./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/Problem03_label40.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 bdb5233f5cbaadb62146f934f5ab86553cda8ead .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:47:44,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:47:44,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:47:44,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:47:44,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:47:44,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:47:44,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:47:44,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:47:44,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:47:44,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:47:44,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:47:44,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:47:44,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:47:44,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:47:44,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:47:44,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:47:44,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:47:44,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:47:44,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:47:44,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:47:44,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:47:44,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:47:44,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:47:44,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:47:44,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:47:44,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:47:44,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:47:44,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:47:44,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:47:44,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:47:44,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:47:44,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:47:44,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:47:44,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:47:44,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:47:44,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:47:44,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:47:44,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:47:44,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:47:44,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:47:44,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:47:44,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:47:44,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:47:44,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:47:44,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:47:44,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:47:44,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:47:44,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:47:44,223 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:47:44,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:47:44,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:47:44,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:47:44,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:47:44,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:47:44,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:47:44,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:47:44,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:47:44,225 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:47:44,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:47:44,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:47:44,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:47:44,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:47:44,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:47:44,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:47:44,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:47:44,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:47:44,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:47:44,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:47:44,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:47:44,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:47:44,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:47:44,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:47:44,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdb5233f5cbaadb62146f934f5ab86553cda8ead [2021-08-25 20:47:44,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:47:44,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:47:44,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:47:44,506 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:47:44,507 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:47:44,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label40.c [2021-08-25 20:47:44,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96f3c12a0/e52555200fef4e4ea0c1c07631aca3fa/FLAGd3a414c32 [2021-08-25 20:47:45,079 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:47:45,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label40.c [2021-08-25 20:47:45,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96f3c12a0/e52555200fef4e4ea0c1c07631aca3fa/FLAGd3a414c32 [2021-08-25 20:47:45,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96f3c12a0/e52555200fef4e4ea0c1c07631aca3fa [2021-08-25 20:47:45,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:47:45,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:47:45,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:47:45,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:47:45,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:47:45,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:47:45" (1/1) ... [2021-08-25 20:47:45,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac4d638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:45, skipping insertion in model container [2021-08-25 20:47:45,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:47:45" (1/1) ... [2021-08-25 20:47:45,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:47:45,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:47:46,047 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label40.c[59070,59083] [2021-08-25 20:47:46,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:47:46,067 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:47:46,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label40.c[59070,59083] [2021-08-25 20:47:46,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:47:46,219 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:47:46,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46 WrapperNode [2021-08-25 20:47:46,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:47:46,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:47:46,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:47:46,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:47:46,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:47:46,344 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:47:46,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:47:46,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:47:46,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:47:46,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:47:46,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:47:46,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:47:46,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (1/1) ... [2021-08-25 20:47:46,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:47:46,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:47:46,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 20:47:46,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 20:47:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:47:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:47:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:47:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:47:47,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:47:47,839 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:47:47,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:47:47 BoogieIcfgContainer [2021-08-25 20:47:47,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:47:47,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:47:47,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:47:47,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:47:47,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:47:45" (1/3) ... [2021-08-25 20:47:47,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b59045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:47:47, skipping insertion in model container [2021-08-25 20:47:47,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:47:46" (2/3) ... [2021-08-25 20:47:47,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b59045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:47:47, skipping insertion in model container [2021-08-25 20:47:47,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:47:47" (3/3) ... [2021-08-25 20:47:47,847 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label40.c [2021-08-25 20:47:47,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:47:47,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:47:47,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:47:47,898 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 20:47:47,898 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:47:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-08-25 20:47:47,938 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:47,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:47,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:47,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:47,943 INFO L82 PathProgramCache]: Analyzing trace with hash 359811874, now seen corresponding path program 1 times [2021-08-25 20:47:47,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:47,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018586726] [2021-08-25 20:47:47,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:47,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:48,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:48,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018586726] [2021-08-25 20:47:48,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018586726] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:48,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:48,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:47:48,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623153392] [2021-08-25 20:47:48,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:48,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:48,361 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:49,312 INFO L93 Difference]: Finished difference Result 855 states and 1496 transitions. [2021-08-25 20:47:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:49,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 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 184 [2021-08-25 20:47:49,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:49,324 INFO L225 Difference]: With dead ends: 855 [2021-08-25 20:47:49,324 INFO L226 Difference]: Without dead ends: 460 [2021-08-25 20:47:49,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-08-25 20:47:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2021-08-25 20:47:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.5502183406113537) internal successors, (710), 458 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 710 transitions. [2021-08-25 20:47:49,370 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 710 transitions. Word has length 184 [2021-08-25 20:47:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:49,370 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 710 transitions. [2021-08-25 20:47:49,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 710 transitions. [2021-08-25 20:47:49,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-08-25 20:47:49,373 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:49,373 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:49,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:47:49,374 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:49,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:49,374 INFO L82 PathProgramCache]: Analyzing trace with hash -116317198, now seen corresponding path program 1 times [2021-08-25 20:47:49,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:49,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251628033] [2021-08-25 20:47:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:49,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:49,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:49,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:49,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251628033] [2021-08-25 20:47:49,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251628033] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:49,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:49,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:47:49,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088547059] [2021-08-25 20:47:49,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:49,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:49,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:49,462 INFO L87 Difference]: Start difference. First operand 459 states and 710 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:50,211 INFO L93 Difference]: Finished difference Result 1342 states and 2082 transitions. [2021-08-25 20:47:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:50,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 189 [2021-08-25 20:47:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:50,215 INFO L225 Difference]: With dead ends: 1342 [2021-08-25 20:47:50,215 INFO L226 Difference]: Without dead ends: 885 [2021-08-25 20:47:50,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2021-08-25 20:47:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 880. [2021-08-25 20:47:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4687144482366326) internal successors, (1291), 879 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1291 transitions. [2021-08-25 20:47:50,242 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1291 transitions. Word has length 189 [2021-08-25 20:47:50,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:50,243 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1291 transitions. [2021-08-25 20:47:50,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1291 transitions. [2021-08-25 20:47:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-08-25 20:47:50,246 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:50,246 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:50,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:47:50,246 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:50,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1976846399, now seen corresponding path program 1 times [2021-08-25 20:47:50,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:50,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493966273] [2021-08-25 20:47:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:50,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:50,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:50,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493966273] [2021-08-25 20:47:50,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493966273] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:50,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:50,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:47:50,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412426485] [2021-08-25 20:47:50,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:50,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:50,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:50,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:50,293 INFO L87 Difference]: Start difference. First operand 880 states and 1291 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:50,929 INFO L93 Difference]: Finished difference Result 2594 states and 3822 transitions. [2021-08-25 20:47:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:50,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 192 [2021-08-25 20:47:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:50,936 INFO L225 Difference]: With dead ends: 2594 [2021-08-25 20:47:50,936 INFO L226 Difference]: Without dead ends: 1716 [2021-08-25 20:47:50,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2021-08-25 20:47:50,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1696. [2021-08-25 20:47:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1695 states have (on average 1.4395280235988202) internal successors, (2440), 1695 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:50,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2440 transitions. [2021-08-25 20:47:50,959 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2440 transitions. Word has length 192 [2021-08-25 20:47:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:50,959 INFO L470 AbstractCegarLoop]: Abstraction has 1696 states and 2440 transitions. [2021-08-25 20:47:50,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:50,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2440 transitions. [2021-08-25 20:47:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-08-25 20:47:50,962 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:50,963 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:50,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:47:50,963 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:50,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash 2013935212, now seen corresponding path program 1 times [2021-08-25 20:47:50,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:50,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319010173] [2021-08-25 20:47:50,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:50,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:47:51,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:51,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319010173] [2021-08-25 20:47:51,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319010173] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:51,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:51,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:47:51,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568205860] [2021-08-25 20:47:51,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:47:51,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:51,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:47:51,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:47:51,175 INFO L87 Difference]: Start difference. First operand 1696 states and 2440 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:51,931 INFO L93 Difference]: Finished difference Result 3531 states and 5130 transitions. [2021-08-25 20:47:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:47:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 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 199 [2021-08-25 20:47:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:51,937 INFO L225 Difference]: With dead ends: 3531 [2021-08-25 20:47:51,937 INFO L226 Difference]: Without dead ends: 1663 [2021-08-25 20:47:51,939 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:47:51,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2021-08-25 20:47:51,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2021-08-25 20:47:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.325511432009627) internal successors, (2203), 1662 states have internal predecessors, (2203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:51,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2203 transitions. [2021-08-25 20:47:51,963 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2203 transitions. Word has length 199 [2021-08-25 20:47:51,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:51,963 INFO L470 AbstractCegarLoop]: Abstraction has 1663 states and 2203 transitions. [2021-08-25 20:47:51,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2203 transitions. [2021-08-25 20:47:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-08-25 20:47:51,967 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:51,967 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:51,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:47:51,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:51,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:51,968 INFO L82 PathProgramCache]: Analyzing trace with hash -611089167, now seen corresponding path program 1 times [2021-08-25 20:47:51,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:51,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532176143] [2021-08-25 20:47:51,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:51,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:52,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:52,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532176143] [2021-08-25 20:47:52,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532176143] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:52,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:52,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:47:52,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173204845] [2021-08-25 20:47:52,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:47:52,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:47:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:47:52,141 INFO L87 Difference]: Start difference. First operand 1663 states and 2203 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:53,045 INFO L93 Difference]: Finished difference Result 4323 states and 5743 transitions. [2021-08-25 20:47:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:47:53,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2021-08-25 20:47:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:53,052 INFO L225 Difference]: With dead ends: 4323 [2021-08-25 20:47:53,052 INFO L226 Difference]: Without dead ends: 2488 [2021-08-25 20:47:53,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:47:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2021-08-25 20:47:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2487. [2021-08-25 20:47:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2486 states have (on average 1.3085277554304102) internal successors, (3253), 2486 states have internal predecessors, (3253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:53,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3253 transitions. [2021-08-25 20:47:53,084 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3253 transitions. Word has length 215 [2021-08-25 20:47:53,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:53,084 INFO L470 AbstractCegarLoop]: Abstraction has 2487 states and 3253 transitions. [2021-08-25 20:47:53,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:53,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3253 