./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/eca-rers2012/Problem02_label10.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 b406ff3fd0da0465581d2165eb1f16564f4bf2c96c00f3bdd76ed4230f7217fd --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:02:31,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:02:31,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:02:31,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:02:31,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:02:31,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:02:31,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:02:31,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:02:31,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:02:31,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:02:31,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:02:31,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:02:31,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:02:31,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:02:31,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:02:31,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:02:31,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:02:31,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:02:31,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:02:31,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:02:31,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:02:31,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:02:31,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:02:31,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:02:31,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:02:31,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:02:31,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:02:31,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:02:31,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:02:31,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:02:31,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:02:31,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:02:31,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:02:31,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:02:31,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:02:31,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:02:31,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:02:31,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:02:31,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:02:31,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:02:31,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:02:31,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:02:31,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:02:31,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:02:31,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:02:31,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:02:31,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:02:31,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:02:31,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:02:31,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:02:31,295 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:02:31,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:02:31,296 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:02:31,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:02:31,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:02:31,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:02:31,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:02:31,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:02:31,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:02:31,297 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:02:31,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:02:31,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:02:31,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:02:31,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:02:31,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:02:31,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:02:31,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:02:31,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:02:31,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:02:31,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:02:31,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:02:31,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:02:31,299 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:02:31,299 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:02:31,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:02:31,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:02:31,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b406ff3fd0da0465581d2165eb1f16564f4bf2c96c00f3bdd76ed4230f7217fd [2021-12-15 09:02:31,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:02:31,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:02:31,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:02:31,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:02:31,527 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:02:31,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label10.c [2021-12-15 09:02:31,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fed1158b/afc2ff3699db46f9a35e8dee57f46458/FLAGb24db5766 [2021-12-15 09:02:32,014 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:02:32,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label10.c [2021-12-15 09:02:32,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fed1158b/afc2ff3699db46f9a35e8dee57f46458/FLAGb24db5766 [2021-12-15 09:02:32,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fed1158b/afc2ff3699db46f9a35e8dee57f46458 [2021-12-15 09:02:32,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:02:32,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:02:32,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:02:32,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:02:32,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:02:32,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23488f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32, skipping insertion in model container [2021-12-15 09:02:32,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:02:32,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:02:32,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label10.c[20766,20779] [2021-12-15 09:02:32,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:02:32,357 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:02:32,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label10.c[20766,20779] [2021-12-15 09:02:32,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:02:32,421 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:02:32,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32 WrapperNode [2021-12-15 09:02:32,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:02:32,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:02:32,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:02:32,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:02:32,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,496 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-12-15 09:02:32,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:02:32,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:02:32,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:02:32,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:02:32,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:02:32,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:02:32,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:02:32,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:02:32,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (1/1) ... [2021-12-15 09:02:32,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:02:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:02:32,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 09:02:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:02:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:02:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:02:32,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:02:32,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 09:02:32,707 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:02:32,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:02:33,388 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:02:33,393 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:02:33,394 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:02:33,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:02:33 BoogieIcfgContainer [2021-12-15 09:02:33,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:02:33,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:02:33,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:02:33,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:02:33,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:02:32" (1/3) ... [2021-12-15 