./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/bitvector/soft_float_1-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4f20531c98faa0af8884f2ddaf47888911b3a46 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/bitvector/soft_float_1-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4f20531c98faa0af8884f2ddaf47888911b3a46 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:04:25,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:04:25,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:04:25,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 03:04:25,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 03:04:25,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 03:04:25,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 03:04:25,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 03:04:25,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 03:04:25,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 03:04:25,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 03:04:25,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 03:04:25,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 03:04:25,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 03:04:25,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 03:04:25,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 03:04:25,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 03:04:25,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 03:04:25,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 03:04:25,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 03:04:25,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 03:04:25,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 03:04:25,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 03:04:25,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 03:04:25,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 03:04:25,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:04:25,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:04:25,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:04:25,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:04:25,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:04:25,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:04:25,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:04:25,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:04:25,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:04:25,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:04:25,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:04:25,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:04:25,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:04:25,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:04:25,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:04:25,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:04:25,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 03:04:25,337 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:04:25,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:04:25,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:04:25,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:04:25,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:04:25,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:04:25,340 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:04:25,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:04:25,341 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:04:25,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 03:04:25,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:04:25,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:04:25,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:04:25,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:04:25,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:04:25,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:04:25,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:04:25,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2021-08-29 03:04:25,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:04:25,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:04:25,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:04:25,642 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:04:25,642 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:04:25,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-08-29 03:04:25,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c2574c4/21aa6cac0cd14c71b4ca7ae0145498c4/FLAGeba5f4a4b [2021-08-29 03:04:26,042 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:04:26,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-08-29 03:04:26,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c2574c4/21aa6cac0cd14c71b4ca7ae0145498c4/FLAGeba5f4a4b [2021-08-29 03:04:26,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c2574c4/21aa6cac0cd14c71b4ca7ae0145498c4 [2021-08-29 03:04:26,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:04:26,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:04:26,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:04:26,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:04:26,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:04:26,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c94f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26, skipping insertion in model container [2021-08-29 03:04:26,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:04:26,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:04:26,546 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-08-29 03:04:26,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:04:26,581 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:04:26,620 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-08-29 03:04:26,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:04:26,648 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:04:26,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26 WrapperNode [2021-08-29 03:04:26,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:04:26,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:04:26,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:04:26,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:04:26,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:04:26,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:04:26,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:04:26,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:04:26,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:04:26,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:04:26,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:04:26,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:04:26,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (1/1) ... [2021-08-29 03:04:26,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:04:26,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:04:26,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 03:04:26,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 03:04:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 03:04:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:04:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:04:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:04:26,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:04:26,908 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-08-29 03:04:26,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:26 BoogieIcfgContainer [2021-08-29 03:04:26,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:04:26,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:04:26,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:04:26,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:04:26,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:04:26" (1/3) ... [2021-08-29 03:04:26,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123254f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:04:26, skipping insertion in model container [2021-08-29 03:04:26,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:26" (2/3) ... [2021-08-29 03:04:26,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123254f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:04:26, skipping insertion in model container [2021-08-29 03:04:26,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:26" (3/3) ... [2021-08-29 03:04:26,913 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-08-29 03:04:26,916 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:04:26,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-08-29 03:04:26,943 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:04:26,947 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 03:04:26,947 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-29 03:04:26,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:26,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 03:04:26,961 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:26,961 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:26,961 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:26,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:26,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1626643796, now seen corresponding path program 1 times [2021-08-29 03:04:26,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:26,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045944022] [2021-08-29 03:04:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:26,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:27,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:27,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:27,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045944022] [2021-08-29 03:04:27,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045944022] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:27,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:27,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 03:04:27,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345294107] [2021-08-29 03:04:27,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 03:04:27,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:27,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 03:04:27,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:04:27,249 INFO L87 Difference]: Start difference. First operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 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 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:28,058 INFO L93 Difference]: Finished difference Result 458 states and 692 transitions. [2021-08-29 03:04:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-29 03:04:28,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-29 03:04:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:28,068 INFO L225 Difference]: With dead ends: 458 [2021-08-29 03:04:28,068 INFO L226 Difference]: Without dead ends: 348 [2021-08-29 03:04:28,070 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 68.03ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-08-29 03:04:28,073 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 926 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 519.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.02ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 661.79ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:28,074 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 0 Invalid, 978 Unknown, 0 Unchecked, 9.02ms Time], IncrementalHoareTripleChecker [24 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 661.79ms Time] [2021-08-29 03:04:28,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-08-29 03:04:28,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 142. [2021-08-29 03:04:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 136 states have (on average 1.5147058823529411) internal successors, (206), 141 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 206 transitions. [2021-08-29 03:04:28,105 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 206 transitions. Word has length 18 [2021-08-29 03:04:28,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:28,105 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 206 transitions. [2021-08-29 03:04:28,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 206 transitions. [2021-08-29 03:04:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 03:04:28,106 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:28,107 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:28,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 03:04:28,107 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:28,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1626703378, now seen corresponding path program 1 times [2021-08-29 03:04:28,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:28,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185997399] [2021-08-29 03:04:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:28,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:28,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:28,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185997399] [2021-08-29 03:04:28,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185997399] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:28,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:28,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 03:04:28,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782903980] [2021-08-29 03:04:28,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:04:28,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:28,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:04:28,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:04:28,171 INFO L87 Difference]: Start difference. First operand 142 states and 206 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:28,471 INFO L93 Difference]: Finished difference Result 299 states and 427 transitions. [2021-08-29 03:04:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 03:04:28,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-29 03:04:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:28,473 INFO L225 Difference]: With dead ends: 299 [2021-08-29 03:04:28,473 INFO L226 Difference]: Without dead ends: 215 [2021-08-29 03:04:28,473 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.66ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 03:04:28,474 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 208 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 212.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.20ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 265.43ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:28,474 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 0 Invalid, 660 Unknown, 0 Unchecked, 2.20ms Time], IncrementalHoareTripleChecker [11 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 265.43ms Time] [2021-08-29 03:04:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-08-29 03:04:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 202. [2021-08-29 03:04:28,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 196 states have (on average 1.4744897959183674) internal successors, (289), 201 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:28,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 289 transitions. [2021-08-29 03:04:28,485 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 289 transitions. Word has length 18 [2021-08-29 03:04:28,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:28,485 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 289 transitions. [2021-08-29 03:04:28,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:28,486 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 289 transitions. [2021-08-29 03:04:28,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 03:04:28,487 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:28,487 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:28,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 03:04:28,487 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:28,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:28,488 INFO L82 PathProgramCache]: Analyzing trace with hash 442130173, now seen corresponding path program 1 times [2021-08-29 03:04:28,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:28,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797483310] [2021-08-29 03:04:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:28,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:28,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:28,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:28,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797483310] [2021-08-29 03:04:28,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797483310] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:28,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:28,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 03:04:28,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836599226] [2021-08-29 03:04:28,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 03:04:28,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:28,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 03:04:28,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:04:28,573 INFO L87 Difference]: Start difference. First operand 202 states and 289 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:29,028 INFO L93 Difference]: Finished difference Result 315 states and 421 transitions. [2021-08-29 03:04:29,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-29 03:04:29,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 22 [2021-08-29 03:04:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:29,030 INFO L225 Difference]: With dead ends: 315 [2021-08-29 03:04:29,030 INFO L226 Difference]: Without dead ends: 267 [2021-08-29 03:04:29,030 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 48.73ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-08-29 03:04:29,031 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 415 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.38ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 398.85ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:29,031 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 0 Invalid, 961 Unknown, 0 Unchecked, 3.38ms Time], IncrementalHoareTripleChecker [11 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 398.85ms Time] [2021-08-29 03:04:29,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-08-29 03:04:29,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 191. [2021-08-29 03:04:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 185 states have (on average 1.4648648648648648) internal successors, (271), 190 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 271 transitions. [2021-08-29 03:04:29,043 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 271 transitions. Word has length 22 [2021-08-29 03:04:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:29,043 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 271 transitions. [2021-08-29 03:04:29,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,044 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 271 transitions. [2021-08-29 03:04:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-29 03:04:29,045 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:29,045 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:29,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 03:04:29,045 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1605480230, now seen corresponding path program 1 times [2021-08-29 03:04:29,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:29,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721998378] [2021-08-29 03:04:29,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:29,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:29,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:29,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721998378] [2021-08-29 03:04:29,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721998378] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:29,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:29,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 03:04:29,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008910891] [2021-08-29 03:04:29,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 03:04:29,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 03:04:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:04:29,100 INFO L87 Difference]: Start difference. First operand 191 states and 271 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:29,275 INFO L93 Difference]: Finished difference Result 345 states and 487 transitions. [2021-08-29 03:04:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 03:04:29,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-29 03:04:29,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:29,277 INFO L225 Difference]: With dead ends: 345 [2021-08-29 03:04:29,277 INFO L226 Difference]: Without dead ends: 270 [2021-08-29 03:04:29,279 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 03:04:29,287 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.65ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 166.84ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:29,288 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 262 Unknown, 0 Unchecked, 0.65ms Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 166.84ms Time] [2021-08-29 03:04:29,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-08-29 03:04:29,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 241. [2021-08-29 03:04:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 235 states have (on average 1.4297872340425533) internal successors, (336), 240 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 336 transitions. [2021-08-29 03:04:29,299 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 336 transitions. Word has length 26 [2021-08-29 03:04:29,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:29,299 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 336 transitions. [2021-08-29 03:04:29,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,299 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 336 transitions. [2021-08-29 03:04:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-29 03:04:29,300 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:29,300 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:29,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 03:04:29,300 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:29,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:29,301 INFO L82 PathProgramCache]: Analyzing trace with hash -855546000, now seen corresponding path program 1 times [2021-08-29 03:04:29,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:29,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388560649] [2021-08-29 03:04:29,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:29,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:29,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:29,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388560649] [2021-08-29 03:04:29,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388560649] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:29,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:29,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 03:04:29,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776719405] [2021-08-29 03:04:29,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 03:04:29,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 03:04:29,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:04:29,381 INFO L87 Difference]: Start difference. First operand 241 states and 336 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:29,689 INFO L93 Difference]: Finished difference Result 608 states and 834 transitions. [2021-08-29 03:04:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:04:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-29 03:04:29,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:29,691 INFO L225 Difference]: With dead ends: 608 [2021-08-29 03:04:29,691 INFO L226 Difference]: Without dead ends: 443 [2021-08-29 03:04:29,691 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.72ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:04:29,692 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 369 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 222.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275.19ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:29,692 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 0 Invalid, 533 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [15 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 275.19ms Time] [2021-08-29 03:04:29,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-08-29 03:04:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 298. [2021-08-29 03:04:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 292 states have (on average 1.4143835616438356) internal successors, (413), 297 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 413 transitions. [2021-08-29 03:04:29,701 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 413 transitions. Word has length 26 [2021-08-29 03:04:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:29,701 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 413 transitions. [2021-08-29 03:04:29,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 413 transitions. [2021-08-29 03:04:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-29 03:04:29,702 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:29,703 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:29,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 03:04:29,703 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:29,703 INFO L82 PathProgramCache]: Analyzing trace with hash 755236346, now seen corresponding path program 1 times [2021-08-29 03:04:29,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:29,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549846982] [2021-08-29 03:04:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:29,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:29,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:29,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549846982] [2021-08-29 03:04:29,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549846982] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:29,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:29,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 03:04:29,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917240751] [2021-08-29 03:04:29,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 03:04:29,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:29,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 03:04:29,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 03:04:29,759 INFO L87 Difference]: Start difference. First operand 298 states and 413 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:29,966 INFO L93 Difference]: Finished difference Result 429 states and 595 transitions. [2021-08-29 03:04:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:04:29,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-08-29 03:04:29,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:29,968 INFO L225 Difference]: With dead ends: 429 [2021-08-29 03:04:29,968 INFO L226 Difference]: Without dead ends: 354 [2021-08-29 03:04:29,969 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.60ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:04:29,969 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 109 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 144.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.90ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:29,969 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 0 Invalid, 431 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [2 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 181.90ms Time] [2021-08-29 03:04:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-08-29 03:04:29,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 312. [2021-08-29 03:04:29,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 306 states have (on average 1.3823529411764706) internal successors, (423), 311 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 423 transitions. [2021-08-29 03:04:29,979 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 423 transitions. Word has length 30 [2021-08-29 03:04:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:29,979 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 423 transitions. [2021-08-29 03:04:29,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 423 transitions. [2021-08-29 03:04:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-29 03:04:29,981 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:29,981 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:29,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 03:04:29,981 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:29,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:29,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1878814160, now seen corresponding path program 1 times [2021-08-29 03:04:29,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:29,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063000649] [2021-08-29 03:04:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:29,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:30,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:30,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 03:04:30,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063000649] [2021-08-29 03:04:30,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063000649] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:30,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:30,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 03:04:30,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729056348] [2021-08-29 03:04:30,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:04:30,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 03:04:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:04:30,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:04:30,036 INFO L87 Difference]: Start difference. First operand 312 states and 423 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:30,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:30,589 INFO L93 Difference]: Finished difference Result 813 states and 1106 transitions. [2021-08-29 03:04:30,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 03:04:30,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2021-08-29 03:04:30,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:30,592 INFO L225 Difference]: With dead ends: 813 [2021-08-29 03:04:30,592 INFO L226 Difference]: Without dead ends: 704 [2021-08-29 03:04:30,592 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 51.16ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-08-29 03:04:30,593 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 387 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 386.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.34ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 484.43ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:30,593 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 0 Invalid, 1129 Unknown, 0 Unchecked, 3.34ms Time], IncrementalHoareTripleChecker [7 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 484.43ms Time] [2021-08-29 03:04:30,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-08-29 03:04:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 450. [2021-08-29 03:04:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 444 states have (on average 1.382882882882883) internal successors, (614), 449 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 614 transitions. [2021-08-29 03:04:30,605 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 614 transitions. Word has length 30 [2021-08-29 03:04:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:30,606 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 614 transitions. [2021-08-29 03:04:30,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 614 transitions. [2021-08-29 03:04:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-29 03:04:30,606 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:30,606 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:30,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 03:04:30,607 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:30,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1878873742, now seen corresponding path program 1 times [2021-08-29 03:04:30,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 03:04:30,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263742215] [2021-08-29 03:04:30,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:30,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 03:04:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:04:30,636 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:04:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:04:30,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 03:04:30,666 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:04:30,667 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-08-29 03:04:30,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-08-29 03:04:30,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-08-29 03:04:30,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-08-29 03:04:30,668 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-08-29 03:04:30,669 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-08-29 03:04:30,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 03:04:30,672 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:04:30,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:04:30 BoogieIcfgContainer [2021-08-29 03:04:30,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:04:30,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:04:30,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:04:30,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:04:30,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:26" (3/4) ... [2021-08-29 03:04:30,698 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 03:04:30,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:04:30,698 INFO L158 Benchmark]: Toolchain (without parser) took 4266.74ms. Allocated memory was 58.7MB in the beginning and 100.7MB in the end (delta: 41.9MB). Free memory was 42.9MB in the beginning and 69.9MB in the end (delta: -27.