transitions. [2021-08-25 20:47:53,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-08-25 20:47:53,088 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:53,089 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:53,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 20:47:53,089 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:53,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:53,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1625909836, now seen corresponding path program 1 times [2021-08-25 20:47:53,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:53,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594932597] [2021-08-25 20:47:53,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:53,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-25 20:47:53,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:53,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594932597] [2021-08-25 20:47:53,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594932597] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:53,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:53,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:47:53,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363592114] [2021-08-25 20:47:53,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:53,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:53,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:53,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:53,161 INFO L87 Difference]: Start difference. First operand 2487 states and 3253 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:53,779 INFO L93 Difference]: Finished difference Result 6628 states and 8644 transitions. [2021-08-25 20:47:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:53,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-08-25 20:47:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:53,790 INFO L225 Difference]: With dead ends: 6628 [2021-08-25 20:47:53,790 INFO L226 Difference]: Without dead ends: 4143 [2021-08-25 20:47:53,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2021-08-25 20:47:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4140. [2021-08-25 20:47:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4139 states have (on average 1.2974148345010872) internal successors, (5370), 4139 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 5370 transitions. [2021-08-25 20:47:53,842 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 5370 transitions. Word has length 217 [2021-08-25 20:47:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:53,842 INFO L470 AbstractCegarLoop]: Abstraction has 4140 states and 5370 transitions. [2021-08-25 20:47:53,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 5370 transitions. [2021-08-25 20:47:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-08-25 20:47:53,848 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:53,849 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:53,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:47:53,849 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:53,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1297200614, now seen corresponding path program 1 times [2021-08-25 20:47:53,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:53,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754724654] [2021-08-25 20:47:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:53,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:53,908 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:53,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:53,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754724654] [2021-08-25 20:47:53,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754724654] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:47:53,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257493862] [2021-08-25 20:47:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:53,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:47:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:47:53,912 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) [2021-08-25 20:47:53,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 20:47:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:54,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:47:54,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:47:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-08-25 20:47:54,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257493862] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:54,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:47:54,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:47:54,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666859951] [2021-08-25 20:47:54,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:54,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:54,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:47:54,762 INFO L87 Difference]: Start difference. First operand 4140 states and 5370 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:55,393 INFO L93 Difference]: Finished difference Result 8287 states and 10754 transitions. [2021-08-25 20:47:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:55,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 222 [2021-08-25 20:47:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:55,404 INFO L225 Difference]: With dead ends: 8287 [2021-08-25 20:47:55,404 INFO L226 Difference]: Without dead ends: 4149 [2021-08-25 20:47:55,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:47:55,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2021-08-25 20:47:55,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4140. [2021-08-25 20:47:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4140 states, 4139 states have (on average 1.2867842474027542) internal successors, (5326), 4139 states have internal predecessors, (5326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4140 states to 4140 states and 5326 transitions. [2021-08-25 20:47:55,461 INFO L78 Accepts]: Start accepts. Automaton has 4140 states and 5326 transitions. Word has length 222 [2021-08-25 20:47:55,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:55,462 INFO L470 AbstractCegarLoop]: Abstraction has 4140 states and 5326 transitions. [2021-08-25 20:47:55,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4140 states and 5326 transitions. [2021-08-25 20:47:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-08-25 20:47:55,468 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:55,468 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:55,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 20:47:55,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:47:55,681 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:55,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:55,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1508014006, now seen corresponding path program 1 times [2021-08-25 20:47:55,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:55,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646687389] [2021-08-25 20:47:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:55,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:47:55,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:55,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646687389] [2021-08-25 20:47:55,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646687389] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:47:55,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836180526] [2021-08-25 20:47:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:55,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:47:55,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:47:55,741 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) [2021-08-25 20:47:55,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 20:47:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:55,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:47:55,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:47:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-25 20:47:56,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836180526] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:56,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:47:56,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:47:56,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147542519] [2021-08-25 20:47:56,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:56,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:56,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:56,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:47:56,562 INFO L87 Difference]: Start difference. First operand 4140 states and 5326 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:57,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:57,205 INFO L93 Difference]: Finished difference Result 12344 states and 15880 transitions. [2021-08-25 20:47:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:57,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 228 [2021-08-25 20:47:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:57,232 INFO L225 Difference]: With dead ends: 12344 [2021-08-25 20:47:57,232 INFO L226 Difference]: Without dead ends: 8206 [2021-08-25 20:47:57,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:47:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8206 states. [2021-08-25 20:47:57,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8206 to 8200. [2021-08-25 20:47:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8200 states, 8199 states have (on average 1.17685083546774) internal successors, (9649), 8199 states have internal predecessors, (9649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8200 states to 8200 states and 9649 transitions. [2021-08-25 20:47:57,348 INFO L78 Accepts]: Start accepts. Automaton has 8200 states and 9649 transitions. Word has length 228 [2021-08-25 20:47:57,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:57,348 INFO L470 AbstractCegarLoop]: Abstraction has 8200 states and 9649 transitions. [2021-08-25 20:47:57,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:57,348 INFO L276 IsEmpty]: Start isEmpty. Operand 8200 states and 9649 transitions. [2021-08-25 20:47:57,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-08-25 20:47:57,359 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:57,360 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:57,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 20:47:57,582 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,SelfDestructingSolverStorable7 [2021-08-25 20:47:57,582 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:57,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:57,583 INFO L82 PathProgramCache]: Analyzing trace with hash -646331936, now seen corresponding path program 1 times [2021-08-25 20:47:57,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:57,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40824619] [2021-08-25 20:47:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:57,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:57,647 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:57,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:57,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40824619] [2021-08-25 20:47:57,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40824619] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:57,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:57,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:47:57,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512131704] [2021-08-25 20:47:57,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:57,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:57,649 INFO L87 Difference]: Start difference. First operand 8200 states and 9649 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:58,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:58,303 INFO L93 Difference]: Finished difference Result 20464 states and 24526 transitions. [2021-08-25 20:47:58,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:58,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 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 228 [2021-08-25 20:47:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:58,330 INFO L225 Difference]: With dead ends: 20464 [2021-08-25 20:47:58,330 INFO L226 Difference]: Without dead ends: 12266 [2021-08-25 20:47:58,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2021-08-25 20:47:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 12260. [2021-08-25 20:47:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12260 states, 12259 states have (on average 1.149196508687495) internal successors, (14088), 12259 states have internal predecessors, (14088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 14088 transitions. [2021-08-25 20:47:58,545 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 14088 transitions. Word has length 228 [2021-08-25 20:47:58,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:58,546 INFO L470 AbstractCegarLoop]: Abstraction has 12260 states and 14088 transitions. [2021-08-25 20:47:58,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:58,546 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 14088 transitions. [2021-08-25 20:47:58,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-08-25 20:47:58,557 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:58,557 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:58,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:47:58,557 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:58,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:58,558 INFO L82 PathProgramCache]: Analyzing trace with hash 526463015, now seen corresponding path program 1 times [2021-08-25 20:47:58,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:58,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777061864] [2021-08-25 20:47:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:58,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:58,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:58,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777061864] [2021-08-25 20:47:58,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777061864] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:47:58,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:47:58,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:47:58,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632969070] [2021-08-25 20:47:58,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:47:58,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:47:58,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:47:58,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:58,625 INFO L87 Difference]: Start difference. First operand 12260 states and 14088 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:59,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:47:59,266 INFO L93 Difference]: Finished difference Result 35312 states and 40582 transitions. [2021-08-25 20:47:59,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:47:59,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 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 259 [2021-08-25 20:47:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:47:59,351 INFO L225 Difference]: With dead ends: 35312 [2021-08-25 20:47:59,351 INFO L226 Difference]: Without dead ends: 23054 [2021-08-25 20:47:59,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:47:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23054 states. [2021-08-25 20:47:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23054 to 18965. [2021-08-25 20:47:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18965 states, 18964 states have (on average 1.1624657245306897) internal successors, (22045), 18964 states have internal predecessors, (22045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18965 states to 18965 states and 22045 transitions. [2021-08-25 20:47:59,557 INFO L78 Accepts]: Start accepts. Automaton has 18965 states and 22045 transitions. Word has length 259 [2021-08-25 20:47:59,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:47:59,557 INFO L470 AbstractCegarLoop]: Abstraction has 18965 states and 22045 transitions. [2021-08-25 20:47:59,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:47:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 18965 states and 22045 transitions. [2021-08-25 20:47:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-08-25 20:47:59,578 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:47:59,578 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:47:59,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 20:47:59,579 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:47:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:47:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1715390059, now seen corresponding path program 1 times [2021-08-25 20:47:59,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:47:59,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874311599] [2021-08-25 20:47:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:59,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:47:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:47:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 77 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:47:59,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:47:59,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874311599] [2021-08-25 20:47:59,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874311599] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:47:59,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071735257] [2021-08-25 20:47:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:47:59,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:47:59,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:47:59,785 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) [2021-08-25 20:47:59,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 20:48:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:00,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:48:00,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:48:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:48:00,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071735257] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:00,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:48:00,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 20:48:00,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220028711] [2021-08-25 20:48:00,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:00,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:00,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:00,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:48:00,807 INFO L87 Difference]: Start difference. First operand 18965 states and 22045 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:01,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:01,432 INFO L93 Difference]: Finished difference Result 37934 states and 44098 transitions. [2021-08-25 20:48:01,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:01,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 264 [2021-08-25 20:48:01,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:01,458 INFO L225 Difference]: With dead ends: 37934 [2021-08-25 20:48:01,458 INFO L226 Difference]: Without dead ends: 18971 [2021-08-25 20:48:01,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.3ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:48:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18971 states. [2021-08-25 20:48:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18971 to 18559. [2021-08-25 20:48:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18559 states, 18558 states have (on average 1.1509860976398318) internal successors, (21360), 18558 states have internal predecessors, (21360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:01,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18559 states to 18559 states and 21360 transitions. [2021-08-25 20:48:01,661 INFO L78 Accepts]: Start accepts. Automaton has 18559 states and 21360 transitions. Word has length 264 [2021-08-25 20:48:01,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:01,661 INFO L470 AbstractCegarLoop]: Abstraction has 18559 states and 21360 transitions. [2021-08-25 20:48:01,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:01,661 INFO L276 IsEmpty]: Start isEmpty. Operand 18559 states and 21360 transitions. [2021-08-25 20:48:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-08-25 20:48:01,684 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:01,685 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:01,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 20:48:01,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:01,901 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:01,902 INFO L82 PathProgramCache]: Analyzing trace with hash 177813021, now seen corresponding path program 1 times [2021-08-25 20:48:01,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:01,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694585582] [2021-08-25 20:48:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:01,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 87 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-08-25 20:48:01,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:01,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694585582] [2021-08-25 20:48:01,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694585582] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:48:01,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744349839] [2021-08-25 20:48:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:01,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:01,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:48:01,981 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) [2021-08-25 20:48:02,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 20:48:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:02,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:48:02,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:48:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-25 20:48:02,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744349839] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:02,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:48:02,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-25 20:48:02,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813664373] [2021-08-25 20:48:02,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:02,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:02,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:02,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:48:02,939 INFO L87 Difference]: Start difference. First operand 18559 states and 21360 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:03,616 INFO L93 Difference]: Finished difference Result 48714 states and 56204 transitions. [2021-08-25 20:48:03,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:03,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 266 [2021-08-25 20:48:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:03,656 INFO L225 Difference]: With dead ends: 48714 [2021-08-25 20:48:03,656 INFO L226 Difference]: Without dead ends: 30157 [2021-08-25 20:48:03,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-25 20:48:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30157 states. [2021-08-25 20:48:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30157 to 30148. [2021-08-25 20:48:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30148 states, 30147 states have (on average 1.1390851494344378) internal successors, (34340), 30147 states have internal predecessors, (34340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30148 states to 30148 states and 34340 transitions. [2021-08-25 20:48:03,955 INFO L78 Accepts]: Start accepts. Automaton has 30148 states and 34340 transitions. Word has length 266 [2021-08-25 20:48:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:03,956 INFO L470 AbstractCegarLoop]: Abstraction has 30148 states and 34340 transitions. [2021-08-25 20:48:03,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 30148 states and 34340 transitions. [2021-08-25 20:48:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-08-25 20:48:03,992 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:03,992 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:04,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 20:48:04,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:04,215 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:04,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1450113362, now seen corresponding path program 1 times [2021-08-25 20:48:04,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:04,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265707325] [2021-08-25 20:48:04,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:04,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 161 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:48:04,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:04,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265707325] [2021-08-25 20:48:04,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265707325] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:48:04,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308028677] [2021-08-25 20:48:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:04,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:04,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:48:04,392 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) [2021-08-25 20:48:04,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 20:48:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:04,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:48:04,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:48:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-08-25 20:48:05,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308028677] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:05,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:48:05,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 20:48:05,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469138427] [2021-08-25 20:48:05,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:05,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:05,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:48:05,665 INFO L87 Difference]: Start difference. First operand 30148 states and 34340 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:06,414 INFO L93 Difference]: Finished difference Result 59691 states and 67959 transitions. [2021-08-25 20:48:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:06,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 306 [2021-08-25 20:48:06,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:06,452 INFO L225 Difference]: With dead ends: 59691 [2021-08-25 20:48:06,452 INFO L226 Difference]: Without dead ends: 29545 [2021-08-25 20:48:06,470 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:48:06,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29545 states. [2021-08-25 20:48:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29545 to 28312. [2021-08-25 20:48:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28312 states, 28311 states have (on average 1.1143371834269364) internal successors, (31548), 28311 states have internal predecessors, (31548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28312 states to 28312 states and 31548 transitions. [2021-08-25 20:48:06,760 INFO L78 Accepts]: Start accepts. Automaton has 28312 states and 31548 transitions. Word has length 306 [2021-08-25 20:48:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:06,761 INFO L470 AbstractCegarLoop]: Abstraction has 28312 states and 31548 transitions. [2021-08-25 20:48:06,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:06,761 INFO L276 IsEmpty]: Start isEmpty. Operand 28312 states and 31548 transitions. [2021-08-25 20:48:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-08-25 20:48:06,790 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:06,790 INFO L512 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:06,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 20:48:06,999 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,SelfDestructingSolverStorable12 [2021-08-25 20:48:06,999 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:07,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1926709784, now seen corresponding path program 1 times [2021-08-25 20:48:07,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:07,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563375037] [2021-08-25 20:48:07,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:07,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:48:07,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:07,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563375037] [2021-08-25 20:48:07,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563375037] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:07,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:48:07,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:48:07,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819139084] [2021-08-25 20:48:07,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:07,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:07,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:07,150 INFO L87 Difference]: Start difference. First operand 28312 states and 31548 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:07,863 INFO L93 Difference]: Finished difference Result 54163 states and 60235 transitions. [2021-08-25 20:48:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:07,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 389 [2021-08-25 20:48:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:07,895 INFO L225 Difference]: With dead ends: 54163 [2021-08-25 20:48:07,895 INFO L226 Difference]: Without dead ends: 25853 [2021-08-25 20:48:07,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:07,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25853 states. [2021-08-25 20:48:08,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25853 to 25850. [2021-08-25 20:48:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25850 states, 25849 states have (on average 1.0884366900073503) internal successors, (28135), 25849 states have internal predecessors, (28135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25850 states to 25850 states and 28135 transitions. [2021-08-25 20:48:08,165 INFO L78 Accepts]: Start accepts. Automaton has 25850 states and 28135 transitions. Word has length 389 [2021-08-25 20:48:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:08,166 INFO L470 AbstractCegarLoop]: Abstraction has 25850 states and 28135 transitions. [2021-08-25 20:48:08,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:08,166 INFO L276 IsEmpty]: Start isEmpty. Operand 25850 states and 28135 transitions. [2021-08-25 20:48:08,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-08-25 20:48:08,192 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:08,192 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:08,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 20:48:08,192 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:08,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:08,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1261781247, now seen corresponding path program 1 times [2021-08-25 20:48:08,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:08,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079368128] [2021-08-25 20:48:08,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:08,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-08-25 20:48:08,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:08,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079368128] [2021-08-25 20:48:08,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079368128] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:08,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:48:08,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:48:08,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092693964] [2021-08-25 20:48:08,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:08,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:08,275 INFO L87 Difference]: Start difference. First operand 25850 states and 28135 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:08,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:08,621 INFO L93 Difference]: Finished difference Result 73661 states and 80132 transitions. [2021-08-25 20:48:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:08,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 413 [2021-08-25 20:48:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:08,667 INFO L225 Difference]: With dead ends: 73661 [2021-08-25 20:48:08,668 INFO L226 Difference]: Without dead ends: 47813 [2021-08-25 20:48:08,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47813 states. [2021-08-25 20:48:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47813 to 47809. [2021-08-25 20:48:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47809 states, 47808 states have (on average 1.0802794511378848) internal successors, (51646), 47808 states have internal predecessors, (51646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47809 states to 47809 states and 51646 transitions. [2021-08-25 20:48:09,293 INFO L78 Accepts]: Start accepts. Automaton has 47809 states and 51646 transitions. Word has length 413 [2021-08-25 20:48:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:09,293 INFO L470 AbstractCegarLoop]: Abstraction has 47809 states and 51646 transitions. [2021-08-25 20:48:09,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 47809 states and 51646 transitions. [2021-08-25 20:48:09,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-08-25 20:48:09,339 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:09,340 INFO L512 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:09,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-25 20:48:09,340 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:09,341 INFO L82 PathProgramCache]: Analyzing trace with hash 743789497, now seen corresponding path program 1 times [2021-08-25 20:48:09,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:09,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735990040] [2021-08-25 20:48:09,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:09,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-08-25 20:48:09,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:09,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735990040] [2021-08-25 20:48:09,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735990040] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:09,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:48:09,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:48:09,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158572304] [2021-08-25 20:48:09,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:09,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:09,445 INFO L87 Difference]: Start difference. First operand 47809 states and 51646 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:10,275 INFO L93 Difference]: Finished difference Result 95005 states and 102608 transitions. [2021-08-25 20:48:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:10,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 416 [2021-08-25 20:48:10,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:10,331 INFO L225 Difference]: With dead ends: 95005 [2021-08-25 20:48:10,331 INFO L226 Difference]: Without dead ends: 47198 [2021-08-25 20:48:10,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:10,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47198 states. [2021-08-25 20:48:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47198 to 39478. [2021-08-25 20:48:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39478 states, 39477 states have (on average 1.0644932492337311) internal successors, (42023), 39477 states have internal predecessors, (42023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39478 states to 39478 states and 42023 transitions. [2021-08-25 20:48:10,974 INFO L78 Accepts]: Start accepts. Automaton has 39478 states and 42023 transitions. Word has length 416 [2021-08-25 20:48:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:10,975 INFO L470 AbstractCegarLoop]: Abstraction has 39478 states and 42023 transitions. [2021-08-25 20:48:10,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 39478 states and 42023 transitions. [2021-08-25 20:48:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2021-08-25 20:48:11,008 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:11,008 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:11,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 20:48:11,008 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:11,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1567454712, now seen corresponding path program 1 times [2021-08-25 20:48:11,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:11,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033190220] [2021-08-25 20:48:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:11,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2021-08-25 20:48:11,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:11,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033190220] [2021-08-25 20:48:11,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033190220] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:11,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:48:11,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:48:11,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645080179] [2021-08-25 20:48:11,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:11,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:11,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:11,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:11,115 INFO L87 Difference]: Start difference. First operand 39478 states and 42023 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:11,660 INFO L93 Difference]: Finished difference Result 113705 states and 120952 transitions. [2021-08-25 20:48:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 2 states have internal predecessors, (313), 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 417 [2021-08-25 20:48:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:11,737 INFO L225 Difference]: With dead ends: 113705 [2021-08-25 20:48:11,737 INFO L226 Difference]: Without dead ends: 74229 [2021-08-25 20:48:11,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:48:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74229 states. [2021-08-25 20:48:12,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74229 to 73417. [2021-08-25 20:48:12,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73417 states, 73416 states have (on average 1.0636237332461589) internal successors, (78087), 73416 states have internal predecessors, (78087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73417 states to 73417 states and 78087 transitions. [2021-08-25 20:48:12,684 INFO L78 Accepts]: Start accepts. Automaton has 73417 states and 78087 transitions. Word has length 417 [2021-08-25 20:48:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:12,684 INFO L470 AbstractCegarLoop]: Abstraction has 73417 states and 78087 transitions. [2021-08-25 20:48:12,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 73417 states and 78087 transitions. [2021-08-25 20:48:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-08-25 20:48:12,749 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:12,749 INFO L512 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:12,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 20:48:12,750 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:12,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:12,750 INFO L82 PathProgramCache]: Analyzing trace with hash 236642471, now seen corresponding path program 1 times [2021-08-25 20:48:12,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:12,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789734606] [2021-08-25 20:48:12,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:12,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 377 proven. 126 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-08-25 20:48:13,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:13,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789734606] [2021-08-25 20:48:13,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789734606] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:48:13,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630774815] [2021-08-25 20:48:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:13,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:13,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:48:13,220 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) [2021-08-25 20:48:13,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-25 20:48:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:13,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-25 20:48:13,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:48:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 410 proven. 30 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-08-25 20:48:15,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630774815] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:48:15,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 20:48:15,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-08-25 20:48:15,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139881733] [2021-08-25 20:48:15,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-25 20:48:15,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-25 20:48:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-25 20:48:15,266 INFO L87 Difference]: Start difference. First operand 73417 states and 78087 transitions. Second operand has 8 states, 8 states have (on average 79.75) internal successors, (638), 8 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:19,837 INFO L93 Difference]: Finished difference Result 291666 states and 310594 transitions. [2021-08-25 20:48:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-25 20:48:19,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 79.75) internal successors, (638), 8 states have internal predecessors, (638), 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 473 [2021-08-25 20:48:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:20,245 INFO L225 Difference]: With dead ends: 291666 [2021-08-25 20:48:20,245 INFO L226 Difference]: Without dead ends: 218251 [2021-08-25 20:48:20,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 340.8ms TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2021-08-25 20:48:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218251 states. [2021-08-25 20:48:22,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218251 to 197025. [2021-08-25 20:48:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197025 states, 197024 states have (on average 1.066260963131395) internal successors, (210079), 197024 states have internal predecessors, (210079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197025 states to 197025 states and 210079 transitions. [2021-08-25 20:48:23,419 INFO L78 Accepts]: Start accepts. Automaton has 197025 states and 210079 transitions. Word has length 473 [2021-08-25 20:48:23,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:23,420 INFO L470 AbstractCegarLoop]: Abstraction has 197025 states and 210079 transitions. [2021-08-25 20:48:23,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.75) internal successors, (638), 8 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:23,420 INFO L276 IsEmpty]: Start isEmpty. Operand 197025 states and 210079 transitions. [2021-08-25 20:48:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-08-25 20:48:23,588 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:48:23,588 INFO L512 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:48:23,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-25 20:48:23,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-08-25 20:48:23,790 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:48:23,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:48:23,790 INFO L82 PathProgramCache]: Analyzing trace with hash 198178771, now seen corresponding path program 1 times [2021-08-25 20:48:23,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:48:23,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896767555] [2021-08-25 20:48:23,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:23,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:48:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 261 proven. 6 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-08-25 20:48:24,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:48:24,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896767555] [2021-08-25 20:48:24,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896767555] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:48:24,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646274977] [2021-08-25 20:48:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:48:24,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:24,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:48:24,226 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) [2021-08-25 20:48:24,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-25 20:48:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:48:25,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 20:48:25,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:48:26,240 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2021-08-25 20:48:26,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646274977] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:48:26,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:48:26,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 20:48:26,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592300742] [2021-08-25 20:48:26,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:48:26,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:48:26,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:48:26,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:48:26,241 INFO L87 Difference]: Start difference. First operand 197025 states and 210079 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:48:28,216 INFO L93 Difference]: Finished difference Result 428218 states and 456153 transitions. [2021-08-25 20:48:28,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:48:28,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 491 [2021-08-25 20:48:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:48:28,217 INFO L225 Difference]: With dead ends: 428218 [2021-08-25 20:48:28,217 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:48:28,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 275.8ms TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:48:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:48:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:48:28,319 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) [2021-08-25 20:48:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:48:28,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 491 [2021-08-25 20:48:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:48:28,319 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:48:28,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:48:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:48:28,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:48:28,321 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:48:28,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-25 20:48:28,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:48:28,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:48:28,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:48:41,210 WARN L207 SmtUtils]: Spent 12.67 s on a formula simplification. DAG size of input: 2321 DAG size of output: 876 [2021-08-25 20:48:41,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:48:41,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:48:53,263 WARN L207 SmtUtils]: Spent 12.04 s on a formula simplification. DAG size of input: 2321 DAG size of output: 876 [2021-08-25 20:49:07,625 WARN L207 SmtUtils]: Spent 14.35 s on a formula simplification. DAG size of input: 815 DAG size of output: 99 [2021-08-25 20:49:21,821 WARN L207 SmtUtils]: Spent 14.19 s on a formula simplification. DAG size of input: 815 DAG size of output: 99 [2021-08-25 20:49:21,824 INFO L857 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-08-25 20:49:21,824 INFO L857 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-08-25 20:49:21,824 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,824 INFO L857 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-08-25 20:49:21,824 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,824 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,825 INFO L857 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-08-25 20:49:21,826 INFO L857 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-08-25 20:49:21,827 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,828 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,829 INFO L857 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-08-25 20:49:21,830 INFO L857 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-08-25 20:49:21,831 INFO L857 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:49:21,832 INFO L857 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,833 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,833 INFO L857 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-08-25 20:49:21,833 INFO L857 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-08-25 20:49:21,833 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,833 INFO L857 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-08-25 20:49:21,834 INFO L857 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,835 INFO L857 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1597) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,836 INFO L857 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-08-25 20:49:21,837 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,838 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L853 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse17 (<= ~a26~0 0)) (.cse0 (= ~a15~0 1)) (.cse12 (or (= ~a23~0 1) (= ~a16~0 1) (= ~a7~0 1))) (.cse10 (<= ~a3~0 0)) (.cse3 (= ~a11~0 1)) (.cse4 (<= ~a12~0 0)) (.cse5 (= ~a27~0 1)) (.cse7 (<= ~a6~0 0)) (.cse2 (<= ~a3~0 1)) (.cse11 (= ~a4~0 1)) (.cse8 (= ~a26~0 1)) (.cse18 (= ~a25~0 1)) (.cse1 (= ~a5~0 1)) (.cse9 (= ~a12~0 1)) (.cse13 (<= 2 ~a3~0)) (.cse15 (= ~a11~0 0)) (.cse14 (= ~a6~0 1)) (.cse6 (= ~a18~0 1)) (.cse16 (<= ~a27~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse3 .cse11 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse12 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse13 .cse12 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse15 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse13 .cse12 .cse15 .cse14 .cse6 .cse16) (and .cse8 .cse1 .cse9 .cse10 .cse3 .cse14 .cse6 .cse16) (and .cse8 .cse1 .cse9 .cse12 .cse3 .cse11 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse13 .cse12 .cse3 .cse14 .cse5 .cse6) (and .cse1 .cse9 .cse13 .cse15 .cse14 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse15 .cse14 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse13 .cse12 .cse3 .cse6 .cse16 .cse7) (and .cse1 .cse9 .cse13 .cse17 .cse15 .cse5 .cse6 .cse7) (and .cse1 .cse13 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse2 .cse17 .cse15 .cse4 .cse6 .cse16 .cse7) (and .cse8 .cse18 .cse1 .cse9 .cse13 .cse3 .cse6 .cse16 .cse7) (and .cse1 .cse10 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse12 .cse3 .cse6 .cse16 .cse7) (and .cse8 .cse1 .cse9 .cse2 .cse3 .cse11 .cse6 .cse16 .cse7) (and .cse1 .cse2 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse2 .cse3 .cse11 .cse4 .cse6 .cse16 .cse7) (and .cse18 .cse1 .cse12 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse8 .cse1 .cse3 .cse14 .cse4 .cse6 .cse16) (and .cse1 .cse9 .cse10 .cse12 .cse15 .cse14 .cse6 .cse16) (and .cse8 .cse18 .cse1 .cse9 .cse3 .cse11 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse10 .cse12 .cse3 .cse4 .cse6 .cse16 .cse7) (and .cse1 .cse9 .cse13 .cse12 .cse3 .cse14 .cse11 .cse5 .cse6) (and .cse1 .cse17 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse13 .cse15 .cse6 .cse16 .cse7) (and .cse8 .cse1 .cse2 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse18 .cse1 .cse9 .cse2 .cse12 .cse17 .cse3 .cse14 .cse6 .cse16) (and .cse1 .cse13 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse1 .cse9 .cse10 .cse12 .cse15 .cse6 .cse16 .cse7) (and .cse8 .cse1 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse8 .cse1 .cse2 .cse15 .cse4 .cse6 .cse16 .cse7) (and .cse1 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse3 .cse14 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse13 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse9 .cse12 .cse17 .cse15 .cse14 .cse11 .cse6 .cse16) (and .cse1 .cse15 .cse14 .cse4 .cse5 .cse6) (and .cse1 .cse10 .cse3 .cse14 .cse4 .cse6 .cse16) (and .cse18 .cse1 .cse15 .cse14 .cse11 .cse4 .cse6 .cse16) (and .cse0 .cse1 .cse9 .cse10 .cse3 .cse14 .cse5 .cse6) (and .cse1 .cse13 .cse17 .cse3 .cse4 .cse6 .cse16 .cse7) (and .cse8 .cse18 .cse1 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse1 .cse9 .cse10 .cse15 .cse11 .cse6 .cse16 .cse7) (and .cse1 .cse10 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse1 .cse9 .cse12 .cse3 .cse14 .cse11 .cse5 .cse6) (and .cse1 .cse10 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse1 .cse10 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse8 .cse1 .cse13 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse9 .cse2 .cse15 .cse14 .cse11 .cse6 .cse16) (and .cse8 .cse18 .cse1 .cse9 .cse13 .cse15 .cse14 .cse6 .cse16))) [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L860 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,839 INFO L857 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L857 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,840 INFO L853 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse17 (<= ~a26~0 0)) (.cse0 (= ~a15~0 1)) (.cse12 (or (= ~a23~0 1) (= ~a16~0 1) (= ~a7~0 1))) (.cse10 (<= ~a3~0 0)) (.cse3 (= ~a11~0 1)) (.cse4 (<= ~a12~0 0)) (.cse5 (= ~a27~0 1)) (.cse7 (<= ~a6~0 0)) (.cse2 (<= ~a3~0 1)) (.cse11 (= ~a4~0 1)) (.cse8 (= ~a26~0 1)) (.cse18 (= ~a25~0 1)) (.cse1 (= ~a5~0 1)) (.cse9 (= ~a12~0 1)) (.cse13 (<= 2 ~a3~0)) (.cse15 (= ~a11~0 0)) (.cse14 (= ~a6~0 1)) (.cse6 (= ~a18~0 1)) (.cse16 (<= ~a27~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse3 .cse11 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse12 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse13 .cse12 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse15 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse13 .cse12 .cse15 .cse14 .cse6 .cse16) (and .cse8 .cse1 .cse9 .cse10 .cse3 .cse14 .cse6 .cse16) (and .cse8 .cse1 .cse9 .cse12 .cse3 .cse11 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse13 .cse12 .cse3 .cse14 .cse5 .cse6) (and .cse1 .cse9 .cse13 .cse15 .cse14 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse15 .cse14 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse13 .cse12 .cse3 .cse6 .cse16 .cse7) (and .cse1 .cse9 .cse13 .cse17 .cse15 .cse5 .cse6 .cse7) (and .cse1 .cse13 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse2 .cse17 .cse15 .cse4 .cse6 .cse16 .cse7) (and .cse8 .cse18 .cse1 .cse9 .cse13 .cse3 .cse6 .cse16 .cse7) (and .cse1 .cse10 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse12 .cse3 .cse6 .cse16 .cse7) (and .cse8 .cse1 .cse9 .cse2 .cse3 .cse11 .cse6 .cse16 .cse7) (and .cse1 .cse2 .cse12 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse2 .cse3 .cse11 .cse4 .cse6 .cse16 .cse7) (and .cse18 .cse1 .cse12 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse8 .cse1 .cse3 .cse14 .cse4 .cse6 .cse16) (and .cse1 .cse9 .cse10 .cse12 .cse15 .cse14 .cse6 .cse16) (and .cse8 .cse18 .cse1 .cse9 .cse3 .cse11 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse10 .cse12 .cse3 .cse4 .cse6 .cse16 .cse7) (and .cse1 .cse9 .cse13 .cse12 .cse3 .cse14 .cse11 .cse5 .cse6) (and .cse1 .cse17 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse13 .cse15 .cse6 .cse16 .cse7) (and .cse8 .cse1 .cse2 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse18 .cse1 .cse9 .cse2 .cse12 .cse17 .cse3 .cse14 .cse6 .cse16) (and .cse1 .cse13 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse1 .cse9 .cse10 .cse12 .cse15 .cse6 .cse16 .cse7) (and .cse8 .cse1 .cse15 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse8 .cse1 .cse2 .cse15 .cse4 .cse6 .cse16 .cse7) (and .cse1 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse1 .cse9 .cse10 .cse3 .cse14 .cse5 .cse6) (and .cse8 .cse1 .cse9 .cse13 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse9 .cse12 .cse17 .cse15 .cse14 .cse11 .cse6 .cse16) (and .cse1 .cse15 .cse14 .cse4 .cse5 .cse6) (and .cse1 .cse10 .cse3 .cse14 .cse4 .cse6 .cse16) (and .cse18 .cse1 .cse15 .cse14 .cse11 .cse4 .cse6 .cse16) (and .cse0 .cse1 .cse9 .cse10 .cse3 .cse14 .cse5 .cse6) (and .cse1 .cse13 .cse17 .cse3 .cse4 .cse6 .cse16 .cse7) (and .cse8 .cse18 .cse1 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse1 .cse9 .cse10 .cse15 .cse11 .cse6 .cse16 .cse7) (and .cse1 .cse10 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse1 .cse9 .cse12 .cse3 .cse14 .cse11 .cse5 .cse6) (and .cse1 .cse10 .cse3 .cse14 .cse4 .cse5 .cse6) (and .cse1 .cse10 .cse15 .cse14 .cse4 .cse6 .cse16) (and .cse8 .cse1 .cse13 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse9 .cse2 .cse15 .cse14 .cse11 .cse6 .cse16) (and .cse8 .cse18 .cse1 .cse9 .cse13 .cse15 .cse14 .cse6 .cse16))) [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,841 INFO L857 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-08-25 20:49:21,842 INFO L857 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,843 INFO L857 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,844 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-08-25 20:49:21,845 INFO L857 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,846 INFO L857 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-08-25 20:49:21,849 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:49:21,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:49:21 BoogieIcfgContainer [2021-08-25 20:49:21,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:49:21,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:49:21,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:49:21,878 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:49:21,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:47:47" (3/4) ... [2021-08-25 20:49:21,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:49:21,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:49:21,901 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:49:21,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:49:21,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:49:21,999 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:49:22,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:49:22,001 INFO L168 Benchmark]: Toolchain (without parser) took 96403.48 ms. Allocated memory was 52.4 MB in the beginning and 9.1 GB in the end (delta: 9.0 GB). Free memory was 33.8 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 3.0 GB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,001 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:49:22,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.44 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 33.6 MB in the beginning and 31.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.55 ms. Allocated memory is still 69.2 MB. Free memory was 31.9 MB in the beginning and 30.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,002 INFO L168 Benchmark]: Boogie Preprocessor took 96.80 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 30.5 MB in the beginning and 58.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,002 INFO L168 Benchmark]: RCFGBuilder took 1399.93 ms. Allocated memory was 96.5 MB in the beginning and 159.4 MB in the end (delta: 62.9 MB). Free memory was 57.5 MB in the beginning and 77.9 MB in the end (delta: -20.4 MB). Peak memory consumption was 48.1 MB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,002 INFO L168 Benchmark]: TraceAbstraction took 94034.12 ms. Allocated memory was 159.4 MB in the beginning and 9.1 GB in the end (delta: 8.9 GB). Free memory was 77.9 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 7.1 GB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,002 INFO L168 Benchmark]: Witness Printer took 122.48 ms. Allocated memory is still 9.1 GB. Free memory was 6.1 GB in the beginning and 6.1 GB in the end (delta: 38.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:49:22,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.44 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 33.6 MB in the beginning and 31.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.55 ms. Allocated memory is still 69.2 MB. Free memory was 31.9 MB in the beginning and 30.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.80 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 30.5 MB in the beginning and 58.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1399.93 ms. Allocated memory was 96.5 MB in the beginning and 159.4 MB in the end (delta: 62.9 MB). Free memory was 57.5 MB in the beginning and 77.9 MB in the end (delta: -20.4 MB). Peak memory consumption was 48.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 94034.12 ms. Allocated memory was 159.4 MB in the beginning and 9.1 GB in the end (delta: 8.9 GB). Free memory was 77.9 MB in the beginning and 6.1 GB in the end (delta: -6.0 GB). Peak memory consumption was 7.1 GB. Max. memory is 16.1 GB. * Witness Printer took 122.48 ms. Allocated memory is still 9.1 GB. Free memory was 6.1 GB in the beginning and 6.1 GB in the end (delta: 38.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1597]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 93958.0ms, OverallIterations: 19, TraceHistogramMax: 7, EmptinessCheckTime: 515.6ms, AutomataDifference: 19481.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 53301.4ms, InitialAbstractionConstructionTime: 15.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3810 SDtfs, 5257 SDslu, 1002 SDs, 0 SdLazy, 13805 SolverSat, 2407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10275.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2327 GetRequests, 2271 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 794.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=197025occurred in iteration=18, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7034.9ms AutomataMinimizationTime, 19 MinimizatonAttempts, 35559 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 1787 NumberOfFragments, 2939 HoareAnnotationTreeSize, 3 FomulaSimplifications, 188818 FormulaSimplificationTreeSizeReduction, 24736.8ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 57130 FormulaSimplificationTreeSizeReductionInter, 28545.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 421.1ms SsaConstructionTime, 1208.1ms SatisfiabilityAnalysisTime, 7889.5ms InterpolantComputationTime, 7818 NumberOfCodeBlocks, 7818 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 7792 ConstructedInterpolants, 0 QuantifiedInterpolants, 33041 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4078 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 4859/5057 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: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((a15 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || ((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a6 == 1) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a26 <= 0) && a11 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && a26 <= 0) && a11 == 0) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a25 == 1) && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 1) && a11 == 1) && a4 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a4 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a25 == 1 && a5 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 1) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a25 == 1) && a5 == 1) && a12 == 1) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a5 == 1 && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a26 <= 0) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || (((((((((a25 == 1 && a5 == 1) && a12 == 1) && a3 <= 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a26 <= 0) && a11 == 1) && a6 == 1) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 0) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a26 <= 0) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a5 == 1 && a12 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a26 <= 0) && a11 == 0) && a6 == 1) && a4 == 1) && a18 == 1) && a27 <= 0)) || (((((a5 == 1 && a11 == 0) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a25 == 1 && a5 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a15 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a25 == 1) && a5 == 1) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && a12 == 1) && a3 <= 0) && a11 == 0) && a4 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((((a15 == 1 && a26 == 1) && a5 == 1) && a12 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a3 <= 0) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && a12 == 1) && a3 <= 1) && a11 == 0) && a6 == 1) && a4 == 1) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a25 == 1) && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((a15 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || ((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a6 == 1) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((a26 == 1 && a5 == 1) && a12 == 1) && a11 == 0) && a6 == 1) && a27 == 1) && a18 == 1)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a12 == 1) && 2 <= a3) && a26 <= 0) && a11 == 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && a26 <= 0) && a11 == 0) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a25 == 1) && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 1) && a11 == 1) && a4 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a5 == 1 && a3 <= 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a4 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a25 == 1 && a5 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 1) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a25 == 1) && a5 == 1) && a12 == 1) && a11 == 1) && a4 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a26 == 1 && a5 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((((a5 == 1 && a12 == 1) && 2 <= a3) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a26 <= 0) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || (((((((((a25 == 1 && a5 == 1) && a12 == 1) && a3 <= 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a26 <= 0) && a11 == 1) && a6 == 1) && a18 == 1) && a27 <= 0)) || ((((((a5 == 1 && 2 <= a3) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a5 == 1 && a12 == 1) && a3 <= 0) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 0) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((a26 == 1 && a5 == 1) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && a3 <= 1) && a11 == 0) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a26 <= 0) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || (((((((a26 == 1 && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 1) && a27 == 1) && a18 == 1) && a6 <= 0)) || ((((((((a5 == 1 && a12 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a26 <= 0) && a11 == 0) && a6 == 1) && a4 == 1) && a18 == 1) && a27 <= 0)) || (((((a5 == 1 && a11 == 0) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a25 == 1 && a5 == 1) && a11 == 0) && a6 == 1) && a4 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a15 == 1 && a5 == 1) && a12 == 1) && a3 <= 0) && a11 == 1) && a6 == 1) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && 2 <= a3) && a26 <= 0) && a11 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0) && a6 <= 0)) || (((((((a26 == 1 && a25 == 1) && a5 == 1) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || (((((((a5 == 1 && a12 == 1) && a3 <= 0) && a11 == 0) && a4 == 1) && a18 == 1) && a27 <= 0) && a6 <= 0)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((((a15 == 1 && a26 == 1) && a5 == 1) && a12 == 1) && ((a23 == 1 || a16 == 1) || a7 == 1)) && a11 == 1) && a6 == 1) && a4 == 1) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a3 <= 0) && a11 == 1) && a6 == 1) && a12 <= 0) && a27 == 1) && a18 == 1)) || ((((((a5 == 1 && a3 <= 0) && a11 == 0) && a6 == 1) && a12 <= 0) && a18 == 1) && a27 <= 0)) || (((((((a26 == 1 && a5 == 1) && 2 <= a3) && a11 == 1) && a12 <= 0) && a27 == 1) && a18 == 1) && a6 <= 0)) || (((((((a5 == 1 && a12 == 1) && a3 <= 1) && a11 == 0) && a6 == 1) && a4 == 1) && a18 == 1) && a27 <= 0)) || ((((((((a26 == 1 && a25 == 1) && a5 == 1) && a12 == 1) && 2 <= a3) && a11 == 0) && a6 == 1) && a18 == 1) && a27 <= 0) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:49:22,058 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...