09:02:33,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288a5553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:02:33, skipping insertion in model container [2021-12-15 09:02:33,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:32" (2/3) ... [2021-12-15 09:02:33,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288a5553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:02:33, skipping insertion in model container [2021-12-15 09:02:33,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:02:33" (3/3) ... [2021-12-15 09:02:33,400 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label10.c [2021-12-15 09:02:33,403 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:02:33,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:02:33,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:02:33,436 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 09:02:33,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:02:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-15 09:02:33,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:33,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:33,459 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:33,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 163347651, now seen corresponding path program 1 times [2021-12-15 09:02:33,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:33,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228736742] [2021-12-15 09:02:33,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:33,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:34,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:34,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228736742] [2021-12-15 09:02:34,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228736742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:34,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:34,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:34,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358800340] [2021-12-15 09:02:34,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:34,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:34,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:34,124 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:34,760 INFO L93 Difference]: Finished difference Result 630 states and 1070 transitions. [2021-12-15 09:02:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:34,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 135 [2021-12-15 09:02:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:34,770 INFO L225 Difference]: With dead ends: 630 [2021-12-15 09:02:34,770 INFO L226 Difference]: Without dead ends: 318 [2021-12-15 09:02:34,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:34,775 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 95 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:34,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 119 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:02:34,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-15 09:02:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-12-15 09:02:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2021-12-15 09:02:34,806 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 135 [2021-12-15 09:02:34,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:34,807 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2021-12-15 09:02:34,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2021-12-15 09:02:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-15 09:02:34,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:34,811 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:34,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:02:34,811 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1861367544, now seen corresponding path program 1 times [2021-12-15 09:02:34,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:34,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715104748] [2021-12-15 09:02:34,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:34,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:34,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:34,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715104748] [2021-12-15 09:02:34,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715104748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:34,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:34,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:34,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233190139] [2021-12-15 09:02:34,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:34,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 09:02:34,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:34,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 09:02:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:02:34,921 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:35,432 INFO L93 Difference]: Finished difference Result 999 states and 1508 transitions. [2021-12-15 09:02:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 09:02:35,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 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 139 [2021-12-15 09:02:35,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:35,435 INFO L225 Difference]: With dead ends: 999 [2021-12-15 09:02:35,435 INFO L226 Difference]: Without dead ends: 600 [2021-12-15 09:02:35,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 09:02:35,437 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 172 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:35,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 114 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:02:35,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-12-15 09:02:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-12-15 09:02:35,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.357262103505843) internal successors, (813), 599 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 813 transitions. [2021-12-15 09:02:35,463 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 813 transitions. Word has length 139 [2021-12-15 09:02:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:35,464 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 813 transitions. [2021-12-15 09:02:35,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 813 transitions. [2021-12-15 09:02:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-15 09:02:35,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:35,468 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:35,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:02:35,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:35,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:35,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1249837150, now seen corresponding path program 1 times [2021-12-15 09:02:35,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:35,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314607184] [2021-12-15 09:02:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:35,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:35,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:35,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314607184] [2021-12-15 09:02:35,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314607184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:35,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:35,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:35,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533730454] [2021-12-15 09:02:35,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:35,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:35,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:35,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:35,519 INFO L87 Difference]: Start difference. First operand 600 states and 813 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:35,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:35,811 INFO L93 Difference]: Finished difference Result 1781 states and 2418 transitions. [2021-12-15 09:02:35,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:35,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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 153 [2021-12-15 09:02:35,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:35,815 INFO L225 Difference]: With dead ends: 1781 [2021-12-15 09:02:35,815 INFO L226 Difference]: Without dead ends: 1183 [2021-12-15 09:02:35,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:35,817 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 158 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:35,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 99 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:35,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-12-15 09:02:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1173. [2021-12-15 09:02:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.3114334470989761) internal successors, (1537), 1172 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1537 transitions. [2021-12-15 09:02:35,834 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1537 transitions. Word has length 153 [2021-12-15 09:02:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:35,835 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1537 transitions. [2021-12-15 09:02:35,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1537 transitions. [2021-12-15 09:02:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-15 09:02:35,837 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:35,837 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:35,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 09:02:35,838 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:35,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash 534339697, now seen corresponding path program 1 times [2021-12-15 09:02:35,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:35,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323014648] [2021-12-15 09:02:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:35,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:35,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:35,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323014648] [2021-12-15 09:02:35,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323014648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:35,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:35,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:35,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970473632] [2021-12-15 09:02:35,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:35,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:35,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:35,892 INFO L87 Difference]: Start difference. First operand 1173 states and 1537 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:36,218 INFO L93 Difference]: Finished difference Result 3329 states and 4387 transitions. [2021-12-15 09:02:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:36,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 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 159 [2021-12-15 09:02:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:36,224 INFO L225 Difference]: With dead ends: 3329 [2021-12-15 09:02:36,224 INFO L226 Difference]: Without dead ends: 2158 [2021-12-15 09:02:36,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:36,226 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 125 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:36,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 128 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-12-15 09:02:36,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-12-15 09:02:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.200557103064067) internal successors, (2586), 2154 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2586 transitions. [2021-12-15 09:02:36,251 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2586 transitions. Word has length 159 [2021-12-15 09:02:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:36,252 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2586 transitions. [2021-12-15 09:02:36,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2586 transitions. [2021-12-15 09:02:36,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-12-15 09:02:36,255 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:36,256 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:36,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:02:36,256 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:36,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:36,257 INFO L85 PathProgramCache]: Analyzing trace with hash -811005375, now seen corresponding path program 1 times [2021-12-15 09:02:36,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:36,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393617633] [2021-12-15 09:02:36,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:36,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:36,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:36,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393617633] [2021-12-15 09:02:36,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393617633] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:02:36,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731452329] [2021-12-15 09:02:36,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:36,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:02:36,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:02:36,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:02:36,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 09:02:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:36,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:02:36,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:02:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-15 09:02:36,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:02:36,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731452329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:36,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:02:36,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 09:02:36,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772101942] [2021-12-15 09:02:36,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:36,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:36,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:36,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:36,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:02:36,710 INFO L87 Difference]: Start difference. First operand 2155 states and 2586 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:37,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:37,007 INFO L93 Difference]: Finished difference Result 5432 states and 6644 transitions. [2021-12-15 09:02:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:37,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 162 [2021-12-15 09:02:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:37,015 INFO L225 Difference]: With dead ends: 5432 [2021-12-15 09:02:37,016 INFO L226 Difference]: Without dead ends: 3279 [2021-12-15 09:02:37,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:02:37,018 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 29 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:37,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 246 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:37,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2021-12-15 09:02:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3279. [2021-12-15 09:02:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3278 states have (on average 1.1714460036607688) internal successors, (3840), 3278 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 3840 transitions. [2021-12-15 09:02:37,051 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 3840 transitions. Word has length 162 [2021-12-15 09:02:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:37,051 INFO L470 AbstractCegarLoop]: Abstraction has 3279 states and 3840 transitions. [2021-12-15 09:02:37,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 3840 transitions. [2021-12-15 09:02:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-15 09:02:37,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:37,055 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:37,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 09:02:37,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:02:37,272 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:37,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash -599334906, now seen corresponding path program 1 times [2021-12-15 09:02:37,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:37,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439818745] [2021-12-15 09:02:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:37,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:37,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:37,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439818745] [2021-12-15 09:02:37,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439818745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:37,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:37,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:37,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836430739] [2021-12-15 09:02:37,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:37,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:37,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:37,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:37,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:37,306 INFO L87 Difference]: Start difference. First operand 3279 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:37,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:37,626 INFO L93 Difference]: Finished difference Result 7542 states and 8783 transitions. [2021-12-15 09:02:37,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:37,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 164 [2021-12-15 09:02:37,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:37,635 INFO L225 Difference]: With dead ends: 7542 [2021-12-15 09:02:37,636 INFO L226 Difference]: Without dead ends: 3705 [2021-12-15 09:02:37,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:37,640 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 157 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:37,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 60 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2021-12-15 09:02:37,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3699. [2021-12-15 09:02:37,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 3698 states have (on average 1.100054083288264) internal successors, (4068), 3698 states have internal predecessors, (4068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 4068 transitions. [2021-12-15 09:02:37,685 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 4068 transitions. Word has length 164 [2021-12-15 09:02:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:37,686 INFO L470 AbstractCegarLoop]: Abstraction has 3699 states and 4068 transitions. [2021-12-15 09:02:37,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 4068 transitions. [2021-12-15 09:02:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-15 09:02:37,690 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:37,690 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:37,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 09:02:37,690 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash -716130352, now seen corresponding path program 1 times [2021-12-15 09:02:37,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:37,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774821040] [2021-12-15 09:02:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:37,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:37,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:37,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774821040] [2021-12-15 09:02:37,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774821040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:37,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:37,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:37,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355803914] [2021-12-15 09:02:37,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:37,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:37,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:37,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:37,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:37,723 INFO L87 Difference]: Start difference. First operand 3699 states and 4068 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:38,029 INFO L93 Difference]: Finished difference Result 7258 states and 7985 transitions. [2021-12-15 09:02:38,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:38,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 168 [2021-12-15 09:02:38,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:38,037 INFO L225 Difference]: With dead ends: 7258 [2021-12-15 09:02:38,037 INFO L226 Difference]: Without dead ends: 3281 [2021-12-15 09:02:38,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:38,042 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 141 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:38,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 252 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:38,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2021-12-15 09:02:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3130. [2021-12-15 09:02:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 1.081495685522531) internal successors, (3384), 3129 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 3384 transitions. [2021-12-15 09:02:38,085 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 3384 transitions. Word has length 168 [2021-12-15 09:02:38,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:38,085 INFO L470 AbstractCegarLoop]: Abstraction has 3130 states and 3384 transitions. [2021-12-15 09:02:38,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 3384 transitions. [2021-12-15 09:02:38,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-15 09:02:38,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:38,089 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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] [2021-12-15 09:02:38,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 09:02:38,090 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:38,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:38,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2001767241, now seen corresponding path program 1 times [2021-12-15 09:02:38,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:38,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740638103] [2021-12-15 09:02:38,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:38,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-15 09:02:38,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:38,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740638103] [2021-12-15 09:02:38,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740638103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:38,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:38,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:38,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236732085] [2021-12-15 09:02:38,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:38,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:38,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:38,134 INFO L87 Difference]: Start difference. First operand 3130 states and 3384 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:38,410 INFO L93 Difference]: Finished difference Result 5961 states and 6452 transitions. [2021-12-15 09:02:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:38,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 217 [2021-12-15 09:02:38,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:38,415 INFO L225 Difference]: With dead ends: 5961 [2021-12-15 09:02:38,415 INFO L226 Difference]: Without dead ends: 2130 [2021-12-15 09:02:38,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:38,419 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 113 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:38,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 230 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:38,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2021-12-15 09:02:38,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1990. [2021-12-15 09:02:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1989 states have (on average 1.0598290598290598) internal successors, (2108), 1989 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2108 transitions. [2021-12-15 09:02:38,441 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2108 transitions. Word has length 217 [2021-12-15 09:02:38,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:38,442 INFO L470 AbstractCegarLoop]: Abstraction has 1990 states and 2108 transitions. [2021-12-15 09:02:38,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2108 transitions. [2021-12-15 09:02:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-15 09:02:38,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:38,445 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:38,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 09:02:38,446 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1096589974, now seen corresponding path program 1 times [2021-12-15 09:02:38,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:38,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891620547] [2021-12-15 09:02:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:38,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-12-15 09:02:38,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891620547] [2021-12-15 09:02:38,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891620547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:38,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:38,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:38,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579754649] [2021-12-15 09:02:38,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:38,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:38,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:38,492 INFO L87 Difference]: Start difference. First operand 1990 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:38,755 INFO L93 Difference]: Finished difference Result 4259 states and 4522 transitions. [2021-12-15 09:02:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 223 [2021-12-15 09:02:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:38,760 INFO L225 Difference]: With dead ends: 4259 [2021-12-15 09:02:38,761 INFO L226 Difference]: Without dead ends: 2271 [2021-12-15 09:02:38,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:38,763 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 131 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:38,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 199 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2021-12-15 09:02:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2130. [2021-12-15 09:02:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.054485674025364) internal successors, (2245), 2129 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2245 transitions. [2021-12-15 09:02:38,786 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2245 transitions. Word has length 223 [2021-12-15 09:02:38,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:38,786 INFO L470 AbstractCegarLoop]: Abstraction has 2130 states and 2245 transitions. [2021-12-15 09:02:38,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2245 transitions. [2021-12-15 09:02:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-15 09:02:38,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:38,790 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:38,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 09:02:38,790 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:38,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:38,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1938278227, now seen corresponding path program 1 times [2021-12-15 09:02:38,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:38,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411007338] [2021-12-15 09:02:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:38,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-15 09:02:38,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:38,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411007338] [2021-12-15 09:02:38,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411007338] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:38,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:38,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:38,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488165998] [2021-12-15 09:02:38,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:38,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:38,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:38,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:38,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:38,835 INFO L87 Difference]: Start difference. First operand 2130 states and 2245 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:39,082 INFO L93 Difference]: Finished difference Result 4537 states and 4777 transitions. [2021-12-15 09:02:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:39,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 246 [2021-12-15 09:02:39,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:39,087 INFO L225 Difference]: With dead ends: 4537 [2021-12-15 09:02:39,087 INFO L226 Difference]: Without dead ends: 2268 [2021-12-15 09:02:39,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:39,090 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 155 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:39,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 65 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:39,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2021-12-15 09:02:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 1988. [2021-12-15 09:02:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1987 states have (on average 1.0473074987418218) internal successors, (2081), 1987 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2081 transitions. [2021-12-15 09:02:39,124 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2081 transitions. Word has length 246 [2021-12-15 09:02:39,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:39,125 INFO L470 AbstractCegarLoop]: Abstraction has 1988 states and 2081 transitions. [2021-12-15 09:02:39,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2081 transitions. [2021-12-15 09:02:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-15 09:02:39,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:39,129 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1] [2021-12-15 09:02:39,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 09:02:39,129 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash -497520636, now seen corresponding path program 1 times [2021-12-15 09:02:39,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:39,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485591315] [2021-12-15 09:02:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:39,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:39,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:39,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485591315] [2021-12-15 09:02:39,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485591315] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:02:39,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243818078] [2021-12-15 09:02:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:39,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:02:39,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:02:39,238 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 09:02:39,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 09:02:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:39,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:02:39,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:02:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-15 09:02:39,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:02:39,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243818078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:39,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:02:39,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-15 09:02:39,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158271808] [2021-12-15 09:02:39,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:39,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:39,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:39,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:39,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:02:39,696 INFO L87 Difference]: Start difference. First operand 1988 states and 2081 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:39,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:39,962 INFO L93 Difference]: Finished difference Result 4391 states and 4601 transitions. [2021-12-15 09:02:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:39,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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 265 [2021-12-15 09:02:39,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:39,963 INFO L225 Difference]: With dead ends: 4391 [2021-12-15 09:02:39,963 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:02:39,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-15 09:02:39,969 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 46 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:39,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 33 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:39,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:02:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:02:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:02:39,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 265 [2021-12-15 09:02:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:39,970 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:02:39,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:02:39,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:02:39,972 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:02:39,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 09:02:40,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-15 09:02:40,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-12-15 09:02:40,848 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-12-15 09:02:40,849 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-12-15 09:02:40,850 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,851 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-12-15 09:02:40,852 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-12-15 09:02:40,853 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-15 09:02:40,854 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-12-15 09:02:40,855 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,855 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,856 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,856 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-12-15 09:02:40,856 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-12-15 09:02:40,856 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,857 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-12-15 09:02:40,858 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-12-15 09:02:40,859 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-12-15 09:02:40,860 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-12-15 09:02:40,860 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-12-15 09:02:40,860 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-12-15 09:02:40,860 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,860 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 587) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,861 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,862 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-12-15 09:02:40,863 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse5 (<= 8 ~a17~0)) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a21~0 1)) (.cse10 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse8 (<= 9 ~a28~0)) (.cse9 (<= ~a28~0 7)) (.cse3 (= ~a11~0 1)) (.cse2 (= ~a19~0 1)) (.cse7 (= ~a25~0 1)) (.cse6 (= 0 ~a11~0)) (.cse11 (<= 10 ~a28~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse7) (and .cse3 .cse4 .cse8) (and .cse5 .cse9 .cse7 .cse6) (and .cse3 .cse10 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse7) (and .cse0 .cse1 .cse2 .cse7 .cse11) (and .cse5 .cse7 .cse6 .cse11) (and .cse5 .cse2 .cse7 .cse6) (and .cse5 .cse9 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse10 .cse11) (and .cse10 .cse6 .cse4 .cse8) (and .cse2 .cse9 .cse3 .cse7) (and .cse2 .cse7 .cse6 .cse11))) [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-12-15 09:02:40,864 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse5 (<= 8 ~a17~0)) (.cse0 (= ~a17~0 8)) (.cse1 (= ~a21~0 1)) (.cse10 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse8 (<= 9 ~a28~0)) (.cse9 (<= ~a28~0 7)) (.cse3 (= ~a11~0 1)) (.cse2 (= ~a19~0 1)) (.cse7 (= ~a25~0 1)) (.cse6 (= 0 ~a11~0)) (.cse11 (<= 10 ~a28~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse7) (and .cse3 .cse4 .cse8) (and .cse5 .cse9 .cse7 .cse6) (and .cse3 .cse10 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse7) (and .cse0 .cse1 .cse2 .cse7 .cse11) (and .cse5 .cse7 .cse6 .cse11) (and .cse5 .cse2 .cse7 .cse6) (and .cse5 .cse9 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse10 .cse11) (and .cse10 .cse6 .cse4 .cse8) (and .cse2 .cse9 .cse3 .cse7) (and .cse2 .cse7 .cse6 .cse11))) [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-12-15 09:02:40,865 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-12-15 09:02:40,866 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-12-15 09:02:40,867 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-12-15 09:02:40,870 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:40,871 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:02:40,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:02:40 BoogieIcfgContainer [2021-12-15 09:02:40,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:02:40,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:02:40,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:02:40,897 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:02:40,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:02:33" (3/4) ... [2021-12-15 09:02:40,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:02:40,918 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:02:40,919 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:02:40,920 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:02:40,920 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:02:40,981 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:02:40,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:02:40,982 INFO L158 Benchmark]: Toolchain (without parser) took 8930.83ms. Allocated memory was 90.2MB in the beginning and 249.6MB in the end (delta: 159.4MB). Free memory was 59.3MB in the beginning and 191.4MB in the end (delta: -132.1MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,982 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 34.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:02:40,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.28ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 52.8MB in the end (delta: 6.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.41ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 47.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,982 INFO L158 Benchmark]: Boogie Preprocessor took 69.25ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 43.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,982 INFO L158 Benchmark]: RCFGBuilder took 828.11ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 43.2MB in the beginning and 42.8MB in the end (delta: 375.8kB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,983 INFO L158 Benchmark]: TraceAbstraction took 7500.74ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 42.1MB in the beginning and 206.1MB in the end (delta: -164.0MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,983 INFO L158 Benchmark]: Witness Printer took 83.95ms. Allocated memory is still 249.6MB. Free memory was 206.1MB in the beginning and 191.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 09:02:40,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 34.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.28ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 52.8MB in the end (delta: 6.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.41ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 47.4MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.25ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 43.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 828.11ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 43.2MB in the beginning and 42.8MB in the end (delta: 375.8kB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7500.74ms. Allocated memory was 109.1MB in the beginning and 249.6MB in the end (delta: 140.5MB). Free memory was 42.1MB in the beginning and 206.1MB in the end (delta: -164.0MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. * Witness Printer took 83.95ms. Allocated memory is still 249.6MB. Free memory was 206.1MB in the beginning and 191.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 587]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1322 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1322 mSDsluCounter, 1545 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 711 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4216 IncrementalHoareTripleChecker+Invalid, 4927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 711 mSolverCounterUnsat, 1344 mSDtfsCounter, 4216 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 458 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3699occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 731 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 65 NumberOfFragments, 411 HoareAnnotationTreeSize, 3 FomulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 890 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2458 NumberOfCodeBlocks, 2458 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2445 ConstructedInterpolants, 0 QuantifiedInterpolants, 9720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 716 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 962/1079 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((((((((a17 == 8 && a21 == 1) && a19 == 1) && a11 == 1) && a25 <= 0) || ((8 <= a17 && 0 == a11) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a11 == 1) && a25 == 1)) || ((a11 == 1 && a25 <= 0) && 9 <= a28)) || (((8 <= a17 && a28 <= 7) && a25 == 1) && 0 == a11)) || (((a11 == 1 && a28 <= 10) && a25 == 1) && 9 <= a28)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && a25 == 1)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && 10 <= a28)) || (((8 <= a17 && a25 == 1) && 0 == a11) && 10 <= a28)) || (((8 <= a17 && a19 == 1) && a25 == 1) && 0 == a11)) || (((8 <= a17 && a28 <= 7) && a11 == 1) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && 10 <= a28)) || (((a28 <= 10 && 0 == a11) && a25 <= 0) && 9 <= a28)) || (((a19 == 1 && a28 <= 7) && a11 == 1) && a25 == 1)) || (((a19 == 1 && a25 == 1) && 0 == a11) && 10 <= a28) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((((((a17 == 8 && a21 == 1) && a19 == 1) && a11 == 1) && a25 <= 0) || ((8 <= a17 && 0 == a11) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a11 == 1) && a25 == 1)) || ((a11 == 1 && a25 <= 0) && 9 <= a28)) || (((8 <= a17 && a28 <= 7) && a25 == 1) && 0 == a11)) || (((a11 == 1 && a28 <= 10) && a25 == 1) && 9 <= a28)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 7) && a25 == 1)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a25 == 1) && 10 <= a28)) || (((8 <= a17 && a25 == 1) && 0 == a11) && 10 <= a28)) || (((8 <= a17 && a19 == 1) && a25 == 1) && 0 == a11)) || (((8 <= a17 && a28 <= 7) && a11 == 1) && a25 <= 0)) || ((((a17 == 8 && a21 == 1) && a19 == 1) && a28 <= 10) && 10 <= a28)) || (((a28 <= 10 && 0 == a11) && a25 <= 0) && 9 <= a28)) || (((a19 == 1 && a28 <= 7) && a11 == 1) && a25 == 1)) || (((a19 == 1 && a25 == 1) && 0 == a11) && 10 <= a28) RESULT: Ultimate proved your program to be correct! [2021-12-15 09:02:41,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE