./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label42.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 7a5efd35608b2274a82684e59fb25c4995783dd9fff74f1e981ddde01ab75357 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:44:58,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:44:58,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:44:58,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:44:58,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:44:58,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:44:58,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:44:58,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:44:58,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:44:58,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:44:58,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:44:58,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:44:58,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:44:58,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:44:58,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:44:58,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:44:58,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:44:58,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:44:58,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:44:58,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:44:58,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:44:58,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:44:58,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:44:58,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:44:58,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:44:58,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:44:58,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:44:58,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:44:58,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:44:58,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:44:58,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:44:58,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:44:58,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:44:58,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:44:58,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:44:58,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:44:58,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:44:58,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:44:58,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:44:58,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:44:58,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:44:58,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:44:58,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:44:58,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:44:58,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:44:58,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:44:58,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:44:58,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:44:58,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:44:58,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:44:58,228 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:44:58,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:44:58,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:44:58,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:44:58,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:44:58,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:44:58,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:44:58,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:44:58,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:44:58,229 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:44:58,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:44:58,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:44:58,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:44:58,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:44:58,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:44:58,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:44:58,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:44:58,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:44:58,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:44:58,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:44:58,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5efd35608b2274a82684e59fb25c4995783dd9fff74f1e981ddde01ab75357 [2021-12-17 04:44:58,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:44:58,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:44:58,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:44:58,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:44:58,448 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:44:58,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label42.c [2021-12-17 04:44:58,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e77d0b8a/ae70ac1c29b944dea6bf13f054c308bd/FLAG93eb79587 [2021-12-17 04:44:59,000 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:44:59,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label42.c [2021-12-17 04:44:59,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e77d0b8a/ae70ac1c29b944dea6bf13f054c308bd/FLAG93eb79587 [2021-12-17 04:44:59,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e77d0b8a/ae70ac1c29b944dea6bf13f054c308bd [2021-12-17 04:44:59,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:44:59,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:44:59,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:44:59,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:44:59,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:44:59,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706bdd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59, skipping insertion in model container [2021-12-17 04:44:59,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:44:59,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:44:59,262 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/Problem14_label42.c[4428,4441] [2021-12-17 04:44:59,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:44:59,392 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:44:59,411 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/Problem14_label42.c[4428,4441] [2021-12-17 04:44:59,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:44:59,468 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:44:59,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59 WrapperNode [2021-12-17 04:44:59,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:44:59,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:44:59,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:44:59,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:44:59,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,541 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-17 04:44:59,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:44:59,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:44:59,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:44:59,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:44:59,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:44:59,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:44:59,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:44:59,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:44:59,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (1/1) ... [2021-12-17 04:44:59,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:44:59,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:59,649 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) [2021-12-17 04:44:59,661 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 [2021-12-17 04:44:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:44:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:44:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:44:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:44:59,770 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:44:59,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:45:00,586 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:45:00,594 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:45:00,595 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:45:00,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:45:00 BoogieIcfgContainer [2021-12-17 04:45:00,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:45:00,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:45:00,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:45:00,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:45:00,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:44:59" (1/3) ... [2021-12-17 04:45:00,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e81857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:45:00, skipping insertion in model container [2021-12-17 04:45:00,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:59" (2/3) ... [2021-12-17 04:45:00,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e81857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:45:00, skipping insertion in model container [2021-12-17 04:45:00,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:45:00" (3/3) ... [2021-12-17 04:45:00,602 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label42.c [2021-12-17 04:45:00,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:45:00,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:45:00,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:45:00,662 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 [2021-12-17 04:45:00,663 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:45:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2021-12-17 04:45:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-17 04:45:00,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:00,693 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] [2021-12-17 04:45:00,694 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1824112922, now seen corresponding path program 1 times [2021-12-17 04:45:00,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:00,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610417879] [2021-12-17 04:45:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:00,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:45:00,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:00,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610417879] [2021-12-17 04:45:00,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610417879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:00,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:00,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:45:00,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953296359] [2021-12-17 04:45:00,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:00,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:45:00,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:00,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:45:00,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:45:00,959 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-12-17 04:45:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:02,127 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2021-12-17 04:45:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:45:02,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-12-17 04:45:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:02,138 INFO L225 Difference]: With dead ends: 852 [2021-12-17 04:45:02,138 INFO L226 Difference]: Without dead ends: 538 [2021-12-17 04:45:02,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:45:02,143 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 548 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:02,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 44 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:45:02,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-12-17 04:45:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-12-17 04:45:02,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 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) [2021-12-17 04:45:02,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-12-17 04:45:02,186 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 42 [2021-12-17 04:45:02,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:02,187 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-12-17 04:45:02,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-12-17 04:45:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-12-17 04:45:02,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-17 04:45:02,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:02,197 INFO L514 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:02,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 04:45:02,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:02,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1937473168, now seen corresponding path program 1 times [2021-12-17 04:45:02,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:02,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692393660] [2021-12-17 04:45:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:02,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-17 04:45:02,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:02,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692393660] [2021-12-17 04:45:02,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692393660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:02,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:02,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:45:02,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265072174] [2021-12-17 04:45:02,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:02,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:02,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:02,321 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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) [2021-12-17 04:45:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:02,842 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2021-12-17 04:45:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:02,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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 190 [2021-12-17 04:45:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:02,853 INFO L225 Difference]: With dead ends: 1074 [2021-12-17 04:45:02,853 INFO L226 Difference]: Without dead ends: 716 [2021-12-17 04:45:02,854 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 [2021-12-17 04:45:02,855 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:02,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:45:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-17 04:45:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-12-17 04:45:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 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) [2021-12-17 04:45:02,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-12-17 04:45:02,870 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 190 [2021-12-17 04:45:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:02,870 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-12-17 04:45:02,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 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) [2021-12-17 04:45:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-12-17 04:45:02,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-17 04:45:02,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:02,885 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-12-17 04:45:02,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 04:45:02,887 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:02,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash -215176253, now seen corresponding path program 1 times [2021-12-17 04:45:02,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:02,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944859509] [2021-12-17 04:45:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:02,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 04:45:03,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:03,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944859509] [2021-12-17 04:45:03,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944859509] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:03,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:03,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:45:03,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466964750] [2021-12-17 04:45:03,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:03,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:45:03,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:03,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:45:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:45:03,002 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) 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) [2021-12-17 04:45:03,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:03,550 INFO L93 Difference]: Finished difference Result 1639 states and 2269 transitions. [2021-12-17 04:45:03,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:45:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) 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 213 [2021-12-17 04:45:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:03,553 INFO L225 Difference]: With dead ends: 1639 [2021-12-17 04:45:03,553 INFO L226 Difference]: Without dead ends: 1074 [2021-12-17 04:45:03,554 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 [2021-12-17 04:45:03,555 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 114 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:03,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 115 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:45:03,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-12-17 04:45:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1072. [2021-12-17 04:45:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1475256769374416) internal successors, (1229), 1071 states have internal predecessors, (1229), 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) [2021-12-17 04:45:03,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1229 transitions. [2021-12-17 04:45:03,569 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1229 transitions. Word has length 213 [2021-12-17 04:45:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:03,570 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1229 transitions. [2021-12-17 04:45:03,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) 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) [2021-12-17 04:45:03,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1229 transitions. [2021-12-17 04:45:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-12-17 04:45:03,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:03,572 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:03,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 04:45:03,573 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -754785656, now seen corresponding path program 1 times [2021-12-17 04:45:03,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:03,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3379269] [2021-12-17 04:45:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:03,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-17 04:45:03,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:03,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3379269] [2021-12-17 04:45:03,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3379269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:03,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:03,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:45:03,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897403558] [2021-12-17 04:45:03,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:03,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:03,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:03,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:03,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:45:03,742 INFO L87 Difference]: Start difference. First operand 1072 states and 1229 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2021-12-17 04:45:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:04,160 INFO L93 Difference]: Finished difference Result 2498 states and 2961 transitions. [2021-12-17 04:45:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:04,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 344 [2021-12-17 04:45:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:04,165 INFO L225 Difference]: With dead ends: 2498 [2021-12-17 04:45:04,166 INFO L226 Difference]: Without dead ends: 1606 [2021-12-17 04:45:04,167 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 [2021-12-17 04:45:04,168 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 89 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:04,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:45:04,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-12-17 04:45:04,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2021-12-17 04:45:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.138051857042747) internal successors, (1624), 1427 states have internal predecessors, (1624), 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) [2021-12-17 04:45:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1624 transitions. [2021-12-17 04:45:04,186 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1624 transitions. Word has length 344 [2021-12-17 04:45:04,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:04,187 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1624 transitions. [2021-12-17 04:45:04,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2021-12-17 04:45:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1624 transitions. [2021-12-17 04:45:04,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-12-17 04:45:04,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:04,190 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:04,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 04:45:04,191 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1716237892, now seen corresponding path program 1 times [2021-12-17 04:45:04,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:04,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677716956] [2021-12-17 04:45:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:04,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 342 proven. 23 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-17 04:45:04,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:04,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677716956] [2021-12-17 04:45:04,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677716956] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:04,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824874162] [2021-12-17 04:45:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:04,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:04,307 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) [2021-12-17 04:45:04,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 04:45:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:04,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:45:04,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-12-17 04:45:04,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:04,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824874162] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:04,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:04,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:45:04,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78020930] [2021-12-17 04:45:04,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:04,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:04,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:04,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:04,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:04,921 INFO L87 Difference]: Start difference. First operand 1428 states and 1624 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-12-17 04:45:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:05,346 INFO L93 Difference]: Finished difference Result 3210 states and 3751 transitions. [2021-12-17 04:45:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:05,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 368 [2021-12-17 04:45:05,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:05,352 INFO L225 Difference]: With dead ends: 3210 [2021-12-17 04:45:05,354 INFO L226 Difference]: Without dead ends: 1962 [2021-12-17 04:45:05,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:05,362 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 139 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:05,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:45:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-17 04:45:05,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-12-17 04:45:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 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) [2021-12-17 04:45:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2021-12-17 04:45:05,385 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 368 [2021-12-17 04:45:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:05,389 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2021-12-17 04:45:05,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-12-17 04:45:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2021-12-17 04:45:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2021-12-17 04:45:05,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:05,394 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-12-17 04:45:05,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:05,607 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 [2021-12-17 04:45:05,608 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2146771410, now seen corresponding path program 1 times [2021-12-17 04:45:05,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:05,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100971793] [2021-12-17 04:45:05,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:05,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:05,735 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 537 proven. 23 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2021-12-17 04:45:05,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:05,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100971793] [2021-12-17 04:45:05,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100971793] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:05,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744559759] [2021-12-17 04:45:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:05,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:05,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:05,738 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) [2021-12-17 04:45:05,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 04:45:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:05,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:45:05,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:06,360 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2021-12-17 04:45:06,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:06,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744559759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:06,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:06,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:45:06,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303258266] [2021-12-17 04:45:06,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:06,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:06,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:06,363 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-12-17 04:45:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:06,754 INFO L93 Difference]: Finished difference Result 4100 states and 4728 transitions. [2021-12-17 04:45:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:06,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 467 [2021-12-17 04:45:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:06,761 INFO L225 Difference]: With dead ends: 4100 [2021-12-17 04:45:06,761 INFO L226 Difference]: Without dead ends: 2496 [2021-12-17 04:45:06,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:06,763 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 139 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:06,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 245 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:45:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-17 04:45:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2021-12-17 04:45:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.127751402675874) internal successors, (2613), 2317 states have internal predecessors, (2613), 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) [2021-12-17 04:45:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2613 transitions. [2021-12-17 04:45:06,790 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2613 transitions. Word has length 467 [2021-12-17 04:45:06,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:06,791 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2613 transitions. [2021-12-17 04:45:06,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-12-17 04:45:06,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2613 transitions. [2021-12-17 04:45:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-12-17 04:45:06,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:06,797 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-17 04:45:06,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:07,011 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,SelfDestructingSolverStorable5 [2021-12-17 04:45:07,011 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:07,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash 336607941, now seen corresponding path program 1 times [2021-12-17 04:45:07,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:07,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114453835] [2021-12-17 04:45:07,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:07,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 575 proven. 23 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-12-17 04:45:07,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:07,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114453835] [2021-12-17 04:45:07,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114453835] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:07,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978902406] [2021-12-17 04:45:07,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:07,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:07,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:07,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:45:07,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 04:45:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:07,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:45:07,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2021-12-17 04:45:07,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:07,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978902406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:07,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:07,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:45:07,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758560910] [2021-12-17 04:45:07,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:07,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:07,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:07,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:07,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:07,707 INFO L87 Difference]: Start difference. First operand 2318 states and 2613 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-12-17 04:45:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:08,114 INFO L93 Difference]: Finished difference Result 4990 states and 5729 transitions. [2021-12-17 04:45:08,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:08,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 486 [2021-12-17 04:45:08,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:08,122 INFO L225 Difference]: With dead ends: 4990 [2021-12-17 04:45:08,122 INFO L226 Difference]: Without dead ends: 2852 [2021-12-17 04:45:08,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:08,125 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 140 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:08,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 77 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:45:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2021-12-17 04:45:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2674. [2021-12-17 04:45:08,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1459034792368126) internal successors, (3063), 2673 states have internal predecessors, (3063), 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) [2021-12-17 04:45:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3063 transitions. [2021-12-17 04:45:08,157 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3063 transitions. Word has length 486 [2021-12-17 04:45:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:08,157 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 3063 transitions. [2021-12-17 04:45:08,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-12-17 04:45:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3063 transitions. [2021-12-17 04:45:08,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2021-12-17 04:45:08,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:08,163 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-12-17 04:45:08,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:08,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:08,380 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 862109110, now seen corresponding path program 1 times [2021-12-17 04:45:08,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:08,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083894147] [2021-12-17 04:45:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:08,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 586 proven. 23 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-17 04:45:08,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083894147] [2021-12-17 04:45:08,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083894147] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051775632] [2021-12-17 04:45:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:08,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:08,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:08,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:45:08,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 04:45:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:08,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:45:08,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 609 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-12-17 04:45:09,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:09,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051775632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:09,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:09,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:45:09,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474870442] [2021-12-17 04:45:09,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:09,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:45:09,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:09,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:45:09,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:45:09,543 INFO L87 Difference]: Start difference. First operand 2674 states and 3063 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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) [2021-12-17 04:45:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:10,089 INFO L93 Difference]: Finished difference Result 5702 states and 6553 transitions. [2021-12-17 04:45:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:45:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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 492 [2021-12-17 04:45:10,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:10,099 INFO L225 Difference]: With dead ends: 5702 [2021-12-17 04:45:10,099 INFO L226 Difference]: Without dead ends: 3030 [2021-12-17 04:45:10,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:45:10,103 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 160 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:10,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 50 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:45:10,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-17 04:45:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-12-17 04:45:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.1383294816771212) internal successors, (3448), 3029 states have internal predecessors, (3448), 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) [2021-12-17 04:45:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3448 transitions. [2021-12-17 04:45:10,142 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3448 transitions. Word has length 492 [2021-12-17 04:45:10,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:10,142 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3448 transitions. [2021-12-17 04:45:10,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 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) [2021-12-17 04:45:10,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3448 transitions. [2021-12-17 04:45:10,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2021-12-17 04:45:10,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:10,147 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:10,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:10,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:10,374 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:10,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2138867378, now seen corresponding path program 1 times [2021-12-17 04:45:10,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:10,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293925159] [2021-12-17 04:45:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:10,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1149 backedges. 757 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-12-17 04:45:10,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:10,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293925159] [2021-12-17 04:45:10,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293925159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:10,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:45:10,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:45:10,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678417337] [2021-12-17 04:45:10,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:10,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:45:10,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:10,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:45:10,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:45:10,531 INFO L87 Difference]: Start difference. First operand 3030 states and 3448 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-12-17 04:45:10,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:10,953 INFO L93 Difference]: Finished difference Result 5909 states and 6744 transitions. [2021-12-17 04:45:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:45:10,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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 548 [2021-12-17 04:45:10,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:10,960 INFO L225 Difference]: With dead ends: 5909 [2021-12-17 04:45:10,961 INFO L226 Difference]: Without dead ends: 3030 [2021-12-17 04:45:10,963 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 [2021-12-17 04:45:10,964 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:10,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:45:10,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-17 04:45:10,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-12-17 04:45:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.095741168702542) internal successors, (3319), 3029 states have internal predecessors, (3319), 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) [2021-12-17 04:45:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3319 transitions. [2021-12-17 04:45:10,997 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3319 transitions. Word has length 548 [2021-12-17 04:45:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:10,997 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3319 transitions. [2021-12-17 04:45:10,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 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) [2021-12-17 04:45:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3319 transitions. [2021-12-17 04:45:11,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-12-17 04:45:11,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:11,002 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:11,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 04:45:11,002 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:11,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:11,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1101948657, now seen corresponding path program 1 times [2021-12-17 04:45:11,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:11,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729882096] [2021-12-17 04:45:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:11,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 887 proven. 11 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-12-17 04:45:11,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:11,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729882096] [2021-12-17 04:45:11,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729882096] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:11,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151605907] [2021-12-17 04:45:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:11,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:11,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:11,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:45:11,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 04:45:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:11,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 04:45:11,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:13,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 898 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-12-17 04:45:13,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:13,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151605907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:13,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:13,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-12-17 04:45:13,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854988275] [2021-12-17 04:45:13,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:13,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 04:45:13,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:13,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 04:45:13,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-17 04:45:13,416 INFO L87 Difference]: Start difference. First operand 3030 states and 3319 transitions. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 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) [2021-12-17 04:45:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:14,046 INFO L93 Difference]: Finished difference Result 5880 states and 6457 transitions. [2021-12-17 04:45:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:45:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 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 574 [2021-12-17 04:45:14,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:14,054 INFO L225 Difference]: With dead ends: 5880 [2021-12-17 04:45:14,054 INFO L226 Difference]: Without dead ends: 3030 [2021-12-17 04:45:14,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-12-17 04:45:14,057 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 260 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:14,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 53 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:45:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-17 04:45:14,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2021-12-17 04:45:14,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.091657313879536) internal successors, (2918), 2673 states have internal predecessors, (2918), 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) [2021-12-17 04:45:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2918 transitions. [2021-12-17 04:45:14,114 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2918 transitions. Word has length 574 [2021-12-17 04:45:14,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:14,115 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2918 transitions. [2021-12-17 04:45:14,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 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) [2021-12-17 04:45:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2918 transitions. [2021-12-17 04:45:14,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2021-12-17 04:45:14,120 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:14,120 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:14,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:14,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-17 04:45:14,338 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:14,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:14,339 INFO L85 PathProgramCache]: Analyzing trace with hash 616164795, now seen corresponding path program 1 times [2021-12-17 04:45:14,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:14,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129590148] [2021-12-17 04:45:14,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:14,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 883 proven. 93 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-12-17 04:45:14,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:14,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129590148] [2021-12-17 04:45:14,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129590148] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:14,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148877231] [2021-12-17 04:45:14,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:14,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:14,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:14,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:45:14,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 04:45:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:14,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:45:14,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1330 backedges. 976 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-12-17 04:45:15,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:15,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148877231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:15,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:15,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:45:15,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712533405] [2021-12-17 04:45:15,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:15,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:15,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:15,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:15,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:15,469 INFO L87 Difference]: Start difference. First operand 2674 states and 2918 transitions. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2021-12-17 04:45:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:15,826 INFO L93 Difference]: Finished difference Result 6236 states and 6826 transitions. [2021-12-17 04:45:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:15,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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 712 [2021-12-17 04:45:15,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:15,834 INFO L225 Difference]: With dead ends: 6236 [2021-12-17 04:45:15,835 INFO L226 Difference]: Without dead ends: 3742 [2021-12-17 04:45:15,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:45:15,838 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:15,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 56 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:45:15,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-12-17 04:45:15,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2021-12-17 04:45:15,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0815290029403903) internal successors, (4046), 3741 states have internal predecessors, (4046), 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) [2021-12-17 04:45:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4046 transitions. [2021-12-17 04:45:15,882 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4046 transitions. Word has length 712 [2021-12-17 04:45:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:15,882 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4046 transitions. [2021-12-17 04:45:15,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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) [2021-12-17 04:45:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4046 transitions. [2021-12-17 04:45:15,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 868 [2021-12-17 04:45:15,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:45:15,889 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2021-12-17 04:45:15,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:16,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:16,095 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:45:16,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:45:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash 332080098, now seen corresponding path program 1 times [2021-12-17 04:45:16,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:45:16,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585348408] [2021-12-17 04:45:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:16,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:45:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2003 backedges. 1494 proven. 155 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-12-17 04:45:16,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:45:16,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585348408] [2021-12-17 04:45:16,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585348408] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:45:16,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049317636] [2021-12-17 04:45:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:45:16,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:16,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:45:16,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:45:16,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-17 04:45:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:45:16,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:45:16,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:45:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2003 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2021-12-17 04:45:17,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:45:17,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049317636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:45:17,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:45:17,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-17 04:45:17,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104081817] [2021-12-17 04:45:17,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:45:17,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:45:17,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:45:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:45:17,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:45:17,349 INFO L87 Difference]: Start difference. First operand 3742 states and 4046 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2021-12-17 04:45:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:45:17,685 INFO L93 Difference]: Finished difference Result 8192 states and 8874 transitions. [2021-12-17 04:45:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:45:17,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 867 [2021-12-17 04:45:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:45:17,687 INFO L225 Difference]: With dead ends: 8192 [2021-12-17 04:45:17,687 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 04:45:17,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 870 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:45:17,691 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 143 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:45:17,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 229 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:45:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 04:45:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 04:45:17,692 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) [2021-12-17 04:45:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 04:45:17,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 867 [2021-12-17 04:45:17,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:45:17,692 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 04:45:17,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2021-12-17 04:45:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 04:45:17,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 04:45:17,695 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 04:45:17,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-17 04:45:17,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:45:17,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 04:45:18,235 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-17 04:45:18,235 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-17 04:45:18,235 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-17 04:45:18,235 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-17 04:45:18,235 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-17 04:45:18,236 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-17 04:45:18,237 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,238 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,239 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-17 04:45:18,240 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-17 04:45:18,241 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,242 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-17 04:45:18,243 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-17 04:45:18,244 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-17 04:45:18,244 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,244 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,245 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,245 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-17 04:45:18,246 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-17 04:45:18,247 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,248 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-17 04:45:18,249 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-17 04:45:18,250 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-17 04:45:18,251 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-17 04:45:18,252 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,253 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-17 04:45:18,254 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-17 04:45:18,255 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1))) (or (and .cse0 (<= ~a21~0 8)) (and (<= ~a21~0 6) .cse1 (<= (+ ~a12~0 43) 0)) (and .cse1 .cse0 (not (= ~a15~0 7))) (and .cse0 (< 11 ~a12~0)) (and (<= 10 ~a21~0) .cse0))) [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-17 04:45:18,256 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-17 04:45:18,257 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-17 04:45:18,258 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-17 04:45:18,259 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,260 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-17 04:45:18,261 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse1 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1))) (or (and .cse0 (<= ~a21~0 8)) (and (<= ~a21~0 6) .cse1 (<= (+ ~a12~0 43) 0)) (and .cse1 .cse0 (not (= ~a15~0 7))) (and .cse0 (< 11 ~a12~0)) (and (<= 10 ~a21~0) .cse0))) [2021-12-17 04:45:18,261 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-17 04:45:18,261 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-17 04:45:18,261 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-17 04:45:18,261 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,262 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:45:18,263 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-17 04:45:18,263 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-17 04:45:18,263 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-17 04:45:18,263 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-17 04:45:18,266 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:45:18,267 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 04:45:18,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 04:45:18 BoogieIcfgContainer [2021-12-17 04:45:18,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 04:45:18,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 04:45:18,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 04:45:18,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 04:45:18,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:45:00" (3/4) ... [2021-12-17 04:45:18,287 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 04:45:18,314 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 04:45:18,315 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 04:45:18,316 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 04:45:18,316 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 04:45:18,401 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 04:45:18,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 04:45:18,402 INFO L158 Benchmark]: Toolchain (without parser) took 19382.92ms. Allocated memory was 81.8MB in the beginning and 352.3MB in the end (delta: 270.5MB). Free memory was 45.8MB in the beginning and 276.6MB in the end (delta: -230.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,402 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 04:45:18,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.75ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 45.5MB in the beginning and 57.9MB in the end (delta: -12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.05ms. Allocated memory is still 102.8MB. Free memory was 57.9MB in the beginning and 48.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,403 INFO L158 Benchmark]: Boogie Preprocessor took 83.69ms. Allocated memory is still 102.8MB. Free memory was 48.4MB in the beginning and 42.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,403 INFO L158 Benchmark]: RCFGBuilder took 970.50ms. Allocated memory is still 102.8MB. Free memory was 42.5MB in the beginning and 43.4MB in the end (delta: -869.9kB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,404 INFO L158 Benchmark]: TraceAbstraction took 17685.80ms. Allocated memory was 102.8MB in the beginning and 352.3MB in the end (delta: 249.6MB). Free memory was 42.8MB in the beginning and 295.4MB in the end (delta: -252.6MB). Peak memory consumption was 156.0MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,404 INFO L158 Benchmark]: Witness Printer took 116.89ms. Allocated memory is still 352.3MB. Free memory was 295.4MB in the beginning and 276.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-17 04:45:18,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.75ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 45.5MB in the beginning and 57.9MB in the end (delta: -12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.05ms. Allocated memory is still 102.8MB. Free memory was 57.9MB in the beginning and 48.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.69ms. Allocated memory is still 102.8MB. Free memory was 48.4MB in the beginning and 42.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 970.50ms. Allocated memory is still 102.8MB. Free memory was 42.5MB in the beginning and 43.4MB in the end (delta: -869.9kB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17685.80ms. Allocated memory was 102.8MB in the beginning and 352.3MB in the end (delta: 249.6MB). Free memory was 42.8MB in the beginning and 295.4MB in the end (delta: -252.6MB). Peak memory consumption was 156.0MB. Max. memory is 16.1GB. * Witness Printer took 116.89ms. Allocated memory is still 352.3MB. Free memory was 295.4MB in the beginning and 276.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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: 140]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 12, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1989 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1989 mSDsluCounter, 1285 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 1317 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6799 IncrementalHoareTripleChecker+Invalid, 8116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1317 mSolverCounterUnsat, 1211 mSDtfsCounter, 6799 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4002 GetRequests, 3963 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3742occurred in iteration=11, InterpolantAutomatonStates: 41, 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, 12 MinimizatonAttempts, 1070 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 64 NumberOfFragments, 91 HoareAnnotationTreeSize, 3 FomulaSimplifications, 150 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1358 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 9269 NumberOfCodeBlocks, 9269 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 9250 ConstructedInterpolants, 0 QuantifiedInterpolants, 35352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5085 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 16078/16429 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: 30]: Loop Invariant Derived loop invariant: ((((a24 == 1 && a21 <= 8) || ((a21 <= 6 && a15 <= 8) && a12 + 43 <= 0)) || ((a15 <= 8 && a24 == 1) && !(a15 == 7))) || (a24 == 1 && 11 < a12)) || (10 <= a21 && a24 == 1) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((a24 == 1 && a21 <= 8) || ((a21 <= 6 && a15 <= 8) && a12 + 43 <= 0)) || ((a15 <= 8 && a24 == 1) && !(a15 == 7))) || (a24 == 1 && 11 < a12)) || (10 <= a21 && a24 == 1) RESULT: Ultimate proved your program to be correct! [2021-12-17 04:45:18,431 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