649 INFO L226 Difference]: Without dead ends: 44 [2021-12-15 23:49:28,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-15 23:49:28,650 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:28,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 240 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 55 Unchecked, 0.3s Time] [2021-12-15 23:49:28,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-15 23:49:28,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-15 23:49:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.372093023255814) internal successors, (59), 43 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2021-12-15 23:49:28,654 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 13 [2021-12-15 23:49:28,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:28,654 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2021-12-15 23:49:28,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2021-12-15 23:49:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-15 23:49:28,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:28,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:28,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:28,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:28,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:28,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:28,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1911951893, now seen corresponding path program 1 times [2021-12-15 23:49:28,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:28,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251413094] [2021-12-15 23:49:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:28,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:28,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:28,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:28,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 23:49:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:28,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 23:49:28,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:29,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:29,137 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:29,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251413094] [2021-12-15 23:49:29,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251413094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:29,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:29,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 23:49:29,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150135494] [2021-12-15 23:49:29,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:29,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 23:49:29,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 23:49:29,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 23:49:29,139 INFO L87 Difference]: Start difference. First operand 44 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:29,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:29,541 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2021-12-15 23:49:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 23:49:29,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2021-12-15 23:49:29,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:29,542 INFO L225 Difference]: With dead ends: 65 [2021-12-15 23:49:29,542 INFO L226 Difference]: Without dead ends: 62 [2021-12-15 23:49:29,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-15 23:49:29,543 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:29,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 169 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 23:49:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-15 23:49:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2021-12-15 23:49:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2021-12-15 23:49:29,548 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 14 [2021-12-15 23:49:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:29,549 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2021-12-15 23:49:29,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2021-12-15 23:49:29,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 23:49:29,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:29,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:29,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:29,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:29,768 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:29,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash 791016935, now seen corresponding path program 1 times [2021-12-15 23:49:29,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:29,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399238219] [2021-12-15 23:49:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:29,769 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:29,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:29,770 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:29,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 23:49:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:29,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-15 23:49:29,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:30,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:30,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:30,170 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:30,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399238219] [2021-12-15 23:49:30,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399238219] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:30,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:30,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:49:30,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104380896] [2021-12-15 23:49:30,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:30,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:49:30,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:30,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:49:30,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:49:30,172 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:30,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:30,531 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2021-12-15 23:49:30,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 23:49:30,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) Word has length 15 [2021-12-15 23:49:30,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:30,533 INFO L225 Difference]: With dead ends: 55 [2021-12-15 23:49:30,533 INFO L226 Difference]: Without dead ends: 46 [2021-12-15 23:49:30,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-15 23:49:30,534 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:30,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 231 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 53 Unchecked, 0.3s Time] [2021-12-15 23:49:30,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-15 23:49:30,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-12-15 23:49:30,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:30,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2021-12-15 23:49:30,539 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 15 [2021-12-15 23:49:30,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:30,539 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2021-12-15 23:49:30,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2021-12-15 23:49:30,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 23:49:30,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:30,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:30,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:30,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:30,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash -645654976, now seen corresponding path program 1 times [2021-12-15 23:49:30,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:30,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900495635] [2021-12-15 23:49:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:30,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:30,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:30,754 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:30,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 23:49:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:30,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-15 23:49:30,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:31,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:31,169 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:31,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900495635] [2021-12-15 23:49:31,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900495635] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:31,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:31,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 23:49:31,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873211616] [2021-12-15 23:49:31,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:31,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-15 23:49:31,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-15 23:49:31,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-15 23:49:31,172 INFO L87 Difference]: Start difference. First operand 46 states and 60 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:32,018 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2021-12-15 23:49:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-15 23:49:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 18 [2021-12-15 23:49:32,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:32,018 INFO L225 Difference]: With dead ends: 62 [2021-12-15 23:49:32,018 INFO L226 Difference]: Without dead ends: 53 [2021-12-15 23:49:32,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-12-15 23:49:32,019 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 141 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:32,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 366 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 23:49:32,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-15 23:49:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-12-15 23:49:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-12-15 23:49:32,024 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 18 [2021-12-15 23:49:32,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:32,024 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-12-15 23:49:32,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-12-15 23:49:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-15 23:49:32,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:32,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:32,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-15 23:49:32,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:32,226 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1896589553, now seen corresponding path program 1 times [2021-12-15 23:49:32,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:32,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60236941] [2021-12-15 23:49:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:32,228 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:32,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:32,230 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:32,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-15 23:49:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:32,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 23:49:32,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:32,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:32,563 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:32,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60236941] [2021-12-15 23:49:32,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60236941] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:32,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:32,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 23:49:32,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655272631] [2021-12-15 23:49:32,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:32,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 23:49:32,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:32,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 23:49:32,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 23:49:32,564 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:32,987 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2021-12-15 23:49:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 23:49:32,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2021-12-15 23:49:32,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:32,988 INFO L225 Difference]: With dead ends: 74 [2021-12-15 23:49:32,988 INFO L226 Difference]: Without dead ends: 44 [2021-12-15 23:49:32,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-15 23:49:32,988 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 9 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:32,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 201 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 21 Unchecked, 0.3s Time] [2021-12-15 23:49:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-15 23:49:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-15 23:49:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-12-15 23:49:32,991 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 24 [2021-12-15 23:49:32,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:32,992 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-12-15 23:49:32,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-12-15 23:49:32,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 23:49:32,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:32,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:33,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:33,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:33,200 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1844332961, now seen corresponding path program 1 times [2021-12-15 23:49:33,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:33,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461034608] [2021-12-15 23:49:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:33,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:33,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:33,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:33,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-15 23:49:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:33,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-15 23:49:33,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:33,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:33,632 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:33,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461034608] [2021-12-15 23:49:33,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461034608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:33,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:33,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 23:49:33,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152848870] [2021-12-15 23:49:33,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:33,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 23:49:33,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 23:49:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-15 23:49:33,634 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:34,271 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2021-12-15 23:49:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 23:49:34,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-12-15 23:49:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:34,272 INFO L225 Difference]: With dead ends: 71 [2021-12-15 23:49:34,272 INFO L226 Difference]: Without dead ends: 44 [2021-12-15 23:49:34,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-15 23:49:34,273 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 11 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:34,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 230 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 34 Unchecked, 0.5s Time] [2021-12-15 23:49:34,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-15 23:49:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-12-15 23:49:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-12-15 23:49:34,276 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 25 [2021-12-15 23:49:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:34,276 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-12-15 23:49:34,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:34,276 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2021-12-15 23:49:34,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-15 23:49:34,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:34,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:34,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:34,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:34,484 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 101160342, now seen corresponding path program 1 times [2021-12-15 23:49:34,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:34,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021217358] [2021-12-15 23:49:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:34,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:34,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:34,486 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:34,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-15 23:49:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:34,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 23:49:34,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:49:34,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:34,837 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:34,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021217358] [2021-12-15 23:49:34,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021217358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:34,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:34,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 23:49:34,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832903717] [2021-12-15 23:49:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:34,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 23:49:34,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:34,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 23:49:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 23:49:34,841 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:34,851 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2021-12-15 23:49:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 23:49:34,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-12-15 23:49:34,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:34,852 INFO L225 Difference]: With dead ends: 72 [2021-12-15 23:49:34,852 INFO L226 Difference]: Without dead ends: 45 [2021-12-15 23:49:34,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 23:49:34,854 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 2 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:34,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2021-12-15 23:49:34,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-15 23:49:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-15 23:49:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-12-15 23:49:34,861 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 26 [2021-12-15 23:49:34,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:34,861 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-12-15 23:49:34,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-12-15 23:49:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-15 23:49:34,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:49:34,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:34,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:35,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:35,072 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:49:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:49:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash 305949144, now seen corresponding path program 1 times [2021-12-15 23:49:35,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:49:35,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352254986] [2021-12-15 23:49:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:49:35,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:49:35,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:49:35,074 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:49:35,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-15 23:49:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:49:35,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-15 23:49:35,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:49:35,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 23:49:35,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:49:35,789 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:49:35,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352254986] [2021-12-15 23:49:35,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352254986] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:49:35,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:49:35,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 23:49:35,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029331338] [2021-12-15 23:49:35,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:49:35,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 23:49:35,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:49:35,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 23:49:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:49:35,791 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:35,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:49:35,947 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-12-15 23:49:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 23:49:35,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 28 [2021-12-15 23:49:35,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:49:35,947 INFO L225 Difference]: With dead ends: 45 [2021-12-15 23:49:35,947 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 23:49:35,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-15 23:49:35,948 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:49:35,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 41 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2021-12-15 23:49:35,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 23:49:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 23:49:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 23:49:35,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-12-15 23:49:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:49:35,949 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 23:49:35,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:49:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 23:49:35,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 23:49:35,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:49:35,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-15 23:49:36,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:49:36,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 23:49:36,664 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-12-15 23:49:36,664 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-12-15 23:49:36,664 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-12-15 23:49:36,664 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-12-15 23:49:36,664 INFO L854 garLoopResultBuilder]: At program point L118(lines 109 119) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_#res#1| .cse0) (= |ULTIMATE.start_main_~x~0#1| .cse0) (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~0#1|)) .cse0) |ULTIMATE.start_main_#t~short16#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (= |ULTIMATE.start___signbit_float_~x#1| .cse0))) [2021-12-15 23:49:36,664 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-12-15 23:49:36,664 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-12-15 23:49:36,664 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L854 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_#res#1| .cse0) (= |ULTIMATE.start_main_~x~0#1| .cse0) |ULTIMATE.start_main_#t~short16#1| (= |ULTIMATE.start_main_~res~0#1| .cse0) (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (= |ULTIMATE.start___signbit_float_~x#1| .cse0))) [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_main_~x~0#1| .cse0) (= |ULTIMATE.start_fmod_float_~x#1| .cse0) (or (fp.lt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)) (fp.gt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24))))) [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-12-15 23:49:36,665 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_fmod_float_#res#1| .cse0) (= |ULTIMATE.start_main_~x~0#1| .cse0) (= |ULTIMATE.start_fmod_float_~x#1| .cse0))) [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-12-15 23:49:36,666 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_main_~x~0#1| .cse0) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_~hy~0#1_24| (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_24|))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) (fp.neg (_ +zero 8 24))) (= |ULTIMATE.start_fmod_float_~i~0#1| (bvshl .cse1 (_ bv8 32))) (not (bvslt (bvxor |v_ULTIMATE.start_fmod_float_~hx~0#1_39| (bvand (_ bv2147483648 32) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) .cse1))))) (= |ULTIMATE.start_fmod_float_~x#1| .cse0))) [2021-12-15 23:49:36,666 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L861 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2021-12-15 23:49:36,667 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-12-15 23:49:36,667 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_main_~x~0#1| .cse0) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ BitVec 32))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) (fp.neg (_ +zero 8 24))) (not (bvslt (bvxor |v_ULTIMATE.start_fmod_float_~hx~0#1_39| (bvand (_ bv2147483648 32) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|)) |ULTIMATE.start_fmod_float_~hy~0#1|)))) (exists ((|v_ULTIMATE.start_fmod_float_~hy~0#1_24| (_ BitVec 32))) (= |ULTIMATE.start_fmod_float_~hy~0#1| (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_24|))) (= |ULTIMATE.start_fmod_float_~x#1| .cse0))) [2021-12-15 23:49:36,670 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:49:36,672 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:49:36,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,679 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,680 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,680 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,680 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,680 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:49:36 BoogieIcfgContainer [2021-12-15 23:49:36,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:49:36,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:49:36,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:49:36,707 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:49:36,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:26" (3/4) ... [2021-12-15 23:49:36,709 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 23:49:36,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-12-15 23:49:36,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-15 23:49:36,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 23:49:36,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 23:49:36,739 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 23:49:36,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:49:36,739 INFO L158 Benchmark]: Toolchain (without parser) took 13092.46ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 26.0MB in the end (delta: 8.7MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,740 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 37.7MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:49:36,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.80ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.6MB in the beginning and 49.7MB in the end (delta: -15.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.87ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 47.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,740 INFO L158 Benchmark]: Boogie Preprocessor took 54.23ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 45.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,741 INFO L158 Benchmark]: RCFGBuilder took 2628.46ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 45.1MB in the end (delta: 562.8kB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,741 INFO L158 Benchmark]: TraceAbstraction took 10037.32ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 29.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,741 INFO L158 Benchmark]: Witness Printer took 32.77ms. Allocated memory is still 69.2MB. Free memory was 29.1MB in the beginning and 26.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 23:49:36,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 37.7MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.80ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.6MB in the beginning and 49.7MB in the end (delta: -15.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.87ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 47.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.23ms. Allocated memory is still 69.2MB. Free memory was 47.7MB in the beginning and 45.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2628.46ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 45.1MB in the end (delta: 562.8kB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10037.32ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 29.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 32.77ms. Allocated memory is still 69.2MB. Free memory was 29.1MB in the beginning and 26.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] * 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 - PositiveResult [Line: 137]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 328 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 328 mSDsluCounter, 1675 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 203 IncrementalHoareTripleChecker+Unchecked, 1243 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 432 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 63, 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, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 164 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 147 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 165 ConstructedInterpolants, 32 QuantifiedInterpolants, 1196 SizeOfPredicates, 56 NumberOfNonLiveVariables, 687 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1/1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant [2021-12-15 23:49:36,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_39 : bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24 : bv32 :: (~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_39[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_39[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_39[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && i == ~bvshl32(~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24), 8bv32)) && !~bvslt32(~bvxor32(v_ULTIMATE.start_fmod_float_~hx~0#1_39, ~bvand32(2147483648bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_39)), ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24)))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (~fp.lt~FLOAT(y, ~Pluszero~LONGDOUBLE()) || ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant [2021-12-15 23:49:36,760 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,760 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2021-12-15 23:49:36,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2021-12-15 23:49:36,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_39 : bv32 :: ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_39[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_39[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_39[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && !~bvslt32(~bvxor32(v_ULTIMATE.start_fmod_float_~hx~0#1_39, ~bvand32(2147483648bv32, v_ULTIMATE.start_fmod_float_~hx~0#1_39)), hy))) && (\exists v_ULTIMATE.start_fmod_float_~hy~0#1_24 : bv32 :: hy == ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24))) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2021-12-15 23:49:36,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE