./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1130a.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 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:57:29,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:57:29,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:57:29,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:57:29,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:57:29,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:57:29,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:57:29,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:57:29,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:57:29,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:57:29,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:57:29,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:57:29,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:57:29,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:57:29,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:57:29,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:57:29,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:57:29,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:57:29,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:57:29,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:57:29,599 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:57:29,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:57:29,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:57:29,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:57:29,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:57:29,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:57:29,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:57:29,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:57:29,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:57:29,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:57:29,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:57:29,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:57:29,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:57:29,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:57:29,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:57:29,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:57:29,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:57:29,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:57:29,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:57:29,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:57:29,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:57:29,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:57:29,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:57:29,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:57:29,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:57:29,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:57:29,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:57:29,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:57:29,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:57:29,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:57:29,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:57:29,650 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:57:29,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:57:29,651 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:57:29,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:57:29,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:57:29,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:57:29,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:57:29,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:57:29,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:57:29,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:57:29,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:57:29,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:57:29,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:57:29,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:57:29,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:57:29,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:57:29,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:29,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:57:29,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:57:29,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:57:29,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:57:29,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:57:29,655 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:57:29,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:57:29,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:57:29,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a [2022-07-21 01:57:29,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:57:29,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:57:29,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:57:29,953 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:57:29,954 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:57:29,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-07-21 01:57:29,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca0cdae2/ae60025d386a46d5ba33d8dfc2e72c2b/FLAGf15941679 [2022-07-21 01:57:30,309 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:57:30,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-07-21 01:57:30,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca0cdae2/ae60025d386a46d5ba33d8dfc2e72c2b/FLAGf15941679 [2022-07-21 01:57:30,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca0cdae2/ae60025d386a46d5ba33d8dfc2e72c2b [2022-07-21 01:57:30,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:57:30,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:57:30,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:30,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:57:30,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:57:30,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:30" (1/1) ... [2022-07-21 01:57:30,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27297239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:30, skipping insertion in model container [2022-07-21 01:57:30,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:30" (1/1) ... [2022-07-21 01:57:30,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:57:30,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:57:30,999 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_1130a.c[2907,2920] [2022-07-21 01:57:31,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:31,016 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:57:31,054 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_1130a.c[2907,2920] [2022-07-21 01:57:31,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:31,069 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:57:31,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31 WrapperNode [2022-07-21 01:57:31,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:31,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:31,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:57:31,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:57:31,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,114 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 223 [2022-07-21 01:57:31,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:31,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:57:31,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:57:31,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:57:31,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:57:31,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:57:31,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:57:31,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:57:31,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (1/1) ... [2022-07-21 01:57:31,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:31,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:57:31,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:57:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:57:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:57:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:57:31,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-21 01:57:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:57:31,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:57:31,327 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:57:31,328 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:57:31,611 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:57:31,616 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:57:31,618 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-21 01:57:31,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:31 BoogieIcfgContainer [2022-07-21 01:57:31,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:57:31,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:57:31,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:57:31,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:57:31,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:30" (1/3) ... [2022-07-21 01:57:31,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db53678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:31, skipping insertion in model container [2022-07-21 01:57:31,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:31" (2/3) ... [2022-07-21 01:57:31,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db53678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:31, skipping insertion in model container [2022-07-21 01:57:31,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:31" (3/3) ... [2022-07-21 01:57:31,625 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2022-07-21 01:57:31,635 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:57:31,635 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:57:31,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:57:31,673 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d9e5106, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b5d30c8 [2022-07-21 01:57:31,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:57:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.793103448275862) internal successors, (104), 59 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:31,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 01:57:31,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:31,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:31,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:31,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash -682512150, now seen corresponding path program 1 times [2022-07-21 01:57:31,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:57:31,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758215219] [2022-07-21 01:57:31,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:31,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:57:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:31,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:57:31,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758215219] [2022-07-21 01:57:31,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758215219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:31,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:31,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:57:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804098417] [2022-07-21 01:57:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:31,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:57:31,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:57:31,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:57:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:31,816 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.793103448275862) internal successors, (104), 59 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:31,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:31,838 INFO L93 Difference]: Finished difference Result 117 states and 204 transitions. [2022-07-21 01:57:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:57:31,840 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-21 01:57:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:31,851 INFO L225 Difference]: With dead ends: 117 [2022-07-21 01:57:31,852 INFO L226 Difference]: Without dead ends: 56 [2022-07-21 01:57:31,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:31,856 INFO L413 NwaCegarLoop]: 81 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, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:31,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:57:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-21 01:57:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-21 01:57:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2022-07-21 01:57:31,878 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 12 [2022-07-21 01:57:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:31,878 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2022-07-21 01:57:31,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2022-07-21 01:57:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 01:57:31,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:31,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:31,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:57:31,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash 337837613, now seen corresponding path program 1 times [2022-07-21 01:57:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:57:31,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923826483] [2022-07-21 01:57:31,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:31,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:57:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:57:31,917 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:57:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:57:31,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:57:31,982 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:57:31,983 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:57:31,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:57:31,989 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:57:31,991 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:57:32,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:57:32 BoogieIcfgContainer [2022-07-21 01:57:32,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:57:32,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:57:32,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:57:32,014 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:57:32,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:31" (3/4) ... [2022-07-21 01:57:32,016 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:57:32,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:57:32,017 INFO L158 Benchmark]: Toolchain (without parser) took 1237.42ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 30.9MB in the end (delta: 7.0MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:32,017 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.5MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:32,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.42ms. Allocated memory is still 62.9MB. Free memory was 37.8MB in the beginning and 43.9MB in the end (delta: -6.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:32,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.86ms. Allocated memory is still 62.9MB. Free memory was 43.9MB in the beginning and 41.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:32,018 INFO L158 Benchmark]: Boogie Preprocessor took 52.00ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 39.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:32,018 INFO L158 Benchmark]: RCFGBuilder took 451.50ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 40.6MB in the end (delta: -1.4MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-07-21 01:57:32,019 INFO L158 Benchmark]: TraceAbstraction took 393.25ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 31.1MB in the end (delta: 8.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:32,019 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 62.9MB. Free memory was 31.1MB in the beginning and 30.9MB in the end (delta: 240.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:32,020 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 46.1MB. Free memory was 27.5MB in the beginning and 27.5MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.42ms. Allocated memory is still 62.9MB. Free memory was 37.8MB in the beginning and 43.9MB in the end (delta: -6.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.86ms. Allocated memory is still 62.9MB. Free memory was 43.9MB in the beginning and 41.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.00ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 39.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 451.50ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 40.6MB in the end (delta: -1.4MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * TraceAbstraction took 393.25ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 31.1MB in the end (delta: 8.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 62.9MB. Free memory was 31.1MB in the beginning and 30.9MB in the end (delta: 240.6kB). 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 34, 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)=0, \old(y)=4294967297, one_fmod=1, x=0, y=4294967297, 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 VAL [\old(x)=0, \old(y)=4294967297, hx=0, hy=-1, one_fmod=1, sx=0, x=0, y=4294967297, Zero_fmod={4:0}] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=4294967297, hx=0, hy=2139095041, one_fmod=1, sx=0, x=0, y=4294967297, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=4294967297, hx=0, hy=2139095041, one_fmod=1, sx=0, x=0, y=4294967297, 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) == 0 VAL [one_fmod=1, res=4294967298, res == 0.0f && __signbit_float(res) == 0=0, x=0, y=4294967297, Zero_fmod={4:0}] [L136] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L137] reach_error() VAL [one_fmod=1, res=4294967298, x=0, y=4294967297, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 81 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, 81 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=60occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 01:57:32,065 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_1130a.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 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:57:33,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:57:33,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:57:33,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:57:33,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:57:33,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:57:33,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:57:33,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:57:33,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:57:33,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:57:33,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:57:33,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:57:33,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:57:33,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:57:33,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:57:33,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:57:33,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:57:33,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:57:33,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:57:33,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:57:33,656 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:57:33,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:57:33,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:57:33,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:57:33,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:57:33,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:57:33,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:57:33,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:57:33,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:57:33,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:57:33,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:57:33,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:57:33,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:57:33,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:57:33,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:57:33,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:57:33,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:57:33,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:57:33,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:57:33,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:57:33,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:57:33,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:57:33,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:57:33,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:57:33,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:57:33,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:57:33,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:57:33,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:57:33,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:57:33,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:57:33,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:57:33,702 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:57:33,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:57:33,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:57:33,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:57:33,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:57:33,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:57:33,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:57:33,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:33,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:57:33,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:57:33,714 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:57:33,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:57:33,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:57:33,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:57:33,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4beb2d56fd26727d06ab5e32646878129bf03feaf41ed8f7c7126586310d6a [2022-07-21 01:57:33,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:57:33,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:57:33,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:57:33,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:57:33,986 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:57:33,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-07-21 01:57:34,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4374ee9ca/7c16b714f1544c5aadf761c2da457849/FLAG0a624dab3 [2022-07-21 01:57:34,369 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:57:34,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130a.c [2022-07-21 01:57:34,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4374ee9ca/7c16b714f1544c5aadf761c2da457849/FLAG0a624dab3 [2022-07-21 01:57:34,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4374ee9ca/7c16b714f1544c5aadf761c2da457849 [2022-07-21 01:57:34,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:57:34,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:57:34,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:34,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:57:34,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:57:34,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501fcb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34, skipping insertion in model container [2022-07-21 01:57:34,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:57:34,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:57:34,602 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_1130a.c[2907,2920] [2022-07-21 01:57:34,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:34,622 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:57:34,658 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_1130a.c[2907,2920] [2022-07-21 01:57:34,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:34,679 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:57:34,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34 WrapperNode [2022-07-21 01:57:34,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:34,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:34,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:57:34,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:57:34,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,726 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 187 [2022-07-21 01:57:34,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:34,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:57:34,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:57:34,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:57:34,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:57:34,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:57:34,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:57:34,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:57:34,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (1/1) ... [2022-07-21 01:57:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:34,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:57:34,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:57:34,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:57:34,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:57:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:57:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-21 01:57:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 01:57:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:57:34,867 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:57:34,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:57:37,518 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:57:37,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:57:37,522 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-21 01:57:37,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:37 BoogieIcfgContainer [2022-07-21 01:57:37,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:57:37,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:57:37,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:57:37,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:57:37,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:34" (1/3) ... [2022-07-21 01:57:37,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5af50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:37, skipping insertion in model container [2022-07-21 01:57:37,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:34" (2/3) ... [2022-07-21 01:57:37,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5af50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:37, skipping insertion in model container [2022-07-21 01:57:37,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:37" (3/3) ... [2022-07-21 01:57:37,529 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130a.c [2022-07-21 01:57:37,538 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:57:37,538 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:57:37,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:57:37,572 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@12ab7ed5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2cbcad85 [2022-07-21 01:57:37,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:57:37,575 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) [2022-07-21 01:57:37,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 01:57:37,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:37,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:37,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:37,584 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2022-07-21 01:57:37,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:37,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099251704] [2022-07-21 01:57:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:37,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:37,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:57:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:37,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:57:37,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:37,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:37,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:37,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099251704] [2022-07-21 01:57:37,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099251704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:37,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:37,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:57:37,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207591886] [2022-07-21 01:57:37,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:37,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:57:37,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:37,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:57:37,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:37,843 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) [2022-07-21 01:57:37,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:37,855 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2022-07-21 01:57:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:57:37,856 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 [2022-07-21 01:57:37,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:37,866 INFO L225 Difference]: With dead ends: 93 [2022-07-21 01:57:37,866 INFO L226 Difference]: Without dead ends: 44 [2022-07-21 01:57:37,868 INFO L412 NwaCegarLoop]: 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 [2022-07-21 01:57:37,871 INFO L413 NwaCegarLoop]: 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 [2022-07-21 01:57:37,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:57:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-21 01:57:37,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-07-21 01:57:37,896 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) [2022-07-21 01:57:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-07-21 01:57:37,900 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2022-07-21 01:57:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:37,901 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-07-21 01:57:37,901 INFO L496 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) [2022-07-21 01:57:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2022-07-21 01:57:37,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 01:57:37,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:37,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:37,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:38,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:38,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:38,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:38,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2022-07-21 01:57:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:38,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007449132] [2022-07-21 01:57:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:38,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:38,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:38,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:38,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:57:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:38,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-21 01:57:38,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:38,489 INFO L390 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 [2022-07-21 01:57:38,673 INFO L390 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 29 treesize of output 13 [2022-07-21 01:57:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:38,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:38,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:38,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007449132] [2022-07-21 01:57:38,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007449132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:38,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:38,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 01:57:38,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401773891] [2022-07-21 01:57:38,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:38,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 01:57:38,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 01:57:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:38,953 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) [2022-07-21 01:57:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:39,424 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2022-07-21 01:57:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 01:57:39,425 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 [2022-07-21 01:57:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:39,425 INFO L225 Difference]: With dead ends: 53 [2022-07-21 01:57:39,425 INFO L226 Difference]: Without dead ends: 44 [2022-07-21 01:57:39,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-21 01:57:39,426 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 5 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:39,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 240 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 55 Unchecked, 0.3s Time] [2022-07-21 01:57:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-21 01:57:39,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-07-21 01:57:39,430 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) [2022-07-21 01:57:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2022-07-21 01:57:39,430 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 59 transitions. Word has length 13 [2022-07-21 01:57:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:39,430 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 59 transitions. [2022-07-21 01:57:39,431 INFO L496 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) [2022-07-21 01:57:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 59 transitions. [2022-07-21 01:57:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 01:57:39,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:39,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:39,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:39,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:39,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:39,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1911951893, now seen corresponding path program 1 times [2022-07-21 01:57:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:39,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511619039] [2022-07-21 01:57:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:39,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:39,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:39,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:39,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 01:57:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:39,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 01:57:39,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:39,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:39,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:39,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511619039] [2022-07-21 01:57:39,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511619039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:39,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:39,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 01:57:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035588275] [2022-07-21 01:57:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:39,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 01:57:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 01:57:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 01:57:39,872 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) [2022-07-21 01:57:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:40,452 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-07-21 01:57:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 01:57:40,452 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 [2022-07-21 01:57:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:40,453 INFO L225 Difference]: With dead ends: 65 [2022-07-21 01:57:40,453 INFO L226 Difference]: Without dead ends: 62 [2022-07-21 01:57:40,453 INFO L412 NwaCegarLoop]: 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 [2022-07-21 01:57:40,454 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:40,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 169 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 01:57:40,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-21 01:57:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 46. [2022-07-21 01:57:40,458 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) [2022-07-21 01:57:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2022-07-21 01:57:40,458 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 14 [2022-07-21 01:57:40,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:40,458 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2022-07-21 01:57:40,459 INFO L496 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) [2022-07-21 01:57:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2022-07-21 01:57:40,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-21 01:57:40,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:40,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:40,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:40,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:40,678 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:40,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:40,678 INFO L85 PathProgramCache]: Analyzing trace with hash 791016935, now seen corresponding path program 1 times [2022-07-21 01:57:40,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:40,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480748519] [2022-07-21 01:57:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:40,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:40,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:40,680 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) [2022-07-21 01:57:40,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 01:57:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:40,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 01:57:40,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:41,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:41,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:41,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480748519] [2022-07-21 01:57:41,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480748519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:41,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:41,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 01:57:41,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485264232] [2022-07-21 01:57:41,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:41,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 01:57:41,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:41,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 01:57:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:41,084 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) [2022-07-21 01:57:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:41,652 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2022-07-21 01:57:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 01:57:41,653 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 [2022-07-21 01:57:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:41,653 INFO L225 Difference]: With dead ends: 64 [2022-07-21 01:57:41,653 INFO L226 Difference]: Without dead ends: 55 [2022-07-21 01:57:41,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-21 01:57:41,654 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 18 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:41,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 249 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 32 Unchecked, 0.5s Time] [2022-07-21 01:57:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-07-21 01:57:41,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2022-07-21 01:57:41,658 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) [2022-07-21 01:57:41,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2022-07-21 01:57:41,658 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 15 [2022-07-21 01:57:41,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:41,659 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2022-07-21 01:57:41,659 INFO L496 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) [2022-07-21 01:57:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2022-07-21 01:57:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-21 01:57:41,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:41,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:41,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:41,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:41,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:41,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:41,860 INFO L85 PathProgramCache]: Analyzing trace with hash -645654976, now seen corresponding path program 1 times [2022-07-21 01:57:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:41,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43110792] [2022-07-21 01:57:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:41,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:41,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:41,862 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) [2022-07-21 01:57:41,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 01:57:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:41,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-21 01:57:41,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:42,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:42,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:42,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43110792] [2022-07-21 01:57:42,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43110792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:42,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:42,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 01:57:42,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072898522] [2022-07-21 01:57:42,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:42,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 01:57:42,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:42,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 01:57:42,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 01:57:42,271 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) [2022-07-21 01:57:43,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:43,097 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2022-07-21 01:57:43,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 01:57:43,097 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 [2022-07-21 01:57:43,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:43,097 INFO L225 Difference]: With dead ends: 62 [2022-07-21 01:57:43,097 INFO L226 Difference]: Without dead ends: 53 [2022-07-21 01:57:43,098 INFO L412 NwaCegarLoop]: 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 [2022-07-21 01:57:43,098 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 141 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-07-21 01:57:43,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 366 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 01:57:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-21 01:57:43,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2022-07-21 01:57:43,101 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) [2022-07-21 01:57:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2022-07-21 01:57:43,101 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 18 [2022-07-21 01:57:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:43,101 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2022-07-21 01:57:43,102 INFO L496 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) [2022-07-21 01:57:43,102 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2022-07-21 01:57:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 01:57:43,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:43,102 INFO L195 NwaCegarLoop]: 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] [2022-07-21 01:57:43,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-21 01:57:43,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:43,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:43,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1896589553, now seen corresponding path program 1 times [2022-07-21 01:57:43,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:43,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644740039] [2022-07-21 01:57:43,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:43,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:43,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:43,314 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) [2022-07-21 01:57:43,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 01:57:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:43,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 01:57:43,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:43,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:43,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:43,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644740039] [2022-07-21 01:57:43,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644740039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:43,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:43,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 01:57:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347398236] [2022-07-21 01:57:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:43,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 01:57:43,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 01:57:43,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 01:57:43,531 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2022-07-21 01:57:43,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:43,901 INFO L93 Difference]: Finished difference Result 101 states and 131 transitions. [2022-07-21 01:57:43,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 01:57:43,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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 [2022-07-21 01:57:43,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:43,902 INFO L225 Difference]: With dead ends: 101 [2022-07-21 01:57:43,902 INFO L226 Difference]: Without dead ends: 71 [2022-07-21 01:57:43,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:43,903 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 132 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:43,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 103 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 01:57:43,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-21 01:57:43,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2022-07-21 01:57:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2022-07-21 01:57:43,907 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 24 [2022-07-21 01:57:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:43,907 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2022-07-21 01:57:43,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2022-07-21 01:57:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2022-07-21 01:57:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 01:57:43,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:43,907 INFO L195 NwaCegarLoop]: 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] [2022-07-21 01:57:43,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:44,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:44,116 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:44,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:44,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1844332961, now seen corresponding path program 1 times [2022-07-21 01:57:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:44,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485439431] [2022-07-21 01:57:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:44,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:44,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:44,118 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) [2022-07-21 01:57:44,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 01:57:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:44,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 01:57:44,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:44,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:44,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:44,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485439431] [2022-07-21 01:57:44,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485439431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:44,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:44,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 01:57:44,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928664820] [2022-07-21 01:57:44,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:44,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 01:57:44,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 01:57:44,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:44,568 INFO L87 Difference]: Start difference. First operand 52 states and 68 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) [2022-07-21 01:57:44,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:44,881 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2022-07-21 01:57:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 01:57:44,881 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 [2022-07-21 01:57:44,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:44,882 INFO L225 Difference]: With dead ends: 87 [2022-07-21 01:57:44,882 INFO L226 Difference]: Without dead ends: 52 [2022-07-21 01:57:44,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-21 01:57:44,883 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 11 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:44,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 228 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 33 Unchecked, 0.2s Time] [2022-07-21 01:57:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-21 01:57:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-21 01:57:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 51 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-07-21 01:57:44,887 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 25 [2022-07-21 01:57:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:44,887 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-07-21 01:57:44,888 INFO L496 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) [2022-07-21 01:57:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-07-21 01:57:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 01:57:44,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:44,888 INFO L195 NwaCegarLoop]: 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] [2022-07-21 01:57:44,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:45,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:45,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:45,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:45,094 INFO L85 PathProgramCache]: Analyzing trace with hash 101160342, now seen corresponding path program 1 times [2022-07-21 01:57:45,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:45,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429545482] [2022-07-21 01:57:45,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:45,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:45,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:45,096 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) [2022-07-21 01:57:45,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 01:57:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:45,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 01:57:45,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:45,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:45,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:45,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429545482] [2022-07-21 01:57:45,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429545482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:45,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:45,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 01:57:45,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081713300] [2022-07-21 01:57:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:45,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 01:57:45,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 01:57:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 01:57:45,262 INFO L87 Difference]: Start difference. First operand 52 states and 67 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) [2022-07-21 01:57:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:45,264 INFO L93 Difference]: Finished difference Result 88 states and 117 transitions. [2022-07-21 01:57:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 01:57:45,264 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 [2022-07-21 01:57:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:45,264 INFO L225 Difference]: With dead ends: 88 [2022-07-21 01:57:45,264 INFO L226 Difference]: Without dead ends: 53 [2022-07-21 01:57:45,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 01:57:45,265 INFO L413 NwaCegarLoop]: 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 [2022-07-21 01:57:45,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-07-21 01:57:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-21 01:57:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-07-21 01:57:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:45,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-07-21 01:57:45,268 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 26 [2022-07-21 01:57:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:45,269 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-07-21 01:57:45,269 INFO L496 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) [2022-07-21 01:57:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-07-21 01:57:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-21 01:57:45,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:45,270 INFO L195 NwaCegarLoop]: 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] [2022-07-21 01:57:45,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:45,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:45,478 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 305949144, now seen corresponding path program 1 times [2022-07-21 01:57:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:45,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461004882] [2022-07-21 01:57:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:45,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:45,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:45,479 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) [2022-07-21 01:57:45,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 01:57:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:45,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-21 01:57:45,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 01:57:46,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:46,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:46,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461004882] [2022-07-21 01:57:46,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461004882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:46,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:46,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 01:57:46,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847521779] [2022-07-21 01:57:46,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:46,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 01:57:46,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:46,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 01:57:46,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 01:57:46,048 INFO L87 Difference]: Start difference. First operand 53 states and 68 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) [2022-07-21 01:57:46,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:46,185 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2022-07-21 01:57:46,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 01:57:46,185 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 [2022-07-21 01:57:46,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:46,185 INFO L225 Difference]: With dead ends: 53 [2022-07-21 01:57:46,185 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 01:57:46,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-07-21 01:57:46,186 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:46,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-07-21 01:57:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 01:57:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 01:57:46,188 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) [2022-07-21 01:57:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 01:57:46,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-07-21 01:57:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:46,189 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 01:57:46,189 INFO L496 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) [2022-07-21 01:57:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 01:57:46,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 01:57:46,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:57:46,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:46,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:46,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 01:57:46,903 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2022-07-21 01:57:46,903 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2022-07-21 01:57:46,903 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:46,903 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2022-07-21 01:57:46,903 INFO L895 garLoopResultBuilder]: At program point L118(lines 109 119) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short16#1| (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (= (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|)) (_ +zero 8 24))) [2022-07-21 01:57:46,903 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point L136-2(lines 136 139) no Hoare annotation was computed. [2022-07-21 01:57:46,904 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= |ULTIMATE.start_main_~res~0#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short16#1| (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|)) [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (or (fp.lt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)) (fp.gt |ULTIMATE.start_fmod_float_~y#1| (_ +zero 8 24)))) [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L895 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_fmod_float_#res#1|) (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|)) [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2022-07-21 01:57:46,905 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ BitVec 32)) (|v_ULTIMATE.start_fmod_float_~hy~0#1_24| (_ BitVec 32))) (let ((.cse0 (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|)) (_ +zero 8 24)) (not (bvslt (bvxor (bvand |v_ULTIMATE.start_fmod_float_~hx~0#1_39| (_ bv2147483648 32)) |v_ULTIMATE.start_fmod_float_~hx~0#1_39|) .cse0)) (= |ULTIMATE.start_fmod_float_~i~0#1| (bvshl .cse0 (_ bv8 32)))))) (= (fp ((_ extract 31 31) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start_fmod_float_~hx~0#1|)) (_ +zero 8 24))) [2022-07-21 01:57:46,905 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L902 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2022-07-21 01:57:46,906 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2022-07-21 01:57:46,906 INFO L895 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: (and (= |ULTIMATE.start_fmod_float_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_fmod_float_~hy~0#1_22| (_ BitVec 32))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fmod_float_~hy~0#1_22|) |ULTIMATE.start_fmod_float_~hy~0#1|)) (= (_ +zero 8 24) |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_fmod_float_~hx~0#1_38| (_ BitVec 32))) (and (not (bvslt (bvxor (bvand |v_ULTIMATE.start_fmod_float_~hx~0#1_38| (_ bv2147483648 32)) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|) |ULTIMATE.start_fmod_float_~hy~0#1|)) (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|) ((_ extract 30 23) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|) ((_ extract 22 0) |v_ULTIMATE.start_fmod_float_~hx~0#1_38|)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 30 23) |ULTIMATE.start_fmod_float_~hx~0#1|) ((_ extract 22 0) |ULTIMATE.start_fmod_float_~hx~0#1|)) (_ +zero 8 24))) [2022-07-21 01:57:46,910 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:46,911 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:57:46,923 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,924 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,928 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-07-21 01:57:46,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:57:46 BoogieIcfgContainer [2022-07-21 01:57:46,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:57:46,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:57:46,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:57:46,942 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:57:46,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:37" (3/4) ... [2022-07-21 01:57:46,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 01:57:46,951 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-07-21 01:57:46,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-21 01:57:46,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 01:57:46,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 01:57:46,972 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:57:46,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:57:46,973 INFO L158 Benchmark]: Toolchain (without parser) took 12583.55ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 40.7MB in the beginning and 28.7MB in the end (delta: 12.0MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-07-21 01:57:46,973 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 42.2MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:46,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.89ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 41.1MB in the end (delta: -547.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 01:57:46,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.22ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:46,974 INFO L158 Benchmark]: Boogie Preprocessor took 34.27ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 37.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:46,974 INFO L158 Benchmark]: RCFGBuilder took 2761.27ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 39.1MB in the end (delta: -2.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-07-21 01:57:46,974 INFO L158 Benchmark]: TraceAbstraction took 9417.04ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 38.6MB in the beginning and 31.0MB in the end (delta: 7.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:46,974 INFO L158 Benchmark]: Witness Printer took 30.43ms. Allocated memory is still 79.7MB. Free memory was 31.0MB in the beginning and 28.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:46,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 42.2MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.89ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 41.1MB in the end (delta: -547.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.22ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.27ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 37.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2761.27ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 39.1MB in the end (delta: -2.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9417.04ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 38.6MB in the beginning and 31.0MB in the end (delta: 7.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Witness Printer took 30.43ms. Allocated memory is still 79.7MB. Free memory was 31.0MB in the beginning and 28.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. 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_~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_~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_~hy~0#1_24,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,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: 9.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 1588 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 158 IncrementalHoareTripleChecker+Unchecked, 1130 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 458 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=8, InterpolantAutomatonStates: 62, 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, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 160 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 165 ConstructedInterpolants, 28 QuantifiedInterpolants, 1085 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 [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_39,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_24,QUANTIFIED] [2022-07-21 01:57:46,980 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 == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && (\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]) == ~Pluszero~LONGDOUBLE() && !~bvslt32(~bvxor32(~bvand32(v_ULTIMATE.start_fmod_float_~hx~0#1_39, 2147483648bv32), v_ULTIMATE.start_fmod_float_~hx~0#1_39), ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24))) && i == ~bvshl32(~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_24), 8bv32))) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~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 == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == x) && (~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 [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hy~0#1_22,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] [2022-07-21 01:57:46,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fmod_float_~hx~0#1_38,QUANTIFIED] Derived loop invariant: (((x == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_fmod_float_~hy~0#1_22 : bv32 :: ~bvand32(2147483647bv32, v_ULTIMATE.start_fmod_float_~hy~0#1_22) == hy)) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_ULTIMATE.start_fmod_float_~hx~0#1_38 : bv32 :: !~bvslt32(~bvxor32(~bvand32(v_ULTIMATE.start_fmod_float_~hx~0#1_38, 2147483648bv32), v_ULTIMATE.start_fmod_float_~hx~0#1_38), hy) && ~fp~LONGDOUBLE(v_ULTIMATE.start_fmod_float_~hx~0#1_38[31:31], v_ULTIMATE.start_fmod_float_~hx~0#1_38[30:23], v_ULTIMATE.start_fmod_float_~hx~0#1_38[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((x == ~Pluszero~LONGDOUBLE() && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result) && x == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x RESULT: Ultimate proved your program to be correct! [2022-07-21 01:57:47,029 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 Writing output log to file Ultimate.log Result: TRUE