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-08-29 03:04:30,698 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:04:30,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.95ms. Allocated memory is still 58.7MB. Free memory was 42.7MB in the beginning and 40.9MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-29 03:04:30,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.91ms. Allocated memory is still 58.7MB. Free memory was 40.7MB in the beginning and 38.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:04:30,699 INFO L158 Benchmark]: Boogie Preprocessor took 18.65ms. Allocated memory is still 58.7MB. Free memory was 38.4MB in the beginning and 36.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:04:30,699 INFO L158 Benchmark]: RCFGBuilder took 211.69ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 36.0MB in the end (delta: 655.9kB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-08-29 03:04:30,699 INFO L158 Benchmark]: TraceAbstraction took 3785.19ms. Allocated memory was 58.7MB in the beginning and 100.7MB in the end (delta: 41.9MB). Free memory was 35.6MB in the beginning and 69.9MB in the end (delta: -34.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 03:04:30,699 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 100.7MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:04:30,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.95ms. Allocated memory is still 58.7MB. Free memory was 42.7MB in the beginning and 40.9MB in the end (delta: 1.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.91ms. Allocated memory is still 58.7MB. Free memory was 40.7MB in the beginning and 38.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.65ms. Allocated memory is still 58.7MB. Free memory was 38.4MB in the beginning and 36.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 211.69ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 36.0MB in the end (delta: 655.9kB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3785.19ms. Allocated memory was 58.7MB in the beginning and 100.7MB in the end (delta: 41.9MB). Free memory was 35.6MB in the beginning and 69.9MB in the end (delta: -34.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 100.7MB. Free memory is still 69.9MB. 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 102, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L8] COND TRUE !(cond) [L9] reach_error() - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3729.94ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 13.23ms, AutomataDifference: 2894.28ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.33ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2459 SdHoareTripleChecker+Valid, 2434.45ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2459 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1936.02ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3243 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4883 IncrementalHoareTripleChecker+Invalid, 4954 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 0 mSDtfsCounter, 4883 mSolverCounterSat, 21.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 218.10ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=7, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 82.61ms AutomataMinimizationTime, 7 MinimizatonAttempts, 765 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.99ms SsaConstructionTime, 215.24ms SatisfiabilityAnalysisTime, 350.55ms InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 03:04:30,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 03:04:32,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 03:04:32,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 03:04:32,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-29 03:04:32,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 03:04:32,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 03:04:32,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 03:04:32,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 03:04:32,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 03:04:32,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 03:04:32,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 03:04:32,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 03:04:32,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 03:04:32,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 03:04:32,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 03:04:32,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 03:04:32,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 03:04:32,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 03:04:32,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 03:04:32,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 03:04:32,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 03:04:32,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 03:04:32,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 03:04:32,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 03:04:32,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 03:04:32,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 03:04:32,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 03:04:32,798 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 03:04:32,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 03:04:32,799 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 03:04:32,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:04:32,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 03:04:32,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 03:04:32,801 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 03:04:32,801 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 03:04:32,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 03:04:32,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 03:04:32,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 03:04:32,801 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2021-08-29 03:04:33,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 03:04:33,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 03:04:33,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 03:04:33,052 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 03:04:33,053 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 03:04:33,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-08-29 03:04:33,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8660db7a2/42e8f3fd1167435da914a0c6d416b876/FLAG5ce6fc11b [2021-08-29 03:04:33,471 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 03:04:33,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-08-29 03:04:33,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8660db7a2/42e8f3fd1167435da914a0c6d416b876/FLAG5ce6fc11b [2021-08-29 03:04:33,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8660db7a2/42e8f3fd1167435da914a0c6d416b876 [2021-08-29 03:04:33,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 03:04:33,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 03:04:33,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 03:04:33,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 03:04:33,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 03:04:33,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f27c5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33, skipping insertion in model container [2021-08-29 03:04:33,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 03:04:33,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 03:04:33,647 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-08-29 03:04:33,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:04:33,748 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 03:04:33,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-08-29 03:04:33,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 03:04:33,806 INFO L208 MainTranslator]: Completed translation [2021-08-29 03:04:33,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33 WrapperNode [2021-08-29 03:04:33,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 03:04:33,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 03:04:33,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 03:04:33,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 03:04:33,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 03:04:33,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 03:04:33,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 03:04:33,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 03:04:33,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 03:04:33,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 03:04:33,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 03:04:33,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 03:04:33,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (1/1) ... [2021-08-29 03:04:33,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 03:04:33,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 03:04:33,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 03:04:33,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 03:04:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 03:04:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 03:04:33,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 03:04:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 03:04:34,177 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 03:04:34,177 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-08-29 03:04:34,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:34 BoogieIcfgContainer [2021-08-29 03:04:34,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 03:04:34,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 03:04:34,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 03:04:34,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 03:04:34,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:04:33" (1/3) ... [2021-08-29 03:04:34,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f51944b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:04:34, skipping insertion in model container [2021-08-29 03:04:34,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:04:33" (2/3) ... [2021-08-29 03:04:34,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f51944b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:04:34, skipping insertion in model container [2021-08-29 03:04:34,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:34" (3/3) ... [2021-08-29 03:04:34,184 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-08-29 03:04:34,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 03:04:34,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-08-29 03:04:34,224 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 03:04:34,229 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 03:04:34,229 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-29 03:04:34,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 03:04:34,245 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:34,245 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:34,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:34,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:34,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1626643796, now seen corresponding path program 1 times [2021-08-29 03:04:34,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:34,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040444815] [2021-08-29 03:04:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:34,259 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:34,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:34,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:34,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 03:04:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:34,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:04:34,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:34,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:34,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:34,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:34,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040444815] [2021-08-29 03:04:34,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040444815] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:34,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:34,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-29 03:04:34,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784953690] [2021-08-29 03:04:34,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 03:04:34,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:34,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 03:04:34,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:04:34,631 INFO L87 Difference]: Start difference. First operand has 96 states, 89 states have (on average 1.7303370786516854) internal successors, (154), 95 states have internal predecessors, (154), 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 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:35,145 INFO L93 Difference]: Finished difference Result 397 states and 607 transitions. [2021-08-29 03:04:35,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:04:35,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-29 03:04:35,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:35,155 INFO L225 Difference]: With dead ends: 397 [2021-08-29 03:04:35,155 INFO L226 Difference]: Without dead ends: 295 [2021-08-29 03:04:35,157 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.21ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:04:35,164 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 527 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 337.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.79ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 421.83ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:35,165 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 0 Invalid, 553 Unknown, 0 Unchecked, 7.79ms Time], IncrementalHoareTripleChecker [15 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 421.83ms Time] [2021-08-29 03:04:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-08-29 03:04:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 120. [2021-08-29 03:04:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 119 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2021-08-29 03:04:35,202 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 18 [2021-08-29 03:04:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:35,202 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2021-08-29 03:04:35,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:35,203 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2021-08-29 03:04:35,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 03:04:35,204 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:35,204 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:35,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:35,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:35,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:35,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:35,412 INFO L82 PathProgramCache]: Analyzing trace with hash -908455500, now seen corresponding path program 1 times [2021-08-29 03:04:35,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:35,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512051929] [2021-08-29 03:04:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:35,413 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:35,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:35,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:35,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 03:04:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:35,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:04:35,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:35,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:35,583 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:35,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512051929] [2021-08-29 03:04:35,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512051929] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:35,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:35,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-29 03:04:35,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587365143] [2021-08-29 03:04:35,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 03:04:35,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:35,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 03:04:35,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:04:35,586 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:36,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:36,035 INFO L93 Difference]: Finished difference Result 394 states and 543 transitions. [2021-08-29 03:04:36,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:04:36,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-08-29 03:04:36,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:36,039 INFO L225 Difference]: With dead ends: 394 [2021-08-29 03:04:36,040 INFO L226 Difference]: Without dead ends: 337 [2021-08-29 03:04:36,041 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.33ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:04:36,042 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 476 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 336.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.38ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 397.83ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:36,042 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 0 Invalid, 532 Unknown, 0 Unchecked, 3.38ms Time], IncrementalHoareTripleChecker [14 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 397.83ms Time] [2021-08-29 03:04:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-08-29 03:04:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 186. [2021-08-29 03:04:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 185 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 269 transitions. [2021-08-29 03:04:36,071 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 269 transitions. Word has length 22 [2021-08-29 03:04:36,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:36,074 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 269 transitions. [2021-08-29 03:04:36,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:36,074 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 269 transitions. [2021-08-29 03:04:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 03:04:36,075 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:36,076 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:36,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:36,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:36,284 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:36,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:36,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1301482510, now seen corresponding path program 1 times [2021-08-29 03:04:36,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:36,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352631957] [2021-08-29 03:04:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:36,285 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:36,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:36,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:36,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 03:04:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:36,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:04:36,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:36,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:36,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:36,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352631957] [2021-08-29 03:04:36,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352631957] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:36,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:36,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-29 03:04:36,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754277984] [2021-08-29 03:04:36,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 03:04:36,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:36,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 03:04:36,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 03:04:36,427 INFO L87 Difference]: Start difference. First operand 186 states and 269 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:36,803 INFO L93 Difference]: Finished difference Result 378 states and 535 transitions. [2021-08-29 03:04:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 03:04:36,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-08-29 03:04:36,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:36,804 INFO L225 Difference]: With dead ends: 378 [2021-08-29 03:04:36,804 INFO L226 Difference]: Without dead ends: 295 [2021-08-29 03:04:36,805 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.54ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:04:36,806 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 226 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 302.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.72ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 350.45ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:36,806 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 0 Invalid, 527 Unknown, 0 Unchecked, 1.72ms Time], IncrementalHoareTripleChecker [9 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 350.45ms Time] [2021-08-29 03:04:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-08-29 03:04:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 278. [2021-08-29 03:04:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 272 states have (on average 1.474264705882353) internal successors, (401), 277 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:36,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 401 transitions. [2021-08-29 03:04:36,816 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 401 transitions. Word has length 22 [2021-08-29 03:04:36,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:36,816 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 401 transitions. [2021-08-29 03:04:36,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 401 transitions. [2021-08-29 03:04:36,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 03:04:36,818 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:36,818 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:36,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:37,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:37,026 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:37,027 INFO L82 PathProgramCache]: Analyzing trace with hash 473524852, now seen corresponding path program 1 times [2021-08-29 03:04:37,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:37,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985053215] [2021-08-29 03:04:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:37,028 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:37,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:37,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:37,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 03:04:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:37,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-29 03:04:37,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:37,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:37,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:37,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985053215] [2021-08-29 03:04:37,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985053215] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:37,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:37,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-08-29 03:04:37,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071342534] [2021-08-29 03:04:37,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:04:37,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:04:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:04:37,164 INFO L87 Difference]: Start difference. First operand 278 states and 401 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:37,609 INFO L93 Difference]: Finished difference Result 395 states and 553 transitions. [2021-08-29 03:04:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 03:04:37,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2021-08-29 03:04:37,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:37,611 INFO L225 Difference]: With dead ends: 395 [2021-08-29 03:04:37,611 INFO L226 Difference]: Without dead ends: 318 [2021-08-29 03:04:37,614 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.56ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 03:04:37,620 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 249 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 350.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.90ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 400.56ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:37,621 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 0 Invalid, 657 Unknown, 0 Unchecked, 1.90ms Time], IncrementalHoareTripleChecker [9 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 400.56ms Time] [2021-08-29 03:04:37,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-08-29 03:04:37,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 258. [2021-08-29 03:04:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 252 states have (on average 1.4484126984126984) internal successors, (365), 257 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:37,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 365 transitions. [2021-08-29 03:04:37,633 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 365 transitions. Word has length 22 [2021-08-29 03:04:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:37,633 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 365 transitions. [2021-08-29 03:04:37,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:37,634 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 365 transitions. [2021-08-29 03:04:37,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-29 03:04:37,637 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:37,637 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:37,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-08-29 03:04:37,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:37,843 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:37,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:37,844 INFO L82 PathProgramCache]: Analyzing trace with hash 177561437, now seen corresponding path program 1 times [2021-08-29 03:04:37,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:37,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732923404] [2021-08-29 03:04:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:37,845 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:37,847 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:37,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 03:04:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:37,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 03:04:37,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:37,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:37,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:37,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732923404] [2021-08-29 03:04:37,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732923404] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:37,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:37,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-08-29 03:04:37,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129555407] [2021-08-29 03:04:37,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 03:04:37,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:37,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 03:04:37,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:04:37,996 INFO L87 Difference]: Start difference. First operand 258 states and 365 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:38,535 INFO L93 Difference]: Finished difference Result 402 states and 541 transitions. [2021-08-29 03:04:38,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-29 03:04:38,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-29 03:04:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:38,536 INFO L225 Difference]: With dead ends: 402 [2021-08-29 03:04:38,537 INFO L226 Difference]: Without dead ends: 354 [2021-08-29 03:04:38,537 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 72.98ms TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2021-08-29 03:04:38,537 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 578 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 368.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.47ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 451.79ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:38,538 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 0 Invalid, 923 Unknown, 0 Unchecked, 3.47ms Time], IncrementalHoareTripleChecker [15 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 451.79ms Time] [2021-08-29 03:04:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-08-29 03:04:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 248. [2021-08-29 03:04:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 242 states have (on average 1.43801652892562) internal successors, (348), 247 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 348 transitions. [2021-08-29 03:04:38,546 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 348 transitions. Word has length 26 [2021-08-29 03:04:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:38,546 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 348 transitions. [2021-08-29 03:04:38,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:38,546 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 348 transitions. [2021-08-29 03:04:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-29 03:04:38,547 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:38,547 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:38,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:38,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:38,754 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:38,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:38,755 INFO L82 PathProgramCache]: Analyzing trace with hash 755236346, now seen corresponding path program 1 times [2021-08-29 03:04:38,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:38,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668486788] [2021-08-29 03:04:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:38,756 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:38,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:38,758 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:38,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 03:04:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:38,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:04:38,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:38,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:38,894 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:38,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668486788] [2021-08-29 03:04:38,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668486788] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:38,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:38,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-29 03:04:38,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531886148] [2021-08-29 03:04:38,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:04:38,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:38,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:04:38,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:04:38,896 INFO L87 Difference]: Start difference. First operand 248 states and 348 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:39,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:39,269 INFO L93 Difference]: Finished difference Result 456 states and 635 transitions. [2021-08-29 03:04:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 03:04:39,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 30 [2021-08-29 03:04:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:39,271 INFO L225 Difference]: With dead ends: 456 [2021-08-29 03:04:39,271 INFO L226 Difference]: Without dead ends: 381 [2021-08-29 03:04:39,271 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.87ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:04:39,271 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 210 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 286.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.74ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 349.95ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:39,272 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 0 Invalid, 639 Unknown, 0 Unchecked, 1.74ms Time], IncrementalHoareTripleChecker [6 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 349.95ms Time] [2021-08-29 03:04:39,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-08-29 03:04:39,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 310. [2021-08-29 03:04:39,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 304 states have (on average 1.3914473684210527) internal successors, (423), 309 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 423 transitions. [2021-08-29 03:04:39,280 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 423 transitions. Word has length 30 [2021-08-29 03:04:39,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:39,281 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 423 transitions. [2021-08-29 03:04:39,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:39,281 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 423 transitions. [2021-08-29 03:04:39,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-29 03:04:39,282 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:39,282 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:39,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:39,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:39,494 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:39,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:39,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1878814160, now seen corresponding path program 1 times [2021-08-29 03:04:39,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:39,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753204498] [2021-08-29 03:04:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:39,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:39,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:39,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-29 03:04:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:39,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-29 03:04:39,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:39,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:39,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:39,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753204498] [2021-08-29 03:04:39,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753204498] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:39,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:39,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 8 [2021-08-29 03:04:39,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9125874] [2021-08-29 03:04:39,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 03:04:39,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:39,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 03:04:39,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:04:39,667 INFO L87 Difference]: Start difference. First operand 310 states and 423 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:40,673 INFO L93 Difference]: Finished difference Result 912 states and 1264 transitions. [2021-08-29 03:04:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-29 03:04:40,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 30 [2021-08-29 03:04:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:40,676 INFO L225 Difference]: With dead ends: 912 [2021-08-29 03:04:40,676 INFO L226 Difference]: Without dead ends: 805 [2021-08-29 03:04:40,676 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 101.77ms TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-08-29 03:04:40,677 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 559 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 728.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.32ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 882.02ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:40,677 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 0 Invalid, 1623 Unknown, 0 Unchecked, 4.32ms Time], IncrementalHoareTripleChecker [17 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 882.02ms Time] [2021-08-29 03:04:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-08-29 03:04:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 446. [2021-08-29 03:04:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 441 states have (on average 1.3786848072562359) internal successors, (608), 445 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 608 transitions. [2021-08-29 03:04:40,694 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 608 transitions. Word has length 30 [2021-08-29 03:04:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:40,694 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 608 transitions. [2021-08-29 03:04:40,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 608 transitions. [2021-08-29 03:04:40,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-29 03:04:40,695 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:40,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:40,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:40,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:40,903 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:40,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:40,908 INFO L82 PathProgramCache]: Analyzing trace with hash 2002224973, now seen corresponding path program 1 times [2021-08-29 03:04:40,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:40,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564652817] [2021-08-29 03:04:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:40,909 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:40,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:40,911 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:40,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-29 03:04:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:40,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 03:04:40,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:41,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:41,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:41,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:41,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564652817] [2021-08-29 03:04:41,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564652817] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:41,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:41,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-08-29 03:04:41,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669242767] [2021-08-29 03:04:41,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-29 03:04:41,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-29 03:04:41,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-08-29 03:04:41,168 INFO L87 Difference]: Start difference. First operand 446 states and 608 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:42,325 INFO L93 Difference]: Finished difference Result 746 states and 1004 transitions. [2021-08-29 03:04:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-29 03:04:42,325 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 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 31 [2021-08-29 03:04:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:42,328 INFO L225 Difference]: With dead ends: 746 [2021-08-29 03:04:42,328 INFO L226 Difference]: Without dead ends: 705 [2021-08-29 03:04:42,328 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 292.27ms TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2021-08-29 03:04:42,329 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 897 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 707.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.80ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 892.02ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:42,329 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 0 Invalid, 1436 Unknown, 0 Unchecked, 4.80ms Time], IncrementalHoareTripleChecker [21 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 892.02ms Time] [2021-08-29 03:04:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2021-08-29 03:04:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 444. [2021-08-29 03:04:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 439 states have (on average 1.3804100227790432) internal successors, (606), 443 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 606 transitions. [2021-08-29 03:04:42,348 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 606 transitions. Word has length 31 [2021-08-29 03:04:42,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:42,348 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 606 transitions. [2021-08-29 03:04:42,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 606 transitions. [2021-08-29 03:04:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-29 03:04:42,349 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:42,349 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:42,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:42,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:42,556 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:42,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:42,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2059483275, now seen corresponding path program 1 times [2021-08-29 03:04:42,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:42,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013463552] [2021-08-29 03:04:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:42,556 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:42,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:42,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:42,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-08-29 03:04:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:42,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 03:04:42,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:42,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:42,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:42,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013463552] [2021-08-29 03:04:42,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013463552] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:42,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:42,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-29 03:04:42,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464306325] [2021-08-29 03:04:42,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:04:42,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:42,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:04:42,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:04:42,727 INFO L87 Difference]: Start difference. First operand 444 states and 606 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:43,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:43,082 INFO L93 Difference]: Finished difference Result 501 states and 681 transitions. [2021-08-29 03:04:43,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 03:04:43,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2021-08-29 03:04:43,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:43,084 INFO L225 Difference]: With dead ends: 501 [2021-08-29 03:04:43,084 INFO L226 Difference]: Without dead ends: 496 [2021-08-29 03:04:43,084 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.93ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-29 03:04:43,085 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 247.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 322.09ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:43,085 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 634 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [6 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 322.09ms Time] [2021-08-29 03:04:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-08-29 03:04:43,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 444. [2021-08-29 03:04:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 443 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 601 transitions. [2021-08-29 03:04:43,100 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 601 transitions. Word has length 31 [2021-08-29 03:04:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:43,101 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 601 transitions. [2021-08-29 03:04:43,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 601 transitions. [2021-08-29 03:04:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-29 03:04:43,102 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:43,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:43,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:43,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:43,309 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:43,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1226989779, now seen corresponding path program 1 times [2021-08-29 03:04:43,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:43,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059435723] [2021-08-29 03:04:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:43,311 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:43,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:43,312 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:43,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-08-29 03:04:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 03:04:43,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 03:04:43,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 03:04:43,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:43,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 03:04:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 03:04:43,442 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 03:04:43,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059435723] [2021-08-29 03:04:43,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059435723] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 03:04:43,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 03:04:43,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-29 03:04:43,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612530288] [2021-08-29 03:04:43,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 03:04:43,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 03:04:43,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 03:04:43,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 03:04:43,444 INFO L87 Difference]: Start difference. First operand 444 states and 601 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:43,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 03:04:43,805 INFO L93 Difference]: Finished difference Result 901 states and 1199 transitions. [2021-08-29 03:04:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 03:04:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 32 [2021-08-29 03:04:43,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 03:04:43,807 INFO L225 Difference]: With dead ends: 901 [2021-08-29 03:04:43,807 INFO L226 Difference]: Without dead ends: 842 [2021-08-29 03:04:43,808 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.63ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 03:04:43,808 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 175 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 261.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 321.23ms IncrementalHoareTripleChecker+Time [2021-08-29 03:04:43,808 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 0 Invalid, 648 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [5 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 321.23ms Time] [2021-08-29 03:04:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2021-08-29 03:04:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 476. [2021-08-29 03:04:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 471 states have (on average 1.3715498938428874) internal successors, (646), 475 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 646 transitions. [2021-08-29 03:04:43,835 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 646 transitions. Word has length 32 [2021-08-29 03:04:43,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 03:04:43,835 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 646 transitions. [2021-08-29 03:04:43,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 03:04:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 646 transitions. [2021-08-29 03:04:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-29 03:04:43,836 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 03:04:43,837 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 03:04:43,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-08-29 03:04:44,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:44,043 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-08-29 03:04:44,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 03:04:44,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1711564241, now seen corresponding path program 1 times [2021-08-29 03:04:44,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 03:04:44,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620542034] [2021-08-29 03:04:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 03:04:44,044 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 03:04:44,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 03:04:44,045 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 03:04:44,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-08-29 03:04:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:04:44,086 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 03:04:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 03:04:44,137 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 03:04:44,137 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 03:04:44,138 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-08-29 03:04:44,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-08-29 03:04:44,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-08-29 03:04:44,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-08-29 03:04:44,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-08-29 03:04:44,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-08-29 03:04:44,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-08-29 03:04:44,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 03:04:44,344 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 03:04:44,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:04:44 BoogieIcfgContainer [2021-08-29 03:04:44,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 03:04:44,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 03:04:44,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 03:04:44,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 03:04:44,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:04:34" (3/4) ... [2021-08-29 03:04:44,397 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 03:04:44,452 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 03:04:44,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 03:04:44,453 INFO L158 Benchmark]: Toolchain (without parser) took 10962.59ms. Allocated memory was 50.3MB in the beginning and 130.0MB in the end (delta: 79.7MB). Free memory was 27.6MB in the beginning and 78.4MB in the end (delta: -50.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,453 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.2MB in the beginning and 32.2MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 03:04:44,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.85ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 49.2MB in the end (delta: -21.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.83ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 46.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,454 INFO L158 Benchmark]: Boogie Preprocessor took 51.30ms. Allocated memory is still 69.2MB. Free memory was 46.8MB in the beginning and 44.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,454 INFO L158 Benchmark]: RCFGBuilder took 265.42ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 47.8MB in the end (delta: -2.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,454 INFO L158 Benchmark]: TraceAbstraction took 10207.05ms. Allocated memory was 69.2MB in the beginning and 130.0MB in the end (delta: 60.8MB). Free memory was 47.2MB in the beginning and 82.6MB in the end (delta: -35.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,454 INFO L158 Benchmark]: Witness Printer took 64.64ms. Allocated memory is still 130.0MB. Free memory was 82.6MB in the beginning and 78.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 03:04:44,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.2MB in the beginning and 32.2MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.85ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 49.2MB in the end (delta: -21.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.83ms. Allocated memory is still 69.2MB. Free memory was 49.0MB in the beginning and 46.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.30ms. Allocated memory is still 69.2MB. Free memory was 46.8MB in the beginning and 44.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.42ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 47.8MB in the end (delta: -2.9MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10207.05ms. Allocated memory was 69.2MB in the beginning and 130.0MB in the end (delta: 60.8MB). Free memory was 47.2MB in the beginning and 82.6MB in the end (delta: -35.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 64.64ms. Allocated memory is still 130.0MB. Free memory was 82.6MB in the beginning and 78.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L8] COND FALSE !(!(cond)) [L107] delta = ea - eb [L8] COND TRUE !(cond) [L9] reach_error() - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10120.29ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 16.87ms, AutomataDifference: 5664.86ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 9.07ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3939 SdHoareTripleChecker+Valid, 4789.78ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3939 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3928.62ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5495 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8055 IncrementalHoareTripleChecker+Invalid, 8172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 0 mSDtfsCounter, 8055 mSolverCounterSat, 32.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 571 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 608.08ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=476occurred in iteration=10, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 166.91ms AutomataMinimizationTime, 10 MinimizatonAttempts, 1618 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 89.77ms SsaConstructionTime, 210.27ms SatisfiabilityAnalysisTime, 1294.77ms InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 508 ConstructedInterpolants, 0 QuantifiedInterpolants, 989 SizeOfPredicates, 40 NumberOfNonLiveVariables, 764 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 proved your program to be incorrect! [2021-08-29 03:04:44,496 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...